Comtech EF Data CDM-760 - Page 287

Serial Interface Operation Revision 3
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
8–44
Parameter Type
Controller-to-Target
Instruction Code and
Qualifier
Arguments for
Command or
Query
Description of Arguments
(Note that all arguments are ASCII numeric codes from 48 to 57)
Target-to-Controller
(see Description of Arguments)
Command Query
Response to
Command
Response to
Query
BERT Clear BER
Counters
BRM=
N/A
None
Command only
Clears the BER counters.
THIS COMMAND TAKES NO ARGUMENTS.
BRM=
BRM?
BRM*
BRM#
N/A
BERT Results
All: Total Bit Errors,
Total Number Of
Bits and average
BER
N/A
BRA?
23 or 15 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: <0/BRA?
RESPONSE EXAMPLE 1: >0000/BRA=1.0E+03:2.2E+06:1.0E+03 (No Demod Lock)
RESPONSE EXAMPLE 2: >0000/BRA=1.0E+03:2.2E+06 (No Sync)
N/A
BRA=x.xEx:y.yE
y:z.zEz
Tx BERT State
BTX=
BTX?
1 byte, value of 0
or 1
Command or Query.
Sets or returns Tx BERT state in the form x, where:
0=off
1=on
EXAMPLE: <0/BTX=1 (BERT On)
BTX=
BTX?
BTX*
BTX#
BTX=x
BERT Pattern
Sync
N/A
RPS?
1 byte, value of 1
or 2
Query only.
Returns the BER Test Pattern Sync Status in the form x, where:
1=pattern sync
2=no pattern sync
N/A
RPS=x
Tx Baseband
Frames per
ModCod
N/A
ST2?
Query only.
Return format for each Tx ModCod entry, separated by a colon, in the form x.xE+xx for each entry.
There are 28 total entries when NET=0; 47 total entries when NET=1; and 52 total entries when NET=2.
N/A
ST2=
Rx Baseband
Frames per
ModCod
N/A
ST3?
Query only.
Return format for each Rx ModCod entry, separated by a colon, in the form x.xE+xx for each entry.
There are 28 total entries when NET= 0; 47 total entries when NET=1; and 52 total entries when NET=2.
N/A
ST3=
Rx Baseband
Frames received
with errors per
ModCod
N/A
ST4?
Query only.
Return format for each Rx ModCod entry, separated by a colon, in the form x.xE+xx for each entry.
There are 28 total entries when NET=0; 47 total entries when NET=1; and 52 total entries when NET=2.
N/A
ST4=
Rx Baseband
Frames discarded
N/A
ST5?
Query only.
Returns the Rx baseband frames received without errors, but discarded due to the required feature code not having
been purchased. Returns two entries separated by a colon:
First entry=16 APSK frames discarded
Second=32 APSK frames discarded.
N/A
ST5=