Williams Sound WIR TX75-S manual Infrared Transmitter Specifications, Model WIR TX75 Master

WIR TX75 Two-Channel Infrared Transmitter

Infrared Transmitter Specifications

Model WIR TX75 (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 (0.3kg)
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, 50-60Hz, 24W; 48VDC output
DC Power Input:	2.5mm ID barrel connector, 48 VDC, 0.4A center positive
Power Indicator:	Green LED
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
Master Only Coverage Area	5,000 sq. ft in single-channel mode with the RX22-4 receiver (464 sq. m)
(minimum, 1-Ch mode):	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)
Audio Inputs / Controls:	Line inputs: RCA jack for Ch1 and Ch2 accept line level, balanced or unbalanced audio
	Line in balanced/unbalanced switch: selects balanced or unbalanced line level audio for RCA jacks
Microphone input:	3.5 mm, stereo jack with signal and bias connected to tip, electret microphone compatible (4 VDC bias supply with 2.7k ohm
	series resistor)
Microphone gain adjust:	Rotary potentiometer
Microphone channel switch:	selects microphone input to Ch1 or Ch2
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 48VDC 0.4A power, baseband RF and a bi-directional RS-485 bus for control and status
	communications
Slave Status Indicators	Green: Power/Unit Status
(on “to slave” jacks):	Yellow: Transmit/Cable Status
Signal-to-Noise Ratio:	70 dB, (line input)
Frequency Response:	95Hz to 17.6kHz, -3dB re 1kHz (line inputs)
	125Hz to 17.0KHz, -3dB re 1kHz (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:	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.

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14 MAN 166C