Chapter 1 User Demand Analysis Informationization is an integral part of my country's modern construction, which can greatly improve my country's comprehensive national strength. It is related to government departments, economics, science and technology, cultural institutions, all aspects of all society. At present, the national gold series project hosted by various ministries and communities is to establish comprehensive statistics, industrial economic, taxation, investment, resources, energy, transportation and other comprehensive information systems, and establish a national economy and national office decision support system. The construction of the third middle school information network in Guangzhou is a comprehensive information base platform for teaching research and teaching data accumulation. It is based on computer network, combined with database technology, local area network technology, and various teaching equipment to achieve teaching data. Collection, transmission, exchange, and services of class teaching information. Information networks are of great importance and irreplaceable roles in the construction of teaching system. At the beginning of 2003, Guangzhou Third Middle School completed the first phase of education informationization project, and received praise from leaders at all levels. In November 2003, three special function rooms and 20 conventional classroom telegraphs The construction of the project and 1 computer teaching room update project, this second informationization construction is an important infrastructure of the school is an improvement. It is a bridge that the school further towards modernization is a demonstration window and district school education repository. Base. It has a modernization of the school's education, cultivated to innovative talents, teaching reform and education development in the 21st century, and improve the comprehensive strength and competitiveness of the school, and comprehensively improve the school automation, learning level, and has great practical significance and strategy. major. Now, the new teaching building of the third middle school has been completed, in order to cooperate with the enlightenment of the new teaching building, the third middle school plan is planned to carry out the information construction. The new teaching building includes 25 conventional classrooms, 3 multi-function rooms and 1 centrifudes, 2 IT rooms and 2 dedicated multimedia computer classrooms. Ø Project content This informationization will include integrated wiring, network engineering and multimedia electronics platform. According to the standard requirements, the construction is as follows: Integrated wiring project: Integrated wiring project will cover all courses of new teaching buildings, used as multimedia teaching, monitoring, broadcasting, etc. And the original network wiring is connected to ensure compatibility with the old network wiring portions. Network System: Increase several secondary backbone switches and enter the original network. Multimedia Electronics Platform: Add projectors, physical booths, amplifiers, audio, etc. for classrooms, and equipped with servers, PCs, etc.
Chapter 2 Overall Solutions 2.1 System Design Principles According to the above demand analysis and our experience, we believe that a computer information network system is designed, there must be a good design guiding ideology. Through reasonable selection of structured wiring systems, network structures, network equipment, etc., it can form a truly utility network information system. As a well-known system integrator, we have first-class information management, network construction technology and rich application development experience. In planning for information construction in Guangzhou Third Middle School (hereinafter referred to as 3 ", we will perform system design in accordance with the principles of the following: 1. Practicality fully meets the current and future needs of the three-Chinese network, let The structured wiring system is truly supported by the computer network construction of the third middle school in Guangzhou. 2. The design of the standard technology is in accordance with the internationally available standards, and the system's openness is improved, and the system is expanded, upgraded, and improved with the development of technology. 3. High-reliability A practical system must be reliable, this design is designed and soft, hardware optimized selection through reasonable and advanced network system, to ensure the reliability and fault tolerance of the system to avoid catastrophic accidents. 4. High performance, advanced nature This system also has a variety of applications, and the data exchange will be large, so the system requires a large bandwidth. This design will fully apply existing mature advanced technology, select advanced equipment, provide high-performance systems, adopting advanced software technology, providing reliable, efficient services to Guangzhou Third Middle School. 5. High security in the design, make full use of all kinds of security measures provided by network hardware, network software and systems, ensuring that users of Guangzhou Third Middle School can not only efficiently, quickly access system resources within the scope of the rights, but also Effectively prevent illegal intrusion between users, unauthorized access, and ensure the security of important data of each department. 6. After the maintenance system is opened, the maintenance work will be a long-term job, taking into account the visualization, hierarchical and control of management and maintenance, this design will make full use of the corresponding graphical network management technology, truly system All resources are at a glance, fully guarantee the control of the equipment failure in limited range to ensure the normal operation of each system of the whole building. At the same time, through training and establishment, improved users' system administrators and other corresponding means to reduce maintenance workload and difficulty, thereby achieving reliable operational and cost-effective purposes. 7. Scalability and flexibility network technology is non-stop, and users' application needs are also developing and changing. In the design, we will fully consider the potential requirements of the network application system extension upgrade, as well as support for various structures, different protocols, different standards, and ensure that the system can adapt to the expansion and upgrade of network systems and application systems. . 8. Economic under the premise of meeting the functional requirements, do less money as much as possible, do more, make full use of existing resources, and improve system performance ratio. 2.2 Overall Solutions The technical part of this technical section will be mainly proposed for a specific solution for network engineering construction to be carried out in Guangzhou Third Middle School. The entire project construction includes the following parts: 2 Integrated wiring system 2 Computer network system 2 Multimedia classroom construction 1. Structured integrated wiring system construction Upper application can only achieve good implementation on a good hardware platform. Therefore, Guangzhou Third Middle School must first establish a standard structured wiring system to provide high quality transmission media for computer network systems. To this end, we will design a set of open, flexibility and scalability, complying with international standards for the construction of the new teaching building. According to the distribution of information points in the third, we recommend the management mode of double-point dual delivery. For the layout of the building, the main equipment (collecting room room) is located in the five floors of the new teaching building, the third floor, the sixth floor set up allocation line, 2 IT rooms and 2 special computer rooms also have a management point, The management points are introduced into the optical fiber trunk connection to the main device. For building layout, the optical fiber is introduced into the high school building in the high school building in the collection room, multi-function studio and gymnasium, respectively.
2. Computer Network System In order to make the information system successfully implemented, a high-performance computer network system must establish a high-performance computer network system as the basis for the implementation of information system implementation for new information nodes. In terms of local area network construction, we recommend using full swap fast Ethernet solutions, and the network connection structure is a star topology, 10 / 100m swaps to the desktop. According to user needs, a collection layer switch is equipped in the new teaching building, and the product uses Cisco's WS-C4503 and configures the corresponding Gigabit module. Sub-wiring is equipped. The secondary switch adopts the Zhanda S2024 chrysanthemum chain stacked switch and is equipped with the corresponding stack and fiber module. In addition, there is a need for the original central switch Cisco 4006 to access the corresponding Gigabit module, access the new teaching building, gymnasium, and multi-functional studio into the entire campus network. 3, multimedia Electronics Platform With the development of education technology, traditional "chalk blackboard" teaching model is increasingly unable to meet the needs of development. The emergence and development of new teaching modes, projectors, video booths, PCs, and networks, etc., making the transition of traditional education model to interactive new teaching model. The construction of the multimedia teaching platform in the third medium is mainly equipped with a variety of multimedia teaching equipment such as a suitable projector, video booth, amplifier, speaker, etc., and is equipped with PCs, servers, multimedia teaching software, etc. for IT rooms, special multimedia classrooms. To achieve interactive multimedia teaching. Detailed solutions are invited to see the following sections.
Chapter 3 Structured Wiring System Construction In order to improve the quality of running schools, improve learning and work efficiency, reduce the labor intensity of staff, and conduct a comprehensive wiring system construction on new buildings. The completed wiring system can be used for the transfer of data, images, voice, and other information, connects the schools of the school and various computer rooms, so that the school's information equipment can be easily connected to the campus network. This project also includes voice wiring, and the voice point wiring will be unified with the data point wiring. According to the design idea of the six subsystems of the structured wiring system, the three-middle new teaching building wiring system is composed of a working area subsystem, a horizontal zone system, a vertical main bonus subsystem, a management subsystem, a subsystem, and a building group system. This wiring system is a star topology. The horizontal subsystem adopts super five twisted pair. The vertical subsystem uses a 6-core multi-mode optical fiber. The main room of the building groups is connected to the main room of each building in the school. Armored multi-mode optical cable, and 6-core outdoor armor single-mode optical cable. The system can support speech and data. 3.1 Wiring Needs New Teaching Building include 25 classrooms, 4 functional rooms and 2 IT rooms, 2 dedicated computer rooms. In addition, the gymnasium needs 20 information points. The data points are distributed as follows: (2 IT rooms, 2 special computer rooms separately route) General Classroom Construction Architecture Number of Information Dumi Class Class 25 3 75 Function Room (three multi-function rooms and A voyele beauty classroom) 4 2 8 laboratory 12 2 24 Yidumei special classroom 3 2 6 Physiochemical class preparation room 3 2 6 Teacher Office 3 more than 20 20 20 20 20 20 20 20 20 20 20 20 2 20 20 Room 4 62 248 Information Capitatter 497
The speech point is shown: Construction Architecture Quantities Speech Point Small Course Class 25 1 25 Function Room (Three Multi - Fikai and One Youth Beauty Classroom) 4 1 4Irt Room 2 1 1 Special Computer Room 2 1 1 Lab 12 1 12 Beautiful special classroom 3 1 3 Physiochemical class preparation room 3 1 3 Teacher Office 3 3 9 Multi-Functional Studio 1 2 2 Gymnasium 1 3 3 Speech Point Total 63
3.2 Design principles Structured wiring system is a modern building or a group of information transmission network systems, which constitutes a unified voice, data, image, multimedia information, and automatic control of modern buildings by standardized transmission media and various standardized components. The signal transmission system is a wiring system that meets the industrial standard, which is convenient for users to move, increase, and change, and the integrated wiring is a modular system, easy to expand and reassign. According to the bidding documents and wiring requirements, we are strict, scientifically designed according to the following principles. · Standardization: Strictly in accordance with the standard ISO11801, TIA / EIA 568A, GB / T50312-2000 of the International Commercial Telecom Building Telecommunications System. • Practical: The implementation of the structured wiring system will be able to meet the needs of the current development of future adaptation technologies, realize data communication, voice communication, and image communication. · Flexibility: Since all information systems use the same transmission medium, the physical structure uses star wiring mode, so all information channels are common, each information channel can support telephone, fax, multi-user terminal, 10BASE-T workstation, order Local ring station and HP9000 series, Sun SPARC and Enterprise Series, DEC / Alpha, IBM AS / 400E, RS6000, ES9000 Host and 100Base-T, 155MB / S, and 622MB / s ATM or even 1000BASE-TX applications. The opening and changes to all devices do not need to change the wiring system, simply increase or decrease the corresponding network devices and make the necessary jumper management; system networking can also be flexible, even more user terminals in the same room, 100Base- T workstation, token loops, each department can easily interconnect, providing a necessary condition for rational organizational information. · Modular: In the wiring system, all connections are standards for building blocks to facilitate management and use. · Expansion: Consider expandability so that there is more development and demand in the future, it is possible to expand it in. · Advancement: Adopt Elastic Wiring Concept, using fiber and twisted pair (UTP) mixing method, extremely reasonably constitute a complete set of wiring systems. All wiring design uses the world's latest communication standard. All information channels are in an eight-core configuration in accordance with the international wiring standard. The trunk cable can be designed as a transmission speed of 1G Ethernet, providing sufficient capacity for future development. Through the backbone channel, multiple real-time multimedia information can be transmitted simultaneously, and the physical star formation has laid a solid foundation for future development swap networks. The commitment is a wiring, and the twenty years is not behind. · Economic: On the basis of meeting application requirements, minimize costs. The design and construction of this project will refer to the following criteria: 2 TIA / EIA568-A Integrated Wiring System Standard (North America) 2 TIA569 Architectural Communication Line Spacing (North America) 2 TIA / EIA570 Residential and Small Commercial Communication Wiring System (North America) 2 TIA / EIA606 Commercial Construction Communication Infrastructure Management Specification (North America) 2 TIA / EIA TSB67 Non-shielded Twisted Wiring Test Standard (North America) 2 CEC89: 97 Construction and Construction Group Integrated Wiring System Engineering Construction and Acceptance Norm 2 ISO / IEC11801 International Integrated wiring super five channel standard 2 YD / T926.1-1997 Building Communication Integrated Wiring System Standard (Post and Electronics Department) 3.3 Wiring Product Selection On the selection of wiring materials, due to the quality of the material selection directly affects the system Running, good system design requires a suitable device to reflect the design characteristics to ensure investment benefits. For this program, we follow the following principles when selecting devices: 1. Has availability. It can support the practicality of the design, which is the most basic requirement. 2. Support design ideas. It can reflect the characteristics of the design, making the design characteristics, such as the reliability, flexibility, and scaifery, etc.
