Comtech EF Data DD2401 User Manual

Page 51

DD2401 Satellite Demodulator

User Interfaces

MN-DD2401 - Rev. G

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Alarm 5

Backward Alarms

Latched Alarm 5

Control Mode

Insert Alarms

Insert Back Alarm

AGC Voltage

Symbol Rate

in -1 dB Steps, Negative Sign Implied)

Bit 0 = IBS/IDR Satellite Multiframe Sync Loss
Bit 1 = IBS/IDR Satellite Frame Sync Loss
Bit 2 = Spare
Bit 3 = IBS BER Alarm
Bit 4 = IBS Prompt Alarm
Bit 5 = IBS Service Alarm
Bit 6 = Turbo Codec Lock Fault
Bit 7 = Spare
(0 = Pass, 1 = Fail)

Bit 0 = IBS Backward Alarm or IDR Backward Alarm 1
Bit 1 = IDR Backward Alarm 2
Bit 2 = IDR Backward Alarm 3
Bit 3 = IDR Backward Alarm 4
Bits 4 - 7 = Spares
(0 = Pass, 1 = Fail)

Bit 0 = IBS/IDR Satellite Multiframe Sync Loss
Bit 1 = IBS/IDR Satellite Frame Sync Loss
Bit 2 = Spare
Bit 3 = IBS BER Alarm
Bit 4 = IBS Prompt Alarm
Bit 5 = IBS Service Alarm
Bit 6 = Turbo Codec Lock Fault
Bit 7 = Spare
(0 = Pass, 1 = Fail)

0 = Front Panel, 1 = Terminal, 2 = Computer RLLP

Bit 0 = Frame Lock Fault
Bit 1 = Multiframe Lock Fault
Bit 2 = CRC Lock Fault. Valid only in T1-ESF and E1 – CRC enabled
Bit 3 = T1 Yellow Alarm Received
Bit 4 = E1 FAS Alarm Received
Bit 5 = E1 MFAS Alarm Received
Bit 6 = E1 CRC Alarm Received
Bit 7 = CRC Calculation Fault
(0 = Pass, 1 = Fail)

Bit 0 = Backward Alarm Received from Satellite
Bits 1 – 7 = Spares
(0 = Pass, 1 = Fail)

In Hex, decimal point implied.

Binary value, 1 sps steps

Opcode: <2406h>

Query a Demodulator’s Latched Alarms

Query response

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Latched Alarm 1

Bit 0 = Receive Processor Fault
Bit 1 = Signal Lock Fault
Bit 2 = Receive Satellite AIS Fault
Bit 3 = Rx AGC Input Level Fault