Installation guide

5-14 Cisco 4000 Series Installation Guide
Additional Configuration Tasks
Step 3 Specify the clock source for the module. The clock source command determines
which end of the circuit provides the clocking:
Router(config-controller)# clock source line
Note The clock source should only be set to use the internal clocking for testing the
network or if the full T1 line is used as the channel group. Only one end of the T1 line
should be set to internal.
Step 4 Specify the framing type:
Router(config-controller)# framing esf
Step 5 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)#
Step 6 Specify the channel group and time slots to be mapped. The command shown
sets the channel group to 0 and time slots 1, 3 through 5, and 7 are selected for
mapping.
Router(config-controller)# channel-group 0 timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1:0, changed
state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1:0, changed
state to up Router(config-controller)#
Router(config-controller)#
Step 7 Specify the serial interface, unit number, and channel group you want to modify:
Router(config-controller)# int serial 1:0
Step 8 Assign an IP address and subnet mask to the interface using the ip address
command as follows, substituting the appropriate IP address and subnet mask
for your site: