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Monitoring and Testing
4-20
3162-A2-GB20-30
March 1999
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
CSUDSU
NETWORK
INTERFACE
DTE
(DSX-1)
DCLBDCLB
PORT 1PORT 2
ALL 1sALL 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.