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PRP Port Connection Guidelines
PRP Auxiliary Port Signals
Cisco XR 12410 and Cisco XR 12810 Router Installation Guide
2-24
The PRP auxiliary port is a DTE, RJ-45 interface for connecting a modem or other
DCE device (such as a CSU/DSU or another router) to the PRP. The auxiliary port
supports hardware flow control and modem control.
Table 2-2
lists the signals used on the auxiliary port.
Table 2-2
PRP Auxiliary Port Signals
Auxiliary Port Pin
Signal
1
RTS
2
DTR
3
TxD
4
GND
5
GND
6
RxD
7
DSR
8
CTS
Chapter 2
Input/Output Description
Output
Request to send
Output
Data terminal ready
Output
Transmit data
—
Signal ground
—
Signal ground
Input
Receive data
Input
Data set ready
Input
Clear to send
Preparing for Installation
OL-17441-01
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