Table of Contents
Advertisement
Serial Interface Operation
CDM-760 Advanced High-Speed Trunking Modem
Controller-to-Target
Instruction Code and
Qualifier
Parameter Type
Command
Query
BERT Clear BER
BRM=
N/A
Counters
BERT Results
N/A
BRA?
All: Total Bit Errors,
Total Number Of
Bits and average
BER
Tx BERT State
BTX=
BTX?
BERT Pattern
N/A
RPS?
Sync
Tx Baseband
N/A
ST2?
Frames per
ModCod
Rx Baseband
N/A
ST3?
Frames per
ModCod
Rx Baseband
N/A
ST4?
Frames received
with errors per
ModCod
Rx Baseband
N/A
ST5?
Frames discarded
Arguments for
Description of Arguments
Command or
(Note that all arguments are ASCII numeric codes from 48 to 57)
Query
None
Command only
Clears the BER counters.
THIS COMMAND TAKES NO ARGUMENTS.
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)
1 byte, value of 0
Command or Query.
or 1
Sets or returns Tx BERT state in the form x, where:
0=off
1=on
EXAMPLE: <0/BTX=1 (BERT On)
1 byte, value of 1
Query only.
or 2
Returns the BER Test Pattern Sync Status in the form x, where:
1=pattern sync
2=no pattern sync
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.
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.
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.
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.
8–44
Revision 3
MN-CDM760
Target-to-Controller
(see Description of Arguments)
Response to
Response to
Command
Query
BRM=
N/A
BRM?
BRM*
BRM#
N/A
BRA=x.xEx:y.yE
y:z.zEz
BTX=
BTX=x
BTX?
BTX*
BTX#
N/A
RPS=x
N/A
ST2=
N/A
ST3=
N/A
ST4=
N/A
ST5=
Advertisement
Table of Contents
