Comtech EF Data CDM-625A - Page 349

CDM-625A Advanced Satellite Modem MN-CDM625A
Serial-based Remote Product Management Revision 4
8–35
Parameter
Command
(Instruction
& Qualifier)
Length of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to Query
POCO
feature
(Power-On
Carrier-Off)
PCO=
1 byte, 0 or 1
Command or Query.
When enabled, when a modem is power cycled, it powers up with the Tx carrier setting OFF.
0=POCO disabled (normal operation)
1=POCO enabled – Use with caution!
EXAMPLE: <0/PCO=0 (disabled – normal operation)
PCO=
PCO?
PCO*
PCO#
PCO?
PCO=x
(see Description of
Arguments)
DoubleTalk
Carrier-in-
Carrier (CnC)
Mode
CNM=
1 byte, 0 thru 9
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:
• The optional plug-in hardware CnC card has been installed AND 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.)
CNM=
CNM?
CNM*
CNM#
CNM?
CNM=x
(see Description of
Arguments)
DoubleTalk
Carrier-in-
Carrier (CnC)
PMSI Mode
CPM=
1 byte, 0 thru 3
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
CPM=
CPM?
CPM*
CPM#
CPM?
CPM=x
(see Description of
Arguments)
CnC
Frequency
Range/offset
CCF=
3 bytes
Command or Query. (CnC parameter)
Sets or returns the maximum value that may b
e entered, in the form xxx, as the CnC Sweep frequency range depends on
the Rx symbol rate as follows:
CCF=
CCF?
CCF*
CCF#
CCF?
CCF=xxx
(see Description of
Arguments)
18ksps to 64ksps:
64ksps to 389ksps:
389ksps to 2000ksps:
>2000ksp
±
1 to the symbol rate (ksps)/2
±1 to 32 kHz
±1 to 10% of sym rate
±
1 to 200 kHz
EXAMPLE: <0/CCF=030
CnC
Min/Max
Search Delay
CSD=
6 bytes
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
CSD=
CSD?
CSD*
CSD#
CSD?
CSD=xxxyyy
(see Description of
Arguments)