Comtech EF Data CDM-425 Installation And Operation Manual page 357

Command
Length of
Parameter (Instruction
Arguments
& Qualifier)
DoubleTalk CNM= 1 byte,
Carrier-in- 0 thru 9
Carrier (CnC)
Mode
DoubleTalk CPM= 1 byte,
Carrier-in- 0 thru 3
Carrier (CnC)
PMSI Mode
CnC CCF= 3 bytes
Frequency
Range/offset
CnC CSD= 6 bytes
Min/Max
Search Delay
Serial Remote Control
Description of Arguments
Command or Query.
Sets or returns CnC operation in the form x, where:
0=Off
1=On (normal)
2=APC, C-Band, Side A
3=APC, X-Band, Side A
4=APC, Ku-Band, Side A
5=APC, Ka-Band, Side A
6=APC, C-Band, Side B
7=APC, X-Band, Side B
8=APC, Ku-Band, Side B
9=APC, Ka-Band, Side B
NOTES:
1) CnC may be enabled only if:
• A CnC FAST option is unlocked.
• The range of permitted data rates is controlled by a FAST feature code. (Read EID to decode the
installed options for the modem)
2) If CnC-APC is active (APS=22), key transmission/reception (Modulation, FEC type, Code Rate,
Framing, Data Rate, Interface) cannot be modified until CnC-APC is suspended. (Use APC command
to suspend or activate.)
Command or Query. (CnC parameter)
Sets or returns CnC PMSI (Pre-Mapped-Symbol Interface) mode in the form x, where:
0=Idle
1=Redundancy (1:1 or 1:N)
2=Talk
3=Listen
Command or Query. (CnC parameter)
Sets or returns the maximum value that may be entered, in the form xxx, as the CnC Sweep frequency
range depends on the Rx symbol rate as follows:
±1 to the symbol rate (ksps)/2
18ksps to 64ksps:
64ksps to 389ksps: ±1 to 32 kHz
389ksps to 2000ksps: ±1 to 10% of sym rate
>2000ksp
±1 to 200 kHz
EXAMPLE: <0/CCF=030
Command or Query. (CnC parameter)
Sets or returns CnC min/max delay value in milliseconds, in the form xxxyyy, where:
xxx=minimum delay
yyy=maximum delay
Maximum allowable value is 330ms
EXAMPLE: <0/CSD=010325
8–33
CDM-425 Advanced Satellite Modem
Revision 0
Query
Response to
(Instruction Response to Query
Command
& Qualifier)
CNM= CNM? CNM=x
CNM? (see Description of
CNM* Arguments)
CNM#
CPM= CPM? CPM=x
CPM? (see Description of
CPM* Arguments)
CPM#
CCF= CCF? CCF=xxx
CCF? (see Description of
CCF* Arguments)
CCF#
CSD= CSD? CSD=xxxyyy
CSD? (see Description of
CSD* Arguments)
CSD#
MN-CDM-425