Comtech EF Data DMD20 User Manual
Page 87

DMD20/DMD50/DMD2050/DMD2050E/DMD1050/OM20 Remote Protocol
Remote Operations
MN-DMDREMOTEOP Revision 9
1–77
<1>
Mod Alarm 1
Bit 0 = Transmit FPGA/Processor Fault, 1 = Fail
Bit 1 = Drop DSP, 1 = Fail
Bit 2 = Transmit Symbol Clock PLL Lock, 1 = Lock
Bit 3 = Reserved
Bit 4 = IF/L-Band Synthesizer Lock, 1 = Lock
Bits 5 & 6 = Reserved
Bit 7 = Mod Summary Fault, 1 = Fail
<1>
Mod Alarm 2
Bit 0 = Terrestrial Clock Activity Detect, 1 = Activity
Bit 1 = Internal Clock Activity Detect, 1 = Activity
Bit 2 = Tx Sat Clock Activity Detect, 1 = Activity
Bit 3 = Tx Data Activity Detect, 1 = Activity
Bit 4 = Terrestrial AIS. Tx Data AIS Detect, 1 = AIS Fail
Bit 5 = Tx Clock Fallback, 1 = Clock Fallback
Bit 6 = DVB Frame Lock Fault, 1 = Fail
Bit 7 = TPC Conflict Check, 1 = Fail
<1>
Drop Status Fault
Bit 0 = Frame lock fault, 1 = Fail
Bit 1 = Multiframe lock Fault. Valid in E1 PCM-30 and
PCM-30C, 1 = Fail
Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC
enabled, 1 = Fail
Bits 3 – 7 = Reserved
<1>
Demod Alarm 1
Bit 0 = Receive FPGA/Processor Fault, 1 = Fail
Bit 1 = Carrier Loss, 1 = Fail
Bit 2 = Multiframe Sync Loss, 1 = Fail
Bit 3 = Frame Sync Loss, 1 = Fail
Bit 4 = IBS BER Alarm, 1 = Fail
Bit 5 = Satellite AIS, 1 = Fail
Bit 6 = Rx Data Activity, 1 = Activity
Bit 7 = Rx AGC Level, 1 = Fail
<1>
Demod Alarm 2
Bit 0 = Buffer Underflow, 1 = Underflow
Bit 1 = Buffer Overflow, 1 = Overflow
Bit 2 = Buffer Under 10%, 1 = Fail
Bit 3 = Buffer Over 90%, 1 = Fail
Bit 4 = RS Decoder Lock Fault, 1 = Fail
Bit 5 = RS De-Interleaver Fault, 1 = Fail
Bit 6 = RS Decoder Uncorrectable Word, 1 = Fail
Bit 7 = Demod Summary Fault, 1 = Fail
<1>
Demod Alarm 3
Bit 0 = Rx L-Band Synthesizer Lock, 1 = Lock
Bit 1 = Insert DSP Config, 1 = Fail
Bit 2 = Buffer Clock PLL Lock Detect, 1 = Lock
Bit 3 = Viterbi Decoder Lock, 1 = Lock
Bit 4 = Sequential Decoder Lock, 1 = Lock
Bit 5 = Rx Test Pattern Lock, 1 = Lock
Bit 6 = External Reference PLL Lock, 1 = Lock
Bit 7 = Rx Carrier Level, 1 = Fail
<1>
Demod Alarm 4
Bit 0 = Buffer Clock Activity Detect, 1 = Activity
Bit 1 = External BNC Activity Detect, 1 = Activity
Bit 2 = Rx Satellite Clock Activity Detect, 1 = Activity
Bit 3 = Insert Clock Activity Detect, 1 = Activity
Bit 4 = External Reference Activity Detect, 1 = Activity
Bit 5 = High Stability Reference PLL Activity, 1 =
Activity
Bit 6 = Reserved
Bit 7 = Low EbNo, 1 = Fail