Rated 4.9 (120 reviews)
The Listen Technologies LA-141 is a ListenIR expansion radiator that extends the coverage of an LT-84 infrared transmitter. It is powered and fed by a single CAT-5e cable from the LT-84, with switchable delay compensation to prevent signal cancellation where coverage overlaps. Use it in larger or awkwardly shaped courtrooms, council chambers, theatres and lecture halls.
2,787 m²
Coverage, 1 channel
1x CAT-5e
Power and signal
30 m
Max cable
Up to 4
Per LT-84
System limitsThe LA-141 only works with an LT-84. Each LT-84 output feeds a chain of up to two LA-141s, four in total, with a maximum of 30 m of CAT-5e 24 AWG per run.
Features
Adds up to 2,787 m² of single-channel coverage with LR-4200-IR receivers
Power and RF signal over one CAT-5e cable from the LT-84
Four-position delay compensation switch to prevent dropouts between radiators
Pass-through RJ45 to daisy-chain a second LA-141
Carries both LT-84 channels
Indicator lights can be switched off
Mounting hardware for wall, ceiling or table supplied
Specifications
| Coverage | 2,787 m² single channel with LR-4200-IR/LR-5200-IR; 697 m² with LR-42/LR-44 |
| IR emitter power | 1.49W |
| Carrier frequencies | 2.3, 2.8, 3.3, 3.8 MHz (2 channels) |
| Connections | RJ45 expansion link in and out |
| Power | 12V DC from LT-84 over CAT-5e, 600 mA |
| Cable | CAT-5e 24 AWG, 30 m max |
| Delay compensation | 4-position switch (0 to 3) |
| Dimensions (H x W x D) | 381 x 272 x 105 mm |
| Weight | 0.3 kg |
| Operating temperature | -10 to 40°C |
