Williams Sound WIR SYS 7522 User Manual
INFRARED SPECIFICATION DATA
Courtrooms • Conferences • Houses of Worship • Universities • Cinema
WIR SYS 7522
Mid-Range Infrared System
This system features the NEW WIR TX75 infrared transmitter,
ensuring participants in a conference room, courtroom,
classroom or other mid-sized venue receive direct, clear
communication of your message without sacricing security.
Includes WIR RX22-4 receivers–ideal for single-or two-channel
applications. The sleek and stylish TX75 is designed to maximize
coverage area up to 5,000 square feet in single-channel mode.
Two additional slaves (sold separately) can be added for
additional coverage of up to 5,000 square feet each (for total
coverage of up to 15,000 square feet). Placing additional slaves
in the same room increases coverage and enhances freedom of
movement. A single CAT-5 cable carries both power and signal
to slaves–truly a one-cable connection. Mounting bracket and
power supply are included.
System Includes:
(1) WIR TX75 infrared transmitter
(3) WIR RX22-4 four-channel selectable,
infrared receivers
(3) HED 021 folding headphones
(2) NKL 001 neckloops
(6) BAT 001 AA alkaline batteries
(1) IDP 008 ADA wall plaque
(1) BKT 024 wall / ceiling mounting bracket
(1) TFP 046 international power supply with WLC 004 U.S. mains
AC plug
© 2012, Williams Sound, LLC MCAT 155C
Mid-range Infrared System
WIR TX75 Specications
Dimensions, Weight:
Power Supply:
DC Power Input:
Power Indicator:
Sleep/Power Save Mode:
Modulation:
Carrier Frequencies:
Emitter IR Power:
Master Only Coverage Area
(minimum, 1-Ch mode):
Audio Inputs / Controls:
Microphone input:
Microphone gain adjust:
Microphone channel switch:
Audio indicators:
Indicators On/Off:
“to slave” Output/Input:
Slave Status Indicators
(on “to slave” jacks):
Signal-to-Noise Ratio:
Frequency Response:
Total Harmonic Distortion:
Operating Requirements:
Mounting Kit:
Warranty:
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
Desktop style international power supply with IEC line cord, 100-240 VAC input, 50-60Hz, 24W; 48VDC output
2.5mm ID barrel connector, 48 VDC, 0.4A center positive
Green LED
Shuts off carrier when no audio is present for 3 minutes
FM Wideband, ±50kHz deviation max, 50 μS pre-emphasis
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.
0.7 W
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)
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
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)
Rotary potentiometer
selects microphone input to Ch1 or Ch2
Yellow LED blinks at nominal audio level. One per channel
2-position switch turns on/off indicator lights
(2) 8p8c RJ45 connectors output 48VDC 0.4A power, baseband RF and a bi-directional RS-485 bus for control and status
communications
Green: Power/Unit Status
Yellow: Transmit/Cable Status
70 dB, (line input)
95Hz to 17.6kHz, -3dB re 1kHz (line inputs)
125Hz to 17.0KHz, -3dB re 1kHz (microphone input)
<1% (1 kHz, nominal deviation, line or microphone input)
0-50° C (32°-122°F)
Wall or Ceiling mount: BKT 024 Omnidirectional mount
Optional: slave linking bar (MLB 003)
2 Years
POWER
INDICATOR
CH 1 AUDIO
LEVEL INDICATOR
MIC
ADJUSTMENT
(YELLOW)
POWER IN MIC CHANNEL
MIC IN
SELECTOR
SLAVE TRANSMIT
POWER INDICATOR
RCA IN RCA IN
(2.3) TX-75 (2.8)
(3.3) TX-75b (3.8)
(YELLOW)
CH 2 AUDIO
LEVEL INDICATOR
(YELLOW)
LINE IN BALANCED/
UNBALANCED SELECTOR
TX75 BUS
OUT TO
SLAVE (1)
SLAVE POWER
INDICATOR
(GREEN)
TX75 BUS
OUT TO
SLAVE (2)
INDICATOR
LIGHTS (ON/OFF)
A139
© 2012, Williams Sound, LLC MCAT 155C
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