William Sound WIR TX-9 DC Troubleshooting guide

MAN 209B
WIR TX-9 DC, WIR TX-90 DC
Infrared Emitter and Transmitter
Installation Guide & User Manual
Optional Receiver Models WIR RX22-4, WIR RX18
Optional Charger Models CHG 518, CHG 3512

2
WIR TX9 DC Emitter, WIR TX90 DC Transmitter
Contents
System Overview..............................................................................................................................................................3
Determine Coverage Area ................................................................................................................................................4
Connect Power ................................................................................................................................................................6
Power Connection (Universal)....................................................................................................................................6
Connect Audio Source .....................................................................................................................................................7
Selecting a Carrier Frequency...........................................................................................................................................7
Selecting a Channel..........................................................................................................................................................7
Select the Audio Processing Application Preset................................................................................................................8
Adjusting Audio Input Level ..............................................................................................................................................8
Adjusting Tone..................................................................................................................................................................8
Using the Optional WIR TX9 DC Slave Emitter for Additional Coverage.............................................................................9
Receiver Safety Information ............................................................................................................................................10
Recycling Instructions.....................................................................................................................................................10
Optional Infrared Receivers.............................................................................................................................................11
Optional Chargers ..........................................................................................................................................................12
Troubleshooting..............................................................................................................................................................13
The WIR TX90 DC “Power On” indicator is not lit.....................................................................................................13
The WIR TX90 DC channel A or B “On” indicator is not lit........................................................................................13
No sound through receivers. ...................................................................................................................................13
Sound through the receivers is weak and noisy...........................................................................................................13
Buzzing or humming noise in sound system............................................................................................................13
Specications - WIR TX90 DC ........................................................................................................................................14
Specications - WIR TX9 DC ..........................................................................................................................................15
Limited Warranty ............................................................................................................................................................15

System Overview
The WIR TX90 DC two channel infrared transmitter combines infrared modulator and emitter technology into a single
mountable enclosure - reducing operating cost and eliminating precious rack space.
The WIR TX90 DC features an easy to use conguration preset for Music, Voice, or Hearing Assistance Applications. It
operates on dual 2.3/2.8 or 3.3/3.8 MHz selectable frequencies - ideal for high quality audio programs such as music,
theater and audio description. The WIR TX90 DC will accept any line level, balanced or unbalanced audio inputs, and
includes adjustable tone and volume control. Infrared receivers detect the transmission and convert the light signals back
into audio signals. The 2.3-3.8 MHz operating frequencies minimize high eciency lighting interference. No FCC license
or radio approval is required with this equipment. It can be used anywhere in the world.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
NOTICE: A plasma monitor can degrade the audio quality of the Infrared Listening System.
CH B
AUDIO IN
CH A
AUDIO IN
SOUND SYSTEM
TO ADDITIONAL
EMITTERS
(IF NECESSARY)
MOUNTING
BRACKET
AUDIO
INPUTS
BASEBAND
OUTPUTS
RX22-4 RECEIVERS
(WIRELESS)
A625
POWER
SUPPLY
Typical Two-Channel conguration for the WIR TX90 DC
3
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Determine Coverage Area
Determine the coverage area needed for the seating area. When using the WIR TX90 DC transmitter with the RX22-4 receiver,
in single channel mode, the WIR TX90 DC can achieve a coverage area of 30,000 sq. ft. (2,787 sq. m.). In four channel mode,
the WIR TX90 DC divides its power among the four signals to achieve a coverage area of 11,000 sq. ft. (1,022 sq. m.).
NOTE: The coverage area will vary depending on the sensitivity of the infrared receiver being used. The following
diagram illustrates coverage area when using a RX22-4, RX15-2, or RX18 receiver with a single WIR TX90 DC
transmitter in single channel mode.
0
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
10
20
30
40
50
60
70
80
90
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160
FEET
FEET
RX22-4 RECEIVER
RX18 RECEIVER
RECEIVER COVERAGE AREA WITH
TX9 DC OR TX90 DC TRANSMITTER
IN SINGLE-CHANNEL MODE
A627
Maximum range when using the RX22-4, RX15-2, or RX18 Receiver
These patterns are the direct radiation pattern. The infrared radiation does not drop to zero outside the illustrated patterns; it
decreases. It still may be useable at a greater distance, depending on the receiver sensitivity and the reective characteristics of
the room.
