Comtech EF Data MBT-4000B Installation And Operation Manual page 53

Multi-Band Transceiver System
Remote Command
Command
Valid on
Parameter (Instruction
MBT,
Type Code and
BDC, or
qualifier)
BUC
LNA/LNB Current LCW=sxx MBT
Window BDC
LNA/LNB Fault LFL=sx MBT
Logic BDC
Arguments for Description of arguments
Command or (Note that all arguments are ASCII numeric codes, that
Response to
Query between 48 and 57)
s=1 byte, Command or Query.
value of 1, 2 This command allows the user to set the alarm window in ±
1=LNA A
% of the calibrated LNA/LNB bias Current. Valid inputs are
2=LNA B
20 to 50 in increments of 1%. In addition, setting the value
to 99 disables the alarm function.
xx=2 bytes,
numeric
Default is disabled.
Example: LCW=230, set alarm window for the LNB bias tee
to ± 30%.
s=1 byte, Command or Query.
value of 1, 2 Allows LNA/LNB Fault Logic to contribute to the summary
1=LNA A fault relay as follows:
2=LNB bias tee Source
1=LNA A (Aux Comm 1)
x=1 byte, 2=LNB bias tee
Value of 0, 1
0 = Disable Example: LFL=21 would generate a fault if the measured
1 = Enable current for the bias tee varied from the calibrated operating
point stored by the CLC=2 command more the % allowed
by the LCW=2xx command
Revision 0
MN/MBT4000B.IOM
is, ASCII codes
Enable
0 = Disabled
1 = Enabled
A-17
Query
Response to
(Instruction
Command
Code and
(target to controller)
qualifier)
LCW= (message ok) LCW?s
LCW? (received ok, but
invalid arguments
found)
LCW* (message ok, but
not permitted in current
mode)
LCW! (command not
accepted by BUC or
BDC sub-units)
LFL= (message ok) LFL?s
LFL? (received ok, but
invalid arguments s=1 byte,
found) Value of 1, 2
LCS* (message ok, but
not permitted in current
mode)
LFL! (command not
accepted by BUC or
BDC sub-units)
Response to
query
(target to
controller)
LCW=sxx
(same format
as command
arguments)
LFL=sx
(same format
as command
arguments)