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Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
Chapter 1 Preparing for Installation
Cisco ASR 9001 Router Port Connection Guidelines
Console Port Signals
The RP console port is an RJ-45 interface for connecting a terminal to the router. The console port does
not support modem control or hardware flow control and requires a straight-through RJ-45 cable.
Before connecting a terminal to the console port, check the terminal setting for the data transmission
rate, in bits per second (bps). The terminal transmission rate setting must match the default rate of the
RP console port, which is 115200 bps. Set the terminal to these operational values: 115200 bps, 8 data
bits, no parity, 1 stop bits (115200 8N1).
Table 1-3 lists the signals used on the RP console port.
Auxiliary Port Signals
The RP Auxiliary (AUX) port is a RJ-45 interface for connecting a modem or other data communication
equipment (DCE) device (such as another router) to the RP. The AUX port supports hardware flow
control and modem control.
Table 1-4 lists the signals used on the Auxiliary port.
Table 1-3 RP Console Port Signals
Console Port Pin Signal Input/Output Description
1 RTS Output Request to Send
2 — — (Not connected)
3 TxD Output Transmit data
4 GND — Signal ground
5 GND — Signal ground
6 RxD Input Receive data
7 — — (Not connected)
8 CTS Input Clear to Send
Table 1-4 RP AUX Port Signals
AUX 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