3. Its manufacturer has supported strong support, and the manufacturer's product should be relatively complete, technical indicators should be in a leading position in similar products, and provide longer-term guarantees. 4. Third Party supports more, including corresponding platform support, application support, development management support, etc. 5. Economic, product performance / price ratio is high. 6. Compatibility, in line with international standards, easy to expand. This program, we recommend using Avaya Corporation (now COMMSCOPE) wiring products. Avaya is a wiring vendor currently have a considerable influence in our market. Its SYSTIMAX PDS wiring system is a complete set of wiring systems. All of its products are designed by Avaya Bell laboratory, which is a complete standard system formed based on standard combinations and standard tests. The open structure and the perfect combination of the performance of the devices make PDS support the integration of various systems and equipment, providing the user's application to the future technology advancement, flexibility. Avaya (At that time, Lucent Technology) was launched in October 1996, which was launched by its superior and superior line to parallel transmission and impedance matching technology, which made its UTP wiring system end-to-end (Point to Point) Channel attenuation Attenuation, near-end crowd decay NEXT, ACR, EMI and other indicators, are greatly over TIA / EIA 568-A and ISO / IEC 11801 industry standards. Its unique cable and connector matching construction, which makes it possible to maintain optimal transmission performance in various harsh installation environments, indicating that the PowerSum system is not only attenuated, near-terminal The performance indicators such as string attenuation (NEXT) are far from FTP / STP and other systems, and the EMC indicators also exceed the FTP / STP and other shielded cable systems in practical applications. The design standard for Avaya's products is in fact the standards of the industry. Avaya also took the lead in launching the end-to-end Gigaspeed wiring solution that support Gigabit Ethernet. Avaya provides its users with a 20-year system guarantee, including extended product guarantees and application guarantees. From a long-term investment, considering the three-Central Plain wiring system is also an Avaya's integrated wiring system. This program we recommend using the wiring products of Avaya, and build a comprehensive wiring system for the three-China New Teaching Building in SYSTIMAX products. Provide a future, integrated, efficient information transmission channel for the three, and obtain Avaya20 quality certificates. 3.4 System Overall Structure Design Junction Structured Wiring System From Material Configuration, Mainly useful for information transmission numbers, sound, images of fiber and twisted pair, used for optical fibers and twisted pair connected jumper, distribution box, And information sockets, adapters and other various accessories for each information. Fiber and twisted pair are the standard transmission medium of the structured wiring system, which replaces the media criteria for individual manufacturers or organization, such as various coaxial cables, multi-core cables, docal coaxial cables, etc. Therefore, this allows the entire building to wiring before the renovation, which has been standardized, unified, convenient to manage, and maintenance. Jumper, wiring box, connection and distribution of different walking cables to achieve modular management. By jumping on different cables on the jumper, the use and direction of the cable can be easily changed. Information sockets and adapters are used to transfer terminal devices such as computer, telephone, video, and monitoring interface signals to standard transmission media. It allows the data, sound and image signals of each manufacturer to transmit in uniform fibers and twisted pairs. Through the entire wiring system, you can truly implement unified management and flexible applications of information networks, different information (sound, images, numbers, industrial control signals, etc.) can be transmitted through the same set of information network systems. The convenience of management and extension is also Incomparable.
The structured wiring system can form the following structured subsystems: Working zone subsystem, horizontal darter system, management subsystem, vertical main dry subsystem, equipment Sub-system, and buildings. The six subsystems are shown below: Typically, the wiring system generally uses a single point management system or a two-point management system for design. The single management system has only one management unit, which is responsible for the information node management of the entire building, so it is called a single management system. The system has two wiring methods, one is to set up a device in the entire building as a delivery area, and the information nodes in the building are directly targeted and between devices, called a single single single interchange system. This system is suitable for wiring systems with low floors and less information points. The other also has a device as a delivery area, and it is also provided with a line between the rows, but does not jumper management, called a single dual dual delivery system. The system is easy to wiring construction, suitable for high floors, more information points, distance (distance from information nodes between the device and the device) without exceeding 100 meters. The double point management system sets a management subsystem at each floor. It is responsible for managing the information node of the floor. The building also establishes a device. All floor management subsystems are connected to the equipment with the equipment, because each The information node has two manageable units, so the system is called a double point management system. It is suitable for wiring systems with high floors and more information points. The wiring system is quite flexible, we can choose the best solution design based on the actual situation. In the construction of new teaching building in this three, we will adopt a two-point dual relational management model. 3.4.1 Working zone subsystem workspace consists of various office areas, consisting of terminal devices and their connection to the horizontal subsystem information holder, generally equipped with communication junction boxes, installing the corresponding panel and according to the terminal Apply and the corresponding information module. Connect to the terminal such as a telephone, a personal computer, and a workstation with the information module. The information socket is a standard RJ-45 module socket in accordance with the 8-position combination of the TIA / EIA568A or TIA / EIA568B wiring standard in accordance with the international standard. Jumping lines are generally wired in RJ-45-eight-core and have a modular interface, a balanced converter, or a network connection adapter. The working area subsystem workpiece subsystem consists of a two-ended 4-ended 4-to-twisted pair of twisted pairs, as a workshop, as a bridge between the computer and the information socket. The voice device uses a subscriber line of the phone back to the RJ11 connector. 3.4.2 Level Subsystem Level System includes horizontal twisted cables extending from the workspace information outlet to the dispensing box of each layer. Data and voice transmission media use super five types of 8-core twisted pair to support 100Mbps transfer rate; the selected cable has extremely high anti-electromagnetic interference (EMC), with high alternate redundancy, so that the system has Very high reliability and flexibility. Both the inter-wiring inter-terminal connector and the information socket are point-to-point terminal, any changes to the wiring system (such as increased or decrease users, user address changes, etc.) do not affect the operation of the entire system, and increase or decrease the user only IDF can make the necessary jumpers, so that the system has strong flexibility, scalability, and is a real system line fault overhaul provides great convenience and safe and reliable. Horizontal Sizes This solution uses 1053004 Cs super five types of 4 pairs of non-shielded twisted pair as a horizontal subsystem to support 100M or more transmission rates.
The information socket is made of a super five type information socket C5-262, which is distributed in various workspaces, and is fixed in a variety of ways. All of the above information is produced in international standards and complies with TIA / EIA 568-A standard, all of which are RJ45 and compatible with the current telephone system RJ11 interface. Convert the plug call, microcomputer or data terminals. 3.4.3 Vertical Main Dry Subsystem The vertical master system is a transmission medium connected throughout the horizontal zone system of the entire building. It connects the horizontal distribution frame (IDF) and the total distribution frame (MDF) to the star structure. In the vertical shaft of the building. The vertical main drum subsystem transmission medium can use a fiber or a large logarithmic twisted pair. Vertical main dry subsystem data wiring We use the Avaya six-core multimode fiber as a vertical trunk, connect the distribution line and the assembly layer wiring. The voice portion uses the Avaya 3 class 50 to large logarithmic twisted pairs, and is connected to each wiring through weak wells. For the gymnasium and multi-functional studio, this system is not included because of fewer points. 3.4.4 Administrative subsystem management subsystem consists of a trunk, interconnect wiring. The management point provides connection means for connecting other subsystems. CONCECTY and interconnects allow communication lines to be positioned or relocated to different parts of the building so that the communication line can be easily managed, so that the interruption can be easily swapped in the mobile terminal device. The allocation line is the installation site of each management subsystem. For information points, it is not a lot of floors, and can share a sub-wiring in order to facilitate management. According to the actual situation of the three, the six-way floor is configured; the floor should be in the information. This layer sets a wiring. The position between the wiring is optional in the room near the weak electric shaft. Wiring between mounting wiring and installing computer network communication devices. We use the 19-inch 24/42U cabinet as a support hardware, the modular wiring and network equipment are installed inside. Between the two through jumpers, it is very easy to configure management, and it is beautiful and generous. According to the specific characteristics of the third, there is a wiring arrangement, and the horizontal subsystem is connected, and the horizontal subsystem is connected to the management room, and the interconnection of the jumper and network device. High speed data communication network constitutes the entire building. The voice signal and the management wiring are connected to the program-controlled switch room via a large logarithmic cable. In the management room, a fiber optic wiring is provided, a six-core fiber, which leads to the fiber optic cable of the central computer room to connect to the network device. Each of the fiber optic cables, the fiber core, the fiber optic core, the fiber optic passage, can be managed, and the fiber optic passage will be changed to ensure that the fiber optic passage in the link is working properly. It makes up a high-end intelligent network management system. The multi-functional studio and the stadium do not contain this system. 3.4.5 Equipment Subsystems We spare a multi-group 110 wiring frame in weak electricity control unit, and the end of the vertical logarithmic cable is used to manage the telephone communications of the entire building. And install the 19 "cabinet fiber distribution frame, the optical fibers that are tapped, and connected to the network switch of Zhanda, through the host management of the entire local area network, constitute the high-speed information system in the building. 3.4.6 Buildings Dunk subsystem The group system wiring is mainly used to connect the buildings in the three campus, which connects the relatively independent wiring system in each building into an organic overall, constitutes a complete campus integrated wiring system. Building inter-building wiring belongs to the construction group system The subsystem extends the cable in a building to the communication equipment and device in another building of the building. The computer data transmission requires a fast speed, the transmission performance is stable, so the room wiring should be used as a transmission medium. The fiber transmission distance is long, the signal is reliable, and the anti-interference ability is strong. It can adapt to a variety of harsh environments. In accordance with the actual demand situation in the third, the buildings are connected to the campus network center through Gigabit fiber, and the entire campus network will be in high school building. The machine room is centered, and the star structure is used to achieve the connection between each building. The connection between the various buildings in the campus will use the six-core, eight-core fiber, including the eight-core, other use six-core Each fiber uses two cores, the rest.
The fiber system uses a full star structure, so the nodes are independent of each other, and any of the faults does not affect the normal operation of other nodes. The schematic diagram of the wiring of the three construction groups is as follows:
Chapter 4 Computer Network System Construction In the previous sep, we have conducted a comprehensive wiring system for the three new teaching buildings. On the one hand, the integrated wiring provides a communication medium for the network system, so the design of the network structure should consider the integrated wiring system. On the other hand, the network structure and integrated wiring system are relatively independent, and a set of excellent wiring systems should provide support for a variety of network structures. And we will also consider a combination of multiple network structures and products. This section will be designed for the configuration of the three-China New Teaching Building to configure the aggregation layer switch and its sub-wiring between the sub-wiring, the stadium, multi-functional studio, etc. 4.1 Design principles According to the network needs of three, this web design will be designed based on the requirements of fiber main 1000m, 100m to the desktop. The design of this program is integrated in the premiere, economic practical premise, in a rigorous, cautious attitude, from system structure, technical measures, equipment selection, system application, technical services, and implementation, etc. To make the system truly become a network system that meets the development needs of the three middle. From the perspective of technical measures, in the design and implementation of the system, our company will strictly abide by the following principles: the software and hardware design of practicality and integrated systems, or integration, all should be applied as the first purpose, and adapt to the system Other performance is then considered on the basis of application requirements. There are many more content that the system is included, and the system designer must effectively integrate various advanced hardware and software devices to make the various components of the system fully function, coordinate and consistently perform efficient work. Standardity and openness can only support standard and open systems to work together with other open systems, and hardware devices and software products used in the network should support international industrial standards or factual standards so that they can Open products of different manufacturers coexist in the same network; the standard communication protocols should be adopted to make different operating systems and different network systems and different networks. Advanced and safety systems All constituent elements should fully consider its advanced nature. We can't pursue practical and ignore advanced, only to combine today's most advanced technology and our practical application requirements to achieve maximum system performance and benefits. The security of the network is critical. In some cases, the part of the adoption of the system must also guarantee the security of the system. Ripeness and high reliability as the network structure of the information system and the configuration and bandwidth of network equipment should fully meet the needs of network communications. The network hardware architecture should have a longer test in practical applications. It should be stable and reliable in operation and performance, and have more third-party developers and users. Wide support and use globally. At the same time, we should choose from long-term technology, more advanced technology and products, to adapt to the future development needs of the system. Reliability is also one of the important criteria for measuring a computer application system. In the premise of ensuring the stability of individual devices in the system network environment, consider the fault tolerance, security and stability of the network, so that the system can quickly fix the system. There is therefore need to take certain precautions, such as consideration of appropriate redundancy for critical applications and backbone equipment. The emergency processing information system is able to work all day and reaches 7X24 hours of work every week. A high availability system can make the user's investment really reward. The interconnecting devices in the maintenanceability and manageability of the entire information network system should be convenient to use, easy to learn, and easy to maintain and manage. For complex and huge networks, there is a powerful network management means to reasonably manage network resources, monitor network status and control network operation. Therefore, the network device selected by the network should support SNMP, RMON, SMON and other protocols, and the administrator can easily carry out network management, maintenance and even repair through the NMS workstation. When designing and implementing a computer application system, it is necessary to fully consider the convenience of the entire system, so that the system can provide effective means in case of failure to restore timely recovery, minimize losses.
