Comtech EF Data MBT-5000 - Manual (Page 121)

MBT-5000 L-Band Up/Down Converter System MN-MBT5000
Serial-based Remote Product Management Revision 4
7–19
7.3.2 Block Converter (BUC / BDC) Remote Commands and Queries
Parameter
Type
Command
(Instruction
Code and
Qualifier)
Arguments for
Command or
Response to
Query
Description of arguments
(Note that all arguments are ASCII numeric codes between 48 and 57)
Response to
Command
(Target to
Controller)
Query
(Instruction
Code and
Qualifier)
Response to query
(Target to
Controller)
Attenuation
Offset
AOF= 5 bytes Command or Query.
Note: Command is only for the offline converter in a redundancy mode. The valid range is -3.00 to
+3.00 dB.
Additionally, if the online converter attenuation is set to one extreme or the other, that value
becomes the new limiting factor. For example, if the attenuation is set to 19dB, the only
allowable offset will be -3 dB to +1 dB.
Default Value: 00.00
Example: <2/AOF=+2.25’cr’
>0002/AOF=’cr’’lf’
AOF=
AOF?
AOF*
AOF? AOF=+x.xx
or
AOF=-x.xx
(Same format as
Command
arguments)
Attenuation ATT= 5 bytes, Command or Query.
Valid attenuation level (00.00 to 50.00 for X-Band BUC units, 00.00 to 20.00 for all other), in dB,
in 0.25 dB steps as factory default.
Default Value: 00.00
Example: <2/ATT=12.25’cr’
>0002/ATT=’cr’’lf’
Note: Attenuation cannot be changed for the offline unit when in redundancy mode.
ATT=
ATT?
ATT*
ATT? ATT=xx.xx
(Same format as
Command
arguments)
Calibrate LNA
Current
(BDC only)
CLC= none Command or Query.
Stores t he v alue of t he LN A C urrent S upply (i n m A) as a ref erence p oint. The LN A c urrent
alarm/fault point is then based on this point  the LCW setting.
Note: This command will return a mode error if the LCS output has not been enabled first. It will
return 000.0 if the converter has never been calibrated.
Example: <1/CLC=’cr’
>0001/CLC=’cr’’lf’
The CLC query will return the value that was stored during the LNA current calibration.
Example: <1/CLC?’cr’
>0001/CLC=xxx.x
(where xxx.x is calibrated LNA current value in mA)
CLC=
CLC?
CLC*
CLC? CLC=xxx.x
(see Description
of Arguments)