Williams Sound Sound Plus WIR TX925 Fehlerbehebungshandbuch

Sound Plus™Infrared Listening System

Model WIR TX925, Two-Channel Listening System

Model WIR TX900, Four-Channel Listening System

Model WIR SYS 1, Two-Channel Listening System

Model WIR SYS 2, Two-Channel Listening System

Model WIR SYS 2P, Two-Channel Listening System

Model WIR SYS 4, Four-Channel Listening System

Modulator Model MOD 232

Emitter Model WIR TX9

Optional Receiver Models WIR RX22-4, WIR RX14-2, WIR RX16

INSTALLATION GUIDE &

USER MANUAL

MAN 132D

RoHS

SOUNDPLUS™INFRARED LISTENING SYSTEM

INSTALLATION GUIDE AND USER MANUAL

Contents Page

SYSTEM OVERVIEW .................................................................3

INSTALLATION PROCEDURES

•MOD 232 Modulator Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Wiring & Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Features & Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

•TX9 Emitter Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Coverage Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Features & Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

•Receiver Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

•Recycling Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

•Optional Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

TROUBLESHOOTING ............................................................14

WARRANTY .............................................................15

SPECIFICATIONS

•MOD 232 Modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

•Model TX9 Emitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

SYSTEM OVERVIEW

The Williams Sound SoundPlus™Infrared Listening System consists of a MOD 232 Modulator(s) and

one or more TX9 Emitters which use invisible infrared (IR) light to broadcast speech or music to

wireless infrared receivers.

The system is designed to transmit high quality audio for hearing assistance and language translation

applications. Because the system uses infrared light for transmission, it is not affected by interference

from radio equipment and does not interfere with radio equipment. No FCC license or radio approval

is required.

The system can be used with microphones as a stand-alone system, or can be connected to other

sound equipment. Infrared systems generally cannot be used in direct sunlight because of sunlight’s

large amount of interfering infrared light.

MOD 232 MODULATOR SETUP

DETERMINE LOCATION

The modulator is usually located with the sound system amplifier or mixer for easy access to an audio

input signal. For portable systems, the modulator can be placed near the emitter or in another convenient

location. Infrared Stand Kits (SS-6 and SS-11) are available for portable systems.

WIRING AND CONNECTIONS

Figure 1: MOD 232 (Rear View)

POWER CONNECTION FOR U.S. APPLICATION

Step 1: Connect the TFP 016 power supply to the 3-pin MolexTM

connector located on the rear of the MOD 232.

(See Figure 2, right.)

FOR APPLICATIONS OUTSIDE THE U.S. REQUIRING 240 VAC MAINS SUPPLY:

Use the transformer power supply, model TFP 027.

Secondary specifications: 24 VAC, 35 VA, 50/60 Hz.

Step 2: Plug the power supply into the AC outlet.

TFP 027-01: 230VAC, Euro Mains Plug

TFP 027-02: 230VAC, UK Mains Plug

Figure 2:

Power Connection

Connect to the TX9 using RG-58 cable and BNC connectors. The MOD 232 has two baseband output

jacks to simplify connections when multiple emitters are used.

Figure 3: Baseband Connection, Two Channel Operation

Figure 4: Baseband Connection, Four Channel Operation

To setup a system for four-channel operation, two MOD 232 Modulators are required. Link the two

Modulator units together as shown in Figure 4. Connect the baseband output from the second modulator

in the chain to the TX9 emitter(s) baseband input connector.

BASEBAND CABLE CONNECTION

The MOD 232 can directly drive one or two emitters. TX9 emitters repeat the baseband signal, so any

number of emitters can be used. The modulator outputs CANNOT be split with CATV splitters.

Determine the length of RG-58 cable needed to reach from the TX9 Emitter to the Modulator unit.

Install BNC connectors to each end of the cable.

For two-channel operation, only one MOD 232 is required: Connect the coaxial cable to one of the

Baseband Output jacks on the rear of the MOD 232. The other end of the coaxial cable connects to the

Baseband Input jack of the TX9 Emitter. See Figure 3 below.

