Williams Sound WIR TX90 User manual

WIR TX90
SoundPlus® Infrared Transmitter
The TX90 two channel IR transmitter combines modulator and
emitter technology into a single operating unit, which reduces
operating cost and eliminates precious rack space. The TX90
transmitter produces a wide-angle infrared signal that concentrates
the IR energy efciently in the listening area. Operating on the
2.3-3.8 MHz bandwidth, the TX90 is less susceptible to radio
and lighting interference. Each TX90 transmitter can cover up
to 28,000 sq ft (2,600 sq m) in single-channel operation. The
coverage area can be easily increased by connecting additional
TX9 emitters. A wall/ceiling omnidirectional mount is included, and
stand kits are available for portable operation.
INFRARED SPECIFICATION DATA
Cinemas • Simultaneous Interpretation • Audio Description • Conferences • Multi-Media Rooms
Boardrooms • Courtrooms • Schools • Universities • Churches

Dimensions, Weight: 11.25” W x 6.25” H x 2.125” D (28.6 cm x 15.9 cm x 5.4 cm), 1.8 lbs (0.8 kg)
Color: Black with white legends, black acrylic lens (Available in white)
Power Supply: Wall Transformer, 24 VAC, 50-60 Hz, 35 VA, 3-pin MOLEX Connector
North America: TFP 010, UL/CSA
Europe: TFP 027-01, 2-pin Schuko plug, CE
UK: TFP 027-02, 3-pin UK plug, CE
Power Cable: NEC Class 2 wiring, two-conductor, 18 ga., 200’ (61m) max. length
Modulation: FM Wideband, +50kHz deviation max., 50uS pre-emphasis
Carrier Frequency: Channel A: Selectable, 2.3/2.8 MHz,
Channel B: Selectable, 3.3/3.8 MHz
Emitter IR Power: 3.5 watts
Coverage Area: 28,000 sq. ft. (2600 sq. m) in single channel mode when using the RX22-4 Receiver
18,000 sq. ft (1700 sq. m) in two channel mode when using the RX22-4 Receiver
11,000 sq. ft (1000 sq. m) in four channel mode when using the RX22-4 Receiver
3,500 sq. ft (325 sq. m) in single channel mode when using the RX15-2 Receiver
3,063 sq. ft (285 sq. m) in single channel mode when using the RX18 Receiver
(See coverage area diagrams)
Signal-to-Noise Ratio: >75 dB, +3dB
Frequency Response: 80 to 15,000 Hz, electrical response
Total Harmonic Distortion: Less than .2%, electrical response at 1kHz
Compression: Music preset 1:1, Voice preset 1.5:1, Hearing Assist preset 2:1
Auto Carrier Shut-Off: 20 minute timer shuts off carrier when no audio is present
WIR TX90 Transmitter:
Power Indicator: Red LED
Audio Volume Level
Controls:
CHA and CHB Input Level, press to select, 28 dB adjustable range
Audio Indicators: CHA and CHB Audio Level, yellow LED, ash
Carrier LEDs: 2 green LED carrier “on” indicators
Phones Output: 3.5mm TRS headphone jack. CH A tip, CH B ring on jack, 32 ohm headphone (min)
Application Preset: Music, Voice, Hearing Assist. Frequency response; Music: Flat; Voice: Mid-range boost; Hearing Assist:
High frequency boost
Tone Control: Press to select, 21 dB adjustable range (1 kHz between low boost/hi-cut and low cut/hi boost).
Fig. 1: TX90 Bottom View:
* 90 days on accessories.
SoundPlus® Infrared Transmitter

Fig 2: TX90 Rear View
Power Input: 3-Pin Molex, 24 VAC, 50-60 Hz, 35 VA
Audio Input Connector: CH A and CH B, 3 wire Phoenix
Input Level: Balanced or unbalanced, 316 mVRMS (-10dBV) nominal, 5.7k input impedance; max input (over
volume range)
-21 to +7 dBV.
Baseband Output: BNC, 50 Ω, for use with TX9 only
Baseband Cable: RG 58 Coax, BNC connectors, maximum 1000’ (300m) length
Operating Requirements: 0-50º C (+32°F to 122°F) ambient temperature, non-condensing, non-corrosive atmosphere
Mounting Kits: Wall or Ceiling Mount: BKT 024 Omnidirectional mount;
Optional: Tripod Stands: SS-11 or SS-6
Warranty: 5 years on transmitter, 90 days on accessories
Approvals: CE, FCC, RoHS, WEEE
Compatible Receivers: WIR RX22-4 Four-Channel Receiver
WIR RX15-2 Two-Channel Receiver
WIR RX18 Two-Channel Receiver
Notes: Specications: Single end input, volume & tone controls at mid point, 1 kHz,
“Music” Preset
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
SoundPlus® Infrared Transmitter

