Comtech EF Data SLM-5650A Installation And Operation Manual page 367

SLM-5650A Satellite Modem
Appendix C
Command
Parameter (Instruction
Type Code and
Qualifier)
Rx FEC Code RCR= 1 byte, value of
Rate 0 thru D
Rx Data Rate RDR= 10 bytes
Rx BERT BER N/A 6 bytes
Rx BER N/A 6 bytes
Rx BERT Reset BRS= None
Arguments for
Command or
Response to
Query
Command or Query.
Rx FEC Code Rate, where:
0 = 1/1 (Uncoded)
1 = 1/2
2 = 3/4
3 = 7/8
4 = 2/3
5 = 5/6
6 = 21/44
7 = 5/16
8 = 17/18
9 = Reserved
A = Reserved
B = .547
C = .456
D = .382
Depending on FEC type, not all selections will be valid.
Example: RCR=1 (selects Rate 1/2)
Command or Query.
Rx Data rate, in kbps, in the form xxxxxx.xxx.
Resolution = 1 bps.
Example: RDR=002047.999 (selects 2047.999 kbps)
Query only.
Unit returns the value of the BERT BER in the form a.b x 10
First three bytes are the value;
Last two bytes are the exponent.
Returns 0.0E00 if the BERT is not synchronized to a pattern.
Example: BBR=4.9E12
Query only.
Unit returns the value of the estimated corrected BER in the form a.b x 10
three bytes are the value. Last two bytes are the exponent. Returns 99999 if the
demodulator is unlocked.
Example: BER=4.8E03 (selects BER = 4.8 x 10
Command only.
Reset Rx BERT.
Example: BRS=
Description of Arguments
-c
, where:
-3
)
C–15
Query
Response to (Instruction
Command Code and
Qualifier)
RCR= RCR?
RCR?
RCR*
RCR#
N/A RDR?
N/A BBR?
N/A BER?
-cc
. First
BRS= N/A
BRS?
BRS*
BRS#
Revision 8
MN-SLM5650A
Response to Query
RCR=x
(see Description
of Arguments)
RDR=xxxxxx.xxx
(see Description
of Arguments)
BBR=a.bEcc
(see Description
of Arguments)
BER=a.bEcc
(see Description
of Arguments)
N/A