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User Interfaces
Daughter Card
Fault
<1>
Transmit IDR
Backward Alarms
<1>
Control Mode
<1>
Drop Alarm
Status
<1>
Drop Backward
Alarm Status
Opcode: <240Bh>
<1>
Revision Number
<1>
Alarm 1 Major
Alarm
<1>
Alarm 2 Minor
Alarm
4-48
DMD2401 LB/ST L-Band Satellite Modem and ODU Driver
Note: The following byte applies only if an asynchronous
interface card, IDR or IBS interface card is installed, and
the AUPC option is installed and the AUPC is enabled. If
not, ignore this byte.
0 = Daughter Card OK
1 = Daughter Card Faulted
The following byte applies only if an IDR or IBS interface
card is installed and the modem is in IDR mode. If not,
ignore this byte.
Bit 0 = Backward Alarm 1
Bit 1 = Backward Alarm 2
Bit 2 = Backward Alarm 3
Bit 3 = Backward Alarm 4
Bits 4 – 7 = Spare
(0 = Not Transmitted, 1 = Transmitted)
0 = Front Panel, 1 = Terminal, 2 = Computer
Bit 0 = Terrestrial Frame Lock Fault (all modes)
Bit 1 = Terrestrial Multiframe Lock Fault (PCM-30 and
PCM-30C only)
Bit 2 = Terrestrial CRC Lock Fault (PCM-30C and PCM-31C
only)
Bit 3 = Terrestrial Yellow Alarm Received (T1 only)
Bit 4 = Terrestrial FAS Alarm Received (E1 only)
Bit 5 = Terrestrial MFAS Alarm Received (PCM-30 and PCM-
30C only)
Bit 6 = Loss of T4errestrial Signaling (reported by DSP)
Bit 7 = Spare
Bit 0 = Backward Alarm Received from Drop Terrestrial
Bits 2 – 7 = Spares
Query a Modulator's Status
Query Response
Decimal Point Implied
Bit 0 = Transmit Processor Fault
Bit 1 = Transmit Output Power Level Fault
Bit 2 = Transmit Oversample PLL Lock Fault
Bit 3 = Composite Clock PLL Lock Fault
Bit 4 = IF Synthesizer Lock Fault
Bit 5 = Transmit FPGA Configuration Alarm Fault
Bit 6 = Transmit Forced Alarm
Bit 7 = External Reference PLL Lock Fault
(0 = Pass, 1 = Fail)
Bit 0 = Terrestrial Clock Activity Detect Fault
Bit 1 = Internal Clock Activity Detect Fault
Bit 2 = Tx Sat Clock Activity Detect Fault
Bit 3 = Tx Data Activity Detect Fault
TM075 – Rev. 1.3
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