Cisco Systems OL-11497-03 manual Installing a Flash Memory Card, PRP Auxiliary Port Signals

Chapter 3 Installing the Router

Connecting to the Console and Auxiliary Ports

PRP Auxiliary Port Signals

The auxiliary port on the PRP is a DTE, RJ-45 plug for connecting a modem or other DCE device (such as a CSU/DSU or another router) to the router. The port is labeled AUX, as shown in Figure 3-9. The asynchronous auxiliary port supports hardware flow control and modem control. Table 3-4lists the signal-to-pin correspondence for the PRP auxiliary port.

Table 3-4	PRP Auxiliary Port Signals
Auxiliary Port Pin		Signal	Input/Output	Description
1		RTS	Output	Request To Send
2		DTR	Output	Data Terminal Ready
3		TxD	Output	Transmit Data
4		GND	—	Signal Ground
5		GND	—	Signal Ground
6		RxD	Input	Receive Data
7		DSR	Input	Data Set Ready
8		CTS	Input	Clear To Send

Installing a Flash Memory Card

By default, a Flash memory card containing a valid Cisco IOS software image is inserted in PCMCIA slot 0 before the router is shipped. (See Figure 3-10.) PCMCIA slot 0 (SLOT-0) is the bottom slot and slot 1 (SLOT-1) is the top slot. Both Flash memory card slots on each RP can be used at the same time.

The software configuration register is set to 0x0102, which causes the router to boot automatically from the Cisco IOS software image stored on the Flash memory card.

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
3-20	OL-11497-03