Comtech EF Data CDM-425 Installation And Operation Manual page 337

Command
Parameter Number of
(Instruction
Type Arguments
& Qualifier)
...Tx FEC
Code Rate
(cont)
Tx Data Rate TDR= 9 bytes
Tx TSR= 9 bytes,
Symbol Rate numeric
Tx Frequency TFQ= 9 bytes
Tx TDI= 1 byte,
Data Invert 0 or 1
Tx Sub-Mux TMX= 1 byte,
on/off 0 or 1
Tx Sub-Mux TMR= 2 bytes,
Ratio numeric
Serial Remote Control
Description of Arguments
y=VersaFEC-2 ModCod 29 – 32-ARY 0.684
z=VersaFEC-2 ModCod 30 – 32-ARY 0.708
"=VersaFEC-2 ModCod 31 – 32-ARY 0.733
&=VersaFEC-2 ModCod 32 – 32-ARY 0.757
@=VersaFEC-2 ModCod 33 – 32-ARY 0.782
[=VersaFEC-2 ModCod 34 – 32-ARY 0.801
]=VersaFEC-2 ModCod 35 – 32-ARY 0.831
{=VersaFEC-2 ModCod 36 – 32-ARY 0.855 (Long Block only)
}=VersaFEC-2 ModCod 37 – 32-ARY 0.879 (Long Block only)
Depending on FEC type, not all of these selections will be valid.
EXAMPLE: <0/TCR=A (selects Versa FEC CCM ModCod0 - BPSK 0.488)
Command or Query (Query only in ACM).
Sets or returns Tx Data rate in the form xxxxx.xxx, where:
xxxxx.xxx=Value, in kbps, from 18 kbps to 30 Mbps
Resolution=1 bps
NOTES:
1) Additional auxiliary G.703 sub-rates are available, selected using:
00512.AUX 01024.AUX 02048.AUX
2) The connectors used for the Aux rates are IDI/DDO.
3) These Aux rates are not available with Drop & Insert.
4) Read-only if Framing Mode is Quad Drop & Insert (TFM=8).
Data rate is set by assigning the number of channels on each port.
5) Read-only if Modulation Type is a 'Reserved' type
EXAMPLE: <0/TDR=02047.999 (selects 2047.999 kbps)
Query only (Command or Query in IP-ACM or VersaFEC-2 ACM).
Allows remote access to the Tx symbol rate in the form ddddd.ddd.
NOTE: Symbol Rate range in IP-ACM is from 37 ksym/sec to 4100 ksym/sec
Symbol Rate ranges in VersaFEC-2 ACM Short Block is from 37 ksym/sec to 1000 ksym/sec
Symbol Rate ranges in VersaFEC-2 ACM Long Block is from 37 ksym/sec to 125000 ksym/sec
Command or Query.
Sets or returns Tx Frequency in the form xxxx.xxxx, where:
L-Band Unit range is from 950 MHz to 2250 MHz, and
70/140 Unit (FAST Option) range is from 50 MHz to 180 MHz
Resolution=100Hz.
EXAMPLE: <0/TFQ=0950.9872
Command or Query.
Sets or returns Invert Transmit Data in the form x, where:
0=Normal
1=Inverted
EXAMPLE: <0/TDI=1 (selects TX Data Invert
Command or Query.
Sets or returns Tx Sub-Mux in the form x, where:
0=Off
1=On
Command or Query.
Sets or returns Tx Sub-Mux Ratio (IP/Synchronous Interface) in the form xx, where
8–13
CDM-425 Advanced Satellite Modem
Revision 0
Query
Response to
(Instruction Response to Query
Command
& Qualifier)
TDR= TDR? TDR=xxxxx.xxx
TDR? (see Description of
TDR* Arguments)
TDR#
TSR? TSR? TSR=ddddd.ddd
TSR= (see Description of
TSR* Arguments)
TSR#
TFQ= TFQ? TFQ=xxxx.xxxx
TFQ?
TFQ*
TFQ#
TDI= TDI? TDI=x
TDI? (see Description of
TDI* Arguments)
TDI#
TMX? TMX? TMX=x
TMX= (see Description of
TMX* Arguments)
TMX#
TMR? TMR? TMR=xx
TMR= (see Description of
MN-CDM-425