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LA-140 Stationary IR Radiator/Emitter
• Architecturally friendly design with white or grey color options.
• Simple to install using CAT-5 and coax cables.
• Mounting hardware included makes every installation simple.
• Double radiator mounting options for twice the power.
• Delay compensation adjustments built in.
• 25 feet (7.6 m) of CAT-5 and coaxial cable are included with
the radiator.
The LA-140 IR radiator/emitter packs high infrared power in a
small and attractive design, in your choice of grey or white
colors. Designed for easy installation using standard
components, the LA-140 is powered via CAT-5 cabling while
the RF modulated carriers are delivered via standard coaxial
cable. Mounting brackets are included for wall, ceiling, desk, mic
stand, and tripod mounting. Power can be supplied by the LT-82
transmitter or from a separate power supply (LA-205). Built-in
delay compensation prevents signal cancellation (multi-path)
problems and eliminates the piled-up cabling that is required
with other systems. The LA-140 is used for government
compliance (such as ADA), assistive listening, language
interpretation, live theatre, houses of worship, courtrooms,
secure rooms, and auditory description.
Highlights
Con gurations
Accessories
• 10,000 ft
2
(929 m
2
) coverage (one
channel) when used with Listen receivers
(half coverage per radiator with two
channels, quarter coverage with
four channels).
• CAT-5 and coaxial maximum cable length:
1,000 ft (305 m).
• One LT-82 Transmitter or one LA-205
Power Supply can power up to two LA-140
radiators.
Key Speci cations
• LA-140-GY Grey
• LA-140-WH White
with LA-205-01 North America
LA-205-02 Asia, UK
LA-205-03 Europe
4
4
2
3
1
1. LED Indicators The three colored LEDs provide visual indication of power, connectivity,
and the presence of a signal. These LEDs can be deactivated in light sensitive rooms.
2. Mounting Hardware and Cable Installation is quick and easy with the included
mounting hardware for wall, ceiling, desk (shown), mic stand or tripod. Listen also
includes 25 feet (7.6 m) of CAT-5 and coaxial cables (including connectors).
3. RF Section RF from the LT-82 or another radiator is accepted at the RF INPUT BNC. The
RF OUTPUT jack feeds RF to additional LA-140 radiator(s). The delay compensation
adjustment ensures that all RF signals are transmitted by the radiator at the same time,
thereby eliminating receiver drop outs created when signals are out of phase. The
TERMINATION switch terminates the coaxial cable on the last radiator in the daisy chain.
4. Power Section The CAT-5 POWER INPUT connector accepts power from the LT-82
transmitter, from an optional LA-205 power supply or from another LA-140 radiator. The
POWER OUTPUT connector provides power for up to one additional radiator. The dip
switches are for setting options.
Accessories for the LA-140 can be found
on the Stationary IR Accessories page 6.