15
WIR TX75 Two-Channel Infrared Transmitter
MAN 166C
Infrared Emitter Specifications
Model WIR TX75-S (Slave)
Dimensions, Weight:
10.0” W (25.4 cm) x 3.1” D (7.9 cm) x 1.5” H (3.8 cm) w/o faceplate or 2.5” H (6.4 cm) w/faceplate, 0.6 lbs (0.3kg)
Color:
Black with silver colored silk screen and silver colored faceplate
Optional: white colored faceplate
Sleep/Power Save Mode:
Shuts off carrier when no audio is present for 3 minutes
Modulation:
FM Wideband, ±50kHz deviation max, 50 μS pre-emphasis
Carrier Frequencies:
TX-75: 2.3MHz (Ch1) and 2.8MHz (Ch2).
TX-75b: 3.3MHz (Ch1) and 3.8MHz (Ch2).
Default at power on = carriers off. Carriers are automatically enabled upon presence of audio.
Emitter IR Power:
0.7 W
Slave Coverage Area
(minimum, 1-ch mode):
Note: Slave emitter cannot be used without a master transmitter, but if the slave emitter is aimed so that its coverage area does
not overlap that of the master, on its own it will provide:
5,000 sq. ft in single-channel mode with the RX22-4 receiver (464 sq. m)
3,000 sq. ft in single-channel mode with the RX15-2 receiver (279 sq. m)
2,000 sq. ft in single-channel mode with the RX18 receiver (186 sq. m)
Slave Coverage Area
(minimum, 1-ch mode)
If slave transmitters are aimed to maximize coverage area (so that their coverage areas minimally overlap that of the master):
10,000 sq. ft in single channel mode with the RX22-4, a master and (1) slave transmitter (929 sq. m)
15,000 sq. ft in single channel mode with the RX22-4, a master and (2) slave transmitters (1,393 sq. m)
Indicators On/Off:
2-position switch turns on/off indicator lights
Signal-to-Noise Ratio:
70 dB, (line input)
Frequency Response:
95Hz to 17.6kHz, -3dB re 1kHz (line input)
125Hz to 17.0kHz, -3dB re 1kHz (microphone input)
Total Harmonic Distortion:
<1% (1 kHz, nominal deviation, line or microphone input)
From Master Input
8p8c RJ45 connector input provides 48VDC 0.4A power, baseband RF, and a bi-directional RS-485 bus for control and status
communications.
Slave Extension Cable:
CAT-5e (or better) cable, maximum 100’ length, with RJ-45 8P8C male connector on each end, TIA568B
Slave Status Indicators
(on “to slave” jacks):
Green: Power/Unit Status
Yellow: Transmit/Cable Status
Operating Requirements:
0-50° C (32°-122°F)
Mounting Kit:
Wall or Ceiling mount: BKT 024 Omnidirectional mount
Optional: slave linking bar (MLB 003)
Warranty:
2 Years
Approvals:
CE, C-tick, FCC, Industry Canada, WEEE, RoHS, CB Scheme
Compatible Receivers:
WIR RX22-4, WIR RX18, WIR RX15-2
NOTE: Specifications subject to change without notice.
Visit our website for the latest specifications and publications: www.williamssound.com
