Selt Termination - JDS Uniphase HST-3000 User Manual

Chapter 2 DSL Testing
Testing in bonded modem emulate mode
SELT
Termination
26
When it reaches show time, the HST-3000 gather statis-
tics.
2 Press the Display soft key to view different types of statis-
tics.
See "Modem emulate results" on page 56
on interpreting the results.
3 Press the Results soft key to clear the results or save
them to a text file.
For more information on saving results and managing the
files, see the HST-3000 Base Unit User's Guide.
All DSL results will remain in view until the modem is
started again or another test is selected.
4 To restart the test, press the DSL Stop/DSL Start soft key.
Pair 1 and pair 2 are started simultaneously.
Testing line quality is complete.
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 test sets the DSL modem to line termination mode,
putting the modem in an idle state and not transmitting.
HST-3000 xDSL Testing User's Guide
for information