The topology of the expandability and compatibility networks should have scalability, that is, network links must have expanded and upgraded in terms of system structure, system capacity and processing power, physical connection, product support, etc., and products adopted to follow common Industrial standards so that different types of equipment can be easily and flexibly connected to the network and meet the requirements of system scale expansion. In order to protect the original development investment in the case where the system can be changed, when designing the system, the system should be modular, and the function module can be increased and deleted as needed. Other decisive factors in the design of system integration, there is a need for comprehensive consideration of user needs. For example, the estimate of network data traffic is an important basis for the bandwidth of the network. Taking the information service system as an example, its working mode is mainly divided into local area network internal workstations to access information resources on the network server and remote computer on this LAN network server There are two access to resources. Since the local network workstation access to the network server may cause the network's largest data traffic, the connection between the server and the network device becomes a system bottleneck, so that the network occurs, so it is necessary to make a general estimate of this data traffic so that Follow the estimated network devices and communication bandwidths that are equivalent to configure capacity between servers and workstations. Compliance with the above design principles, select advanced technology, economical, strong, reliable, scalable equipment, to ensure that the system has high performance price ratio, users to use as much investment scale as much as possible The biggest benefit. 4.2 Selection of Network Technology 1. The choice of network technology is currently, the network technology has changed, new products are constantly emerging, so analyze the needs of various network technology and their own needs, it is very important to choose the right network technology and products. Current popular network technology has fast Ethernet, Gigabit Ethernet, FDDI, ATM, etc., they have their own advantages, with different applications. FDDI is the earliest 100M network technology, which has developed to now, more secure, supportable transmission distance, but its corresponding network products are expensive, and technology is impossible to have new breakthroughs. Bone network for campus network. ATM is a new network technology that supports a transmission rate of more than 100M, providing reliable transmission service quality (QoS), especially suitable for wide area network connection and multimedia applications, but its interface products are expensive. The maximum advantage of fast Ethernet is simple, practical, cheap and easy to spread, and is well received by users. Since it is an extension of traditional 10M Ethernet technology, there is no MTU problem facing FDDI. Fast Ethernet uses fibers to transfer distances up to 2 km, and STP technology can be used for fault tolerance. It is especially necessary to emphasize the price of fast Ethernet products is difficult to match any other technique. With the completion of the IEEE Gigabit Ethernet specification, various Gigabit Ethernet network equipment has been launched, and the technology has matured. Gigabit Ethernet is a 10m Ethernet and 100M Fast Ethernet connection standard extension, providing 10 times the bandwidth of 100M fast Ethernet, and now is now widely used in the network of data traffic such as securities, government, is the development of Ethernet. direction. Gigabit Ethernet advantages are simple, performance ratio high, which will increase 10 times in the price of 2 to 3 times faster Ethernet, and is easily interconnected with Ethernet and fast Ethernet that have been used in large quantities. Therefore, this project we recommend using Gigabit Ethernet. 2. Selection of the way Ethernet is divided into three kinds of shared, swap and route swap. 1. Shared network: Each workstation, all 10M or 100M network bus. All machines on the network constitute a conflict domain Ethernet. If the number of workstations is not much, the performance is acceptable. When the number of workstations increases, when the use is different, the network broadcast will occupy all the bandwidth of the network so that the network cannot be used.
2. Switching network: The switch bridges the workstation, the server, allows the workstation, the server occupies 10M, 100M or 1000M network bandwidth, can realize direct communication of point-to-point points, which is divided into multiple network segments in the second floor of the network. To reduce certain broadcast information, improve effective bandwidth. The technology also supports the setting of the virtual network (VLAN), which can divide the network into multiple subnets to form a plurality of conflict domains to further improve network bandwidth and network security. However, the communication between the VLAN should pass through the router. The processing power of the router is much lower than the switch, and the communication between VLANs will be slow. 3. Routing Network: The switch supports the third layer exchange, that is, routing function, enabling communication between the VLANs without externalization, and the processing speed is faster than the traditional router. (1) Although the existence of the necessary switches of the third layer exchange technology can divide the network into multiple network segments, high-speed forwarding between the network segments, but today's LAN switches still use the entire exchange type LAN as a logical network. It transfers the broadcast information flow and the multiple access network information to all ports, causing unnecessary overhead. In order to control network traffic or keep each other between the terminal systems, it is necessary to use a router in the LAN. The router reduces broadcast information and multicast information flow. They are also used to provide security and filter out certain information flows according to management policy. However, the router is much more expensive than the LAN switch, and the configuration work is more complicated. On the other hand, although the router is better to control network traffic than the switch, the router usually rely on software and universal CPUs, and thus the delay is large, and the forwarding speed is slow. Today, the exchange rate of data networks is getting faster and faster, Gigabit Ethernet and ATM OC-12 (622M) technology have been available. At the same time, the information flow model in the data network is also undergoing significant changes. Intranet and various new information shared applications add traffic flow between subnets. The delay of the router is large, the shortcomings with low forwarding rates make the router necessarily become the bottleneck of the network. In order to solve these problems, the third floor exchange came into being. The third floor exchange technology provides a very natural solution to the LAN router bottleneck problem. It integrates existing routes and exchange technologies to a separate device and retains the most critical strengths in the two technologies: it provides data between networks, thus achieving normification and logicalization of networks; Aspect, but it has the characteristics of the fast, single, economic characteristics unique to the switch, providing data exchange capacity in the network. In a word, the third layer exchanges the traffic of the data to provide the routing function of the line speed. (2) Advantages of Layer 3 Exchange Technology ● Performance: Performing the routing function of the LAN in the exchange rate, eliminating the bottleneck problem of the router. ● Management simplifies: can coordinate with the existing network devices and protocols, easier to install, set, and manage, setting up, setting, and manage. ● Low investment: replacing an expensive router with a third-layer switch, can greatly reduce upgrade and maintenance costs. Since there are multiple departments in each campus network, there will be a variety of applications in the future, in order to improve the security and routing exchange capacity of network system platforms, consider the advantages and bidding requirements of the third floor exchange technology, and The networking part still uses the third-level switch Gigabit Ethernet technology. The network is a Gigabit, and each working group network is 100M access. The three-middle network topology is as follows: 4.3 Selection device selection of network devices Directly affects the operating state of the system. A good system design requires a suitable device to reflect the design characteristics to ensure investment benefits. 4.3.1 Convergence Layer Switch Considering the center switch configured by the third phase of Cisco 4006, and the assembly layer has a higher performance requirements, so for collecting mounting machine rooms, we choose Cisco C3550-48-EMI and WS- C3550-12G Stack. Cisco Systems is a global leading Internet equipment supplier.
Its network device and application plan will link people around the world, computing equipment, and networks, enabling people to use various devices anytime, anywhere. Cisco provides customers with end-to-end network solutions that enable customers to build their own unified information infrastructure or connected to other networks. Cisco provides professional technical support and specialized training services such as network maintenance, optimization, and other technical support and specialized training services for network maintenance, optimization, etc. The Cisco Catalyst 3550 Series Intelligent Ethernet switches are a new type, stacked, multi-layer enterprise switch series that provides high levels of availability, scalability, security, and control capabilities to improve network operation efficiency. Because there are a variety of fast Ethernet and Gigabit Ethernet configurations, the Catalyst 3550 series can be used as a powerful access layer switch for the wiring chamber of medium-sized enterprises; can also be used as a backbone network switch for medium network . Customers can deploy intelligent services throughout the network, such as advanced service quality (QoS), speed limit, Cisco security access control list, multicast management, and high-performance IP route maintained traditional LAN exchange. Simple. The Catalyst 3550 series is embedded in the Cisco Cluster Management Suite (CMS) software that allows users to simultaneously configure and diagnose multiple Catalyst desktop switches and troubleshooting multiple Catalyst desktop switches using a standard web browser. The Cisco CMS software provides a new configuration wizard that greatly simplifies the deployment of integrated applications and network-level services. Catalyst 3550-48 Switch 48 10/100 ports and two GBIC-based Gigabit Ethernet interfaces; two built-in Gigabit Ethernet ports can support multiple GBIC transceivers, including Cisco GigaStack? GBIC, 1000Baset, 1000Basesx, 1000BASELX / LH and 1000Basezx GBIC. Based on dual GBIC Ethernet implementation can provide customers with high degree of deployment flexibility to enable customers to deploy a stack and uplink configuration, which can then be transplanted in the future. High levels of stack elastic can also be implemented in the following technologies: two redundant GagaStackTMGBIC feed lines, UplinkFast and Crossstack UplinkFast technology for high-speed uplink and stack interconnection failures, Per VLAN generated tree (PVST ) for uplink load balancing. The Catalyst 3550-12G switch has 24Gbps exchange structure and maximum 12Gbps transfer speed, which provides dynamic IP routing at all ports of 17MPPS. Distributed Cisco rapid forwarding structures meet different sizes and performance upgrades. This structure supports extremely high speed queries and ensures the need for stability and scalability in the future. In addition to 17MPPS forwarding speed, Catalyst 3550-12G also supports the multicast required for general networks. Hardware Multicast Routing Protocol (PIM) and Internet Group Management Protocol (IGMP) listening makes Catalyst 3550-12g to be ideal in intensive multicast environments. When used as a stacked wiring chamber seter switch, Catalyst 3550-12g provides many advantages to improve network performance. The routing uplink from the top level of the stack is protected by using fast failover protection, and simplifies the spanning tree (STP) algorithm through the STP instance in the terminal seter switch, and improves the availability of the network.
If an uplink has failed, you can switch the task to other uplinks to other uplinks through an extensible routing protocol, such as OSPF, OSPF, or Enhanced Internal Gateway Routing Protocol (EIGRP). Do not need to use standard STP aggregation. After the link fails, the packet utilizes the redirection of the routing protocol, which can obtain a fast network aggregation speed than the use of the Layer 2 generated tree enhancement. Additionally, the routing uplink can provide better bandwidth utilization by balancing the load on the link using equivalent cost routing (ECR), which also implements a dynamic load balance of network segments that have become a bottleneck. At the same time, the routing uplink can optimize the utilization of uplink from the wiring chamber by eliminating unnecessary broadcast data flowing to the network. Catalyst 3550-12G also provides a considerable bandwidth savings to be used as a stacked wiring chamber seter switch in a multicast environment. Using the routing uplink uplink, the multi-data stream of transmitting the same multicast between the uplink content server and the wiring chamber seter switch can be avoided. For example, if three users are assigned to three independent virtual LAN (VLANs), and they want to observe the multicast ABC, then three ABC multicast data flows from the uplink router to the wiring chamber seter switch - - Assume that the collapse switch cannot route uplink. Use Catalyst 3550-12g, rich in multicast networks can be easily available. 4.3.2 Secondary Switch Ruijie Network (Procedure Network) was established in January 2000 and has a registered capital of 100 million yuan. In the past four years, Ruijie Network adheres to the core business philosophy of "keen to grasp the application trend, fast satisfying customer needs", in a fierce market environment, achieving super conventional, leap-forward development, today's Ruijie Network has become a 1600 Many high-quality employees have established a comprehensive leading position in the field of education, finance, telecommunications, government, large enterprises, and SMEs, and SMEs, successfully ranked among domestic mainstreams. One of the three major network equipment manufacturers. The maximum feature of the S2024 series stack Gigabit switch is its unique stacking module and power supply design. Its stacking module uses a split design, and the user can add a stacking module and the slave switch, which does not cause a waste of the expansion slot; support the heat stack function, the main source is independent, the upper and lower power supply is separated; Next, the user can add or reduce the number of slaves at any time according to their own needs, and there is no impact on the host. In addition, the stacked S2024 series Gigabit switch can achieve a single IP management, which can manage the physically separate switches as a single switch, and do not require management and monitoring each switch. Moreover, S2024 supports IGMP, port monitoring, SNMP, web, Telnet, and external RS232 management, which can solve users in large amounts of data maintenance, network management, and high-speed networking. The S2024 series stack Gigabit switch includes a main switch STAR-S2024M and a slave STAR-S2024. The S2024 series has a network flexible and powerful feature. It fully meets the number of port number requirements by stacking, and can also be designed and power management design and power management design by unique split stacking module, and enhanced network expansion. Flexibility.
