Comtech EF Data CDM-570A User Manual
Page 253
CDM-570A/570AL Satellite Modem with Optional Packet Processor
MN-CDM570A
Serial-based Remote Product Management
Revision 2
8–13
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
Tx FEC Code
Rate
TCR=
1 byte, value of 0
thru 7, A to R
Command or Query.
Sets or returns Tx Code Rate in the form x, where:
0 = Rate 5/16 (Turbo Only)
1 = Rate 21/44 (Turbo Only)
2 = Rate 1/2
3 = Rate 2/3 (8-PSK TCM or 8-QAM only)
4 = Rate 3/4
5 = Rate 7/8
6 = Rate 0.95 (Turbo Only)
7 = Rate 1/1 (Uncoded or No FEC)
8 = Reserved
9 = Reserved
(The remaining entries are valid only in CDM-570A Compatible Mode (CMO=1)):
A = VersaFEC CCM – BPSK Rate 0.488
B = VersaFEC CCM – QPSK Rate 0.533
C = VersaFEC CCM – QPSK Rate 0.631
D = VersaFEC CCM – QPSK Rate 0.706
E = VersaFEC CCM – QPSK Rate 0.0803
F = VersaFEC CCM – 8-QAM Rate 0.576
G = VersaFEC CCM – 8-QAM Rate 0.642
H = VersaFEC CCM – 8-QAM Rate 0.711
I = VersaFEC CCM – 8-QAM Rate 0.780
J = VersaFEC CCM – 16-QAM Rate 0.644
K = VersaFEC CCM – 16-QAM Rate 0.731
L = VersaFEC CCM – 16-QAM Rate 0.780
M = VersaFEC CCM – 16-QAM Rate 0.829
N = VersaFEC CCM –16-QAM Rate 0.853
O = VersaFEC CCM ULL– BPSK Rate 0.493
P = VersaFEC CCM ULL– QPSK Rate 0.493
Q = VersaFEC CCM ULL– QPSK Rate 0.654
R = VersaFEC CCM ULL– QPSK Rate 0.734
Note: Selection availability depends on the active FEC and Modulation type.
Example: <0/TCR=4 (Rate 3/4)
TCR=
TCR?
TCR*
TCR#
TCR+
TCR?
TCR=x
(see Description
of Arguments)
Tx Data Rate
TDR=
CDM-570A
Compatible
Mode: 9 bytes
CDM-570
Compatible
Mode: 8 bytes
Command or Query.
Sets or returns Tx Data rate in the form xxxxx.xxx, where:
xxxxx.xxx = value from 2.4 kbps to 10240 kbps
Resolution = 1 bps.
Examples:
1) <0/TDR=02047.999 (2047.999 kbps in CDM-570A Compatible Mode)
2) <0/TDR=2047.999 (2047.999 kbps in CDM-570 Compatible Mode)
TDR=
TDR?
TDR*
TDR#
TDR?
TDR=xxxxx.xxx
(see Description
of Arguments)