Comtech EF Data CDM-Qx Installation And Operation Manual page 205

CDM-Qx Satellite Modem
Remote Control
Command
Parameter (Instruction
Type Code and
qualifier)
LNB Low Current LCL=
Limit
(L-Band Unit only)
LNB High Current LCH=
Limit
(L-Band Unit only)
LNB LO LLO=
Frequency
(L-Band Unit only)
LNB Current N/A
(L-Band Unit only)
LNB Voltage N/A
(L-Band Unit only)
Terminal Rx N/A
Frequency
(L-Band Unit only)
Arguments for
Command or
Response to
Query
3 bytes Command or Query
LNB lower alarm limit for current, in the form xxx, where xxx is the
current value between 10 and 400 mA.
3 bytes Command or Query
LNB higher alarm limit for current, in the form of xxx, where xxx is the
current value between 50 and 600 mA.
6 bytes Command or Query
LNB Receive LO frequency information in the form: xxxxxx, where:
xxxxxx is the LO frequency, in the range of 3000 to 65000 MHz.
All 0's (000000) disables this feature.
s is the sign for the mix (+ or – character)
Terminal Frequency = LNB LO RFQ
Example: LLO=06000- (LO is 6 GHz, high-side mix)
3 bytes Query only.
Indicates the value of the LNB Current, in the form: xxx, where xxx is
between 0 and 999, units mA.
If not available, response is 000.
Example: LDC=210 (LNB DC current is 210 mA)
4 bytes Query only.
Indicates the value of the LNB Voltage, in the form: xx.x, where xx.x is
between 0 and 20.0
If not available, response is 00.0
Example: LDV=18.1 (LNB DC voltage is 18.1 volts)
10 bytes Query only.
Terminal Rx Frequency, where frequency = LNB LO ± RFQ
Resolution = 100Hz
Returns 00000.0000 if LNB LO is zero
Example: TRF=11650.2249
Description of arguments
C-39
Response to Query
Command (Instruction
(Target to Code and
Controller) Qualifier)
LCL= LCL?
LCL?
LCL*
LCL#
LCL^
LCH= LCH?
LCH?
LCH*
LCH#
LCH^
LLO= LLO?
LLO?
LLO*
LLO#
LLO^
N/A LDC?
N/A LDV?
N/A TRF?
Revision 6
MN/CDMQx.IOM
Response to query
(Target to
Controller)
LCL=xxx
(see description of
arguments)
LCH=xxx
(see description of
arguments)
LLO=xxxxxs
(see description of
arguments)
LDC=xxx
(see description of
arguments)
LDV=xx.x
(see description of
arguments)
TRF=xxxxx.xxxx
(see description of
arguments)