Comtech EF Data DD2401 - Manual (Page 48)

User Interfaces DD2401 Satellite Demodulator
4- 24 MN-DD2401 - Rev. G
*<1>
<1>
<4>
Insert Back Alarm
AGC Voltage
Symbol Rate
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: <240Ch>
Query a Demodulator’s Status
Query response
<1>
<1>
<1>
<1>
<1>
Revision Number
Alarm 1
Alarm 2
Alarm 3
Alarm 4
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
Bit 6 = 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 Configuration 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 6 = 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
Bit 4 = High Stability Activity Detect Fault
Bit 5 = High Stability PLL Fault