Listen Technologies LA-140, Руководство по конструкции

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LA-140
LT-82
Design Guide Design Guide
LA-140
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Specifications 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 ft2 (929 m2) when used with Listen Receivers
Controls User Controls
Termination Switch, Delay Compensation Switch, Indicator LEDs on/off,
compatibility switch.
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 op-
tional 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 sup-
ply)
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
•Specifications are subject to change without notification.
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The radiator-emitter shall have a single carrier transmitting area of no less than 10,000 ft
2
(929
m 2
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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
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