Cisco ASR 9000 Series Command Reference Manual page 987

T3, E3, T1, E1 Controller Commands on the Cisco ASR 9000 Series Router
Examples
The following example shows how to set the clocking on the T1 controller in slot 6, subslot 0 to internal:
RP/0/RSP0/CPU0:router(config)# controller t1 0/6/0/0/1/1
RP/0/RSP0/CPU0:router(config-t1e1)# clock source internal
Related Commands
Command
controller e1, on page 970
controller t1, on page 974
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Description
Configures an E1 controller and enters E1 configuration
mode.
clock source (T1/E1)
Release 5.3.x
967