Williams Sound SoundPlus WIR TX10 Troubleshooting guide

Williams Sound ®
Helping People Hear
SoundPlus®WIR TX10 Infrared Transmitter,
Selectable 95 kHz or 250 kHz Carrier
Large Area Infrared Listening System
Modulator-Transmitter
Model WIR TX10
Installation
Guide &
User
Manual
MAN 085H

SOUNDPLUS®WIR TX10 INFRARED TRANSMITTER,
SELECTABLE 95 KHZOR250 KHZCARRIER
INSTALLATION GUIDE AND USER MANUAL
Contents Page
SYSTEM OVERVIEW 4
INSTALLATION PROCEDURE 6
TX10 TRANSMITTER COVERAGE PATTERNS
TX10 TRANSMITTER SETUP
TX10 POWER WIRING
AUDIO SOURCE CONNECTION
TESTING THE SYSTEM
CONTROLS AND FEATURES 14
TX10 REAR PANEL
TX10 BOTTOM PANEL
RECEIVER INSTRUCTIONS 17
RECEIVER MANAGEMENT 17
USING MULTIPLE EMITTERS 16
TROUBLESHOOTING 18
WARRANTY 20
SPECIFICATIONS 21
NOTES: TAKING A FEW MINUTES NOW TO READ THESE INSTRUCTIONS WILL SAVE TIME AND ENSURE PROPER
SYSTEM OPERATION.
INFRARED RECEIVER PERFORMANCE CAN BE DEGRADED IF THIS SYSTEM IS USED IN CLOSE PROXIMITY
TO HIGH-EFFICIENCY LIGHTING EQUIPMENT WITH SOLID STATE BALLASTS (I.E. HIGH EFFICIENCY
FLUORESCENT) THAT OPERATE AT FREQUENCIES NEAR 95 KHZ. 250 KHZ OPERATION SHOULD BE USED
WHEN THIS OCCURS.
The TX10 is a CLASS 1 LED PRODUCT
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SYSTEM OVERVIEW
The Williams Sound WIR TX10 Infrared Transmitter uses invisible infrared (IR) light waves
to broadcast speech or music to wireless infrared receivers.
The TX10 accepts a balanced or unbalanced line level audio input and emits an invisible
infrared 95 kHz or 250 kHz frequency throughout the listening area. Infrared receivers detect
the transmission and convert the light signals back into audio signals.
The system is designed to transmit high quality audio for hearing assistance and language
interpretation applications. Because the system uses infrared light for transmission, it is not
affected by radio equipment and does not interfere with radio equipment. No FCC license is
required. The coverage area for the TX10 will varydepending on the receiver being used.
(see Figures 2 and 4 to demonstrate the receiver coverage area when operating a single TX10
transmitter in single channel mode). Generally, an RX3 receiver will operate up to 10,000 ft2
(930 m2); a RX7/8 receiver will operate up to 6,000 ft2 (560 m2); and a RX4 receiver will
operate up to 4,000 ft2 (370 m2). Larger areas can be covered by connecting additional WIR
TX8 Emitters.
The system must be connected to an existing sound system or mixer. It does not have a direct
microphone input. Infrared systems cannot be used in bright sunlight because of sunlight’s
large amount of interfering infrared light.

TX10 Transmitter
Audio Source
Audio Input
Line Level Output
Power Supply
120 VAC (US): TFP 010
230 VAC (CE): TFP 027
Phones
Amplifier
Power
Limit
Compress
Audio
Limit
Compress
Audio
5
0
1
2
346
7
8
9
10
Level
5
0
1
2
346
7
8
9
10
Level
5
0
1
2
346
7
8
9
10
Level
5
0
1
2
346
7
8
9
10
Level
Power On LED
(Visible From Below)
Audio LED
(Visible From Below)
Baseband LED
(Visible From Below)
Baseband Signal
TX8 Emitter
Baseband Out
Baseband In
TX10 Transmitter
Audio Source
Audio Input
Line Level Output
Power Supply
120 VAC (US): TFP 010
230 VAC (CE): TFP 027
Power Supply
120 VAC (US): TFP 010
230 VAC (CE): TFP 027
Phones
Amplifier
Power
Limit
Compress
Audio
Limit
Compress
Audio
5
0
1
2
346
7
8
9
10
Level
5
0
1
2
346
7
8
9
10
Level
5
0
1
2
346
7
8
9
10
Level
5
0
1
2
346
7
8
9
10
Level
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FIGURE 1A: TYPICAL SYSTEM CONFIGURATIONS
FIGURE 1B: ADDING A TX8 EMITTER FOR GREATER COVERAGE AREA (SEE PAGE 16)

