Comtech EF Data SNM-1000 User Manual
Page 152

SNM-1000 Node Control Modem
Revision 3
Remote Control Operation
MN/SNM1000.IOM
A–4
Set Modulator Power
Offset
Command:
Response:
Status:
Response:
<channel_no> MC MPO_snn.n'cr'
<channel_no> MPO_snn.n'cr''lf']
<channel_no> MC MPO_'cr'
<channel_no> MPO_snn.n'cr''lf']
Where: snn.n = +99.0 to -99.0, in 0.1 dB increments.
Note: The modulator power offset is added to the
nominal power level to adjust the transmit power range.
Set Modulator Output
Power Level
Command:
Response:
Status:
Response:
<channel_no> MC MOP_snnn.n'cr'
<channel_no> MOP_snnn.n'cr''lf']
<channel_no> MC MOP_'cr'
<channel_no> MOP_snnn.n'cr''lf']
Where: snnn.n = -30.0 to +5.0, in 0.1 steps (nominal
range in dBm).
Note: The nominal power range is modified relative to
the value specified by the modulator power offset
(MPO_).
Scrambler Enable
Command:
Response:
Status:
Response:
<channel_no> MC SE_xxx'cr'
<channel_no> SE_xxx'cr''lf']
<channel_no> MC SE_'cr'
<channel_no> SE_xxx'cr''lf']
Where: xxx = ON or OFF.
Differential Encoder
Enable
Command:
Response:
Status:
Response:
<channel_no> MC DENC_xxx'cr'
<channel_no> DENC_xxx'cr''lf']
<channel_no> MC DENC_'cr'
<channel_no> DENC_xxx'cr''lf']
Where:
In TX Burst mode, xxx = OFF.
In TX Continuous mode, xxx = ON or OFF.
Modulator Type
Command:
Response:
Status:
Response:
<channel_no> MC MT_xxxx'cr'
<channel_no> MT_xxxx'cr''lf']
<channel_no> MC MT_'cr'
<channel_no> MT_xxxx'cr''lf']
Where:
In TX Burst mode,
xxxx = INTL (INTELSAT Open Network).
In TX Continuous mode,
xxxx = INTL (INTELSAT Open Network), EFD
(Comtech EF Data Closed Network), CSC
(Comstream Closed Network), FDC (Fairchild
Closed Network), or SDM51 (SDM51 Compatible).
Modulator Encoder
Type
Command:
Response:
Status:
Response:
<channel_no> MC MET_xxx'cr'
<channel_no> MET_xxx'cr''lf']
<channel_no> MC MET_'cr'
<channel_no> MET_xxx'cr''lf']
Where:
In TX Burst mode,
xxx = VIT (K-7 Viterbi Encoder).
In TX Continuous mode,
xxx = VIT (K-7 Viterbi Encoder)
SEQ (Sequential Encoder)
TUR (Turbo)
Modem Reference
Clock
Command:
Response:
Status:
Response:
<channel_no> MC MRC_xxxxx'cr'
<channel_no> MRC_xxxxx'cr''lf']
<channel_no> MC MRC_'cr'
<channel_no> MRC_xxxxx'cr''lf']
Where: xxxxx = INT (INTERNAL), EXT1 (EXTERNAL 1
MHz), EXT5 (EXTERNAL 5 MHz), EXT10 (EXTERNAL
10 MHz), EXT20 (EXTERNAL 20 MHz), OUT10
(OUTPUT 10 MHz).
Modulator Spectrum
Rotation
Command:
Response:
Status:
Response:
<channel_no> MC MSR_xxx'cr'
<channel_no> MSR_xxx'cr''lf']
<channel_no> MC MSR_'cr'
<channel_no> MSR_xxx'cr''lf']
Where: xxx = NRM (normal spectrum), INV (inverted
spectrum).
Reed-Solomon
Encoder Enable
Command:
Response:
Status:
Response:
<channel_no> MC RSEN_xxx'cr'
<channel_no> RSEN_xxx'cr'lf']
<channel_no> MC RSEN_'cr'
<channel_no> RSEN_xxx'cr'lf']
Where: xxx = ON or OFF.