Reections of the infrared light from walls, ceilings, and oors may change these patterns.
Important: Remember to point the transmitter towards the listening audience!
Remember: opaque objects block infrared light. Thus, the transmitter cannot be concealed behind opaque walls, curtains, etc.
4
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

CORRECT
INCORRECT
A230
When pointing the emitter, be sure to keep the
long dimension horizontal.
A237
3-Dimensional IR Illumination Pattern
WIR TX90 DC WIR TX9 DC
WIR TX9 DC WIR TX9 DC
A628
Overlapping Illumination patterns to cover Larger Listening Areas
WIR TX90 DC
COVERAGE AREA
WITH SINGLETRANSMITTER
COVERAGE AREA
WITH SECOND EMITTER
ADDED TO SAME
EMISSION POINT
(50% INCREASE)
WIR TX9 DC
A629
Overlapping Illumination patterns to cover Larger Listening Areas
5
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Connect Power
WARNING: POWERLINE VOLTAGE MUST NOT FALL BELOW 90V, 0R SYSTEM PERFORMANCE WILL BE
GREATLY REDUCED!
Power Connection (Universal)
Connect the TFP 053 power supply to the barrel connector jack located on the rear of the TX90 DC (see “WIR TX90 Rear View”).
Use the line cord appropriate for the country of use.
WLC 004 USA Line Cord
WLC 005 Euro Line Cord
WLC 006 UK Line Cord
WLC 007 Australia Line Cord
WCA 123 DC Power Extension Cable. This optional cable can be used to extend the DC power connection by 50 ft.
NOTE: The WIR TX90 DC transmits when a baseband signal is present, and will shut o after 20 minutes when no baseband
signal is present. This auto shut-o feature preserves the life of the infrared LEDs and reduces power consumption.
This system is designed for class 2, low-voltage wiring. Always follow local electrical codes when doing low voltage wiring.
A624
POWER CONNECTION
BARREL CONNECTOR JACK
WALL/CEILING
MOUNTING BRACKET (BKT 024)
SET OF THREADED HOLES FOR USE
WITH MOUNTING BRACKET
BASEBAND OUT
BNC CONNECTOR, 50 Ω
50 KHZ-8 MHZ BASEBAND
WIR TX90 Rear View
6
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Connect Audio Source
Determine the length of the audio cable needed to connect to the sound system to the WIR TX90 DC transmitter. Install the
supplied Phoenix connector on the end of the audio cable to be connected to the transmitter. See the back of the WIR TX90 DC
for wiring instructions.
LINE LEVEL BALANCED OR UNBALANCED (5V P/P MAXIMUM AUDIO) A232
BALANCED UNBALANCED
SIGNAL
SHIELD
–
G
+
SIGNAL
SHIELD
–
G
+
SIGNAL
JUMPER
Audio Source Connections
FREQUENCY
SELECTION SWITCH
(2.3/2.8 OR 3.3/3.8)
CHANNEL
ON/OFF
BUTTON
“PRESET”
INDICATOR
LEDS
AUDIO
ADJUSTMENT
DIAL
HEADPHONE
JACK (3.5mm)
POWER “ON”
INDICATOR
LED
AUDIO SOURCE
LEVEL
INDICATOR LEDS
CH A
“ON”
LED
CH B
“ON”
LED
PRESET
SELECT
BUTTON
“TONE” or “VOLUME”
SELECTED
INDICATOR LEDS
The WIR TX90 DC will accept line level, balanced or unbalanced audio inputs. If you wish to operate in single channel mode, plug
the audio cable with the installed Phoenix connector in “Channel A” OR the “Channel B” connector. If you choose to operate in
two channel mode, plug the audio cables with Phoenix connectors in both “Channel A” AND “Channel B” connector.
NOTE: By default, the WIR TX90 DC is set to operate in two-channel mode. To turn Channel A or Channel B on/o, refer to
the instructions Selecting a Channel, below.
