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Comtech EF Data SNM-1000 User Manual

Page 152

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SNM-1000 Node Control Modem

Revision 3

Remote Control Operation

MN/SNM1000.IOM

A–4

Set Modulator Power
Offset

Command:
Response:

Status:
Response:

MC MPO_snn.n'cr'
MPO_snn.n'cr''lf']

MC MPO_'cr'
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:

MC MOP_snnn.n'cr'
MOP_snnn.n'cr''lf']

MC MOP_'cr'
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:

MC SE_xxx'cr'
SE_xxx'cr''lf']

MC SE_'cr'
SE_xxx'cr''lf']

Where: xxx = ON or OFF.

Differential Encoder
Enable

Command:
Response:

Status:
Response:

MC DENC_xxx'cr'
DENC_xxx'cr''lf']

MC DENC_'cr'
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:

MC MT_xxxx'cr'
MT_xxxx'cr''lf']

MC MT_'cr'
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:

MC MET_xxx'cr'
MET_xxx'cr''lf']

MC MET_'cr'
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:

MC MRC_xxxxx'cr'
MRC_xxxxx'cr''lf']

MC MRC_'cr'
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:

MC MSR_xxx'cr'
MSR_xxx'cr''lf']

MC MSR_'cr'
MSR_xxx'cr''lf']

Where: xxx = NRM (normal spectrum), INV (inverted
spectrum).

Reed-Solomon
Encoder Enable

Command:
Response:

Status:
Response:

MC RSEN_xxx'cr'
RSEN_xxx'cr'lf']

MC RSEN_'cr'
RSEN_xxx'cr'lf']

Where: xxx = ON or OFF.