Comtech EF Data SLM-5650B, Installation And Operation Manual

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SLM-5650B Satellite Modem
Revision 2
Appendix C C–24 MN-SLM-5650B
Parameter
Type
Command
(Instruction
Code and
Qualifier)
Arguments for
Command or
Response to
Query
Description of Arguments
Response to
Command
Query
(Instruction
Code and
Qualifier)
Response to
Query
Rx Eb/No N/A 4 bytes Query only.
Returns the value of Eb/No, between 0 and 20 dB, resolution = 0.1
dB.
Returns 99.9 if demod is unlocked.
Example: EBN = 12.3 (selects Eb/No = 12.3 dB)
For values greater than 20.0 dB, the reply will be: EBN = +020
N/A EBN? EBN=xxxx
(see Description
of Arguments)
Rx BERT Errors N/A 7 bytes Query only.
Read the total number of Bit Errors.
Example: ERR = 9999999
N/A ERR? N/A
Rx Buffer
Programming
Mode
RBM= 1 byte Command or Query.
Rx Buffer Programming Mode, where:
0 = Buffer Size is programmed in Bits.
1 = Buffer Size is programmed in milliseconds.
Note: Commands as well as queries are not allowed when either the
GigaBit Ethernet or NP card has been selected as the current
interface type.
Example: RBM = 0
RBM=
RBM?
RBM*
RBM#
RBM? RBM=x
(see Description
of Arguments)
Rx BPSK Data
Ordering
RBO= 1 byte Command or Query.
Invert Receive BPSK Data Ordering in the form x, where:
0 = Standard
1 = Non-Standard
Example: RBO = 1 (selects Inverted BPSK Ordering)
RBO =
RBO?
RBO*
RBO#
RBO? RBO=x
(see Description
of Arguments)