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Model 3196RC T-DAC User Manual
5 • Troubleshooting and maintenance
T1/E1 port test modes
The 3196RC offers a number of diagnostics tools to test operation and performance of the T1/E1 ports and
line. Diagnostics include DSX1 payload loop and DSX1 line loop.
DSX1 payload loop (dsx1PayloadLoop)
When activated, the received signal at the selected T1/E1 port, will be looped through the 3196RC (see
figure
55). Typically the received signal is looped back for retransmission after it has passed through the
device's framing function (framing is terminated and then regenerated).
Framer
T1/E1 port
3196RC
Figure 55. Payload loopback
To activate payload loop, do the following:
Modify Configuration
1. Click on the
link of the T1/E1 port to be placed under test
2. Locate the
drop down menu
Loopback Configuration
3. Select
Payload Loop
and click on the
button on the right.
Submit Query
To deactivate payload loop, set the
Loopback Configuration
drop down menu to
NoLoop
.
Basic iDSL and T1/E1 test modes
77
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