3Com MSR 50, MSR 30 manual T1 set clock, 685

685

t1 set clock

Syntax t1 t1-numberset clock { master slave }

undo t1 t1-numberset clock

View CPOS interface view

Parameter t1-number: Number of a T1 channel on the CPOS, in the range 1 to 84.

Master: Set the clock mode of the T1 channel to master.

slave: Set the clock mode of the T1 channel to slave.

Description Use the t1 set clock command to configure the clock mode of the T1 channel.

Use the undo t1 set clock command to restore the default, that is, slave.

T1 channels on the same CPOS physical interface can use different clock modes, depending on connected devices. For example, when connected to a SONET/SDH device, a T1 channel should use the slave clock mode, and when directly connected to another device with fiber-optic, it can use either mode so long as the mode is different from the one used at the opposite end.

Note that different T1 channels of the same CPOS physical interface are independent of one another in terms of clock mode.

Example # Set the clock mode of T1 channel 1 to master.

<Sysname> system-view

[Sysname] controller cpos 1/0

[Sysname-Cpos1/0] t1 1 set clock master

t1 set frame-format

Syntax t1 t1-numberset frame-format { esf sf } undo t1 t1-numberset frame-format

View CPOS interface view

Parameter t1-number: Number of a T1 channel on the CPOS interface, in the range 1 to 84.

esf: Sets the T1 channel to use the extended super frame (ESF) format.

sf: Sets the T1 channel to use the super frame (SF) format.

Description Use the t1 set frame-formatcommand to set the framing format for T1 channel.