Comtech EF Data SLM-5650A Installation And Operation Manual page 368

SLM-5650A Satellite Modem
Appendix C
Command
Parameter (Instruction
Type Code and
Qualifier)
Rx BERT State BRX= 1 byte, value of 0
or 1
Rx Eb/No N/A 4 bytes
Rx BERT Errors N/A 7 bytes
Rx Buffer RBM= 1 byte, value of 0
Programming or 1
Mode
Rx BPSK Data RBO= 1 byte, value of 0
Ordering or 1
Rx Buffer Size RBS= 8 bytes
ReCenter Buffer RCB= None
Arguments for
Command or
Response to
Query
Command or Query.
Rx BERT State, where:
0=Off
1=On
Example: BRX=1 (Rx BERT On)
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
Query only.
Read the total number of Bit Errors.
Example: ERR=9999999
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
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)
Command or Query.
Rx Buffer Size (in either bits or milliseconds, see RBM command), where:
xxxxxxxx=Rx Buffer Size
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: RBS=00000512
Command only.
Forces the software to recenter the receive Plesiochronous / Doppler buffer.
Note: This command is not allowed when either the GigaBit Ethernet or NP card has
been selected as the current interface type.
Example: RCB= (ReCenter buffer)
Description of Arguments
C–16
Revision 8
MN-SLM5650A
Query
Response to (Instruction
Response to Query
Command Code and
Qualifier)
BRX= BRX? BRX=x
BRX? (see Description
BRX* of Arguments)
BRX#
N/A EBN? EBN=xxxx
(see Description
of Arguments)
N/A ERR? N/A
RBM= RBM? RBM=x
RBM? (see Description
RBM* of Arguments)
RBM#
RBO = RBO? RBO=x
RBO? (see Description
RBO* of Arguments)
RBO#
RBS= RBS? RBS=xxxxxxxx
RBS? (see Description
RBS* of Arguments)
RBS#
RCB= N/A N/A
RCB?
RCB*
RCB#