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TX10 TRANSMITTER COVERAGE PATTERNS
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140
0 3 6 9 12 15 18 21 24 27 30 34 37 40 43
90
80
70
60
50
40
30
20
10
0
- 10
- 20
- 30
- 40
- 50
- 60
- 70
- 80
- 90
27
24
21
18
15
12
9
6
3
0
- 3
- 6
- 9
- 12
- 15
- 18
- 21
- 24
- 27
FIG 2: Receiver Coverage Area with TX8 or TX10 Transmitter in Single Channel Mode
(FEET)
(METERS)
RX3 Receiver
1 Channel
(Approx. 10,000 sq. feet., 930 sq. meters)
RX4 Receiver
1 Channel
(Approx. 4,000 sq. feet., 370 sq. meters)
RX7/8 Receiver
1 Channel
(Approx. 6,000 sq. feet., 560 sq. meters)
The coverage area for the TX10 will varydepending on the receiver being used. Figures 2 and 4 demonstrate
the receiver coverage area when operating a single TX10 transmitter in single channel mode. Generally, an
RX3 receiver will operate up to 10,000 ft2 (930 m2); a RX7/8 receiver will operate up to 6,000 ft2 (560 m2);
and a RX4 receiver will operate up to 4,000 ft2 (370 m2).
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 receiver sensitivity
and the reflective characteristics of the room.
Reflections of the infrared light from walls, ceilings, and floors may change these patterns.
Important: Remember to point the transmitter towards the listening audience!
Remember: opaque objects block infrared light. Thus, transmitters cannot be concealed behind opaque walls,
curtains, etc. Neither should transmitters be used in areas of extreme high or low temperatures, humidity, or
chemical environments.

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FIG 3a: 3-Dimension Foot Pattern
The TX10 floods the listening audience with
a cone shape light pattern as shown here.
The path of the cone shape light leaves a
pattern on the ground, or "foot print," and
indicates where the strongest receiver
reception will occur.
The actual coverage area will vary depending
on the signal strength of the receiver being
used. Refer to Figures 2 and 4 to determine
how many emitters are required for 100%
coverage of the listening area.
FIG 3b: Vertical Beam Spread
Minimum receiver RANGE when operating with a TX8 or TX10 transmitter in Single Channel Mode.
RX3 Receiver: 120' (37 m) RX7/8: 80' (24 m) RX4: 70' (21 m)
SCREEN
30'
STAGE
6'
Center Of Transmitter Beam
TX10
(Range)
To determine the best location for the transmitter, it helps to think of the IR transmitter as an invisible
floodlight. You’ll want to aim it so the listeners are “flooded” with the infrared light. The transmitter should
also be positioned high enough so it won’t be blocked by people and other physical obstructions. See Figure
3b below. Mount the transmitter at least 2 ft. (.61 m) above the audience. Position the transmitter to face
in a slightly downward angle, 20° - that will increase the “throw” of the infrared beam.

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Reflections of the infrared light from walls, ceilings, and floors may change these patterns.
Important: Remember to point the transmitter towards the listening audience!
If you’re not getting sufficient coverage with a single, properly installed TX10 Transmitter, you’ll need to add
WIR TX8 Emitters to achieve full coverage of your listening area (see page 16, Using Multiple Emitters).
Figures 5a and 5b illustrate how multiple emitters can be used for large room installations.
20
6
12
18
24
30
36
42
40
60
80
100
120
140
FEET
METERS
HORIZONTAL RADIATION POLAR PATTERNS
DISTANCE FROM EMITTER TO RECEIVER
VERTICAL RADIATION POLAR PATTERNS
DISTANCE FROM EMITTER TO RECEIVER
20
6
12
18
24
30
36
42
40
60
80
100
120
140
FEET
METERS
– 90 – 80 – 70
– 60
– 50
– 40
– 30
– 20
– 10
0
10
20
30
40
50
60
70
80
90
– 90 – 80 – 70
– 60
– 50
– 40
– 30
– 20
– 10
0
10
20
30
40
50
60
70
80
90
RX4 Receiver
1 Channel
(Approx. 4000 sq. feet., 370 sq. meters)
RX7/8 Receiver
1 Channel
(Approx. 6000 sq. feet., 560 sq. meters)
RX3 Receiver
1 Channel
(Approx. 10000 sq. feet., 930 sq. meters)
RX3 Receiver
1 Channel
RX4 Receiver
1 Channel
RX7/8 Receiver
1 Channel
FIG 4: Horizontal and Vertical Radiation Polar Plots
Receiver Coverage Area with a TX8 or TX10 Transmitter in Single Channel Mode

