T. 6.3.8 – Comtech EF Data CDM-840 User Manual
Page 164

CDM-840 Remote Router
Revision 2
Serial-based Remote Product Management
MN-CDM840
7–18
7.3.8
LNB (Low-Noise Block Downconverter) Parameters Commands and Queries
Parameter
Type
Command
(Instruction
Code
& Qualifier)
Number of
Arguments for
Command or
Response to Query
Description of Arguments
(Note that all arguments are ASCII numeric codes from 48 and 57)
Response to
Command
(Target to
Controller)
Query
(Instruction
Code &
Qualifier)
Response to Query
(Target to Controller)
LNB Current
High
Limit
LNH=
3 bytes
Command or Query.
Sets or returns the current high limit value in the form xxx, where:
xxx = current high limit value from 0 to 500 mA.
Example: <1/LNH=123’cr’
LNH=
LNH?
LNH*
LNH#
LNH?
LNH=xxx
(see Description of
Arguments)
LNB Current
Low
Limit
LNL=
3 bytes
Command or Query.
Sets or returns the current low limit value in the form xxx, where:
xxx = current low limit value from 0 to 500 mA.
Example: <1/LNL=123’cr’
LNL =
LNL?
LNL *
LNL #
LNL?
LNL =xxx
(see Description of
Arguments)
LNB
Reference
Enable
LNR=
1 byte
Command or Query.
Sets or returns the LNB Reference Enable in the form x, where:
0=Disable
1=Enable
Example: <1/LNR=1’cr’
LNR=
LNR?
LNR*
LNR#
LNR?
LNR=x
(see Description of
Arguments)
LNB DC
Power
Control
LPS=
1 byte
Command or Query
Sets or returns the LNB DC Power Supply Control in the form x, where:
0 = Off
1 = 13V LNB Voltage
2 = 18V LNB Voltage
3 = 24V LNB Voltage
Example: <1/LPS=3’cr’
LPS=
LPS?
LPS*
LPS#
LPS?
LPS=x
(see Description of
Arguments)
LNB
Voltage
N/A
4 bytes
Query only.
Returns the LNB voltage value in volts
Example: <1/LVO?’cr’
N/A
LVO?
LVO=xxxx
(see Description of
Arguments)
LNB Current
N/A
4 bytes
Query only.
Returns ther LNB current value in mA.
Example: <1/LNC?’cr’
N/A
LNC?
LNC=xxxx
(see Description of
Arguments)