Product specifications

CDM-710 Broadcast Satellite Modem Revision 11
Appendix A MN/CDM710.IOM
A–51
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
Transmit &
Receive
Configuration
TRC= 69 bytes Command or Query.
Global configuration, in the form:
aaa.aaaabcc.ccccccdefghhhhhhiii.ijkllll.llllmnn.nnnnnnopqrsssssstuvv, where:
aaaa.aaaa = Tx Frequency (in MHz) same as TFQ
b = Tx Mode same as TMM
cc.cccccc = Tx Symbol Rate same as TSR
d = Tx FEC Type same as TFT **
e = Tx Modulation type same as TMD
f = Tx FEC Rate same as TCR
g = Tx Spectrum Inversion same as TSI
hhhhhh = Tx Gold Code Sequence same as TGS
iii.i = Tx Power Level same as TPL
j = Tx Carrier State same as TXO
k = Tx Alpha Roll-off same as TAR
llll.llll = Rx Frequency (in MHz) same as RFQ
m = Rx Mode same as RMM
nn.nnnnnn = Rx Symbol Rate same as RSR
o = Rx FEC Type same as RFT **
p = Rx Modulation type same as RMD
q = Rx FEC Rate same as RCR
x = spare
ssssss = Rx Gold Code Sequence same as RGS
t = Rx Alpha Roll-off same as RAR
u = Unit test Mode same as TST**
vv = Unit Alarm Mask same as MSK
** Read-only
TRC=
TRC?
TRC*
TRC#
TRC? TRC=
aaaa.aaaabcc.ccccccdefghhh
hhhiii.ijkllll.llllmnn.nnnnnnopqx
sssssstuvv
Returns current transmit and
receive configuration.
Notes:
1. Unit returns ‘x’s for Rx
parameters if unit is modulator
only.
2. Unit returns ‘x’s for Tx
parameters if unit is
demodulator only.
3. If Rx is in DVB-S2
mode, the Rx Modulation Type
and Rx FEC Rate is ignored
because these are
automatically detected.
Unit Test Mode
TST= 1 byte Command or Query.
Test Mode in the form x, where:
0=Normal Mode (no test)
1=IF Loop
2=I/O Loop
3=RF Loop
4=Tx CW
5=Tx Alternating 1,0 Pattern
Example: TST=4 (Tx CW)
TST=
TST?
TST*
TST#
TST? TST=x