Chapter 5 Multimedia Classroom Construction In order to make teachers to use multimedia teaching methods to teach, carry out rich classroom teaching activities, Guangzhou Third Middle School New Teaching Building set 25 regular classroom TV platform projects and 6 multi-function rooms and 1 tone The beautiful special classroom, the configuration is simple and medium control, digital display stations, projection screens, teaching platforms and other equipment, and the construction of classroom technology platforms. The composition of the e-sports platform is to connect the liquid crystal projector, digital display table, desktop computer, and electric screen by video cable, VGA line, and power supply to a system. By simple middle control, the audio signal output from the desktop computer and related devices is connected to the active speaker, video signal, and the digital signal of the computer via the video line, the VGA line, respectively, on the projector. 5.1 Overview The 21st century, information technology is spreading at an amazing speed. Rich, wonderful, and variable computer culture, this makes traditional education in the modern school being strongly impacted. The traditional education system staying in the "chalk, smhets and paper" inherent models have been greatly limited by time and space, and it is no longer adapted to cultivate new technologies and new knowledge-intensive talents. Moreover, there is an urgent need to solve problems with the lack of personal segmentation, potential mining and ability training of educational objects. At present, computer multimedia is infiltrating the corners of social life, which will greatly improve people's work efficiency and change people's life. High-performance campus multimedia systems have now become a must-have hardware facility that measures school capabilities and levels. The multimedia projection system includes all the electronic teaching, computer-aided teaching and demo, is the most popular, most convenient, and most ideal teaching demonstration system. It will record advanced audio-visual equipment such as a camera, a VCD machine, a multimedia computer, a multimedia video real booth, a multimedia projector, and other remote control equipment (such as electric screen, electric curtains, lighting, etc.) to constitute a modern audiovisual teaching environment. The system is controlled by the teacher according to the centralized control of the coaching content, the switching operation between the control and audio and video of various equipment, so that the content of the teaching is vivid, visualized, and avatars, overcoming the form of indilling in the past, and students The teaching method of sound is easier to understand and accept. The system has given the role of modern teaching equipment to improve the quality of teaching, alleviating the labor intensity of class teachers, and greatly improves the utilization of various equipment. This system applies to various schools for multimedia teaching, case teaching, special speeches, report meetings, international academic exchange meetings, demo and entertainment. If you connect with the campus computer and the Internet, you can share the rich information resources on the campus network and the internet. 5.2 The main equipment of the system and the functional equipment included in the multimedia projection system are: projectors, video display stations, multimedia computers, projection screens, controllers, etc. Each device will be described below. 5.2.1 Projector projector is one of the most important equipment in this system, so the quality of the projector is directly related to the overall performance of the system. The projector has developed to three phases of CRT (Cathode Ray Tube) cathode ray tube, LCD (Liquid Crystal Display) LCD and DLP (Digital Light Processor) Digital Light Processor. In today's education system, we recommend the use of LCD technology projectors because it has the advantages of high sharpness, high contrast, full color. 5.2.1.1 For ordinary classrooms, we recommend Epson EMP-830 launched by Epson for Epson. The EPSON EMP-830 projector adopts LCD projection technology, its real resolution is XGA (1024 × 768). EMP-830 uses EPSON new digital active reset technology and image enhancement, ensuring that the lines, edges, and contours in the projection screen are clearer. This product also provides six different color modes, and teachers can choose different modes for different modes of demo content to get the best results. In addition, this product also has a vertical / horizontal two-way trapezoidal correction function, which can be easily adjusted to standard ratios. EMP-830 nominalizes to 3000 Gunship, is a highlighted product suitable for medium and large classroom applications.
The EPSON EMP-830 is equipped with a very complete interface. In addition to the D-SUB interface input by the analog RGB signal, it also provides a DVI digital input interface that can be connected to a computer using different video interfaces. The EPSON EMP-830 is also equipped with Video, S-Video, Audio and other videos, audio input interfaces, allowing it to be used with some video playback taught equipment. The EPSON EMP-830 has a personal indication. In classroom teaching, teachers can use the remote control to focus on the key content in the screening screen, which is conducive to the mastery of students. In addition, the projector also provides paintings in painting, video signals are inserted into the PC signal to play simultaneously, and the presentation method can make the content more vivid. The EPSON EMP-830 can clearly exhibit color step changes in different brightness, and the expression of color level is very rich, and the text can be clearly projected, which can be used for teaching demonstrations to get vivid demographic effects. We believe that the EPSON EMP-830 has the characteristics of clear, bright, functional design, and complete interfaces, suitable for demo applications for medium and large classrooms. The specific product performance indicators of EMP-830 are as follows: EMP-830 Product Performance Index Optical Specifications Projection Technology LCD Technology Types and Specifications Obtaining Brightness (Limin) 3000 Standard Resolution (DPI) 1024 × 768 Maximum Resolution (DPI) 1600 × 1200 contrast 600: 1 Projection specification projection lens f = 1.75 - 2.42, f = 24 - 38.2 mm nominal light brightness uniform value 0.90 projection picture size (m) 30-300 inch [0.86 - 14.73 m] screen width ratio 0.16875 Color 1677 million projection mode is instead / rear projection / lifting adjustment Digital trapezoidal correction: -30 degrees to 30 effective scan frequency segment level: 15 kHz - 107 kHz, vertical: 50 Hz - 120 Hz input terminal DVI, RCA, D-SUB Output Terminal D-SUB Electrical Specification Power 200--240V AC, 50 / 60Hz Power (W) 230 Noise (DB) 38 Security and Compatibility Computer Compatibility PC and Its Compatible Machine Power MAC Video Signal Method NTSC / NTSC 4.43 / PAL / PAL-60 / PAL-M / PAL-N / SecAM Menu Language Support Chinese Security Certified CE / UL / TUV / GS / FCCA Accessories Bulb 200W UHE Bulb Life (Hours) 2500 Remote Control (Control Wireless remote control (compatible with laser labeled and computer mouse function) speaker 2 × 1W speaker PC card slot no standard accessories power cord (3M), computer cable (1.8M, mini D-Sub 15PIN (public) - MINI D-SUB 15PIN (public)), video / audio cable (RCA × 3 (white, red, yellow)), mouse cable, remote control, two batteries, user manuals Other features No appearance parameter weight (kg) 4.2 Length (mm) 280 Width (mm) 365 Height (mm) 114 Environmental Parameter Working Temperature (° C) 5-35 Working Wetness 20-80% Storage Temperature (° C) - 80 Storage Wetness 10-90% 5.2.1.2 Multimedia Classroom, IT room and special function room require higher brightness projectors for multimedia classrooms, IT rooms and special rooms, here we recommend EPSON EMP-7800. Although the demand for users in education is the projector product for general education applications. However, when some large-scale colleges have built large multimedia classrooms, only projector products that have reached 3,000 lumens, which can meet the requirements, and many manufacturers Just withdraw from the competition because of the shortcomings of the product line. Epson EMP-7800/7850 is designed for the use of the use of multifunctional classrooms in colleges and universities. The standard resolution is XGA (1024 × 768) format, which uses Epson's latest 1 inch wide-aura LCD technology, which makes them can produce very Good color saturation and color accuracy, high brightness up to 3,500 Gunsib.
The Epson EMP-7800/7850 uses a cost-effective 250W UHE cold light source that project bright and clear images can be projected in a large multi-function class; 700: 1 high contrast can projection, vivid pictures. In addition, the model provides multi-lens options, which improves installation flexibility. That is to say, according to the environment, the user can select two output brightness, 3500 lumens or 2500 lumens. This is a very useful option, which can reduce fan noise and extend the life of the light bulb, which can be described as two. For the characteristics of the general high-end projector product, the setting of the EMP-7800/7850 is simplified, automatic ladder correction function, does not need any settings, do not touch any buttons, just put the projector on the desktop and Turn on the projector will get a flat screen. Not only that, the invention of Epson's fast quartz adjustment function can carry out /- 40 degrees of vertical ladder correction and /- 20 degrees horizontal ladder correction angle, providing a larger freedom for the user to choose the projector. . Even if you are projected on your desktop, you can get a flat screen. These two products also have a Wall Shot setting system. By setting, the projector can projet without the screen without a screen. The WALL Shot system will automatically adjust the output to automatically adjust the output according to the color of the projected plane and the light of the room. The Epson EMP-7800 has a quiet projection feature, and the fan noise is only 33dB, and you can match your viewing environment by selecting environmental mode to further reduce noise. The input and output interface is also very rich. In addition to the common interfaces of the general projector, a professional BNC interface and DVI interface are provided. The Epson EMP-7800 is far less than the case, and they own management functions, through the local area network card connection and the EMP Monitor software included with this unit, synchronous monitoring and control of multiple EMP-7800 and EMP-7850 can be implemented. . Since both network functions make managers who demonstrate people and local area networks can remotely manage the projector, in order to be safe, they should enter the password before projection. This setting reduces theft and unauthorized use of the projector. The possibility. It also comes with an automatic E-mail warning system to remind the user of the current temperature of the projector, the operation of the fan and the lamp replacement time. We believe that: EMP-7800 multi-function projectors are high-end, have good features and practical products, which will add more colors to your reporting hall and auditorium.
EMP-7800 Technical Specifications Projection Technology: LCD Nominal Brightness (Liming): 3500 Standard Resolution (DPI): 1024 × 768 Contrast: 700: 1 Procedure: Positive Shoot / Rear Turning / Lagging Bulb: 250W UHE Weight ( KG): 5.8 Product Specifications: Basic Specifications Nominal Brightness (Liming) 3500 Standard Resolution (DPI) 1024 × 768 Electrical Specifications Power Supply 100-120V / 200-240V, 50 / 60Hz Effective Scan Frequency Section Level: 15-107kHz, Vertical : 50-120Hz input terminal D-SUB15 PIN × 1 and 5-BNC color difference, digital video interface DVI TYPE D × 1, stereo × 1, RCA × 2 output terminal D-SUB15 PIN × 1, stereo × 1 lamp 250W UHE bulb Life (hour) 2000 remote control wireless remote control (compatible with laser standard and computer mouse function) speaker 5W speaker power consumption (W) 350 noise (DB) 36 safe authentication CE / UL / TUV / GS / FCCA appearance feature length ( MM) 419 Width (mm) 325 Height (mm) 138 Weight (kg) 5.8 Accessories Standard Parts Power Cord 3M, computer cable 1.8M, audio cable (3.5mini-pin stereo cable 1.8M, RCA audio cable 1.8m), video Cable (RCA Composite Other Characterless Non-optical Specifications Projection Technology LCD Nominal Brightness (Land) 3500 Standard Resolution (DPI) 1024 × 768 Maximum Resolution (DPI) 1600 × 1200 Contrast 400: 1 Projection Lens F = 1.92-2.1, F = 31-36mm ZOOM Compared to 1.16 Nominal Light Brightness Mental value 90% Procedure Dimensions (m) 30-300 inch (projection distance 1.0-11.7 m) Projection distance (meter) 0.87 12.4 Screen Width ratio 16: 9 Color ( 10,000) 16700000 projection / rear projection / lift adjustment function Digital trapezoidal correction: -15 degrees to 15 degree compatibility computer compatibility PC and its compatible machine species video signal mode Mini D-SUB 15 PIN, S- PIN, RCA (Yellow) Menu Language Support Chinese
5.2.2 Video Exhibition Video Exhibition Table is also called a physical booth, and its appearance has gradually replaced most of the traditional film projector / slide machine. The video display station can not only put the content on the film, but also in varying various kinds, or even active images on the screen. Its application range has also greatly exceeded the traditional slide. The video booth with projector in teaching can be called a perfect combination. Documents, physical, and experimental activities on the booth, can be projected through large screens, allowing viewers to be visually enjoyed. There are a variety of designs: "Bilateral Lights", "single-side lamp table", booth with liquid crystal monitor (small LCD monitor on video booths makes users easy to check the imported image, do not need to be displayed during the display Also prepare the monitor, do not look at the screen placement being treated), can be connected to the computer for data exchange (computer through video capture card connection booth, through related program software, you can enter the video signal output by the video booth to enter the computer. Processing), etc. Video booths We recommend using Zhonghui VPS110 (VGA). For details, please see the equipment data accessories. 5.2.3 Server and Multimedia Computer 5.2.3.1 Classroom Multimedia Computer This program recommends using Fang Zhengwen's E630. New Fang Zhengwen Xiang series is committed to data security design, its unique dual hard disk conversion function and system backup function makes data security, completely meets the needs of network applications and fashion office markets in large and medium-sized industries, super safety protection √ Double hard drive conversion: In order to meet the special needs of departmental users in data security, the double hard disk conversion control system is particularly reserved, and the user can install two hard drives as needed, separately for accessing the Internet and intranet, only to turn the conversion button and restart the computer, ie Easily complete the switching of the storage device, effectively prevent commercial confidence from leaking through Internet through internet. √ System Backup: Founder Wenxiang E630 has a powerful function of system backup, and users can back up the system as needed. Once the system has problems, it is easy to restore the designated system to the previous backup state, effectively avoid the loss of important files, and exemption The troubles of the system. √ After I / O Safety Protection: Wenxiang E630 is designed for users with special needs for data security, and can lock the rear of many I / O interfaces, USB interface sequences in the protective cover Inside, it is effective to prevent others from connecting the storage equipment through the I / O interface to steal business information, and also make various coils are derived, and the office machine is more beautiful and tidy. The humanized design √ 开 贴 开 / 重 顶 顶: 禁 成 成 动 成 成 成 面 成.. 成 面 面 面 面 面 面... 面 面 面 面 面 面 面 面 面 面 面. 面 面... √ The consideration design of the front interface: Founder Wenxiang E630 not only promotes the position of the front interface to the middle of the chassis, but uses 30 degrees of elevation angle design to effectively avoid the visual blind spot encountered by the user in the plug storage device, and put the front USB The interface is designed to avoid the traditional USB interface because it is difficult to connect resources due to vertical design, and to maximize the efficiency of the computer. √ Move easily and convenient: Founder Wenxiang E630 is particularly designed on the host chassis, which is convenient for users to carry. Optimized design stably reliable √ The ventilation of the front panel of the chassis is provided with dust cover design. Effective blocking dust from the vents from the vents, and the dust-proof net cover can also remove cleaning, to ensure that the host is unveralistic in harsh environments, long Time operation, steady, Taishan. √ FAW drive external: Traditional floppy-driven structure is internal in the cabinet, and this floppy drive design has a long-term use of the control key and the floppy drive contact failure, causing the floppy disk that cannot be popped up. Founder Wenxiang E630 broke through the floppy drive directly on the inside of the panel, except for the control button in the traditional floppy-driven structure to ensure long-term use is effective.
