Comtech EF Data CDM-570 - Manual (Page 360)

CDM-570/570L Satellite Modem with Optional IP Module Revision 12
Appendix D MN/CDM570L.IOM
D–10
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
Tx Modulation
Type TMD= 1 byte,
value of 0 thru 5 Command or Query.
Tx Modulation type, where:
0=BPSK
1=QPSK
2=OQPSK
3=8PSK
4=16-QAM (Turbo or Viterbi + RS only)
5=8-QAM (Future option)
Depending on FEC type, not all of these selections will be valid.
Example: TMD=2 (which is OQPSK) TMD=
TMD?
TMD*
TMD#
TMD+ TMD? TMD=x
(see Description
of Arguments)
Tx FEC Code
Rate TCR= 1 byte,
value of 0 thru 7 Command or Query.
Tx 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 Modulation type, not all of these selections will be valid.
Example: TCR=4 (which is Rate 3/4) TCR=
TCR?
TCR*
TCR#
TCR+ TCR? TCR=x
(see Description
of Arguments)
Tx Data Rate TDR= 8 bytes Command or Query.
Tx Data rate, in kbps, between 2.4 kbps and 9.98 Mbps
Resolution=1 bps.
Example: TDR=2047.999 (which is 2047.999 kbps) TDR=
TDR?
TDR*
TDR# TDR? TDR=xxxx.xxx
(see Description
of Arguments)
Front Panel
Lockout FPL= 1 byte,
value of 0 or 1
Command or Query.
Control the state of front panel lockout, where:
0=no lockout
1=front panel lockout active
Disable the lockout by either FPL=0, or by setting into local mode using LRS=0
(response is LRS+ meaning FPL is disabled at the same time)
Note: When using the Optional IP Module Command Line Interface (CLI), to verify CLI
lockout:
<0/FPL?
>0000/FPL=0 (Lockout disabled) or
>0000/FPL=1 (Lockout enabled)
FPL=
FPL?
FPL*
FPL#
FPL? FPL=x
(see Description of
Arguments)