3Com MSR 50, MSR 30 manual Cable CT1/PRI interface view, Channel-set CT1/PRI interface view, 655ft

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You may view the state and result of the BERT test with the display controller t1 command.

Example # Run a 10-minute 2^20 BERT test on CT1/PRI interface t1 2/0.

<Sysname> system-view

[Sysname] controller t1 2/0

[Sysname-T1 2/0] bert pattern 2^20 time 10

cable (CT1/PRI interface view)

Syntax	cable { long { 0db -7.5db -15db -22.5db } short { 133ft 266ft 399ft 533ft
	655ft } }
	undo cable
View	CT1/PRI interface view
Parameter	long: Matches 199.6-meter (655-feet) and longer cable length. The options for
	this parameter include 0db, -7.5db, -15dband -22.5db. The attenuation
	parameter is selected depending on the signal quality received at the receiving
	end. In this case, no external CSU is needed.
	short: Matches a cable length shorter than 199.6 meters (655 feet). The options
	for this parameter include 133ft, 266ft, 399ft, 533ft and 655ft. The length
	parameter is selected depending on the actual transmission distance.
Description	Use the cable command to set the cable attenuation and length on the CT1/PRI
	interface.
	Use the undo cable command to restore the default, that is, long 0db.
	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 use the default setting. In this case, the CT1/PRI interface
	does not need an external CSU device.
Example	# Set the cable length to 40.5 meter (133 feet) on CT1/PRI interface T1 2/0.
	<Sysname> system-view
	[Sysname] controller t1 2/0
	[Sysname-T1 2/0] cable short 133ft

channel-set (CT1/PRI interface view)

Syntax channel-set set-numbertimeslot-list list [ speed { 56k 64k } ]

undo channel-set [ set-number]

View CT1/PRI interface view