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 sacrificing 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 RX22-4 Receiver
Receiver Style: Body-Pack, dual-lens detector, lanyard
Size: 4.1” L x 2.85” W x 1.2” H (104.1 mm x 72.4 mm x 30.4 mm)
Weight: 4.5 oz (127 g) with batteries
RX22-4 TOP
CHANNEL
SELECTOR
EARPHONE
JACK
Color and Material: Black
Lanyard: 3 ft (.91 m), allows receiver to be worn around the neck
Operating Temperature: -10° C to +50° C
OFF
Battery Type: 2 x AA, alkaline (BAT 001) or NiMH (BAT 026)
Battery Life: Alkaline: 60 hours, NiMH: 30 hours/charge
Battery Drain: 25 mA, nominal
ON/OFF
VOLUME SWITCH
"ON"
INDICATOR
Charging Contacts: For use only with CHG 3512
Carrier Frequency: Channel 1: 2.3 MHz, Channel 2: 2.8 MHz
Channel 3: 3.3 MHz, Channel 4: 3.8 MHz
De-Emphasis: 50 uS
FM Deviation: ±50 kHz
RX22-4 FRONT
Signal-to-Noise Ratio: 60dB min.
Squelch: Receiver squelches (mutes) at 40 dB S/N ratio
Frequency Response: 25 Hz to 16 KHz, +1 dB, -3 dB, electrical response
Total Harmonic Distortion: Less than 1%, electrical response
Controls: ON/OFF/VOLUME: combination thumbwheel knob
Channel Selector: four-position rotary switch
Indicators: Red LED “ON” indicator, flashes to indicate Low battery
Audio Output Jacks: 3.5 mm stereo mini phone jack Accepts 3.5 mm mono or stereo phone plug
Audio Output Power: 15 mW max at 32 Ω
Acoustic Output: 125 dB SSPL90 with HED 021; 110 dB SSPL90 w/ EAR 013
Sensitivity: Better than 1 nW/cm2 for 40 dB signal-to-noise ratio
Approvals: CE, FCC, RoHS, WEEE
Warranty: 5 years on receiver, 90 days on accessories
Compatible Headphones/ Mono or stereo, 8-32 ohms, 3.5 mm mini phone plug, HED 021, HED 026,
Earphones: EAR 013, EAR 014, EAR 022, NKL 001
A137
© 2012, Williams Sound, LLC MCAT 155C
Mid-range Infrared System
Bid Specs
WIR TX75/b
WIR RX22-4
The Williams Sound WIR TX75 Infrared Transmitter shall consist
of an all in one modulator and emitter operating on 2.3MHz and/
or 2.8MHz. The WIR TX75b shall operate at 3.3 MHz and/or 3.8
MHz. The carrier frequency shall use 50kHz deviation and 50 μS
pre-emphasis.
The receiver shall be a body-pack type with IR detector lens
behind face of the unit. The unit shall have a lanyard for hands-free
operation. The receiver shall have a rotary-type volume control. The
receiver shall operate for 60 hours with two AA alkaline batteries
and for 30 hours per charge with NiMH AA batteries. The receiver
shall be charged without battery removal via charger contacts in
the case. A drop-in charger accessory shall recharge the batteries
in 16 hours when used with CHG 3512 charger. The receiver
shall be housed in an impact resistant plastic case with a hinged
battery door that does not separate from the receiver. The receiver
shall receive 2.3 MHz, 2.8 MHz, 3.3 MHz or 3.8 MHz modulated
IR signals with 50 μS de-emphasis. The receiver shall have a
3.5 mm stereo phone jack and accommodate low-impedance
mono or stereo earphones and headphones. The receiver shall
accommodate neckloop telecoil couplers. The receivers shall
provide 125 dB SSPL90 output with HED 021 headphone and 110
dB SSPL90 with EAR 013 earbud-type earphone.
The TX75 shall have a minimum coverage of 5,000 sq ft with the
WIR RX22-4 receiver in single channel mode.
The TX75 shall be housed in a heavy-duty black plastic enclosure
with a durable infra-red transparent front lens. It shall be convection
cooled without fans. The Transmitter includes an omni-directional
mounting bracket for various permanent installations.
The TX75 shall have a line level RCA input for each of the channels.
Each channel shall have an audio input level LED. There shall be
a single 3.5mm microphone input with gain control. The mic input
shall have a channel selector switch.
The Transmitter shall have a switch to turn off all indicator LED’s.
There shall be a switch for selecting either balanced or unbalanced
line level inputs.
The system electrical frequency response shall be 25 Hz to 16 kHz,
+1, -3 dB and the S/N ratio shall be 60 dB. The receiver shall have
CE, FCC RoHS and WEEE approval. The receiver shall be covered
by a five-year parts and labor warranty, excluding earphones,
headphones, batteries and chargers.
The TX75 shall have two RJ45 outputs to supply power and
baseband signal to two WIR TX75-S slave emitters via CAT-5 cable.
A single CAT-5 cable supplies power, signal and digital control to the
slave unit up to 100 ft from the Transmitter.
The receiver shall be the Williams Sound model WIR RX22-4.
The Transmitter shall be powered by a 48VDC universal power
supply, 50-60Hz, 100-240 VAC input, 24W.
The TX75 shall be covered by a two-year parts and labor warranty,
90 days on accessories.
This Transmitter shall be the Williams Sound model WIR TX75.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
Domestic Sales
International Sales
Williams Sound
International Sales Department
Williams Sound
10300 Valley View Rd.
Eden Prairie, MN 55344
Ph: 800-328-6190 / 952-943-2252
FAX: 952-943-2174
10300 Valley View Rd.
Eden Prairie, MN 55344 USA
Phone: +1 952 943 2252
Fax: +1 952 943 2174
Email: [email protected]
Email: [email protected]
© 2012, Williams Sound, LLC MCAT 155C
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