Selecting a Carrier Frequency
The WIR TX90 DC oers two sets of carrier frequencies for Channel A and Channel B:
2.3 and 2.8 MHz or 3.3 and 3.8 MHz.
The WIR TX90 DC is preset to 2.3 and 2.8 MHz, which are the most commonly used. Move the slide switch to select a pair of
operating frequencies.
Selecting a Channel
To activate a channel, press the “CHANNEL” button until the channel “ON” indicator lights. For example, to operate only channel
A, press the “CHANNEL” button until only the channel A “ON” indicator lights. To operate both channel A and B, press the
“CHANNEL” button until both “ON” indicators light.
Note: If you’re only using one channel, make sure the other channel is turned o to maximize system coverage.
Bottom of WIR TX90 DC
7
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Select the Audio Processing Application Preset
The WIR TX90 DC oers three preset audio processing options for the most common applications: Music, Voice, and Hearing
Assist. Use the “Music” setting when maximum dynamic range and audio quality are preferred. Use the “Voice” setting for
simultaneous interpretation, audio description, or other applications with users that have primarily normal hearing. Use the
“Assist” setting for hearing assistance applications to meet the reduced dynamic range needs of hearing impaired listeners.
You may select the same audio pre-set for both Channel A and Channel B, or you may select them independently.
To select the audio processing preset, you must rst activate the channel you want to adjust. Press the “channel” button to
activate the channel(s) you want to choose an audio processing preset for, then press the “Presets” button to choose the
preset. The Music, Voice, or Assist indicator will light to show your selection. After 10 seconds, the setting will be stored.
Adjusting Audio Input Level
The TX90 DC is designed to accept a line-level audio input signal. The “Level” indicator light for each channel is used to help
adjust the audio input level. When the indicator does not light, the input signal level is too low. When the indicator is ashing,
the signal level is optimal. When the indicator is steadily lit, but does not ash, the input level is too high and can cause
distortion. You can adjust the input level of both channels simultaneously, or independently.
Make sure the input audio signal is connected to the WIR TX90 DC. To adjust the audio input level, rst activate the channel(s)
you want to adjust by pressing the “CHANNEL” button, then press the “VOLUME” button. The Volume indicator will light.
Now, turn the “ADJUST” knob clockwise to increase the input signal or counter-clockwise to decrease the input signal until
the channel “Level” indicator is ashing. After 10 seconds, the setting will be stored.
IMPORTANT
Audio level NORMAL (optimal): the audio indicator level will flash at a 1 second rate.
Audio level too HIGH: the audio indicator level will stay on or flash erratically.
Audio level too LOW: the audio indicator level will be off.
Adjusting Tone
The WIR TX90 DC has a tone adjustment to suit user preference and to compensate for the dierent frequency responses of
various infrared receiver models. First, make sure the audio source is active. Use a receiver from the system to listen to the
signal as you adjust the tone control.
To adjust the tone, rst activate the channel(s) you want to adjust by pressing the “CHANNEL” button, then press the
“TONE” button. The tone indicator will light. Now turn the “ADJUST” knob clockwise to emphasize high frequencies (best
for hearing assistance use). When you have reached the maximum adjustment, there will be no further change in tone. Turn
the “ADJUST” knob counter-clockwise to decrease the high frequency emphasis. When you have reached the minimum
adjustment, there will be no further change in tone. After 10 seconds, the setting will be stored.
8
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Using the Optional WIR TX9 DC Slave Emitter for Additional Coverage
For larger facilities, additional emitter panels can be used to increase the overall coverage area. In these cases, we recommend
using the WIR TX9 DC slave emitter in tandem with the WIR TX90 DC. The WIR TX90 DC can drive multiple WIR TX9 DC emitters
at one time. Each TX9 DC emitter will require its own power supply.
