Modem (Modulator+Demodulator) Commands And Queries - Comtech EF Data CDM-710 Installation And Operation Manual

CDM-710/L Broadcast Satellite Modem
Serial Interface Operation

9.4.3 Modem (Modulator+Demodulator) Commands and Queries

Priority System=(From highest to lowest priority) TMM>TMD>TCR>TSR. Any change to a higher priority parameter
can override any of the parameters of lower priority.
Controller-to-Target
Instruction Code & Qualifier
Parameter
Type
Command Query
Tx Mode TMM= TMM?
Tx Modulation TMD= TMD?
Type
Number of
Arguments
for Command
(Note that all arguments are ASCII numeric codes from 48 and 57)
or Response
to Query
1 byte Command or Query.
Sets or returns the Tx Mode* in the form x where:
0=DVB-S
1=DVB-S2
2=DVB-DSNG
COMMAND EXAMPLE: <0001/TMM=0{CR} (sets DVB-S mode)
*NOTE: See Chapter 2. SPECIFICATIONS for available code rates, modulation
types, and symbol rates for each mode.
1 byte Command or Query.
Sets or returns Tx Modulation type* in the form x where:
0=QPSK
1=8PSK
2=16QAM
3=16APSK
4=32APSK
COMMAND EXAMPLE: <0001/TMD=1{CR} (sets as 8PSK)
*NOTE: See Chapter 2. SPECIFICATIONS for available modulation types for
each mode.
9–45
Description of Arguments
MN/CDM710.IOM
Revision 12
Target-to-Controller
(See Description of Arguments)
Response to Response to
Command Query
TMM= TMM=x
TMM?
TMM*
TMM#
TMD= TMD=x
TMD?
TMD*
TMD#