20
Route Switch Processor (RSP8) Installation and Configuration Guide
OL-4920-02
Installing the RSP8
Connecting a Console Terminal
The system console port on the RSP8 is a DB-25 receptacle DCE port for connecting a console terminal,
which you need to configure in order to communicate with your system. The console port is located on
the RSP8 just below the auxiliary port, as shown in
Figure 5
, and is labeled Console.
Before connecting the console port, check the documentation for your terminal to determine the baud
rate of the terminal you are using. The baud rate of the terminal must match the default baud rate (9600
baud). Set up the terminal as follows: 9600 baud, 8 data bits, no parity, and 2 stop bits (9600,8N2).
Use the console cable provided to connect the terminal to the console port on the RSP8, and then follow
the steps in the
“Restarting the System” section on page 21
.
Figure 5
Console and Auxiliary Port Connections
Note
The console and auxiliary ports are asynchronous serial ports; any devices connected to these ports must
be capable of asynchronous transmission. (Asynchronous is the most common type of serial device; for
example, most modems are asynchronous devices.)
Connecting to the Auxiliary Port
The auxiliary port on the RSP8 is a DB-25 plug DTE port for connecting a modem or other DCE device
(such as a channel service unit [CSU], data service unit [DSU], or other router) to the router. The port is
located next to the console port on the RSP8 and is labeled AUX. An example of a modem connection is
shown in
Figure 5
.
Using the Y-Cables for Console and Auxiliary Connections
For systems with two RSP8s installed and the HSA or the HA feature enabled, you can connect to either
the console or auxiliary ports simultaneously on both RSPs using a special, optional Y-cable. If only one
RSP8 is installed, it is the system active by default.
H3538
Modem
Console terminal
Auxiliary
port
Console
port
DB-25 female
DB-25 male
RSP