Comtech EF Data SDM-2020, Installation And Operation Manual

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Remote Control Operation SDM-2020 Satellite Demodulator
B–18 Rev. 3
16 Demodulator Spectrum Rotation
(ref. 'DSR_' command).
p16 = n, where 'n' is '0' (NRM), '1' (INV).
17
18 to 20
21
22
Bit Error Rate Threshold
(ref. ‘BERT_’command)
Reserved
Interface ID
(ref. ‘INID_’command)
Interface Clock Mode
(ref. ‘ICLK_’command)
Note: Parameters 23 to 32 are
assigned to the individual
interface.
p17 = xxxx, BER threshold
p21 = ‘xxxxxxxxx’, where xxxxxxxxx = interface type
p22 = n, where n = (‘0’ Serial, or ‘1’ = Parallel)
Bulk
Consol.
Status
Faults Command:
Response: <add/BCSF_'cr'
>add/BCSF_abcdefgh'cr''lf'] This command causes all demodulator fault status to be
returned. To reduce the length of the response, fault status is
embedded into the bit structure of the characters that are
returned. Faults are indicated by a binary 1 in the designated
bit position. Additional fault status of new options and features
will be appended to the end or use existing reserved bits.
Character 'a': demodulator fault status character 1.
Bit 6 = 1 always.
Bit 5 = demodulator module fault.
Bit 4 = Carrier detect status (0 for decoder lock).
Bit 3 through Bit 0 = Binary representation.
(0 to 10) of the number of demodulator stored faults.
Character 'b': demodulator fault status character 2.
Bit 6 = 1 always.
Bit 5 = IF Synthesizer Lock.
Bit 4 = reserved.
Bit 3 = I Channel.
Bit 2 = Q Channel.
Bit 1 = reserved.
Bit 0 = BER threshold.
Character 'c': demodulator fault status character 3.
Bit 6 = 1 always.
Bit 5 = Configuration.
Bit 4 = reserved.
Bit 3 = reserved.
Bit 2 = reserved.
Bit 1 = reserved.
Bit 0 = reserved.
Character 'd': Interface Receive side faults character 1.
Bit 6 = 1 always.
Bit 5 = reserved.
Bit 4 = reserved.
Bit 3 through Bit 0 = Binary representation.
(0 to 10) of the number of interface Receive side stored
faults.
Character 'e': Interface Receive side faults character 2.
Bit 6 = 1 always.
Bit 5 = Frame Sync Lock.
Bit 4 = Reserved.
Bit 3 = Data Stable/AIS.
Bit 2 = Receive Synthesizer PLL Lock.
Bit 1 = Receive FIFO.
Bit 0 = Interface module fault.
Character 'f': Interface Receive side faults character 3.