DMD2401/DMD2401L/DMD2401 IBS/IDR Satellite Modem
User Interfaces
TM065 - Rev. 3.3
4-79
<1>
<1>
Insert Back
Alarm
AGC Voltage
Bit 7 = CRC Calculation Fault
Bit 0 = Backward Alarm Received from Satellite
Bits 2 – 7 = Spares
In Hex, decimal point implied.
Opcode: <2406h>
Query a Demodulator’s Latched Alarms
Query response
<1>
<1>
<1>
<1>
<1>
<1>
Latched Alarm 1
Latched Alarm 2
Latched Alarm 3
Latched Alarm 4
Latched Comm.
Alarm 1
Latched Alarm 5
Bit 0 = Receive Processor Fault
Bit 1 = Signal Lock Fault
Bit 2 = Receive Satellite AIS Fault
Bit 3 = Rx AGC Input Level Fault
Bit 4 = Reed-Solomon Sync Fault
Bit 5 = Reed-Solomon Excessive Errors Fault
Bit 5 = Reed-Solomon Uncorrectable Word Fault
Bit 7 = Receive Forced Alarm
(0 = Pass, 1 = Fail)
Bit 0 = Buffer Underflow
Bit 1 = Buffer Overflow
Bit 2 = Buffer Under 10%
Bit 3 = Buffer Over 90%
Bit 4 = Receive FPGA fault
Bit 5 = Rx LNB Fault, LBST Only
Bits 6 -7 = Spares
(0 = Pass, 1 = Fail)
Bit 0 = IF Synthesizer Lock Detect Fault
Bit 1 = Rx Oversample PLL Lock Detect Fault
Bit 2 = Buffer Clock PLL Lock Detect Fault
Bit 3 = Viterbi Decoder Lock Fault
Bit 4 = Sequential Decoder Lock Fault
Bit 5 = Rx 2047 Test Pattern Lock Fault
Bit 5 = External Reference PLL Lock Fault
Bit 7 = Frame Sync/Multiframe Sync Fault
(0 = Pass, 1 = Fail)
Bit 0 = Buffer Clock Activity Detect Fault
Bit 1 = External BNC Activity Detect Fault
Bit 2 = Rx Satellite Clock Activity Detect Fault
Bit 3 = External Reference PLL Activity Fault
Bits 4 - 7 = Spares
(0 = Pass, 1 = Fail)
Bit 0 = -12 V Alarm
Bit 1 = +12 V Alarm
Bit 2 = +5 V Alarm
Bit 3 = Temperature Fault
Bit 4 = Interface FPGA Fault
Bit 5 = Battery Fault
Bit 6 = RAM/ROM Fault
Bit 7 = Spare
(0 = Pass, 1 = Fail)
Bit 0 = IBS/IDR Satellite Multiframe Sync Loss
Bit 0 = IBS/IDR Satellite Frame Sync Loss
Summary of Contents for DMD2401 IBS
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