√ Founder Wenxiang E630 uses a symmetrical design, simple appearance, generous, and reflects the efficient characteristics of modern commercial driving. The following is the detailed parameter indicator of Fang Zhengwen Xiang E630 special model configuration processor Intel P4 processor 2.6GHz standard memory capacity 128M DDR / 256M DDR secondary cache 128K hard disk capacity 80GB hard disk speed / interface type 7200rpm, IDE interface display chip GF4 MX440 Conservation Capacity 64M DDR Display Type / Size (inch) 15 "CRT CD-ROM DVD-ROM Flip Drive 1.44M 64 Bit / 32 Bit PCI Free Expansion Slot 3 Expansion Bar (5.25 '/ 3.5') 2/3 Power Maximum Power 200W Power Paper / Serial Port 1/2 Front Interface 3 USB or 4 USB / AUDIO USB Port 6 Other I / O Interface PS / 2 Mouse, Keyboard / Audio / NIC / VGA NIC Motherboard Integration 10 / 100M Adaptive Net Card Keyboard Boot Support chassis lock pre-installed operating system Founded intelligent security system technical support daily 14 hours / weekly 7 days machine size (mm) (length × width × height) 393 x 190 x 4005.2.2 IT room and multimedia computer room computer Ø Server server We recommend using HP ML-150 below the detailed configuration of this machine: processor standard (1) Intel® XeonTM processor 2.8GHz (up to 2) memory 512MB PC2100 DDR SDRAM, running frequency 266 MHz (standard), can be extended to 12GB, high-grade ECC function maximum memory 12GB cache 512-KB integrated secondary cache chip group Intel® E7501 chipset hard disk 2 block 73GB ULTRA320 SCSI 10,000 rpm 1 inch hot plug driver optical drive 48x speed IDE (ATAPI) CD-ROM CD-ROM Network Controller Intel® 82545EM PCI-X Gigabit NIC (Embedded) 10/100/1000 WOL (LAN Waken) Storage Controller Integrated Dual Channel Wide Ultra320 SCSI Controller Internal Storage Maximum 730GB (with multiple optional hard drives) External storage 1.44 MB floppy drive, 48 times speed IDE (ATAPI) CD-ROM optical drive I / O interface 1 parallel port, 1 serial port, 1 positioning device (mouse) interface, 1 Video port, 1 keyboard interface, 1 RJ-45 network interface, 2 USB port industrial standards conform to the ACPI V1.0B standard and PCI 2.2 standard, support PXE, WOL (LAN wake-up), compliant with PCI-X 1.0 standard And Microsoft® LOGOTM certification Administrative Tools Online ROM Refresh Utility, BIOS Serial Console, ML150 System Display Power 450 Watt, PFC (Power Factor Calibration) Security Features Bright Password, Set Password, Disk Start Control Server Power Cord Standard 1 VOLEX Power Cord Extension Slot I / O (total 5 - 2 64-bit 133 / 100MHz PCI-X, 2 64-bit 66MHz PCI-X, 1 32-bit 33MHz PCI) system fan standard system fan and CPU cooling fan Characterization card integrated ATI Rage XL Video Controller, with 8MB SDRAM Save Shape Vertical (5U) Floppy Drive 1.44 MB Specifications (High X Width x Deep) 44.5 x 21.5 x 62.2 cm Weight 23 kg (aggressive)
Ø Teacher teacher machine us recommended Fang Zhengwenxiang E630 routine special Tenxiang E630, please see 5.2.3.1 Classroom multimedia computer. The detailed configuration is as follows: Indicator Configuration Processor Intel P4 Processor 2.6GHz Standard Memory Capacity 128M DDR / 256M DDR Level 2 Cache 128K Hard Disk Capacity 40GB Hard Drive Speed / Interface Type 57200RPM, IDE Interface ATA100 Display Chip GF4 MX440 Capacity 64M DDR Display Type / Size (inch) 15 "LCD CD-ROM DVD-ROM floppy drive 1.44M 64-bit / 32-bit PCI idle expansion slot 3 expansion warehouse (5.25 '/ 3.5') 2/3 power supply max power 200W power parallel port / serial port 1 / 2 Front interface 3 USB or 4 USB / AUDIO USB port 6 other I / O interface PS / 2 mouse, keyboard / Audio / network card / VGA network card motherboard integration 10 / 100M adaptive network card keyboard boot support chassis lock pre-installed Operating system Founded Intelligent Security System Technical Support 14 hours per day / 7 days per week (MM) (length × width × height) 393 x 190 x 400
Ø Student engine student machine us recommended Founder Wenxiang E630 Special Wenxiang series, please see 5.2.3.1 Classroom multimedia computer. Indicator Configuration Processor Intel Celero Celerond 335 (CL 2.8G Prescott) Standard Memory Capacity 128M DDR / 256M DDR Level 2 Cache 128K Hard Disk Capacity 40GB Hard Drive Speed / Interface Type 7200RPM, IDE Interface Display Chip Motherboard Integration Capacity 8-64M DDR Display Type / Size (inch) 17 "High Pure CRT CD-ROM CD-ROM Flip Drive 1.44M 64 Bit / 32 Bit PCI Free Extension Slot 3 Expansion Bar (5.25 '/ 3.5') 2/3 Power Maximum Power 200W Power Cards / Serial port 1/2 front interface 3 USB or 4 USB / AUDIO USB port 6 other I / O interface PS / 2 mouse, keyboard / Audio / NIC / VGA network card motherboard integrated 10 / 100M adaptive network card keyboard boot support chassis Lock pre-installed operating system Founded intelligent security system technical support 14 hours per day / week 7 days machine size (mm) (length × width × height) 393 x 190 x 400
5.2.4 Other equipment Other equipment as follows: Recording Card JVC-118 CD-Recording Tape Synchronous Recording Start, Double Speed (General / High Speed) Recording, Automatic Back Band 8 Amplifier Boutum MK-B28 Rated Power 120W, peak ≥ 240W, Performance is stable, higher. Taiwan 33 speaker BOUTUM PS-8 rated power 200W, sensitivity 101 dB, tone natural balance, clear sound quality and realistic. Taiwan 66 Controls Zhonghui GT1880 Eight Road Sound Video Input, Second Road Output, all the way as a forefront, computer interface can be monitored simultaneously, all the way as a play output, can output to large screen projection, color TV, etc., freely fixed mode signal Switch. The two-way microphone is adjustable, and the microphone is automatically reduced when the microphone has signal input. Unique timing function. 33 table microphone SONY-SM810 dynamic sound microphone, good sound quality, is not easy to have a self-excitement with the sound equipment in a large environment. 8 wireless microphone TM2001 1 handheld, a leader, receive stable, not easy to interfere, the sound quality is good. An 8 detailed configuration, please see the product detailed list.
Chapter 6 System Installation, Debugging, and Acceptance
6.1 Installation of Integrated Wiring System 6.1.1 Installation of Wiring Systems The new teaching building in the three-way building is new construction, and there is a ready-made weak electric well in the building. This program will choose the most suitable three-in-law in many cable methods. The cable method and does not affect the design of the decoration appearance as much as possible. 1) The installation of the information socket For the teaching environment, there is a computer room containing more information points, there is also a general classroom of less information points. We use different methods in both forms: 1, in the classroom, information sockets are required to be installed on the nearest wall from the podium. 2. For the computer room, it is necessary to use a partition plate to separate the large opening into several small works, so the information socket is selected, installed, and the installation position is inevitably affected by the separator. This is necessary to use the appropriate installation method according to the specific environment of the user. For the embedded information socket and the side power outlet, it should be kept 20 cm distance, the information socket and the low edge of the power socket 30cm from the floor level surface, as shown below. 2) Horizontal section cable method The horizontal zone system completes the function of the connection between the wiring to the work area information exit line. There are usually a wall of the corridor to lay a PVC slot, a hanging ceiling trough, and a three kinds of traces of the floor under the floor. According to the actual situation and user requirements, this program is recommended to use the corridor to lay the line of the PVC slot. The wire slot is directed to each room with information points along the corridor. After entering the room, the wire slot / iron tube is used, along the sky, and the walls, and the line is introduced into the bottom box of the wall. One end of the line is connected to the outdoor tank, and one end is attached (for mounting panel). In this way, the cable will lead the ceiling of the tank from the management line slot, and pass through the room of the corridor to each room with information points, then pass the line through the line slot in the room to lead the line into the bottom box on the wall. 3) The cable method of the vertical cable can usually have two options: cable holes and cable well methods, can be reasonably selected according to the actual situation of buildings. There are ready-made cable wells in the New Teaching Building, we will walk in the cable well. Considering the weight of the cable itself, the cable fixture will be installed in the cable well. Attention should be paid in parallel when installing, and winding or kneading should not occur. This wiring system has the characteristics of economics, advanced, and practicality; supports 100Mbps or more transmission rates; supports multiple network structures and network protocols; support multimedia image transfer, and combines the combination of flexible configuration , Can expand and upgrade through system to support more application needs. 4) Outdoor fiber wiring method three new teaching building fiber wiring, should take artificial placement, up and down the road and each turn, should have a special command to pull, keep the cable is relaxed, avoiding the small circle and dead bend . After the cable disk is reserved in the fiber switch, it is fixed to the cable line chamber or the optical chamber. There are three ways between the cable wiring between the building group: 1. The underground pipeline is laid, that is, the optical cable 2 is laid in the underground pipe. Mask it directly. Overhead, that is, in the air from the electric wire to the electric wire, it is recommended to directly embed the laid 2 cable reserved long laying mode Direct buried pipeline air natural bend increase length (m / km) 7 5 7-10 people Increases Length (M / Hole) 1 1 1 1 Reserved Length (M) 0.2 0.2 0.2 Connector Each side of the reserved length (M) 10-15 10-15 10-15 Each side is reserved for each side ( M) 15-20 15-20 15-20
2 Technical requirements for the construction of the fiber optic cable A) During the fiber optic cable, the cable minimum turn radius is 20 cm, and the cable is prevented from being knotted, especially the killing. b) During the fiber laying process, the human traction or mechanical traction radial traction is less than 100 kg, and the force is thrown on the outer packaging layer or wire. When the distance is longer, it should be pulled more simultaneously. c) During the fiber optic cable, avoid the operation of the optical cable layer to prevent the vehicle from being laminated laterally. d) After the optical cable is laid to the designated wiring cabinet, you should leave a balance of 10-15m to facilitate continuous work. e) When the cable is laid in the cable trough, the cable is parallel to the existing cable, and must not twist with other cables. f) When the cable enters the wiring, pay attention to whether the edges of the inlet or exit of the pipe are smooth, and the can be protected. g) The cable is entered between the cable shaft of the building, and when it is laid in the shaft, in order to reduce the load on the cable, the cable should be buckled with cable clamps or cable troughs on the bridge or vertical line slot on a certain interval. on. The steps of the cable belt fixing the cable are as follows: 1. With the selected belt, start with the top of the cable, buckle the trunk cable on the vertical line. 2. From the top, the tape is mounted on the specified interval (agreed 2M) until the trunk cable is securely buckled. 3. In the optical cable inserted into the sleeve to the leaves, the optical cable is fixed, and the aperture is filled with cement, such as the large pore, the optical cable is bundled. h) The end of the optical cable is carried out in the fiber optic junction box, and the main optical cable is entered by the inline hole of the optical cable junction box. It is necessary to completely fix the cable completely, and it cannot be loose. The length of the exhausting core is limited to 1 m. After the fusion is completed, the core is arranged in the winding disk of the fiber optic cartridge in order, and in the coil, it must pay attention to the curved radius of the core. After the core is ranked, you should mark the label on the tail by color standard and serial number. In the construction engineering, we also follow the CECS 72:97 Standards to maintain a certain spacing from the wiring system interference source, as shown in the following table. Interfering source and integrated wiring proximity condition minimum spacing (cm) 380V or lower power cable <2kva and cable parallel laying 13 One side in the ground slot in the ground slot in the grounded wire slot 1380V or less power cable 2 ~ 5kVA and cable The line parallel laying 30 There is one side in the grounded wire slot in the grounded wire slot in the grounded wire slot 8380V or less power cable> 5kva and cable parallel laying 60 There is one side in the grounded wire slot in the ground in the ground slot in the ground slot 15 fluorescent lamps, argon lamps, electronic launters or intersective equipment and cables close to 15-30 distribution boxes and wiring equipment close to> = 100 elevators, transformer as possible away from> = 2005) Wire slots Construction 1, with metal The wire slot laying cable. 2, the size of the line slot is designed according to the drawings to ensure the cross-sectional area of the inner lines, or 30% -60% of the line pipe cross-sectional area. 3, the wire slot connection should have no burr. 4, the cable tongue in the wire slot should be substantially consistent. 5, the cable in the line slot should not have a cable connector. 6. After the release is completed, it should cover the card slot cover. 7, the amount of fill in the line in the wire groove is less than 2/3. The above-described cable method is preferred for the actual environment for the user. It has good mechanical protection and shielding to ensure that the communication of the twisted pair is not interfered by external interference. At the same time, in order to ensure the safety of the line, the line slot should also have a good grounding end, we will also connect the metal wire slot, iron tube, wiring box and cabinet, and then ground protection. Specific cable construction methods require the actual situation in the field. 6.1.2 Test of the wiring system
