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LA-140 Specications
Specications LA-140
RF
Frequency Range 1 MHz - 5 Mhz
Input BNC Connection. -25dbm to -5dbm input nominal
Output BNC Connection. -15 dbm nominal
Compliance FCC Part 15, Industry Canada, CE, RoHS
Coverage Area 10,000 ft
2
(929 m
2
) when used with Listen LR-42 and LR-44.
Controls User Controls
Termination Switch, Delay Compensation Switch, Indicator LEDs on/
o, Listen Mode.
Indicators
Red LED Indicates power is present
Yellow LED Indicates no connection to transmitter or radiator
Green LED
Indicates carrier and power are present and radiator is emitting IR
signal
Power
Input
RJ-45 connector. 30VDC, powered from transmitter via CAT-5 cable or
optional LA-205 power supply.
Output
RJ-45 connector. 30VDC, powers up to one additional radiator.
(Maximum (two) 2 radiators powered from each LT-82 transmitter or
LA-205 power supply)
Emitter Power 3 Watts
Physical
Dimensions (H x W x D) 5.50 x 8.00 x 2.60 in. (140 x 203 x 66 mm)
Color LA-140-GY (Grey), LA-140-WH (White)
Unit Weight 2.1 lbs (.95 kg)
Unit Weight with Wall/ Ceiling
Mounting hardware
2.35 lbs (1.05 kg)
Shipping Weight 4.0 lbs. (1.8 kg)
Environmental
Temperature - Operation -10 C (14 F) to +40 (104 F)
Temperature - Storage -20 C (-4 F) to +50 (122 F)
Humidity 0 to 95% relative humidity, non-condensing
•Specications are subject to change without notication.
Architectural Specication
The radiator-emitter shall have a single carrier transmitting area of no less than 10,000 ft
2
(929 m
2
) or greater for each radiator specied when used with specied LR-42 and LR-44. The
radiator shall be powered via CAT-5 cabling and the RF from the transmitter shall be carried
by 50 ohm coaxial cable. The radiator shall have three indicating LEDs for power, no carrier
present and carrier present. The radiator LEDs shall be deactivated after 30 minutes if there is
no audio signal present from the transmitter. The radiator shall come in a white or grey color
and shall include all of the mounting hardware capable of mounting the radiator on a wall, on
a ceiling, in a corner, on a desk, on a mic stand, or on a tripod. The Listen LA-140 is specied.