Comtech EF Data CDM-760 - Manual (Page 274)

Serial-based Remote Product Management Revision 2
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
8–40
Parameter
Type
Command
(Instruction
& Qualifier)
Number of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to Query
CnC
Delay Monitor
N/A 6 bytes Query only.
When CnC is enabled and the modem is locked, it monitors the delay, in microseconds (µs), of the
interferer. Delay is returned in the form xxxxxx.
EXAMPLE: <0/CDM?
RESPONSE EXAMPLE 1: >0000/CDM=229500 (returns 229,500 µs or 229.5 ms)
RESPONSE EXAMPLE 2: >0000/CDM=999999 (not locked or CnC not enabled)
N/A CDM? CDM=xxxxxx
(see Description of
Arguments)
CnC
Freq Offset
Monitor
N/A 6 bytes Query only.
When CnC is enabled, an estimated frequency offset, in kHz, will be calculated between desired and
interferer, Frequency offset is returned in the form xxxx.x.
EXAMPLE: <0/CFM?
RESPONSE EXAMPLE 1: >0000/CFM=+001.0 (1 kHz)
RESPONSE EXAMPLE 2: >0000/CFM=9999.9 (not locked or CnC not enabled)
N/A CFM? CFM=xxxx.x
(see Description of
Arguments)
Rx BERT
Pattern
RBP = 1 byte, value
of 0 thru 6
Command or Query.
Sets or returns the PN loopback pattern type in the form x, where:
0 = 2^23-1 (DEFAULT)
1 = Reserved
2 = Reserved
3 = Reserved
4 = Reserved
5 = 2047
6 = 2^15-1
EXAMPLE: <0/RBP=0 (default 2^23-1)
RBP =
RBP?
RBP*
RBP#
RBP? RBP=
(see Description of
Arguments)
Tx BERT
Pattern
TBP = 1 byte, value
of 0 thru 6
Command or Query.
Initialises the PN loopback functionality and sets the pattern type in the form x, where:
0 = 2^23-1
1 = Reserved
2 = Reserved
3 = Reserved
4 = Reserved
5 = 2047
6 = 2^15-1
EXAMPLE: <0/TBP=0 (default 2^23-1)
TBP =
TBP?
TBP*
TBP#
TBP? TBP=
(see Description of
Arguments)
BERT Error
Insert
BKE = None Command only.
Inserts a single error.
THIS COMMAND TAKES NO ARGUMENTS.
BKE =
BKE?
BKE#
N/A N/A
BERT Clear
BER Counters
BRM = None Command only
Clears the BER counters.
THIS COMMAND TAKES NO ARGUMENTS.
BRM =
BRM?
BRM*
BRM#
N/A N/A