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WIR TX75 C/D Infrared Transmitter
Infrared Transmitter Specifications
Model WIR TX75 C/D PRO (Master)
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 (0.3 kg)
Color:
Black with silver colored silk screen and silver colored faceplate
Optional: white colored faceplate
Power Supply:
Desktop style international power supply with IEC line cord, 100-240 VAC input, 50-60 Hz, 24 W; 48 VDC output
DC Power Input:
2.5 mm ID barrel connector, 48 VDC, 0.4 A center positive, or
Either “to slave” RJ45 jack using POE over Cat5e/6
Power Indicator:
Green LED
Sleep/Power Save Mode:
Shuts off carrier when no audio is present for 3 minutes
Modulation:
FM Wideband, ±50 kHz deviation max, 50 μS pre-emphasis
Carrier Frequencies:
WIR TX75 C: 2.3 MHz (Ch 1) and 2.8 MHz (Ch 2).
WIR TX75 D: 3.3 MHz (Ch 1) and 3.8 MHz (Ch 2).
Default at power on = carriers off. Carriers are automatically enabled upon presence of audio.
Emitter IR Power:
0.7 W
Master Only Coverage Area
(minimum, 1-Ch mode):
12,000 sq. ft (1,115 sq. m) in single-channel mode with the RX 22-4 receiver
6,000 sq. ft (557 sq. m) in single-channel mode with the RX 15-2 receiver
4,000 sq. ft (372 sq. m) in single-channel mode with the RX 18 receiver
Audio Inputs / Controls:
Line inputs: Phoenix Contact® jack for Ch1 and Ch2 accept line level, balanced or unbalanced audio
Microphone input:
3.5 mm, stereo jack with signal and bias connected to tip, electret microphone compatible (4 VDC bias supply with 2.7 k ohm series
resistor)
Microphone gain adjust:
Rotary potentiometer
Microphone channel switch:
Selects microphone input to Ch 1 or Ch 2
Audio indicators:
Yellow LED blinks at nominal audio level. One per channel
Indicators On/Off:
2-position switch turns on/off indicator lights
“to slave” Output/Input:
(2) 8p8c RJ45 connectors output 48 VDC 0.4 A power, baseband RF and a bi-directional RS-485 bus for control and status
communications
Can also be used as a POE connection to power the master unit (and one slave) when POE is connected to one of these jacks
Slave Status Indicators
(on “to slave” jacks):
Green: Power/Unit Status
Yellow: Transmit/Cable Status
Signal-to-Noise Ratio:
70 dB, (line input)
Frequency Response:
95 Hz to 17.6 kHz, -3 dB re 1 kHz (line inputs)
125 Hz to 17.0 KHz, -3 dB re 1 kHz (microphone input)
Total Harmonic Distortion:
<1% (1 kHz, nominal deviation, line or microphone input)
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:
5 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
