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DMD2401 LB/ST L-Band Satellite Modem and ODU Driver
Exponent
<1>
Test 2047 BER
Exponent
<1>
Offset Frequency
Sign
<1>
BER/EbNo Status
<1>
Buffer Percent
Full
<1>
Input Level
<1>
Input Level State
<1>
Alarm 5
<1>
Insert Alarms
<1>
Insert Back
Alarm
<1>
AGC Voltage
Opcode: <240Ch>
<1>
Revision Number
<1>
Alarm 1
TM075 - Rev. 1.3
Byte 3 = Unsigned Binary Value Exponent
0 = Offset Frequency Pos, 1 = Offset Frequency Neg
Bit 0 = Raw BER and Corrected BER Status (1 = Valid)
Bit 1 = Test 2047 BER Status (1 = Valid)
Bits 2 - 3 = EbNo Status (0 = EbNo is Invalid, 1 = EbNo is
Valid, 2 = EbNo is Smaller Than Indicated Value,
3 = EbNo is Greater Than Indicated Value
Bits 4 - 7 = Reserved
Unsigned Binary Value Representing % Buffer Full (0 - 100 in
1% Steps)
Unsigned Binary Value in -1 dB Steps, Negative Sign Implied
Signed Binary (0 = Equal to, 1 = Greater Than, -1 = Less
Than Value in -1 dB Steps, Negative Sign Implied
Bit 0 = IBS Satellite Multiframe Loss
Bit 1 = IBS Satellite Frame Loss
Bit 2 = Spare
Bit 3 = IBS Alarm if BER < 10
Bit 4 = IBS Prompt Alarm
Bit 5 = IBS Service Alarm
Bits 6 - 7 = Spares
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
Bit 0 = Backward Alarm Received from Satellite
Bits 2 – 7 = Spares
In Hex, decimal point implied.
Query a Demodulator's Status
Query response
Decimal Point Implied
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
User Interfaces
-03
4-71
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