6.2 Installation of Network Equipment 6.2.1 Installation of Switch (1) Preparing Installation - Confirm that there is no omissions in the package. - Read the installation guide. (2) Install the switch to the rack - remove the screws on the side of the switch to install it on the rack. - Secure the mounting plate to the rack. - Install the switch to the rack. - Install an optional wire ring. (3) Switch Power and Approval The terminal is connected to the switch. - Connect the power cord. (4) Connecting Network Terminal Devices (5) Connecting Exchange Port This project is all RJ45 interfaces, so you only need to insert a 5-class UTP line with the RJ45 interface into the switch port. (6) Connecting the Gigabit port Gigabit port Adopting the GBIC connection, so the following steps are used to join: - Remove the GBIC - remove the baffle in front of the GBIC, insert GBIC. - Remove the plastic sheath in front of GBIC, reserve spare. - Insert the SC interface of the fiber into the GBIC interface. (7) Basic configuration - Get the configuration information of the switch, such as the IP address, subnet mask, and other parameters. - Enter the SETUP status and complete the basic configuration of the switch according to the system prompt. (8) Advanced configuration - VLAN division. --Trunk (including Fast Ethernet, Gigabit Ethernet) settings can increase the bandwidth between the devices, or provide redundant links. --Broadcast Suppression settings to suppress broadcast traffic on some ports. - Set ACL to ensure that some ports can only connect some specific workstations to increase system security. - You can set the CGMP to participate in multicast in the switch. - Set SNMP to facilitate the management of the network. 6.2.2 Installation of Server 6.2.2.1 Application Server Hardware Installation Procedure The first step is once again confirmed that the environment provided by the user is normal, including voltage, temperature, humidity, and ground wire, etc. The second step is required to open the main chassis according to the instructions. And confirm that everything is incorrect. 6.2.2.2 Installation of the operating system: Select the Operation System CD into the optical drive when the optical disk boot system is graphically, and press 1 to start from the CD0 when the chart is shown. Step 2: Installation System (1) Press the prompt installation - After the installation system Automatic Reboot - Select Configure TCPIP - Root Password - Enter System - Installation Option #SIMTTY Install * Install MAN Option * Install Chinese Selection Parts * Installing the Nescape Option (2) Installing the System Patch Established / PTF Directory - Packet Packets to this Directory - # itty install installation * Creation / PTF directory: A machine: # itty - System Storage Manager --- Add A Standard Journald File System - Select Volume Group Rootvg - Size of File System (in 512-byte Blocks): 1500000 (750MB) - Mount Point: / PTF - Mount AutomattCally At System RESTART?: YESB: Like A machine.
The third step increase exchange region # smitty - system storage management - logical volume manager - paging space - change / show characteristics of a paging spacepaging space name: hd6volume group name: rootvgphysical volume name: hdisk0number of additional logical partitions: To increase the size =? X16 MB, 166 is the PP size in the PP size in LSVG rootvg, add TTY devices in the two machines: # smit - device - TY - Select RS232, Port = 7 Detection: End of both sides # stty
6.2.3 System, Network Parameter Adjustment and Performance Optimization When a new system is running for some time, it is possible to discover the overall performance because of the causes of the system, and there will be the requirements of the overall operation performance of the system, which is also very common. This kind of work is more complicated, and the surface involves is relatively wide. It is necessary to have a professional team to complete this task, our usual practice is: (1), and discuss problems, methods, time, frequency, etc. Question and position in as early as possible. (2) Further, further deep analysis, establish a variety of testing environments, and strive to find programs for improving system network performance. (3) Determine the improvement of the system and network performance, if you need to coordinate the parties, and work together with the original manufacturer to improve the overall performance. 6.3 Installation of Multimedia Equipment 6.3.1 Installation and installation location of PC: Guangzhou No. 3 Middle School New Teaching Building and other implementation personnel: the company's technical staff, and invites staff of the project unit to participate in the system installation at the beginning of the system installation, Test, diagnostics and solve problems and other work. The installation of the PC will be performed in accordance with the following steps: 1, preparation before installation: Device, spare parts, connecting lines, and manual are completely required; check if the installation site meets the requirements; prepare network connections; prepare power Connect to ensure the safety of the equipment and personal. 2. Place your computer on the horizontal desktop. 3, insert the keyboard, mouse, display cable, and power cord, turn on the power switch. 4, check the system self-test information, pay attention to whether the CPU frequency and quantity, the amount of memory, the hard disk capacity, etc. are correct. 5. Configuration of system software and hardware, including system software and application installation, network connection configuration, installation and configuration of peripherals, and more. 6. After successful installation, the basic test of personal computers is performed. 7. After the system is installed, the operating system and input method are installed according to the user's requirements to assist the user to install the application system developed by the user, and provide venues for user training. Users no longer pay any fees. The basic test of a personal computer will include: (1) All ordering equipment has arrived and intact. (2) Check the equipment installation and ensure that all devices meet the installation specifications. (3) Whether the operating system is properly installed and activated. (4) Whether the application software is properly installed and activated, whether the application system can operate normally. (5) Whether various peripherals are properly installed and can be used normally. (6) Whether the correct network configuration is performed, the network interconnection of the device can be carried out smoothly. 6.3.2 Installation of Multimedia Electronics Equipment Installation Projector Ceiling, Video Booth, etc. Place in a special podium, connect various devices to simple central control. The installation of multimedia teachings will be connected below: Multimedia classroom layout and podium layout are as follows:
6.4 Test operation and acceptance of delivery and equipment 6.4.1 Product Test Product Test Content: L Wiring System Test L Network Equipment Test L Multimedia Equipment Test Test Test Method: 6.4.1.1 Testing of Wiring Systems A. Test of Wiring System The transmission performance of a standard a wiring system is determined by a variety of factors: cable characteristics, connecting hardware, jumper, overall loop connections, and installation quality. For the final acceptance test standard for the three-China New Teaching Building, we are all in accordance with international standards such as EIA / TIA 568A, ISO11801 and my country Communication Industry Standards Part 1: Total Planning "(YD / T926.1- 1997) Test. The test standards for the wiring system include: 1) Connection diagram connection map test is typically the most basic test of a wiring, and the connection diagram test includes: connectivity, short circuit, serial, reverse, wrap, other misuse. 2) Cable length "Basic Link" cable length <= 94M (including test jumper) "channel loop" (Channel loop "cable length <= 100m (including device jumper and fast jumper) 3) Measurement of the loss of "basic loop" / "channel loop" signal loss. The attenuation of the worst line should be smaller than the maximum attenuation value allowed by the "Basic Back" / "Channel loop". 4) NEXT proximal crowd attenuation All systems that have a super five wiring must pass by NEXT attenuation, and NEXT tests must be performed from two directions, that is, two-way tests. 5) Characteristic impedance This engineering symmetric cable wiring link adopts 100Ω impedance, from the frequency of 1 MHz to 100 MHz link characteristic impedance to the selected nominal characteristic impedance should not exceed ± 15Ω. 6) The change of return loss is represented by the change in the impedance of the roll loss link. 7) Attenuation / string ratio (ACR) link proximal string attenuation and link attenuation, in db. 8) Loop DC resistance will be responsible for the test of the wiring system. My engineering personnel will use the tester provided by Microtest, and the system is completely tested and fill in records in detail to ensure that the wiring international standards are met. Test tools are as follows: Instrument equipment Name Model Specification Quantity Country Origin Production or Detection Ability 1 Pair Wiring Tool WP 93275LI 5 Wat 5 on the US Information Module and Wiring Shelf 4 Pair of Wiring Tools 788H1 5 USA for compression 110 Connection block 100M SCANER 1 US support frequency 100MHz, test content including: connection diagram, length, attenuation, next, psnext, ACR, PSACR, reflow loss and impedance Gigabit Tester Microtestomniscanner 1 US support frequency range of 300MHz Content includes: connection diagram, length, attenuation, NEXT, PSNEXT, ACR, PSACR, ElFext, Pselfext, Reflow loss and impedance fiber tester MicrotestFiberlight & Fibereye 1 US Support frequency range of 300MHz test content includes: Attenuation After the engineering is completed, we will Provide users with a complete information document of a complete set of wiring systems. We can also be responsible for training system managers so that the automation center managers have independent management and maintenance capabilities on the wiring system. b. Wiring system Engineering Electrical Test Methods and Environment I. Comprehensive Wiring System Engineering Electrical Test Connections Requirements As follows: 1 Acceptance requires that the cable wiring link requirements apply to only a single wavelength in one transport port. And press GB / T8401-1987. c. Test content of the wiring system The transmission performance of a wiring system is determined by a variety of factors: cable characteristics, connecting hardware, jumper, overall loop connections, and installation quality. For the final acceptance test standard for integrated wiring system project, we will refer to the standard "Construction and Acceptance Code for Construction and Construction Group" (CECS 89:97) in accordance with the Standards of China Engineering Construction Standardization Association.
The specific system test content is as follows: 1. Symmetric cable wiring link performance acceptance requirements 1) Characteristic impedance This engineering symmetric cable wiring link adopts 100Ω impedance, from frequency 1MHz to the highest frequency, link characteristic impedance and selection The tolerance of the nominal characteristic impedance should not exceed ± 15Ω. 2) Roll loss in either interface of the symmetric cable, the measured echo loss should be greater than or equal to the fold line connected to the value of the following Table 5. Table 5 Minimum retransmission loss frequency MHz minimum echo loss at each wiring interface DB D 1 to 10 1810 to 16 1516 to 20 1520 to 100 103) Attenuation Link Attenuation should be less than or equal to the table 6 to give the value Connected fold lines and should also comply with this section 5) Requirements for attenuation / string ratio. Therefore, the actual attenuation may still need a margin in accordance with the requirements of the following Table 6. Table 6 Maximum attenuation value frequency MHz maximum attenuation DB D grade 0.1 -1.0 2.54.0 4.810.0 7.516.0 9.420.0 0.531.25 13.162.5 18.4100.0 23.24) Near-end crosstalk Attenuation should be greater than or equal to the fold lines connected to the value of the value below, and should also comply with this section 5) to the decay / string ratio. Therefore, the actual proximal string attenuation is eliminated in accordance with the requirements of the following table 7, may have a margin. Table 7 Minimum proximal string tone rate MHz minimum proximal string Decal DB D grade 0.1 -1.0 544.0 4510.0 3916.0 3620.0 3531.25 3262.5 27100 245) Attenuation / crosstalk ratio (ACR) linkage / string ratio indicator cannot be Table 7 and Table 6 are directly calculated, and its attenuation / string ratio should be greater than the fold lines formed by the value given in Table 8 below, and should also meet the requirements of this section 3), 4) and 5). That is, the decay of the link and the proximal string attenuation not only meets this section 3) and 4), and there should be a certain wealth to meet the requirements of this article. Table 8 D-level link minimum attenuation / string specific frequency MHz minimum attenuation / crosstalk ratio DB 1.0 -4.0 4010.0 3516.0 3020.0 2831.25 2362.5 13100 46) Line DC resistance links The loop current resistance should be smaller than the following table 5 given the indicator. Table 9 Maximum loop DC resistance (unit: ω) link level D level maximum loop resistor 407) The propagation of the propagation of the delay link is smaller than the indicator given in Table 10 below. The maximum propagation time of the horizontal wiring link is less than 1.0 μs. Table 10 Maximum propagation delay (μs) D 30 1.08 (μs) D 30 1.08) Longitudinal transform loss and longitudinal transformation transfer loss ITU-T117 Recommended longitudinal conversion loss (LCL) and portrait Transform Transfer Loss (LCTL), its value should be greater than the value given in Table 11 below. Table 11 Minimum longitudinal transform loss and longitudinal transformation transfer loss frequency MHz minimum longitudinal conversion loss and longitudinal transformation transfer loss DB D 0.1 401.0 404.0 - 10.0 3016.0 - 20 - 10.0 - We provide super five wiring systems and fiber The field test parameters of the system are guaranteed to meet the international standard requirements of the links and channels of the EIA / TIA 568/569/606 Cat5e or ISO11801 Class D wiring system, and can reach the performance requirements of the super five type wiring system. After the test is completed, we will provide test reports, including information point test tables, twisted pairs and fiber test reports.
