
DMD2050E Univeral Satellite Modem Maintenance and Troubleshooting
MN-DMD2050E Revision 2 6–4
Indicates the Rx level has fallen below the input threshold level. {Pass/Fail,
Marked/Unmarked}
The Framing Unit cannot find the expected framing pattern. {Pass/Fail,
Unmasked/Masked}
The Framing Unit cannot find the expected framing pattern. {Pass/Fail,
Unmasked/Masked}
The Rx L-Band Synthesizer is not locked. This alarm flashes on
during certain parameter changes. If the alarm is on constantly,
there is a configuration problem within the modem.
{Pass/Fail,
Unmasked/Masked}
The Rx IF Synthesizer is not locked. This alarm flashes on
during certain parameter changes. If the alarm is on constantly,
there is a configuration problem within the modem
{Pass/Fail,
Unmasked/Masked}
Allows the user to disable or enable forcing of the Rx summary
alarm.
{DISABLED,
ENABLED}
The WAN Port is not operating. {Pass/Fail,
Unmasked/Masked}
6.3.3 Minor Tx Alarms
No Terrestrial Clock activity exists. {Pass/Fail,
Unmasked/Masked}
No Tx Data activity exists. {Pass/Fail,
Unmasked/Masked}
AIS is found in the Tx Data Stream. {Pass/Fail,
Unmasked/Masked}
In Drop Mode, the framing unit cannot find the exported
terrestrial framing pattern.
{Pass/Fail,
Unmasked/Masked}
In Drop Mode, the framing unit cannot find the exported
terrestrial framing pattern.
{Pass/Fail,
Unmasked/Masked}
Indicates if the Circular Redundancy Check is passing in PCM-
30C and PCM-31C Modes
{Pass/Fail,
Unmasked/Masked}
The Tx Input Data Stream Framing does not match the
selected Tx Terr Framing. An incorrect Tx Terr Framing is
selected. Incorrectly framed The Tx Input Data Stream is
framed incorrectly.
{Pass/Fail,
Unmasked/Masked}
Indicates that the clock resource has fallen. {Pass/Fail,
Unmasked/Masked}
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