90
Feet
Feet 90 100 110 120 130 140 150 160
80
80
70
70
60
60
50
50
40
40
30
30
20
20
10
10
0
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
RX22-4 Receiver
Receiver Coverage Area with TX90
Transmitter in Single Channel Mode
RX18 Receiver
RX15-2 Receiver
Fig. 3: Receiver Coverage Area with TX90 Transmitter in Single Channel Mode
The coverage area for the TX90 will vary depending on the receiver being used. The diagram above demonstrates the receiver coverage
when operating a single TX90 transmitter in single channel mode. Patterns are direct radiation patterns.
Note: Reections of the infrared light from walls, ceilings and oors may change these patterns.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
SoundPlus® Infrared Transmitter

Receiver Style: Body-Pack, dual-lens detector, lanyard
Size: 4.5” L x 2.85” W x 1.2” H (114.3 mm x 72.4 mm x 30.4 mm)
Weight: 4.6 oz (130 g) with batteries
Color and Material: Black
Lanyard: 3 ft (.91 m), allows receiver to be worn around the neck
Operating Temperature: -10° C to +50° C
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
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
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, ashes to indicate Low battery
Audio Output Jacks: 3.5 mm stereo mini phone jack
Accepts 3.5 mm mono or stereo phono plug
Audio Output Power: 15 mW max at 32 Ω
Acoustic Output: 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/
Earphones:
Mono or stereo, 8-32 ohms, 3.5 mm mini phone plug, HED 021, HED
026, EAR 013, EAR 014, EAR 022, NKL 001
RX22-4 Front
RX22-4 Top
On/Off
Volume Switch
Earphone
Jack
"On"
Indicator LED
Channel
Selector Knob
OFF
Optional WIR RX22-4 Receiver:
Fig. 8: WIR RX22-4 Receiver
Bid Specs
SoundPlus® Infrared Transmitter

© 2011, Williams Sound, LLC MCAT 042E
Bid Specs
The Williams Sound WIR TX90 transmitter shall consist of an
all-in-one modulator and emitter operating on switchable carrier
frequencies of 2.3/2.8 MHz or 3.3/3.8 MHz. The carrier frequency
shall use 50 kHz deviation and 50µs pre-emphasis.
The transmitter shall have a range of up to 28,000 ft2 (2,600 m2)
in single channel mode when using the RX22-4 receiver. The
transmitter shall be contained in a metal housing with a durable
plastic lens. The transmitter shall be convection cooled without
fans. The transmitter shall include an omni-directional mounting
bracket for permanent installations. Additional brackets shall be
available for different mounting options.
The transmitter shall provide two channels of selectable carrier
frequencies: CH A 2.3/2.8 MHz or CH B 3.3/3.8 MHz. Two
transmitters used in tandem shall provide up 4 simultaneous
channels.
The transmitter shall have two Phoenix connectors on the back for
balanced or unbalanced line input. All controls and indicators shall
be accessible on the bottom of the panel of the transmitter.
The transmitter shall have three application presets: Music, Hearing
Assistance and Voice accessible by thumbscrew adjuster.
There shall be a 3.5mm stereo headphone jack for monitoring the
processed audio before being transmitted.
Two BNC (50Ω) baseband output jacks shall be provided on the
back panel for more coverage needs. The TX9 emitter panels must
be used with the TX90 transmitter via RG58 coax cable.
The transmitter shall be powered by an external 24VAC, 50-60
Hz, 35VA power supply. The power connector shall be a three
pin Molex type. Additional emitters shall require individual external
power supplies.
The transmitter shall be covered by a ve-year warranty on parts
and labor. The transmitter shall be the Williams Sound model
WIR TX90.
Domestic Sales
Williams Sound
10300 Valley View Rd
Eden Prairie, MN 55344
Ph: 800-328-6190 / 952-943-2252
FAX: [phone]
Email: [email protected]
Web: www.williamssound.com
International Sales
International Sales Department
Williams Sound
10300 Valley View Rd
Eden Prairie, MN 55344 USA
Phone: [phone]
Fax: [phone]
Email: [email protected]
Web: www.williamssound.com
800.843.3544 / [email protected] / www.williamssound.com
SoundPlus® Infrared Transmitter
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
*DISCLAIMER: FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE