3 minor tx alarms – Comtech EF Data DMD-2050E User Manual
Page 166
DMD2050E Univeral Satellite Modem
Maintenance and Troubleshooting
MN-DMD2050E Revision 2
6–4
Alarm
Description
Status
INPUT LVL THRESH
Indicates the Rx level has fallen below the input threshold level.
{Pass/Fail,
Marked/Unmarked}
FRAME LOCK
The Framing Unit cannot find the expected framing pattern.
{Pass/Fail,
Unmasked/Masked}
MULTIFRAME LOCK
The Framing Unit cannot find the expected framing pattern.
{Pass/Fail,
Unmasked/Masked}
LB SYNTH PLL
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}
IF SYNTH PLL
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}
Forced Alarm
Allows the user to disable or enable forcing of the Rx summary
alarm.
{DISABLED,
ENABLED}
Ethernet WAN
The WAN Port is not operating.
{Pass/Fail,
Unmasked/Masked}
6.3.3 Minor Tx Alarms
Alarm
Description
Status
TERR CLK ACT
No Terrestrial Clock activity exists.
{Pass/Fail,
Unmasked/Masked}
TERR DATA ACT
No Tx Data activity exists.
{Pass/Fail,
Unmasked/Masked}
TX TERR AIS
AIS is found in the Tx Data Stream.
{Pass/Fail,
Unmasked/Masked}
DnI FRAME LOCK
In Drop Mode, the framing unit cannot find the exported
terrestrial framing pattern.
{Pass/Fail,
Unmasked/Masked}
DnI M-FRAME LOCK
In Drop Mode, the framing unit cannot find the exported
terrestrial framing pattern.
{Pass/Fail,
Unmasked/Masked}
DROP CRC
Indicates if the Circular Redundancy Check is passing in PCM-
30C and PCM-31C Modes
{Pass/Fail,
Unmasked/Masked}
TX DVB FRAME LOCK
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}
TX CLK SRC FALLBK
Indicates that the clock resource has fallen.
{Pass/Fail,
Unmasked/Masked}