Lnb Commands And Queries (Cdm-570L Only - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Appendix D
D.6.6

LNB Commands and Queries (CDM-570L ONLY)

Command
Parameter (Instruction
Type Code and
Qualifier)
Attach LNB Alarm ALA= 1 byte,
to Rx Alarm value of 0 or 1
LNB High current LCH= 3 bytes
limit
LNB Low current LCL= 3 bytes
limit
LNB Current N/A 3 bytes
LNB Voltage N/A 4 bytes
LNB Frequency LFR= 1 byte,
Reference enable value of 0 or 1
Arguments for
Command or
Response to
Query
Command or Query.
Attach LNB Alarm to Rx Alarm, where:
0 = No
1 = Yes
Example: ALA=1 (Attach LNB Alarm to Rx Alarm)
Command or Query.
LNB upper alarm limit for current, in mA, in the form xxx, where:
xxx = current value between 50 and 600
Example: LCH=450
Command or Query.
LNB lower alarm limit for current, in mA, in the form xxx, where:
xxx = current value between 10 and 400
Example: LCL=050
Query only.
Indicates the value of the LNB Current, in mA, in the form xxx, where:
xxx = current value between 0 and 999
If not available, response is 000.
Example: LDC=210 (LNB DC current is 210 mA)
Query only.
Value of LNB Voltage is returned, in the form xx.x, where:
xx.x = voltage value between 0 and 30.0
If not available, response is 00.0.
Example: LDV=24.2 (LNB DC voltage is 24.2 volts)
Command or Query.
0=Disable LNB Reference
1=Enable LNB Reference
Example: LFR=0 (LNB 10 MHz reference off)
Description of Arguments
D–34
Revision 12
MN/CDM570L.IOM
Query
Response to
(Instruction Code
Command
and Qualifier)
ALA= ALA? ALA=x
ALA? (see Description of
ALA# Arguments)
LCH= LCH? LCH=xxx
LCH? (see Description of
LCH* Arguments)
LCH#
LCL= LCL? LCL=xxx
LCL? (see Description of
LCL* Arguments)
LCL#
N/A LDC? LDC=xxx
(see Description of
Arguments)
N/A LDV? LDV=xx.x
(see Description of
Arguments)
LFR= LFR? LFR=x
LFR? (see Description of
LFR* Arguments)
LFR#
Response to
Query