Comtech EF Data CDM-625 - Page 483

CDM-625 Advanced Satellite Modem Revision 13
Appendix D MN-CDM625
D–13
Parameter
Type
Command
(Instruction
& Qualifier)
Number of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to
Query
Tx Data Rate
TDR=
9 bytes
Command or Query (Query only in IP-ACM).
Tx Data rate, in kbps, between 18 kbps and 25 Mbps Resolution=1 bps
Example: TDR=02047.999 (selects 2047.999 kbps)
Additional auxiliary G.703 sub-rates are available, selected using:
00512.AUX
01024.AUX
02048.AUX
The connectors used for the Aux rates are IDI/DDO.
These Aux rates are not available with Drop & Insert or IDR.
Read-only if Framing Mode is Quad Drop & Insert (TFM=8). Data rate is set by assigning the number of
channels on each port.
Read-only if Modulation Type is a ‘Reserved’ type
TDR=
TDR?
TDR*
TDR#
TDR?
TDR=xxxxx.xxx
(see Description of
Arguments)
Tx
Symbol Rate
TSR=
9 bytes,
numeric
Query only (Command or Query in IP-ACM).
Allows remote access to the Tx symbol rate, in the form ddddd.ddd
Note: Symbol Rate ranges in IP-ACM = 37 ksym/sec to 4100 ksym/sec
TSR?
TSR=
TSR*
TSR#
TSR?
TSR=ddddd.ddd
(see Description of
Arguments)
Tx Frequency
TFQ=
9 bytes
Exception –
600 Emulation
8 bytes
Command or Query.
Frequency ranges:
50 MHz to 180 MHz, and
950 MHz to 1950 MHz (L-Band – FAST option)
Resolution=100Hz.
Note: The CDM-625 supports 70,140 MHz bands and L-Band.
Example: TFQ=0950.9872
TFQ=
TFQ?
TFQ*
TFQ#
TFQ?
TFQ=xxxx.xxxx
Exception –
600 Emulation:
TFQ=xxx.xxxx
Tx Sub-Mux
on/off
TMX=
1 byte, 0 or 1
Command or Query.
Tx Sub-Mux in the form x, where:
0=Off
1=On
TMX?
TMX=
TMX*
TMX#
TMX?
TMX=x
(see Description of
Arguments)
Tx Sub-Mux
Ratio
TMR=
2 bytes,
numeric
Command or Query.
Tx Sub-Mux Ratio (IP/Synchronous Interface) in the form xx, where
TMR?
TMR=
TMR*
TMR#
TMR?
TMR=xx
(see Description of
Arguments)
00=1/9
01=1/8
02=1/7
03=1/6
04=1/5
05=1/4
06=2/7
07=1/3
08=2/5
09=3/7
10=1/2
11=3/5
12=2/3
13=3/4
14=4/5
15=1/1
16=5/4
17=4/3
18=3/2
19=5/3
20=2/1
21=7/3
22=5/2
23=3/1
24=7/2
25=4/1
26=5/1
27=6/1
28=7/1
29=8/1
30=9/1
31=1/59 32=1/39 33=1/19
Example: TMR=01 (Selects ratio 1/8)