3Com MSR 30, MSR 50 manual Ft1 code, Ft1 clock master slave, Undo ft1 clock

244CHAPTER 15: T1-F INTERFACE CONFIGURATION COMMANDS

You may use this command to adapt signal waveform to different transmission conditions such as the quality of the signal received by the receiver. If the signal quality is good, you can just use the default setting.

Example # Set the cable length to 40.5 meters (133 feet) on T1-F interface Serial 2/0.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0]ft1 cable short 133ft

ft1 clock

Syntax	ft1 clock { master slave }
	undo ft1 clock
View	T1-F interface view
Parameter	master: Adopts the internal clock as the clock source.
	slave: Adopts the line clock as the clock source.
Description	Use the ft1 clock command to configure the clock source for the T1-F interface.
	Use the undo ft1 clock command to restore the default, that is, line clock.
	When the T1-F interface is working as DCE, choose the internal clock for it. When
	it is working as DTE, choose the line clock for it.
	When the T1-F interfaces on two routers are directly connected, one interface
	must work in master clock mode to provide the clock source while the other in
	slave clock mode to accept.
	When the T1-F interface on your router is connected to an exchange, it is working
	as DTE and therefore must be configured with the slave clock mode to accept the
	line clock provided by the exchange working as DCE.
Example	# Use the internal clock as the clock source on T1-F interface Serial 2/0.
	<Sysname> system-view
	[Sysname] interface serial 2/0
	[Sysname-Serial2/0] ft1 clock master

ft1 code

Syntax ft1 code { ami b8zs }

undo ft1 code

View T1-F interface view