Comtech EF Data CDM-750 - Manual (Page 220)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Serial-based Remote Product Management MN-CDM750
7–40
Parameter
Type
Command
(Instruction
& Qualifier)
Number of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to Query
Rx BERT
Pattern
RBP= 1 byte, value
of 0 thru 6
Command or Query.
Set or return the PN loopback 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: 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: 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. BKE =
BKE?
BKE #
N/A N/A
BERT Clear
BER Counters BRM= None Command only
Clears the BER counters. BRM =
BRM?
BRM *
BRM #
N/A N/A
BERT Results
All: Total Bit
Errors, Total
Number Of
Bits and
average BER
N/A 22 bytes Query only.
Returns 3 values, with each parameter is separated by a colon, in the form x.xEx:y.yEy:z.zEz where:
x.xEx = total number of bit errors
yEy = total number of bits
z.zEz = value of the average BER or “No Sync” if no demod lock.
Example 1: BRA=1.0E+03:2.2E+06:1.0E+03 (No Demod Lock)
Example 2: BRA=1.0E+03:2.2E+06 (No Sync)
N/A BRA? BRA=x.xEx:y.yEy:z.z
Ez
(see Description of
Arguments)
Tx BERT
State
BTX= 1 byte, value
of 0 or 1
Command or Query.
Set or return Tx BERT state in the form of x, where:
0 = off
1 = on
Example: BTX=1 (BERT On)
BTX =
BTX?
BTX *
BTX #
BTX? BTX =x
(see Description of
Arguments)