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Running a VDSL quick test
SELT Termination
Run a VDSL quick test when you want to connect to the far end of the circuit
and gather statistics.
To run a VDSL quick test
1 If the tester is not on, press the Power key to turn it on.
2 Connect a cable from the line to the DSL jack on the right side of the VDSL
Services Tester.
3 Select VDSL TEST, and then VDSL RESULTS.
The VDSL SUMMARY results screen appears.
The modems begin to synchronize. Modem synchronization may take a
few minutes.
After the modems have achieved synchronization, statistics are gathered
and displayed.
For more information on the results, see
Single End Loop Test (SELT) is used test a copper loop when there is no
equipment installed at the far end. It is typically used for pre-qualification, that
is, testing whether a loop is capable of supporting DSL service. In some cases,
SELT testing is aided by placing a termination at the far end of the line. This
tests sets the VDSL modem to provide a line termination where the modem is
idle and not transmitting.
To enable SELT Termination
1 If the tester is not on, press the Power key to turn it on.
2 Connect a cable from the line to the DSL jack on the right side of the VDSL
Services Tester.
3 Select VDSL TEST, and then SELT TERM.
After initializing the modem, the SELT verification screen is displayed.
The timer indicates the time until the next restart.
The modem must periodically reset (every 3 minutes) to maintain the
termination.
The far end technician can continue testing.
SmartClass VDSL Tester User's Guide
Chapter 4 VDSL Testing
Running a VDSL quick test
Chapter 5 "Interpreting Test
Results".
17
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