HP 3162 - Manual (Page 88)

Monitoring and Testing
5-24 3162-A2-GB20-40 August 2000
Starting a Data Channel Loopback
The Data Channel Loopback command (DCLB) loops the data received from the
network interface, for all DS0 channels allocated to the selected port, back to the
network. The loopback occurs after the data passes through the port circuitry but
before it is sent out the data port.
496-14315-02
CSU DSU
NETWORK
INTERFACE
DTE
(DSX-1)
DCLB DCLB
PORT 1 PORT 2
ALL 1s ALL 1s
"
Procedure
To perform a Data Channel loopback:
1. From the Main Menu screen, select Test.
2. From the Test screen, select Sync Data Port Tests.
3. In the Port field (near the top of the screen), enter either 1 or 2 depending on
the synchronous data port that you want to test.
4. For the Data Channel Loopback command (under Local Loopbacks), select
Start.