Williams Sound SoundPlus Infrared System WIRTX900 - Manual (Page 7)

© 2011, Williams Sound, LLC CAT 089I
Bid Specs:
Modulator, Model MOD 232
The infrared system shall consist of separate modulator and emitter units, with portable receivers. The modulator unit shall be a half-rack
style, metal enclosure. A rack panel shall be available to mount one or two modulator units within a single EIA rack space. An adjustable
floor stand and mounting bracket shall be available to mount the modulator and emitter together for portable operation.
The modulator shall provide two channels of selectable FM carrier signals; 2.3/2.8/3.3/3.8 MHz, so that a single modulator can be used
to simultaneously transmit up to two channels, and two modulators can be linked together to transmit up to four channels simultaneously.
The carrier signals shall use 50 kHz deviation and 50 µS pre-emphasis. The carrier signals (baseband) shall be transmitted to one or more
emitters by 50 ohm RG58 coaxial cable with BNC-type connectors. A BNC–type baseband input jack and baseband output jack shall be
provided on the modulator. The modulator shall be powered by an external 24 VAC, 10 VA, 50-60 Hz power supply, connected via a three-
pin Molex power connector.
It shall have a rocker-type power switch, power LED indicator, four carrier indicator LEDs and two bar graph-type LED audio indicators. The
modulator shall have a modulated IR LED on the front panel for testing purposes, and a headphone jack that accommodates mono and
stereo 1/4” headphones, and channel monitoring switch. The modulator shall have two rotary audio input level controls, and a screwdriver
adjustable control for varying the input compression from 1:1 or 2:1. The modulator shall have two timers that automatically shut off the
carriers when there is no audio signal present for 15 minutes. The modulator shall have two combination input jacks that accept 3-pin XLR
plugs for balanced microphone input or 1/4” TRS plugs for balanced or unbalanced line-level inputs. The XLR inputs shall be low
impedance, accept signal levels from 100 µV to 90 mV and supply 15 V simplex power per DIN45596. The TRS jacks shall accept balanced
or unbalanced audio signal levels from 21 mV to 10 V. The modulator shall have CE, FCC, RoHS, and WEEE approval and carry a five-year
parts and labor warranty.
The modulator shall be the Williams Sound model MOD 232.
Emitter, Model TX9
The emitter shall be contained in a metal enclosure with a shatter-resistant lens. The emitter shall include an omni-directional mounting
bracket for permanent installation and a bracket shall be available for mounting on a floor stand for portable installations. Each emitter
shall be powered by a 24 VAC, 50 VA, 50-60 Hz power supply. The power connector shall be a 3-pin Molex-type. The emitter shall have a
BNC-type 50 ohm baseband input and a BNC-type baseband 50 ohm output jack. The emitter shall have a repeater circuit to allow multiple
numbers of emitters to operate from the baseband signal. The emitter shall have a visible LED indicator for power and for baseband signal.
Carrier frequency is 50KHz to 8 MHz. The emitter shall shut off when the baseband signal is not present. The emitter shall provide an
effective coverage area of up to 28,000 sq ft (2,600 sq m) in single channel mode and up to 18,000 sq ft (1,700 sq m) in two channel mode
when using the RX22-4 receiver. The emitter shall provide an effective coverage area of up to 10,000 sq ft (929 sq m) in single channel
mode when using the RX18 receiver.The emitter shall be convection-cooled, without fans. The emitter shall have CE, FCC, RoHS, and
WEEE approval and carry a five-year warranty on parts and labor.
The emitter shall be Williams Sound model WIR TX9.
Four-Channel Receiver, Model RX22-4
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 8 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 110 dB SSPL90 output with EAR 013 earbud-type earphone.
The system electrical frequency response shall be 25 Hz to 16 kHz, +1, -3 dB and the signal-to-noise 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 receiver shall be the Williams Sound model WIR RX22-4 or RX18.
Domestic Sales
Williams Sound
10300 Valley View Rd
Eden Prairie, MN 55344
Ph: 800-328-6190 / 952-943-2252
FAX: 952-943-2174
Email: [email protected]
Web: www.williamssound.com International Sales
International Sales Department
Williams Sound
10300 Valley View Rd
Eden Prairie, MN 55344 USA
Phone: +1 952 224 7791
Fax: +1 952 943 2174
Email: [email protected]
Web: www.williamssound.com
800.843.3544 / [email protected] / www.williamssound.com
SoundPlus ® Infrared System
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
*DISCLAIMER: FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE