Diagnostic Selt Test Command; Diagnostic Loopback E1 Commands - ZyXEL Communications MSC1024G Series User Manual

Chapter 26 diagnostic Commands

26.7.2 diagnostic selt test Command

Syntax:
diagnostic selt test <slot-port>
This command starts the Single End Loop Test (SELT) on the specified port on the line card.
This test checks the distance to the subscriber's location.
The port must have an open loop. There cannot be a DSL device, phone, fax
machine or other device connected to the subscriber's end of the telephone
line.

26.8 diagnostic loopback e1 Commands

Use these commands to perform a physical loopback test on an E1 port.
26.8.1 diagnostic loopback e1 Commands
Syntax:
diagnostic loopback e1 set <slot-port> <lpbkmode>
where
lpbkmode = 0~3
0 (None LPBK)
1 (Line LPBK)
2 (In-ward LPBK)
3 (Payload LPBK)
This command specifies the loopback testing mode on an E1 port.
Syntax:
diagnostic loopback e1 show <slot-port>
This command displays an E1 port's physical loopback testing mode.
The following example performs an E1 line loopback test on port 1 of slot 2 and then displays
the loopback testing mode.
ras> diagnostic loopback e1 set 2-1 1
ras> diagnostic loopback e1 show 2-1
slot-port
--------- --------------
2- 1
642
stop the previous E1 loopback test
=
= return all physical or electrical signals received from the remote
connected device
= force all transmitted data to return to this port
return all data received from the remote connected device
=
E1 LPBK mode
Line LPBK
MSC1000G/1024G/1224G Series User's Guide