Comtech EF Data LBC-4000 Installation And Operation Manual page 49

LBC-4000 L-Band Up/Down Converter System
Remote Control
Command
Parameter (Instruction
Type Code and
qualifier)
Attenuation ATO_A_SY.Z
Offset
Mute State MUT_
Slope Adjust SSA_
Arguments for
Description of arguments
Command or
(Note that all arguments are ASCII numeric
Response to
codes, that is, ASCII codes between 48 and 57)
Query
6 bytes, Command or Query
alphanumeric Used to control or query attenuation offset.
Applicable only on Slot A. Slot B will return error.
Example:
ATO_A_+2.3 <Enter> = Command
Syntax:
ATO_A_SY.Z <Center>
Where:
S=Sign (+ or -)
Y=Number between 0 and 5
Z=Number between 0 and 9 (cannot be greater
than 5.0)
Note:
1. If (displayed attenuation + offset) < 0, actual
attenuation will be set to 0dB.
2. If (displayed attenuation + offset) > maximum
attenuation, actual attenuation will be set to
maximum attenuation.
3. Actual attenuation is the sum of Attenuation
displayed on front panel and Offset.
5 bytes, Command or Query.
alpha Mutes/Unmutes the converter:
MUT_x_yyy
Where: x = 'A' (converter A) or 'B' (converter B)
yyy = ON (mute) or OFF (unmute)
Example: MUT_A_OFF
Unmutes converter A
5 bytes, Command or Query.
alphanumeric SSA_x_y.y
Where: x = 'A' (converter A) or 'B' (converter B)
y.y = Converter slope adjust level, valid from 0.0 to
1.0 with 0.1 resolution.
Example: SSA_B_0.3
Converter B slope adjust is set to 0.3
MN/LBC4000.IOM
Revision 2
Response to
Command
(target to
controller)
ATO_A_SY.Z
Same as command
Same as command
A-9
Query Response to
(Instruction Query
Code and (target to
qualifier) controller)
ATO_A_<Enter> See Description
MUT_x_ MUT_x_yyy
(see description of
arguments)
SSA_x_ SSA_x_
(see description of
arguments)