3Com MSR 30, MSR 50 manual T1 set clock, T1 set frame-format

282CHAPTER 17: FUNDAMENTAL CT3 INTERFACE CONFIGURATION COMMANDS

<Sysname> system-view

[Sysname] interface t3 2/0

[Sysname-T3 2/0] t1 1 sendloopcode inband-line-up

t1 set clock

Syntax t1 line-numberset clock { master slave }

undo t1 line-numberset clock

View CT3 interface view

Parameter line-number: T1 line number in the range 1 to 28.

master: Adopts the internal clock as the clock source on the T1 line.

slave: Adopts the line clock as the clock source on the T1 line.

Description Use the t1 set clock command to configure clock source for a T1 line on the CT3 interface.

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

When a CT3 interface is working in channelized mode, its T1 lines may use separate clocks.

Example # Use the internal clock as the clock source on the first T1 line on interface T3 2/0.

<Sysname> system-view

[Sysname] interface t3 2/0

[Sysname-T3 2/0] t1 1 set clock slave

t1 set frame-format

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

undo t1 line-numberset frame-format

View CT3 interface view

Parameter line-number: T1 line number in the range 1 to 28. esf: Set the T1 line to use the ESF format.

sf: Set the T1 line to use the SF format.

Description Use the t1 set frame-formatcommand to configure the framing format of a T1 line.

Use the undo t1 set frame-formatcommand to restore the default, that is, ESF.