TO TX9 DC EMITTER
WIR TX9 DC EMITTER (REAR) WIR TX90 DC TRANSMITTER (REAR)
A621
BASEBAND
INPUT
BASEBAND
OUTPUT
Connecting a WIR TX9 Emitter to a WIR TX90 Transmitter
TO SECOND TX9 EMITTER TO TX9 EMITTER
BASEBAND
OUTPUT
BASEBAND
INPUT
WIR TX9 DC EMITTER #2 (REAR)
TO ADDITIONAL
EMITTERS
TO ADDITIONAL
EMITTERS
WIR TX9 DC EMITTER #2 (REAR) WIR TX90 DC TRANSMITTER (REAR)
A622
BASEBAND
OUTPUT
BASEBAND
INPUT
BASEBAND
OUTPUT
BASEBAND
INPUT
Chaining multiple WIR TX9 DC Emitters Together
To add a second WIR TX9 DC emitter panel to the WIR TX90 DC transmitter, repeat the process above (the WIR TX90 DC
transmitter has two baseband output jacks).
Note: The WIR TX9 DC emitter panels can be “chained” together if needed for unlimited coverage area. Each
WIR TX9 DC emitter will require its own power supply. See Figure 11 below.
9
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Receiver Safety Information
HEARING SAFETY
CAUTION!
Williams Sound receivers are designed to amplify sounds to a high volume level which could potentially cause hearing damage if
used improperly. To protect your hearing and the hearing of others:
1. Make sure the volume is turned down before putting on the earphone or headphone before adjusting the volume to a comfortable
level.
2. Set the volume level at the minimum setting that you need to hear.
3. If you experience feedback (a squealing or howling sound), reduce the volume setting and move the microphone away from the
earphone or headphone.
4. Do not allow children or other unauthorized persons to have access to the receiver.
BATTERY SAFETY AND DISPOSAL
CAUTION!
Williams Sound receivers are supplied with disposable Alkaline batteries. Do not attempt to recharge alkaline batteries, which may
explode, release dangerous chemicals, cause burns, or other serious harm to the user or product.
PACEMAKER SAFETY
CAUTION!
1. Before using Williams Sound receivers with a pacemaker or other medical device, consult your physician or the manufacturer of
your pacemaker or other medical device.
2. If you have a pacemaker or other medical device, make sure that you are using the Williams Sound receiver in accordance with
safety guidelines established by your physician or the pacemaker manufacturer.
Recycling Instructions
Help Williams Sound protect the environment! Please take the time to dispose of your equipment properly.
Product Recycling Instructions:
Please do NOT dispose of your Williams Sound equipment in the household trash. Please take the equipment to an
electronics recycling center; OR, return the product to the factory for proper disposal.
Battery Recycling Instructions:
Please do NOT dispose of used batteries in the household trash. Please take the batteries to a retail or community
collection point for recycling.
10
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

BATTERY
(BAT AP11A)
A235
VOLUME
CONTROL
Model WIR RX18, Two Channel, Under-the-chin Receiver
Optional Infrared Receivers
A626
ON/OFF, VOLUME
CONTROL DIAL
HEADPHONE
JACK
"ON"/LOW
BATTERY/
SLEEP MODE
INDICATOR
CHANNEL
SELECTOR
KNOB
Channel Frequency
1 2.3 MHz
2 2.8 MHz
3 3.3 MHz
43.8 MHz
Model WIR RX22-4, Four Channel Receiver
11
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Optional Chargers
TFP 043 AC
POWER CONNECTION
CHG 518
REAR VIEW
A223
WIR RX18 RECEIVER
CHARGING
INDICATORS
CHG 518
FRONT-TOP VIEW
Multiple Battery Charger, Model CHG 518
CHG 518 Back
RECEIVER OR
TRANSMITTER
CHARGING
INDICATOR
A124
CHG 3512
REAR VIEW
DC POWER
Figure 16: Multiple Battery Charger, Model CHG 3512
12
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Troubleshooting
The WIR TX90 DC “Power On” indicator is not lit.
• Make sure the power supply is plugged into the transmitter and any remote power switch is on.
• Make sure the electrical outlet is on.
• Make sure the power supply is working (LED is lit).
The WIR TX90 DC channel A or B “On” indicator is not lit.
• Make sure the desired audio channel has been activated. See Selecting a Channel on page 7.
• Make sure the WIR TX90 DC is plugged in.
• Make sure the audio input is connected properly. See page 6 or instructions on the back of the WIR TX90 DC.
• Make sure an active audio signal is being sent to the WIR TX90 DC transmitter.
No sound through receivers.
