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Managing DSL
58 MM701F User Manual
Testing the DSL Line
The MM701F has embedded diagnostics used for detecting line problems or as an aid in
troubleshooting line related technical problems. These programs are used by technical support
personnel to diagnose problems and determine the appropriate solutions.
1 From the
Main Menu, select DSL to access the ADSL Menu.
2 Select
Hardware/Line Diagnostics to access the ADSL Hardware/Line Diagnostics page.
3 Select a diagnostic test:
•
SpectrumREVERB continuously sends a R-REVERB signal for the CO to measure the
upstream wideband power. This adjusts the CO transmit power level, its receiver gain,
synchronize its receiver, and train its equalizer.
•
SpectrumMEDLEY continuously sends a R-MEDLEY signal (pseudo-random signal) for
the CO to train its frequency domain equalizer and to estimate upstream SNR.
• SpectrumPILOT continuously sends a R-PILOT signal (single frequency sinusoid) for
the CO to synchronize with the modem.
• None specifies no testing.
These diagnostic programs have significance only to technical support personnel and are not
discussed further in this manual.