Comtech EF Data DMD1050TS, Инструкция по установке и эксплуатации

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DMD1050TS Satellite Modem Board
Revision 1
Maintenance and Troubleshooting 5–2 MN-DMD1050TS
5.2.1 Alarm Faults
5.2.1.1 Major Tx Alarms
Alarm Possible Cause
FPGA CFG Shows a transmit FPGA hardware failure
DSP CFG Shows a transmit FPGA failure
SCT Clock PLL 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.
SYM Clock PLL 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).
LB Synth
PLL
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.
Ethernet WAN Shows that the WAN Port is down
TRANSEC Ready Shows that the TRANSEC Security Module has not indicated it is ready for data
5.2.1.2 Major Rx Alarms
Alarm Possible Cause
FPGA CFG Shows a receive FPGA hardware failure
DSP CFG Shows a receive DSP failure
SIGNAL LOCK Shows that the demod is unable to lock to a signal
FRAME LOCK Shows that the Framing Unit is unable to find the expected framing pattern
MULTIFRAME LOCK Shows that the Framing Unit is unable to find the expected framing pattern
LB SYNTH PLL 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.
Ethernet WAN Shows that the WAN Port is down
5.2.1.3 Minor Tx Alarms
Alarm Possible Cause
TERR CLK ACT Shows no Terrestrial Clock activity
TERR DATA ACT Shows no Tx Data activity
TX TERR AIS Shows that AIS has been detected in the Tx Data Stream
TX DVB FRAME
LOCK
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.
Clock Src Fallback Shows the SCTE clock has fallen back to internal SCT
TPC Conflict Chk Shows there is a TPC mismatch