Cisco 7206VXR Configuration Guide - Page 133

Chapter 3 Installing a Cisco 7200 VXR Router Connecting I/O Controller, NPE-G1, or NPE-G2 Cables DB-25 Auxiliary Port Cabling and Pinouts Table 3-15 lists the DB-25 auxiliary port signals for the C7200-I/O, C7200-I/O-FE, and C7200-I/O-FE-MII I/O controllers. The auxiliary port supports hardware flow control and modem control. Table 3-15 Auxiliary Port Signals for C7200-I/O, C7200-I/O-FE, and C7200-I/O-FE-MII Pin1 Signal Direction Description 2 TxD Out Transmit Data 3 RxD In Receive Data 4 RTS Out Request To Send (used for hardware flow control) 5 CTS In Clear To Send (used for hardware flow control) 6 DSR In Data Set Ready 7 GND - Signal Ground 8 DCD In Data Carrier Detect (used for modem control) 20 DTR Out Data Terminal Ready (used for modem control only) 1. Any pin not referenced is not connected. Note When connecting to an auxiliary port on a Cisco 7200 VXR router, the port will not function at baud rates higher than 19.2k. If the baud rate on the connecting device is set higher than 19.2k, either garbled text or nothing will be displayed on the screen. RJ-45 Port Cabling and Pinouts For the NPE-G2, NPE-G1, and the C7200-I/O-GE+E and C7200-I/O-2FE/E I/O controllers, both the console and auxiliary ports use rollover or straight-through cables with RJ-45 connectors. Adapters are available for connection to modems and other external communications equipment. (See Table 3-16.) OL-5013-09 Cisco 7200 VXR Installation and Configuration Guide 3-37