IMPORTANT: Each channel must be set to a different frequency!

AUDIO CONNECTION

MICROPHONE INPUT:

With the modulator DIP switches set for microphone

input, the 3-pin XLR jack accepts balanced

microphones. Power for condenser microphones can be

selected by DIP switch. The minimum input level is

100uV and the maximum level is 90 mV.

XLR LINE-LEVEL INPUT:

With the modulator DIP switches set for line-level

input, the 3-pin XLR jack accepts balanced line-level

audio inputs. The minimum input level is 21mV and

the maximum level is 10uV.

1/4” TRS LINE-LEVEL INPUT:

The 1/4” Tip/Ring/Sleeve (TRS) jack can accept only

a balanced or unbalanced line-level input.

A 25 V, 70 V, or 100 V speaker line can be connected to the

balanced line input using an appropriate attenuator. “T”

pads made with resistors yield better fidelity than speaker

matching transformers.

Compress Control

2:1 setting will increase

transmitted audio up to 30

bD during periods of low

level sound.

Figure 6: Features and Controls

Figure 5: Audio Connection

CONFIGURATION SETTINGS

Figure 8

Adjust switch settings on rear of

MOD 232 Modulator here:

Figure 8 illustrates how to configure your system using the DIP switches (Figure 7) on the back of the

MOD 232 Modulator. This diagram is also printed on top of the MOD 232 Modulator unit for quick

reference.

Figure 7: Configuration Switches

COMPRESSOR GAIN

The MOD 232’s Compressor Gain is set in “Moderate” mode from the factory. Use this setting for simultaneous

interpretation. Be sure that the compress control, located on the front of the MOD 232 (Figure 6, page 6), is turned fully

counter-clockwise. Compression can be added if desired by turning the compress control clockwise.

For hearing assistance applications, the MOD 232’s Compressor Gain can be set to “Maximum” mode. For additional

compression, use a tuning wand (PLT 005) or small screw driver and gently turn the compress control (Figure 6, page 6)

on the front of the MOD 232 clockwise.

IMPORTANT: Channel A and Channel B must be set to different frequencies!

Figure 10: NOTE: When pointing

the emitter, be sure to keep the

long dimension horizontal.

TX9 EMITTER SETUP

TX9 LOCATION AND PLACEMENT

To determine the best location for the TX9 Emitter, it helps to think of the IR emitter as an invisible

floodlight. You’ll want to aim it so the listeners are “flooded” with the infrared light. Mount the emitter

at least 2 ft (.61 m) above the audience.

Position the emitter to face in a slightly downward angle - that will increase the “throw” of the infrared

beam. Infrared light reflects off most surfaces and scatters, increasing the coverage area. Rough surfaces

tend to absorb infrared light, minimizing reflections, and limiting coverage to the direct illumination.

Remember: opaque objects block infrared light. Thus, emitters cannot be concealed behind opaque

walls, curtains, etc.

The emitter front red plastic lens must NOT be painted. Neither should emitters be used in areas of

extreme high or low temperature, humidity, or chemical environments.

The TX9 Infrared Emitter should not be installed where there is a lot of direct sunlight, which can create

infrared interference.

Figure 9: 3 Dimension Foot Pattern

COVERAGE AREA

Figure 11: Maximum Range when using the RX22-4, RX14-2, or RX16 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 reflective characteristics of the room. Reflections of the infrared light from walls,

ceilings, and floors may change these patterns.

RX22-4

RX16 RX14-2

Figure 12A and !2B:

Overlapping Illumination

Patterns to Cover Larger

Listening Areas

MULTIPLE EMITTERS INSTALLED TO MAXIMIZE COVERAGE

Figure 13: Connecting Multiple TX9 Emitters

An unlimited number of WIR TX9 emitters can be daisy-chained together to maximize the coverage

area. Remember that each emitter needs its own power supply and cannot share a power supply

with a modulator or another emitter.

Figure 12A

Figure 12B

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