Listen LA-140 Guide de référence

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).

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.

For further details regarding your Listen products please visit our website at

www.listentech.com Resources/Support/Manuals.

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