• Check to make sure the receiver is operating on the same frequency as the transmitter.
• If some of the receivers work but others don’t, check for bad batteries or earphones on the receivers that aren’t working.
• If none of the receivers work, check to see if the power and audio input cable are connected to the transmitter and that the
WIR TX90 DC “Power On” and Channel A or B “On” indicator is illuminated.
• Check to see if the transmitter is connected properly to the sound system. The audio level indicators should ash on channels that are selected.
• Make sure the “eye” is not covered up on the receiver. There must be clear line of sight between the receiver eye and the transmitter panel.
Sound through the receivers is weak and noisy.
• Listen to the audio signal through the headphone jack on the WIR TX90 DC transmitter. If the signal is weak and noisy here,
try increasing the audio input level (see Adjust Audio Input Level, page 8), or increase the input signal level from the sound
system by turning up the mixer control. If the signal sounds okay, you may need to reposition the transmitter panel or add
additional IR emitters to the WIR TX90 DC system.
Buzzing or humming noise in sound system.
• Check for ground loops or noise on the input signal. Call your Authorized Williams Sound dealer or representative.
13
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Specications - WIR TX90 DC
NOTE: Specications subject to change without notice.
Visit our website for the latest specications and publications: www.williamssound.com
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 (optional white enclosure available)
Power Supply: Desktop-style, universal power supply.
Input: 100-240 VAC, 50/60 Hz, 0.6 A. Line cord specied by country of use.
Output: 24 VDC, 1.0 A, 25 W. Barrel connector.
50 ft DC power supply extension cable available (WCA 123).
Modulation: FM Wideband, +50 kHz deviation max., 50 uS pre-emphasis
Carrier Frequency: Channel A: Selectable, 2.3/3.3 MHz,
Channel B: Selectable, 2.8/3.8 MHz
Emitter IR Power: 3.5 W
Coverage Area: 30,000 sq. ft. (2,787 sq. m) in single channel mode when using the RX22-4 Receiver
19,000 sq. ft (1,765 sq. m) in two channel mode when using the RX22-4 Receiver
11,000 sq. ft (1,022 sq. m) in four channel mode when using the RX22-4 Receiver
3,350 sq. ft (311 sq. m) in single channel mode when using the RX18 Receiver
Signal-to-Noise Ratio: >75 dB, +3 dB
Frequency Response: 80 to 15,000 Hz, electrical response
Total Harmonic Distortion: Less than 0.2%, electrical response at 1 kHz
Compression: Music preset 1:1, Voice preset 1.5:1, Hearing Assist preset 2:1
Auto Carrier Shut-O: 20 minute timer shuts o carrier when no audio is present
Power Indicator: Red LED
Audio Volume Level
Controls:
CH A and CH B Input Level, press to select, 28 dB adjustable range
Audio Indicators: CH A and CH B 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).
Power Input: 24 VDC, 0.8 A, 25 W
Audio Input Connector: CH A and CH B, 3 wire Phoenix
Input Level: Balanced or unbalanced, 316 mVRMS (-10 dBV) nominal, 5.7 k Ω input impedance; max input (over volume range) -21
to +7 dBV.
Baseband Output: BNC, 50 Ω, for use with TX9 or TX9 DC only
Baseband Cable: RG 58 Coax, BNC connectors, maximum 1000 ft. (300 m) 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-6.
Warranty: 5 years on transmitter (90 days on accessories)
Approvals CE, FCC, RoHS, WEEE
Compatible Receivers: WIR RX22-4 Four-Channel Receiver
WIR RX18 Two-Channel Receiver
Notes Specications: Single end input, volume & tone controls at mid point, 1 kHz,
“Music” Preset
14
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

Limited Warranty
Williams Sound products are engineered, designed, and manufactured under carefully controlled conditions to provide you with many years of
reliable service. Williams Sound warrants the Sound Plus™ Infrared Listening System against defects in materials and workmanship for FIVE (5)
years. During the rst ve years from the purchase date, we will promptly repair or replace the Sound Plus™ Infrared Listening System.
Microphones, earphones, headphones, batteries, chargers, cables, carry cases, and all other accessory products carry a 90-day warranty.
