The LA-140 IR radiator/emitter packs high infrared power in a small and attractive design, with your choice of grey or white packaging. 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 RG-58 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 for auditory description.
Note: This product requires the following for operation:
LT-82 Stationary IR Transmitter
BrochureSpecification SheetManualTech Note 1Tech Note 2
Architectural Specs -
The radiator-emitter shall have a single carrier transmitting area of no less than 10,000 ft� (929 m�) or greater for each radiator specified when used with specified receiver. 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 specified.
Specifications
RF Frequency range - 1 MHz - 5 MHz
Input - BNC Connection -25 dBm to -5 dBm input nominal
Output - BNC Connection - 15 dBu nominal
Compliance - FCC Part 15, Industry Canada, CE, RoHS
Coverage Area - 10,000 square feet when used with Listen Receivers
User Controls - Termination Switch, Delay Compensation Switch, Indicator LEDs on/off, Compatibility Switch
Red LED Indicator - Indicates power is present
Yellow LED Indicator - Indicates no connection to transmitter or radiator
Green LED Indicator - Indicates carrier and pwoer are present and radiator is emitting IR signal
Power Input - RJ-45 connector, 30 VDC, powered from transmitter via CAT-5 cable or optional LA-205 power supply
Power Output - RJ-45 connector, 30 VDC, powers up to one additional radiator (maximum two radiators powered from each LT-82 transmitter or LA-205 power supply)
Number of Emitting Diodes - 84
Emitter Power - 3W
Dimensions (H x W x D) - 5.50 x 8.00 x 2.60 inches
Color - White
Unit Weight - 2.1 lbs
Unit Weight with Wall/Ceiling Mounting Hardware - 2.4 lbs
Shipping Weight - 4.0 lbs
Temperature-Operation - -14 degrees F to +104 degrees F
Temperature-Storage - -4 degrees F to +122 degrees F
Humidity - 0 to 95% relative humidity, non-condensing
(1) Listen Technologies LA-140 - Stationary IR Radiator-White
Mounting Hardware for one unit (allows for wall, ceiling, desk, mic stand, and tripod mounting)
25 ft. of coax cable, matched color
25 ft. of CAT-5 cable, matched color
Quick Reference Card