Cisco Systems 7200 VXR RJ-45 Port Cabling and Pinouts, DB-25 Auxiliary Port Cabling and Pinouts

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 3-15lists 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.)

Cisco 7200 VXR Installation and Configuration Guide

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