Comtech EF Data CDM-570A Installation And Operation Manual page 299

Command
Parameter (Instruction
Type Code and
Qualifier)
DoubleTalk
Carrier-in-
Carrier (CnC)
Mode (continued)
CnC CCF= 3 bytes
Frequency
Range/offset
CnC CSD= 6 bytes
Min/Max
Search Delay
Serial-based Remote Product Management
Arguments for
Command or
Response to
Query
Notes:
1) CnC may be enabled only if:
• The optional plug-in hardware CnC card is 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.)
3) If CNM=2..9, AUP is forced to 3.
4) Entries 1 to 9 are not valid if Tx or Rx Symbol Rate is <16ksps.
Command or Query.
Valid only in CDM-570A Compatible Mode (CMO=1).
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:
16ksps to 64ksps: ±1 to the symbol rate (ksps)/2
64ksps and above: ±1 to 32 kHz
Example: <0/CCF=030
Command or Query.
Valid only in CDM-570A Compatible Mode (CMO=1).
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 300ms
Example: <0/CSD=010225
CDM-570A/570AL Satellite Modem with Optional Packet Processor
Description of Arguments
8–33
Revision 5
Query
Response to
(Instruction Code
Command
and Qualifier)
CCF= CCF? CCF=xxx
CCF? (see Description of
CCF* Arguments)
CCF#
CSD= CSD? CSD=xxxyyy
CSD? (see Description of
CSD* Arguments)
CSD#
MN-CDM570A
Response to
Query