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User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
4-98 TM051 – Rev. 5.8
<1>
<1>
Mod Lathed Alarm 2
Latched Drop Status
in RCS10/10L mode
Bit 5 = High Stability reference PLL activity. (Not Latched),
reserved in RCS10/10L mode
Bit 6 = Rx clock fallback. (Not Latched)
Bit 7 = Eb/No Threshold Fault. (Not Latched)
Bit 0 = Terrestrial clock activity detect. 1 = Fail
Bit 1 = Internal clock activity detect. 1 = Fail
Bit 2 = Tx Sat clock activity detect. 1 = Fail
Bit 3 = Tx data activity detect. 1 = Fail
Bit 4 = Tx data AIS detect. 1 = Fail
Bit 5 = Tx clock fallback. 1 = Fail
Bits 6 & 7 = Spares
Bit 0 = Frame lock fault. 1 = Fail
Bit 1 = Multiframe lock fault. 1 = Fail
PCM30 and PCM30C. 1 = Fail
Bit 2 = CRC lock fault. Valid in T1 ESF and E1, CRC enabled.
1 = Fail
Bits 3-7 (Not latched)I
Opcode: <240Ah> Query a modem’s current alarms
Query Response
<1>
<1>
<1>
<1>
Mod Alarm 1
Mod Alarm 2
Drop Status Fault
Demod Alarm 1
Bit 0 = Transmit processor fault. 1 = Fail
Bit 1 = Transmit output power level. 1 = Fail
Bit 2 = Transmit Oversample PLL lock. 1 = Lock
Bit 3 = Composite clock PLL lock. 1 = Lock
Bit 4 = IF synthesizer lock. 1 = Lock
Bit 5 = IDR 96 PLL lock. 1 = Lock
Bit 6 = RS FIFO fault. 1 = Fail
Bit 7 = Mod Summary fault. 1 = Fail
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 = Fail
Bits 6 and 7 = Spares
Bit 0 = Frame lock fault. 1 = Fail
Bit 1 = Multiframe lock Fault. Valid in E1 PCM30 and PCM30C.
1 = Fail
Bit 2 = CRC lock fault. Valid in T1ESF, and E1 CRC enabled. 1
= Fail
Bit 3 = T1 yellow alarm received. 1 = Received
Bit 4 = E1 FAS alarm received. 1 = Received
Bit 5 = E1 MFAS alarm received. Not valid in FAS mode. 1 =
Received
Bit 6 = E1 CRC alarm received. 1 = Received
Bit 7 = CRC calculation error. 1 = Fail
Bit 0 = Receive processor fault. 1 = Fail
Bit 1 = Carrier Loss. 0 = pass. 1 = Fail
Bit 2 = Multiframe Sync Loss 0 = pass. 1 = Fail
Bit 3 = Frame Sync Loss 0 = pass. 1 = Fail