6.4.1.2 Testing of network equipment a. There are two test switches of the switch: the first species in an emulating network environment; the second method is to test the product using a dedicated network test equipment. , Such as dedicated performance analysis instruments SmartBits 2000, IXIA 1600, etc. In order to make performance tests have a fair consistent assessment criterion, IETF has a workgroup called a reference method working group that defines a series of reference terms and methods for performance testing of network devices, such as throughput, delay, and shaping. , Forwarding rate, etc., each noun has a strict definition and is announced by RFC. The Netcom Systems SMARTBITS tester is tested on the switch based on the definitions in RFC 1242, RFC2544, RFC2885, and RFC2889. Among them, the performance test items are performed have the following: 1. Throughput throughput is one of the most important indicators that reflect the performance of the switch. According to RFC1242, throughput is defined as the maximum revolution rate in the case where the switch does not lose any one frame. Since the switch is different in different working modes, the throughput will be different, so you need to test separately. For 10 / 100m switches, test 10/10 throughput, 100/100 throughput. The measure of throughput should be performed for frames of different lengths. The switch products should reach the line speed. The so-called line speed means that the switch has sufficient ability to forward the smallest data packet in full speed. 2. The typical forwarding type of delay switches has two types of storage forwarding and rapid forwarding. According to RFC 1242, the laten defined in the storage forwarding mode is: the first bit of the input frame to the input port and the output frame appears at the time interval of the output port, ie the LIFO (Last In First Out) delay. Fast forwarding mode Delay is defined as: The first bit of the first bit of the input frame has arrived at the input port and the output frame appears at the time interval of the output port. For the switch, the delay is another important indicator of the performance of the switch, and the greater the delay, the slower the speed of the switch processing frame. Different management switches and non-tube switches are different due to the different system load, and there is a large difference in frame transgeneration delay. 3. Frame Lose Rate Continuous Load Ratio, Although the loss of the Ethernet protocol specified in the EtherNet protocol guarantees that the packet loss does not affect the correctness of the data, but a large number of loss reduces the utilization and practical performance of the network. . 4. Back-to-back package: NFS file server, disk replication backup application and Novell NetWare network typically generate a large amount of back-to-back (continuous continuous package) packets, if any frame is lost, the entire outbreak transmission To be repaid, leading to performance degradation. Back-to-back package delivery test is the sluggage of Switch at the back-to-back package. 5. Fanout Switching Test: Test whether Switch generates traffic packages or other packages. 6. Illegal frame test: Switch generally adopts storage forwarding technology, so if you enter deliberately generated error packages from one port with the Ethernet tester, if the length is less than 64 bytes, or length is greater than 1536 bytes , Or CRC check code error, etc, these frames should not be seen from other ports. 7. HEAD-OF-LINE block test: If a port is packaged in two destination ports, one of the destination ports are blocked, but the other destination port does not block, then Switch should be able to send the package to the non-blocking port, if sent to If a frame loss occurs in a non-blocking port, this switch exists in the HEAD-OF-LINE blocking.
8. X-stres: This test checks the switch when all ports are transmitted and received, and different load conditions are generated when testing, such as (10% ~ 90% load), record package loss, the less packet, the better. b. The server's test server test includes the following: (1) All ordering equipment has arrived and intact. (2) Check the equipment installation and ensure that all devices meet the installation specifications. (3) Whether the operating system is properly installed and activated. (4) Whether the application software is properly installed and activated, whether the application system can operate normally. (5) Whether various peripherals are properly installed and can be used normally. (6) Whether the correct network configuration is performed, the network interconnection of the device can be carried out smoothly. 6.4.1.3 Test detection of multimedia devices The central control and the connectors are normal, and whether the socket is normal. PC runs the Explorer tool; check the device installation, confirm the installation, compliance; stable check; software reliability test; system stable test (1-2 days); performance adjustment debugging. Check if the projector lens is damaged, whether the imaging is clear, whether the heat dissipation is normal. Whether the booth lighting is intact, whether the monitor screen is displayed normally, whether the output is normal. 6.4.2 System trial operation The system trial operation, submitting system operation report, analyzes and optimizes system operation. Make sure the performance of the computer system and the operation of the device meet the requirements of the contract and product performance requirements. At the same time, through various applications, the overall performance of the system reaches the system's performance requirements, ensuring the security and reliability of the network system platform and computer system platform, providing safe and reliable guarantee for the normal operation of various application systems. During the commissioning period of the system, our company will provide users with the following technical support: A. The system trial operation is sent by our company to guide the user's operation in the site, so that users can be familiar with the system and use of the system as soon as possible. Method; B, on-site exclusion of hardware failures and software failures in the system trial operation, and provide spare parts for easy problems; C, provide technical support hotline, accepted various technical issues related to system operation and maintenance Users' at any time; D, the user's technical personnel requirements, always explain the structure and design of the system at any time, including hardware performance, system structure characteristics, and more. 6.4.3 System Acceptance Product Acceptance Standard: 1. Requirements for all equipment, products, models, specifications, quantities, exterbs, appearances, packaging, and information, etc. Acceptance. 2, after the box, you should register all products, parts, accessories, user license, information, media, compare with the packing single, if there is access, the supplier resolves, if the supplier solves, if the impact Terminally according to the contract. 3. Equipment power-on test should be carried out in a single table, and all equipment is automatically self-test, it can be coupled to each other. 4, all the hardware and software are all installed and connected to the system test, should be carried out strictly according to the test plan, do a good job in the original record. 5. If the equipment performance indicator or function does not meet the tag and contract requirements in the commodity inspection or system test, it will be considered unqualified, and the equipment usage unit has the right to refuse and require compensation. Acceptance method: 1, both sides jointly conduct on-site acceptance, if necessary, can invite equipment manufacturers to participate. 2. See "Computer System Installation, Test, Acceptance Report" and "Equipment, Software Installation, Test, Acceptance Report". Acceptance form: "Computer System Installation, Test, Acceptance Report" and "Equipment, Software Installation, Test, Acceptance Report".
Acceptance documentation: including the system all related product manuals, original manufacturer, 3C certificate, technical document, information, and installation, test, acceptance report, etc. document collection volume delivery, etc. 6.4.4 System Management After the entire hardware system project test, we will also provide all relevant project documents and technical cooperation, maintenance, and services such as the project project. In order to ensure the quality of the project, we will provide a full project project implementation document after the engineering is completed. Project implementation documentation project implementation document mainly includes engineering documentation, engineering acceptance document, and work task document three categories: (1) Engineering record document engineering record document for recording the specific process of project implementation, the human and material resources, engineering implementation process The statistics of the materials used and other information related to the engineering. There is a "equipment material registration form", "pre-work record table", "engineering preparation record table", "live construction record table", etc. (2) Engineering acceptance document engineering acceptance document is used to confirm the acceptance of the company and the user to the project at the end of the project. The engineering acceptance form is usually two copies, and the two parties have a file. There are "equipment, software installation acceptance table". (3) Work Task Document Work Task Document The process of logging work and specific implementation is usually used inside our company. Including the following forms: "Work Task Book", "User Service Requirements", "User Maintenance, Maintenance Registration Form", "Contract Maintenance Program and Record Form". The above engineering documentation, if necessary, can provide electronic document form, so that users can use the computer to maintain system maintenance management. Chapter 7 Project Management and Progress Schedule 7.1 Project Construction Organization Structure In order to ensure the smooth completion of the informationization project of the new teaching building of the Guangzhou City, our company will organize and carefully select people to participate in this system construction. Specialized teams provide users with perfect, professional services. The organization of the entire project will be composed of our company and users. The organizational structure of the project can be referred to: 7.2 Signing and Project Construction Project Project This project will provide users with network equipment, computer, projectors, servers in the process of signing contracts according to user requirements. And the original supplies issued by the original manufacturer of the exhibition station. After the contract is signed, we will strictly follow the contract requirements to ensure that the project is completed on time. At the same time, our commitment does not affect the normal life and work order of the third middle school users in Guangzhou. For this project, we will complete delivery, implementation and acceptance within 38 days after the contract is signed. We are committed to providing equipment for the original, brand new, compliant with the national and user proposed by quality standards.
7.3 Project Quality Assurance and Construction Management 7.3.1 The quality management of the company's system integration and software development project has been designed and practical in the past decade, and our company has formed a complete quality management system, which is a campus of Guangzhou 3rd Middle School. The smooth implementation of the network project and the guarantee of construction quality. First, our company has a clear division of labor, and improves the company's work quality and technical level through specialization. The specific division of labor is as follows: 1. System integration technical support: Pre-sales technical support and provide technical solutions 2, Project Engineering Department: Responsible for goods transport, wiring installation, network and system installation, after-sales service support, hardware equipment maintenance, software system implementation Waiting for a series of work 3, system training department: responsible for various computer basic knowledge and application training 4. Application R & D center: responsible for deep software and system technology support each project will have a head of project, responsible for coordination, mobilizing the company's internal Various resources, formulate plans and supervise the operation of the entire system. Second, we have a standardized project construction. The professional engineering implementation is strictly in accordance with the operation process and technical requirements. During the construction process, the implementation team also provides the user with the project schedule to the user, allowing the user to clear the construction plan and construction progress of the entire project. Again, we also have scientific management means. From the beginning to the construction of construction to the end of the test, we have the corresponding supporting record form, including the "Engineering Implementation Record Table", "Equipment Material Registration Form", "Preparation Record Form", "Engineering Preparation Record", "On-site construction record table", "Engineering Acceptance Report" and other projects, "User Service Requirements", "Contract Maintenance Program and Implementation Record Form", "User Maintenance, Maintenance Registration Form" and other after-sales service documents. It is convenient for system management and maintenance departments for system maintenance and management. At the same time, all record forms are entered into computer for electronic management. In addition, our company also applies an office automation system within the company to realize the full-scale task book, and the company's internal task books and application orders can be in the form of electronic literature in the company. Realize the traffic management. The company also requested customers to fill in customer satisfaction forms and assess the work quality of engineering maintenance personnel to further ensure service and work quality. 7.3.2 Construction and Quality Management of this project For the information of the new teaching building of Guangzhou City, we will provide comprehensive and reasonable corresponding management measures through the company's perfect quality management system. Before the equipment arrives, the project is organized by the project authorities (salesman, program development, technical guidance, project implementation person, project implementation team, quality monitoring team, and after-sales service team) to convene project preparation meetings, introduce project implementation plan and Related situations, arrange various work, discussing foreseeable technical details, implementing methods and implementation progress. Establishing the project's "Project Progress Record Form" as the beginning of the project, the salesman arranges the purchase and determines the initial purchase date. The project manager discusses and defines the specific operation details to do the corresponding memo records. During the implementation of the entire project, the Quality Supervision Team is responsible for supervising the quality of the entire project, thereby ensuring the quality of the entire project (including the quality assurance of the purchase equipment and the quality assurance of the project implementation). For the implementation of the information engineering project of the new teaching building in Guangzhou, its quality assurance is important. To this end, we will refer to the ISO9001 quality system standard for work, and respond to the requirements of the bidding, the promise is as follows: 1. Provide new, goods that meet the national quality standards and standards, environmental protection requirements, the quality, specifications and technical features comply with the contract Claim. 2, guarantees that there is a nameplate on each cargo (including: manufacturer, cargo name, model specifications, factory dates, service hotline, etc.) and with product quality inspection qualification marks. 3. There is a problem with the quality of goods, which is responsible for three packs (repair, replacement, and retreat), and the fee is responsible by the quoter.