WILLIAMS SOUND HAS NO CONTROL OVER THE CONDITIONS UNDER WHICH THIS PRODUCT IS USED. WILLIAMS SOUND, THEREFORE,
DISCLAIMS ALL WARRANTIES NOT SET FORTH ABOVE, BOTH EXPRESS AND IMPLIED, WITH RESPECT TO THE SOUND PLUS™ INFRARED
LISTENING SYSTEM, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. WILLIAMS SOUND SHALL NOT BE LIABLE TO ANY PERSON OR ENTITY FOR ANY MEDICAL EXPENSES OR ANY DIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES CAUSED BY ANY USE, DEFECT, FAILURE OR MALFUNCTIONING OF THE PRODUCT, WHETHER
A CLAIM FOR SUCH DAMAGES IS BASED UPON WARRANTY, CONTRACT, TORT OR OTHERWISE, THE SOLE REMEDY FOR ANY DEFECT,
FAILURE OR MALFUNCTION OF THE PRODUCTS REPLACEMENT OF THE PRODUCT. NO PERSON HAS ANY AUTHORITY TO BIND WILLIAMS
SOUND TO ANY REPRESENTATION OR WARRANTY WITH RESPECT TO THE SOUND PLUS™ INFRARED LISTENING SYSTEM. UNAUTHORIZED
REPAIRS OR MODIFICATIONS WILL VOID THE WARRANTY.
The exclusions and limitations set out above are not intended to, and should not be construed so as to contravene mandatory provisions of applicable
law. If any part or term of this Disclaimer of Warranty is held to be illegal, unenforceable, or in conict with applicable law by a court of competent
jurisdiction, the validity of the remaining portions of this Disclaimer of Warranty shall not be aected, and all rights and obligations shall be construed and
enforced as if this Limited Warranty did not contain the particular part or term held to be invalid.
If you experience difficulty with your system, call Toll-Free for customer Assistance: 1-800-843-3544 (U.S.A.) or [phone] (Outside the U.S.A.)
Your warranty becomes eective the date you purchase your system. Your returned warranty card is our way of knowing when your warranty begins.
It also gives us important information about your system including the serial number. This information will help us serve you better in the future. Please
take a moment to complete and mail the attached card. Thank you.
Specications - WIR TX9 DC
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 (optional white enclosure available)
Power Supply: Desktop-style, universal power supply.
Input: 100-240 VAC, 50/60 Hz, 0.6A. Line cord specied by country of use.
Output: 24 VDC, 1.0 A, 25W. Barrel connector.
50 ft DC power supply extension cable available (WCA 123).
Carrier Frequency: Accomodates baseband sub carriers from 2.3-3.8 MHz
Emitter IR Power: 3.5 watts
Coverage Area: 30,000 sq. ft. (2,787 sq. m) in single channel mode when using the RX22-4 Receiver
19,000 sq. ft (1,765 sq. m) in two channel mode when using the RX22-4 Receiver
11,000 sq. ft (1,022 sq. m) in four channel mode when using the RX22-4 Receiver
3,350 sq. ft (311 sq. m) in single channel mode when using the RX18 Receiver
Baseband Indicator: Red LED
Power Indicator: Red LED
Auto Carrier Shut-O: Turns o LEDs when no baseband is present
Power Input: 24 VDC, 0.8 A
Baseband Input: BNC, 50 Ω, for use with MOD 232, TX 90, TX 90 DC, TX 9 and TX 9 DC
Baseband Output: BNC, 50 Ω, for use with TX 9 or TX 9 DC only
Baseband Cable: RG 58 Coax, BNC Connectors, maximum 1000 ft (300 m) length.
Operating Requirements: 32-122 °F (0-50 °C), 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 RX18 Two-Channel Receiver
Notes: Specications: Single end input, volume & tone controls at mid point, 1 kHz, “Music” Preset
15
WIR TX9 DC Emitter, WIR TX90 DC Transmitter

©2017 Williams Sound • All Rights Reserved
10300 Valley View Rd • Eden Prairie, MN 55344
800-328-6190 / 952-943-2252 • FAX: [phone]
www.williamssound.com
WIR TX9 DC Emitter, WIR TX90 DC Transmitter
MAN 209B