Alarm Faults - Comtech EF Data DMD1050TS Installation And Operation Manual

5.2.1 Alarm Faults

5.2.1.1 Major Tx Alarms
Alarm
FPGA CFG
DSP CFG
SCT Clock PLL
SYM Clock PLL
LB Synth
PLL
Ethernet WAN
TRANSEC Ready
5.2.1.2 Major Rx Alarms
Alarm
FPGA CFG
DSP CFG
SIGNAL LOCK
FRAME LOCK
MULTIFRAME LOCK
LB SYNTH PLL
Ethernet WAN
5.2.1.3 Minor Tx Alarms
Alarm
TERR CLK ACT
TERR DATA ACT
TX TERR AIS
TX DVB FRAME
LOCK
Clock Src Fallback
TPC Conflict Chk
Maintenance and Troubleshooting
Shows a transmit FPGA hardware failure
Shows a transmit FPGA failure
Shows that the Tx SCT Clock PLL is not locked. This alarm flashes during certain
parameter changes. A steady display shows a problem in the modem configuration.
Shows that the Tx Symbol Clock PLL is not locked. This alarm flashes during certain
parameter changes. A steady display shows a problem with the incoming clock to the
modem (SCTE).
Shows that the Tx L-Band Synthesizer is not locked. This alarm flashes during certain
parameter changes. A steady display shows a configuration problem in the modem.
Shows that the WAN Port is down
Shows that the TRANSEC Security Module has not indicated it is ready for data
Shows a receive FPGA hardware failure
Shows a receive DSP failure
Shows that the demod is unable to lock to a signal
Shows that the Framing Unit is unable to find the expected framing pattern
Shows that the Framing Unit is unable to find the expected framing pattern
Shows that the Rx L-Band Synthesizer is not locked. This alarm flashes during certain
parameter changes. A steady display shows a problem in the modem configuration.
Shows that the WAN Port is down
Shows no Terrestrial Clock activity
Shows no Tx Data activity
Shows that AIS has been detected in the Tx Data Stream
Shows that the Tx Input Data Stream Framing does not match the selected Tx Terr
Framing. Incorrect Tx Terr Framing is selected. Incorrectly framed Tx Input Data Stream
exists.
Shows the SCTE clock has fallen back to internal SCT
Shows there is a TPC mismatch
5–2
DMD1050TS Satellite Modem Board
Possible Cause
Possible Cause
Possible Cause
Revision 1
MN-DMD1050TS