Comtech EF Data SDM-9000, Installation And Operation Manual

Page: 223 / 256

SDM-9000 Satellite Modem Remote Control Operation
Rev. 4 B–5
Differential
Encoder
Enable Command:
Response:
Status:
Response:
<add/DENC_xxx'cr'
>add/DENC_xxx'cr''lf']
<add/DENC_'cr'
>add/DENC_xxx'cr''lf']
Where: xxx = ON or OFF.
Modulator
Reference
Clock Command:
Response:
Status:
Response:
<add/MRC_xxxxx'cr'
>add/MRC_xxxxx'cr''lf']
<add/MRC_'cr'
>add/MRC_xxxxx'cr''lf']
Where: xxxxx = INT, EXT5 (5 MHz), EXT10 (10 MHz), or
EXT20 (20 MHz).
Note: If the High Stability Internal 5 MHz/External Divider
Option is not installed, only 'INT' will be allowed.
Reed-
Solomon
Encoder
Enable Command:
Response:
Status:
Response:
<add/RSEN_xxx'cr'
>add/RSEN_xxx'cr'
RF_OFF'cr''lf']
<add/RSEN_'cr'
>add/RSEN_xxx'cr''lf']
Where: xxx = ON or OFF.
Notes:
1. Setting the Reed-Solomon Encoder turns OFF the RF
transmitter.
2. If the Reed-Solomon Option is not installed, only OFF
will be allowed.
Modulator
Spectrum
Rotation Command:
Response:
Status:
Response:
<add/MSR_xxxx'cr'
>add/MSR_xxxx'cr''lf']
<add/MSR_'cr'
>add/MSR_xxxx'cr''lf']
Where: xxxx = NRM (normal spectrum) or INV (inverted
spectrum).
B.3.2 Demodulator
Demodulato
r Frequency Command:
Response:
Status:
Response:
<add/DF_nnn.nnnn'cr'
>add/DF_nnn.nnnn'cr''lf']
<add/DF_'cr'
>add/DF_nn.nnnn'cr''lf']
Where: nnn.nnnn = Frequency in MHz, 50.0000 to 180.0000,
in 2.5 kHz steps.
Demodulato
r Rate
Preset
Assignment Status:
Response: <add/ADRx_'cr'
>add/ADRx_nnnnn_mmmmm.mm
m'cr''lf'] Where:
x = A, B, C, or D (preset designator).
nnnnn = One of the following decoder rates:
1/2 (QPSK 1/2)
3/4 (QPSK 3/4)
7/8 (QPSK 7/8)
16Q34 (16QAM 3/4)
16Q78 (16QAM 7/8)
8P23 (8PSK 2/3)
8P56 (8PSK 5/6)
N/A (Not Assigned)
mmmmm.mmm = Data rate in kHz.
Note: If the filter is calibrated for the Reed-Solomon, '+RS' will
be appended to the code rate. Example: 3/4+RS_44736.0.
Demodulato
r Rate
Preset
Selection Command:
Response:
Status:
<add/SDRx_'cr'
>add/SDRx_'cr''lf']
See DR command.
Where: x = A, B, C, or D (preset designator).
Note: If the filter is calibrated for the Reed-Solomon, '+RS' will
be appended to the code rate. Example: 3/4+RS_44736.0.
Differential
Decoder
Enable Command:
Response:
Status:
Response:
<add/DDEC_xxx'cr'
>add/DDEC_xxx'cr''lf']
<add/DDEC_'cr'
>add/DDEC_xxx'cr''lf']
Where: xxx = ON or OFF.