Cisco Systems UBR7225VXR specifications Console Port Signals, Auxiliary Port Signals

Chapter 3 Installing the Cisco uBR7225VXR Router

Console and Auxiliary Port Connection Equipment

Before connecting a terminal to the console port, configure the terminal to match the

Cisco uBR7225VXR router console port as follows:

•9600 baud

•8 data bits

•No parity

•1 stop bit (9600 8N1)

You need an RJ-45 console cable to connect the terminal to the console port. After you establish normal universal broadband router operation, you can disconnect the terminal.

You must supply your own interface cable between the auxiliary port and the equipment you are connecting. For console and auxiliary port pinouts, refer to the “Console Port Signals” section on page 3-15and the “Auxiliary Port Signals” section on page 3-15.

Console Port Signals

Both Data Set Ready (DSR) and Data Carrier Detect (DCD) signals are active when the system is running. The Request To Send (RTS) signal tracks the state of the Clear To Send (CTS) input. The console port does not support modem control or hardware flow control. Table 3-2lists the signals used on the console port. The console port requires a straight-through EIA/TIA-232 cable.

Table 3-2	Console Port Signal
Pin	Signal	Direction	Description
1	GND	–	Ground
2	TxD	<—	Transmit Data
3	RxD	—>	Receive Data
6	DSR	—>	Data Set Ready (always on)
7	GND	–	Ground
8	DCD	—>	Data Carrier Detect (always on)

Auxiliary Port Signals

Table 3-3lists the signals used on the auxiliary port. The auxiliary port supports hardware flow control and modem control.

		Table 3-3	Auxiliary Port Signals
		Pin	Signal		Direction	Description
2			TxD		—>	Transmit Data
3			RxD		<—	Receive Data
4			RTS		—>	Request To Send (used for hardware flow control)
5			CTS		<—	Clear To Send (used for hardware flow control)
6			DSR		<—	Data Set Ready
7			Signal Ground		–	Signal Ground
				Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
	OL-17309-02						3-15