Cisco NM-1CT1 Configuration Note page 18

Configuring the PRI Interfaces
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Step 9
18 1-Port and 2-Port ISDN-PRI Network Module Configuration Note
After a few seconds you see the user EXEC prompt (Router>). Type enable and the
password to enter enable mode:
Router> enable
Password:
Configuration changes can be made only in enable mode. The prompt changes to the
privileged EXEC (enable) prompt (Router#):
Router#
Enter the command config terminal to enter configuration mode:
Router# config terminal
Router(config)#
The router enters global configuration mode, indicated by the Router(config)# prompt.
If you have not configured the router before, or want to change the configuration,
configure global parameters, passwords, network management, and routing protocols. In
this example, IP routing, AppleTalk routing, and Internetwork Packet Exchange (IPX)
routing are all enabled:
Router(config)# ip routing
Router(config)# appletalk routing
Router(config)# ipx routing
For complete information about global configuration commands, refer to the Cisco IOS
configuration guides and command references.
Enter the controller t1 command to select the CT1/PRI interface to configure. For
example, to configure a T1 interface in slot 1 and unit 0, enter the following command:
Router(config)# cont t1 1/0
Specify the clock source for the module. The clock source command determines which
end of the circuit provides clocking:
Router(config-controller)# clock source line
The clock source should be set to use internal clocking only for testing the network
Note
or if the full T1 line is used as the channel group. Only one end of the T1 line should be
set to internal.
Specify the framing type:
Router(config-controller)# framing esf
Specify the line code format:
Router(config-controller)# linecode b8zs
Router(config-controller)#
%CONTROLLER-3-UPDOWN: Controller T1 1, changed state to up
Router(config-controller)#