Console Port and Auxiliary Port Connection Guidelines
Each RSP/RP card has two EIA/TIA-232 (formerly RS232) serial RJ-45 connection ports:
• Console port—RJ-45 interface for connecting a data terminal device to the router, which you need to
perform the initial configuration of the router.
• Auxiliary port—RJ-45 interface for connecting a modem.
The console and auxiliary ports are asynchronous serial ports. Ensure that devices connected to these ports
are capable of asynchronous transmission.
Note
Console Port Signals
The 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 console port,
which is 9600 bps. Set the terminal to these operational values: 9600 bps, 8 data bits, no parity, 2 stop bits
(9600 8N2).
This table lists the signals used on the console port.
Table 5: RSP/RP Console Port Signals
DescriptionInput/OutputSignalConsole Port
Pin
———1
Data Terminal ReadyOutputDTR2
Transmit dataOutputTxD3
Signal ground—GND4
Signal ground—GND5
Receive dataInputRxD6
Data Set ReadyInputDSR7
———8
Auxiliary Port Signals
The Auxiliary (AUX) port is an RJ-45 interface for connecting a modem or other data communication equipment
(DCE) device (such as another router) to the RSP/RP. The AUX port supports hardware flow control and
modem control.
This table lists the signals used on the auxiliary port.
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
48
Preparing for Installation
Console Port and Auxiliary Port Connection Guidelines
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