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TX10
Coverage area
with Single
Transmitter
Coverage area
with Second Emitter
Added to Same
Emission Point
(50% increase)
TX8
Multiple Transmitters Installed to Maximize Coverage
FIG. 5a: Overlapping Illumination Patterms to Cover Larger Listening Areas
FIG. 5b: Using Two Transmitters at Same Emission Point to Increase Coverage Area
Fig. 5a above is a typical example of how multiple transmitters are used to cover larger listening areas.
Generally, it is desirable for the illumination patterns to overlap. Note: The coverage area will vary
depending on the infrared receiver being used; refer to Figures 2 and 4 to determine how many
transmitters are required to achieve full coverage of a listening area.
When two transmitters are used at the same emmission point in single channel mode, the overall coverage area
increases 50%. When using an RX3 receiver, as a result, the coverage area will increase to 15,000 ft2 (1,393
m2); the RX7/8 will increase to 9,000 ft2 (836 m2); and the RX4 will increase to 6,000 ft2 (557 m2).
TX10 TX8
TX8 TX8

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FIG. 7: WALL OR CEILING MOUNT
Figure 7a: Mounting the TX10
on to a wall with the BKT 024.
Tip: To keep the TX10 level,
rotate the tension screw (Fig. 6)
so it rests on top of the bracket.
Figure 7b: Mounting the TX10
on to a ceiling with the BKT 024.
INSTALLATION PROCEDURE
The TX10 Infrared Transmitter should not be installed outdoors, or where there is a lot of direct
sunlight indoors. Sunlight generates infrared interference. Certain types of high-efficiency lighting
fixtures can also generate interference at 95 kHz because they use high frequency modulation.
INSTALLATION STEP 1: MOUNTING THE TX10 TO A WALL OR CEILING
Step 1: Using the mounting plate (Figure 6) as a template, mark the hole locations on the mounting surface
where the TX10 will be installed. See Figure 7 below for optional mounting positions.
Step 2:
Locate the top mounting hole in the rear of the TX10 transmitter. Gently screw the male end of the swivel
head on to the transmitter. Tighten the swivel head
tension screw : turn clockwise until the connection is
secure.
Step 3: Screw the male end of the shaft into the female end of the swivel head. An additional shaft can be
added to create more distance between the wall/ceiling and Transmitter.
Step 4: Place the plate cover snugly over the mounting plate. This will hide the screws after installation.
Step 5: Screw the male end of the mounting plate into the female end of the shaft.
For suspended ceilings, screw
the female end of the shaft into the male end of the
T-Bar clip . The mounting bracket is now installed on to
the TX10 Transmitter.
Step 6: Position the TX10 Transmitter and BKT 024 so the mounting plate lines up with the marked holes on the
mounting surface. Fasten the mounting plate to the surface using screws and wall anchors.
Mounting
the TX10 to a Suspended Ceiling with Cross Tee:
Fasten the T-Bar clip on to the desired Cross Tee.
Step 7: Position the TX10 Transmitter to the desired angle: Begin by gently turning the tension screw (Figure 6)
counter clockwise to release the swivel head. Adjust the TX10 to the desired angle. When the TX10 is in
the desired position, gently turn the tension screw clockwise until the swivel head is securely in place.
FIG. 6: BRACKET 024 MOUNTING
TX10 Emitter
Swivel Head
tension screw
Shaft
(optional)
Shaft Plate
Cover
Mounting
Plate
Mounting
Screws
(To Wall or Ceiling)