Mocomtech CDM-570 User Manual

Page 247

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CDM-570/570L Satellite Modem with Optional IP Module

Revision 4

Serial Remote Control

MN/CDM570L.IOM

13–13

Parameter

Type

Command

(Instruction

Code and

Qualifier)

Arguments

for Command

or Response

to Query

Description of Arguments

Response to

Command

Query

(Instruction

Code and

Qualifier)

Response to Query

Rx FEC Code
Rate

RCR=

1 byte, value
of 0 thru 7

Command or Query.
Rx FEC Code Rate, where:
0 = Rate 5/16 (Turbo Only)
1 = Rate 21/44 (Turbo Only)
2 = Rate 1/2
3 = Rate 2/3 (8-PSK TCM or 8-QAM only)
4 = Rate 3/4
5 = Rate 7/8
6 = Rate 0.95 (Turbo Only)
7 = Rate 1/1 (Uncoded or No FEC)

Depending on FEC and demodulation type, not all of these
selections will be valid.

Example: RCR=1 (selects Rate 3/4)

RCR=
RCR?
RCR*
RCR#
RCR+

RCR?

RCR=x
(see description of
arguments)

Rx Data Rate

RDR=

8 bytes

Command or Query.
Rx Data Rate, in kbps, between 2.4 kbps to 9.98 Mbps.
Resolution=1 bps
Example: RDR=2047.999

RDR=
RDR?
RDR*
RDR#

RDR?

RDR=xxxx.xxx
(see description of
arguments)

Rx Symbol
Rate

N/A

8 bytes

Query only.
Rx Symbol rate, in ksymbols/sec, between 4.8 ksps and 3.00 Msps
Resolution = 1 sps.
Example: RSR=2047.999 (which is 2047.999 ksymbols/sec)

N/A

RSR?

RSR=xxxx.xxx
(see description of
arguments)

Rx Spectrum
Invert

RSI=

1 byte, value
of 0 or 1

Command or Query.
Rx Spectrum Invert, where:
0=Normal
1=Rx Spectrum Invert
Example: RSI=0 (selects Normal)

RSI=
RSI?
RSI*
RSI#

RSI?

RSI=x
(see description of
arguments)

Rx
Descrambler

RDS=

1 byte, value
of 0, 1 or 2

Command or Query.
Rx Descrambler state, where:
0=Off
1=On (default descrambler type)
2 = On - IESS-315 (Turbo only)
Example: RDS=1 (Scrambler On)

RDS=
RDS?
RDS*
RDS#

RDS?

RDS=x
(see description of
arguments)


Priority System = ITF (Highest priority) , FRM, RFT, RMD, RCR, and RDR (Lowest Priority), indicated by shading. Any change to a higher
priority parameter can override any of the parameters of lower priority.

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