3Com MSR 30 Fe1 clock, Fe1 cable long short, Undo fe1 cable, Syntax fe1 clock master slave

232CHAPTER 14: E1-F INTERFACE CONFIGURATION COMMANDS

<Sysname> display fe1 serial 2/0 Serial2/0

Basic Configuration:

E1 FRAMED

Physical type is FE1 - 75 OHM unbalanced

Frame-format is NONE,Line Code is HDB3,Source Clock is SLAVE Alarm State:

Receiver alarm state is None. Historical Statistics:

Last clearing of counters: Never

Data in current interval (19349 seconds elapsed):

129 Loss Frame Alignment Secs, 0 Framing Error Secs,

0CRC Error Secs, 0 Alarm Indication Secs, 129 Loss-of-signals Secs,

0Code Violations Secs, 0 Slip Secs, 0 E-Bit error Secs.

Table 19 Description on the fields of the display fe1 serial command

Field	Description
E1 FRAMED	Operating mode, framed or unframed. In this sample output, it is
	framed
Physical type	Interface type (75-ohm unbalanced/120-ohm balanced)
Frame-format	Framing format (CRC4/no-CRC4)
Line Code	Line code format: AMI or HDB3.
Source Clock	Source clock: master for internal clock and slave for line clock
Alarm State	Alarm information

fe1 cable

Syntax	fe1 cable { long short }
	undo fe1 cable
View	E1-F interface view
Parameter	long: Supports long-haul cables.
	short: Supports short-haul cables.
Description	Use the cable command to set the cable length for an E1-F interface.
	Use the undo cable command to restore the default.
	By default, the long keyword applies.
Example	# Set the cable length type on E1-F interface Serial 2/0 to short.
	<Sysname> system-view
	[Sysname] interface serial 2/0
	[Sysname-Serial2/0] fe1 cable short

fe1 clock

Syntax fe1 clock { master slave }