Listen Technologies LT-141, User Manual, Page: 20 / 24

PAGE 19
LA-141 Listen IR Expansion Radiator
Power Power Supply 12 VDC, provided via LT-84 Expansion Link Output RJ-45s
Current Draw 600 mA per LA-141, maximum of two (2) LA-141s daisy chained
with CAT-5e cable 24 AWG to each LT-84 Expansion Link Output
RF Carrier Frequencies 2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz
Number of Channels Two (2) Channels
Modulation FM Wideband, ±50kHz deviation max, 50 μS pre-emphasis
IR Power 1.49 W
Coverage Area 30,000 ft
2
(2787 m
2
) single channel with LR-4200-IR/LR-5200-IR
receivers or 7,500 ft
2
(697 m
2
) with LR-42/LR-44 receivers.
Expansion Link In/Out Two (2) RJ-45 connectors, CAT-5e cable 24 AWG, dasiy chain of
100 ft. maximum cable length
Power Save Mode Shuts off carrier when no audio is present for 15 minutes
Controls Indicator Lights Two (2) position switch - Indicator Lights OFF, Indicator Lights ON
On/Off Switch
Indicators Green LEDs - Power Solid Green indicates power is applied to unit
Indicator RJ-45
Amber LEDs - Status Solid Amber indicates carrier is present and IR is being transmitted
Indicator RJ-45
Physical Color Black
Dimensions (H x W xD) 1.5 x 10.7 x 3.9 in. (3.81 x 27.2 x 10.5 cm)
Weight 0.6 lbs. (0.28 kg)
Shipping Weight 3.0 lbs. (1.4 kg)
Environmental Temperature - Operation 14 °F (-10 °C) to +104 °F (40 °C)
Temperature - Storage -4 °F (-20 °C) to +122 °F (50 °C)
Relative Humidity 0 to 95% relative humidity, non-condensing
Compliance Standards FCC Part 15, Industry Canada, CE, RoHS, WEEE, CUL
LA-141 Specifications