Listen LA-140 Referenzhandbuch
LA-140 Quick Reference Card
Power (Red):
This red LED is lit when
there is power to the radiator.
No Connection (Yellow):
This yellow LED is lit when the radiator
is not connected to a transmitter or
radiator.
Carrier Present (Green):
This green LED is lit when there is
signal present to the radiator.
During normal operation the red
and green LEDs will be continuously
lit (unless SW1 is off).
© 2008 Listen Technologies Corporation®All Rights Reserved 031808
LA-140 Quick Reference Card
RF Input:
Input RF signal from a
transmitter or radiator here.
RF Output:
Output RF signal to an
additional radiator here. Power Input: Connect power here.
Delay Compensation Switch:
Adjust the amount of signal delay
from the radiator here. In single
radiator systems the position of this
switch does not matter, in multiple
radiator systems this switch must be
set properly.
Termination Switch: If there is no
RF being output from the RF
Output connection, this switch
must be in the “ON” position.
Power Output: Output power here.
LED Indicator
Shutoff Switch
(SW1): Controls
LED indicators on
front of radiator.
Compatibility with Other
Manufacturer’s Switch
(SW2): If using a Listen
LA-140 Radiator with
another manufacturer’s
transmitter/modulator
it is necessary to put
this switch in the “ON”
position. IMPORTANT:
Always ensure SW2 is in
the “OFF” position when
using a Listen LT-82
Transmitter.
© 2008 Listen Technologies Corporation®All Rights Reserved 031808
For further details regarding your Listen products please visit our website at
www.listentech.com Resources/Support/Manuals.
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