The Cisco 2500, 1600 Series router is a multi-model router, but from another angle, it is a computer, just like everyone familiar with the Windows 95 PC. The Cisco router also contains both hardware and software. 1.1. Physical Port Introduction The Cisco 2500 Series contains the following ports: high-speed synchronous serial port, maximum support for E1 rates of 2.048m. With software configuration, the port can be connected to DDN, Frame Relay, X.25, PSTN (analog telephone line). Note: If you connect the phone line with this synchronous port, you will ask MODEN to support the V.25BIS synchronous / asynchronous serial port, which can be set to synchronous mode of operation. In synchronous mode of operation, up to 128K, asynchronous mode, up to 115.2k. AUI port, a crude cable. An external converter (AUI-RJ45) is generally required to connect 10BASE-T Ethernet networks. The ISDN port can be connected to the ISDN network (2B D). AUX port, the port is asynchronous port, the maximum rate of support 38400, mainly for remote configuration or unplug backup. Console port, mainly connecting the terminal or running a terminal emission program, configuring the router locally. High-density asynchronous ports, which can be connected to eight asynchronous lines through a turn eight cable. The Cisco 1600 Series Router mainly includes the following ports: AUI and 10BASE-T port, which can only be used at the same time. Synchronous / asynchronous serial port, is set to synchronize or asynchronously through software. The maximum rate of synchronization supports 2M speed, and the asynchronous mode is up to 115.2k. The console port ISDN port 2500 and 1600 series routers contain a variety of models, and various types of ports and numbers are different. Details consult with relevant parties.