4. Before the acceptance, the goods are kept by us, because of the quality problems caused by the improper delivery of our customers, we are responsible for replacement, and the cost is borne by our own. The entire guarantee process includes procurement, product identification, process control, inspection and testing, corrective measures, quality records, training and other content.
Chapter 8 Quality Assurance and After-sales Service 8.1 After-sales Service Commitment Based on the requirements of any technical specifications and services, our company's services to bidding equipment: 1. Our company has a fixed office location in Guangzhou, and has special After-sales service center. We are responsible for transporting the hardware equipment, systems, software involved in this bid to the owner's designated location, and all the expenses delivered are borne by us; our company will provide on-site installation services for all products involved in this tender, and guarantee The system is working properly after installation. All wires, equipment and accessories required for system installation and commissioning are borne, and their costs are included in the bidding offer. 2. Our company provides the original, new, new, new, comprehensive, national and user proposed equipment; guarantees that equipment and equipment are intact, no damage, configuration and packing order; equipment Quantity, quality and performance are not lower than the requirements made in this program. 3. Our company provides the application system free software version upgrade and function update services during the operation of the pilot project information system. 4. Technical support, after-sales service 1) Technical Support: I have a technical support support for project units, providing technical support for the main equipment and software functional expansion in future user systems. 2) System after-sales service: (1) Maintenance of system environment, mainly to prevent normal use due to operating system failure or system configuration failure. (2) System application software maintenance, the application software is designed to update maintenance during the shelf life, and quickly restore the system failure due to user malfunction or certain error operations. (3) We are responsible for system software maintenance, application software upgrades; if the hardware equipment provided by suppliers, we are responsible for maintenance. (4) We have made the following clear commitments to system maintenance: a. All equipment in the quotation document provides three years of free warranty services, including the manufacturer's 20-year-old quality guarantee, from both parties, on the acceptance form The day from the date. b. During the warranty period, we are responsible for the equipment provided by the equipment, and provide free access to the user system to provide the user system. c. For the response of the equipment fault repair, our promise period during Monday to Friday, the fault response time during the week - 20:00, and needs to arrive at the site within 2 hours. The rest time is 6 hours, and the site time does not exceed 10 hours; and repaired in 8 working hours (8: 00-18: 00). Emergency situation We will immediately get repaired. d. If the device failure is still unable to exclude after 8 hours of overhaul, our commitment to provide an alternate device that is not lower than the faulty device specification model for the project unit until the fault device is repaired. e. All equipment warranty services are all in-site warranties, namely, from our parties to user equipment. All expenses generated by us are borne. f. For if it is unclear whether it is hardware failure, we will cooperate with the application developer. When necessary, it will arrive at the on-site assistance to eliminate problems within the above response time. g. We are responsible for the stability of the system. Responsible for free replacement of hardware faulty components 6. To implement the project to establish a special project team, ensure the stability of the technical team; 7. As a technical consultant's role, our company provides users with various technical consulting services for the system, such as System migration, complex application installation, management and maintenance, etc. 8. Professional technical training for users with certified engineers with more than three years of teaching or engineers. 9. Accept the contract clause (such as payment payment, etc.) proposed by the bidding party (or user), and willing to sign a contract in accordance with the adherence of the bidding. 10. Our company provides a period of repair, maintenance content and scope is all hardware and software involved in this tender. 11. We are committed to unparalleled or subcontract the project projects in any way.
12. After the warranty period, if the user wants to continue to provide technical consulting, support, equipment maintenance and maintenance, the two parties can be negotiated, and the repayment service contract is signed separately. Our company guarantees the exact quality service with the premium price. 8.2 Our company's service system 8.2.1 After-sales service Overview 8.2.1.1 Feasibility Argument We will provide integrated optimization options for hardware, local network, remote network, system platform, development environment, etc., provide system planning or secondary development support. We have many years of experience in providing a variety of computer system's comprehensive solutions, which is the basis for customer-quasiors, providing customer optimization options. We can start from the actual business and conditions of the customer, combined with the development trend of the future information industry, establish system objectives with users in the early stages of system construction, and determine system construction planning, and provide systematic analysis reports to customers according to customer needs. Comfortable business norms, project proposals, system proposals and implementations, enabling customers to improve corporate management capabilities through standardized business processes and optimized solutions, thus improving enterprise competitiveness and ultimately improving corporate efficiency. Our company can help customers: choose the most suitable hardware; determine network system solutions that meet the needs, including local networks and remote networks; determine the selection of system platforms; determine development environments; 8.2.1.2 Implementation Support Our company provides hardware, system software installation, commissioning, application software development. Thanks to the experienced technical support and development team, help customers provide software and hardware and peripheral installation and debugging, design, establishing wiring systems and network systems based on their respective needs and conditions, and develop application system software; can also help customer planning and management Network, port existing applications to open systems and other platforms, and provide recommendations for the maintenance of the above system, thus enable customers to truly meet the needs. The whole process of our company can provide a normative help from customer needs, profiling, summary design, detailed design, encoding implementation to test, ultimate implementation, and maintenance, etc. have a set of specifications. Our company is planning and configuring wiring systems and network systems, from assessing customer communication requirements, investigating the actual environment of placing various facilities and building groups, designing suitable integrated wiring system programs, determining the required communication medium, installation , Supervise, test the entire system, submit detailed documentation, to network system program design, equipment selection, network installation, debugging optimization, system maintenance, post-expansion, etc., provide comprehensive and professional implementation support for customers. 8.2.1.3 After-sales service, the after-sales service provided by our company is: 1. Free telephone technical consultation When the user system fails or if there is questions, users can call the company to seek technical support, our company's professional engineers will promptly Answer the various technical issues raised by the customer. II. On-site maintenance service When the failure of the customer report cannot be solved by technical telephone support, the company will dispatch engineers to the customer on-site exclude failure in accordance with the response time of the contract. Retrieves and delivery including fault devices. III. Interconnected remote maintenance According to the situation and customer online, remote software maintenance, fast, convenient, and timely resolve customers' software issues. IV. Contracts Regular maintenance Through signing maintenance contracts, our company engineers will rely on specialized technical means to conduct regular maintenance of computer systems, and find potential problems in time. A on-site service, including the inspection, debugging and equipment of the hardware and software system, to understand the operation of the network system, give a rationalization solution for potential issues; once the fault occurs, the highest priority site maintenance will be provided To accurately troubleshoot the fault and restore the normal operation of the system. When the user equipment is faulty in the specified time, our company will provide the same functionality for users to use until the fault repair. V. Warranty Service Users from our company to purchase equipment, configure the network, and enjoy warranty service. During this time, our company will provide you with a free telephone consultation service, exclude hardware failures, and restore the normal operation of the hardware system.
After the warranty period, it is recommended that the user signs a computer system overall maintenance contract. 6. Training new system will inevitably need to master new technologies, our company is willing to provide appropriate training content according to your needs. Training includes technical training and management training. Help you build a flexible, powerful information technology team through technical training, strengthen your employee's technical ability; through management training, help you effectively manage and make useful use of resources within the company's various documents, CDs, information and other resources. Timely Update Information Receiving Products and Technology Our company will regularly pass or mail the related products, new dynamics of related technologies, and regularly organize lectures and presentations, helping customers master the trend and development of the information industry.. In short, our goal is to provide you with comprehensive, specialized service and support, allowing you to work with your computer to stabilize, reliably. The user's interest is our interest, and the end user will be full support in our company. Whether it is still in the future, our company will give you the most satisfactory service. System maintenance and after-sales service. 8.2.2 After-sales service organization structure
Field Technology Group: It belongs to the first-line project implementation or technical support personnel, which is a technical team to serve the user management site. The technical team performs project implementation and management in accordance with the work requirements in the Standardization Service Process, as well as manage-related networks, hosts, and application systems being entrusted by users. Technical team members have accepted strict professional training and can immediately handle most of the user's lives. If you encounter unclear, technical issues that cannot be resolved, the team will transfer it to the professional service center in the shortest time. Professional Service Center: It is the core department of the company's IT management technology, which has focused most of the company's technical elites. Professional Service Center members have not only passed primary and advanced training and certification, but also to two typical large applications, and have extensive experience in managing project management and customer support. The professional service center accepts the relevant issues of the on-site technical team, and conducts research, gives solution recommendations, and submits the field technology team to implement the resolution, and record into the company's consulting service database. In some issues involving development, it will be resolved to the company's research and development department; some issues may require coordination of vendors to solve together. Application Research and Development Department: It has concentrated the best software development engineers, they specialize in design and development of software products, and can customize certain special management applications for customers. You can also help customers find problems and provide answers when needed. Vendor Technical Support Center: Some issues may require coordination of vendors to solve. The company is responsible for the full tracking of the problem, so that the speed of problem solving is able to ensure the quality of service. 8.2.3 Standardization Service Process 8.2.4 After Sackage Terms In order to better serve our customers, the company will follow the following terms to provide after-sales service and technical support. 1. First-site installation, debugging and customization of the products purchased 2, on-site training and formal training for purchased products 3, upgrade services in the upgrade period 4, telephone support services for the product's understanding In the use of the fault handling consultation in the use of the product, the user can use the hotline and the company through the hotline during the normal office time. For normal working hours, the mobile phone that can be dial is seeking support. Technical support will try to help users solve the problem in the phone as soon as possible. If it is not possible to resolve immediately, the hotline will record the name, contact number of the user unit, and actively contact the user immediately after getting the solution. 5. Remote Login Support Services In order to find the cause of the failure as soon as possible to solve the problem, the company's users who have dial-up networks can use the dial-up network, directly enter the user system to find faults, and analyze the problem. This approach is a very effective way for installing simple patching software, obtaining system version information, etc. 6, email hotline service users encountered problems, with inconvenience of telephone contacts, the company provides users with email services. Users can send emails to the specified email address (not less than two fixed email addresses), will have a single message to receive the user's mail and make a solution in time. 7. Users with internet services can get WWW-based technical support services at any time. 8. Regularly provide technical Q & A book In order to let users know the company's latest technology dynamics and company strategies, we provide users with corresponding academic books and magazines in time. 9. Contact with customers to maintain regularity in order to accurately understand the needs of users, the problems faced in practical applications and the company's service status, the company's customer service center will regularly access the user in order to timely find the problem Content is better to do a good job. 10. Response time company records the product technical issues that appear in the customer project, and divide the response level according to the situation.
Response level: Priority 1 (P1): Software products do not work, affect user business; priority 2 (p2): software products can work, but some functions have failed, performance degradation, but does not interrupt user business or important site high-end platform products There is a problem with the installation; priority 3 (p3): Software operation is still, but the system error or low-end platform has problems; priority 4 (P4): User's improved product improvement, or product application issues. Telephone technical support allows you to answer a variety of technical issues to answer customers, and general issues are guaranteed to resolve within the same day; but when there is no ready-made solution, we responded based on priority. In particular, the customer service center will respond within 1 hour of the notice for the user's ability to use system network management products. When the technical center confirms that the project must be sent to the site to solve the technical problem, it provides written instructions by the user. When traffic is normal, solve the problem in 48 hours or the equipment, minimize user loss. In case of system crash or paralysis, the company will actively cooperate with application software developers and hardware network operating system supply integrators in time, provide fault analysis and solutions, and strive to restore the normal operation of the system in the shortest time. 8.3 Training Program 8.3.1 Training Period to help users use, manage, and maintain systems, improve work efficiency, our company will provide comprehensive technical training for different level users, training content includes basic training such as operating systems, users can independently Maintain and configure the system after the transformation, so that the entire system can operate normally and safely. This training program is initially arranged by our company, and the user project unit has the right to choose the content of the training project proposed by our company. We will adjust according to the user's specific needs. 8.3.2 Training Program The company will send a training lecturer with more than three years of teaching experience, using Chinese teaching, providing user-related personnel training, application management software basic operation, maintenance, system management, system maintenance And basic training, enabling relevant technicians to master the basic maintenance and application of the product. At the same time, we will be related to all related supplies such as training personnel and Chinese chronicles. Training content users can adjust the corresponding adjustments to our negotiation. The principle of our part is to provide the best training services for the project. Use the user's use to explore the maximum space. It is our service to be fully satisfied. The entire training program will arrange within 10 days after the contract is signed, and the time is 2 days. 8.3.3 Training schedule: 2 days place: two parties negotiated to arrange participants: users related users: unlimited 2 main training content 1 Integrated wiring design 2 switch knowledge and daily maintenance 3 server use and maintenance 4 PC hardware basic knowledge And the daily use and maintenance of hardware; 5 Other peripherals and maintenance. 6 Users need a supplementary training content.
