Comtech EF Data MBT-5000 User's Installation And Operation Manual page 121

MBT-5000 L-Band Up/Down Converter System
Serial-based Remote Product Management
Command Arguments for
Parameter (Instruction Command or
Type Code and Response to
Qualifier)
LNA Current LCS= 1 byte
Source
(BDC only)
LNA Current LCW= 2 bytes
Window
(BDC only)
Low Forward LPT= 5 bytes
Power
Threshold
(Only for the
converter which
supports power
monitor)
Mute State MUT= 1 byte
(Note that all arguments are ASCII numeric codes between 48 and 57)
Query
Command or Query.
Enables or Disables the LNA current source.
Note: LCS must be enabl ed before the LNA current can be calibrated with the CLC command.
LCS is always off in the redundancy mode.
0 = Disable
1 = Enable
Default Value: 0
Example: <1/LCS=1'cr'
>0001/LCS='cr''lf'
Command or Query.
Allows the user to set the alarm window in % of the calibrated LNA Current. Valid inputs are 20
to 50 in increments of 1%.
Default Value: 30
Example: To set the alarm window to 30%:
<1/LCW=30'cr'
>0001/LCW='cr''lf'
Command or Query.
Allows the user to set the threshold for the low forward power alarm/fault in dBm. If the forward
power drops below the specified value (while the unit is online, unmuted and PLL locked), the
alarm/fault w ill be i ndicated. S etting t his param eter t o -20.0 e ffectively disables t he t hreshold.
Valid v alues f or t his par ameter ar e be tween t he uni t's s pecified P 1dB pow er l evel, and P 1dB
minus 19dB . F or example, for a u nit with + 12dBm at P 1dB, the r ange w ould be + 12.0 to -7.0
dBm.
Default Value: -20.0
Example: <2/LPT=+10.0'cr'
>0002/LPT='cr''lf'
Note: This command can only be queried for the offline unit in the redundancy mode.
Command or Query.
Mutes the unit, where:
0 = Disabled (Not Muted)
1 = Enabled (Muted)
Default Value: 0
Example: <2/MUT=1'cr'
>0002/MUT=1'cr''lf'
Note: Mute State cannot be changed for the offline unit when in redundancy mode.
Description of arguments
7–21
MN-MBT5000
Revision 4
Response to Query
Response to query
Command (Instruction
(Target to Code and
Controller) Qualifier)
LCS= LCS? LCS=x
LCS?
LCS* (same format as
Command
arguments)
LCW= LCW? LCW=xx
LCW?
LCW* (same format as
Command
arguments)
LPT = LPT? LPT=xxx.x
LPT?
LPT * (same format as
Command
arguments)
MUT= MUT? MUT=x
MUT?
MUT* (same format as
Command
arguments)
(Target to
Controller)