Installation Guide & User Manual SoundPlus ™ WIR TX8 Infrared Emitter, 95 kHz and 250 kHz Carrier Large Area Infrared Listening System Model WIR TX8 Optional Receiver Model WIR RX4 MAN 081F
SOUNDPLUS ™ WIR TX8 INFRARED EMITTER, 95 KHZ AND 250 KHZ CARRIER INSTALLATION GUIDE AND USER MANUAL Contents Page SYSTEM OVERVIEW 3 INSTALLATION PROCEDURE 5 TX8 EMITTER COVERAGE PATTERNS TX8 EMITTER SETUP TX8 POWER WIRING USING MULTIPLE EMITTERS 11 CONTROLS AND FEATURE 13 TX8 REAR PANEL TX8 BOTTOM PANEL RECEIVER SAFETY INFORMATION 14 RECEIVER INSTRUCTIONS 15 RECEIVER MANAGEMENT 15 TROUBLESHOOTING 16 SPECIFICATIONS 17 WARRANTY 19 NOTES: TAKING A FEW MINUTES NOW TO READ THESE INSTRUCT
SYSTEM OVERVIEW The Williams Sound WIR TX8 Infrared Emitter is designed to operate with a WIR TX10 Infrared System or modulator that sends a 95 kHz or 250 kHz frequency modulated signal to the TX8 Emitter via coaxial cable. The WIR TX8 emits invisible infrared light into 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.
FIGURE 1A: TYPICAL SYSTEM CONFIGURATIONS TX10 Transmitter TX8 Emitter Baseband In Baseband Out Power Supply 120 VAC (US): 230 VAC (CE): TFP 010 TFP 027 Power Supply 120 VAC (US): 230 VAC (CE): TFP 010 TFP 027 Baseband Signal FIGURE 1B: USING A TX8 EMITTER WITH A COMPATIBLE 95KHZ/250KHZ MODULATOR TX8 Emitter Baseband Present Indicator (Visible From Below) 95 kHz/250 kHz Modulator MOD 111 Selectable 95/250kHz Infrared System Modulator 3 2 1 Power 4 5 6 7 8 Audio Level CXR 9 10 0 CH 1 Level Wi
TX8 EMITTER COVERAGE PATTERNS The coverage area for the TX8 will vary depending on the receiver being used. Figures 2 and 4 demonstrate the receiver coverage area when operating a single TX8 emitter 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).
FIG 3a: 3-Dimension Foot Pattern The TX8 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 emitteres are required for 100% coverage of the listening area.
FIG 4: Horizontal and Vertical Radiation Polar Plots Receiver Coverage Area with a TX8 or TX10 Emitter in Single Channel Mode HORIZONTAL RADIATION POLAR PATTERNS DISTANCE FROM EMITTER TO RECEIVER 120 30 – 90 – 70 – 60 – 50 100 24 80 18 60 12 40 6 20 – 40 – 30 42 140 36 120 30 – 80 – 70 – 60 – 50 100 24 80 18 60 12 40 6 20 – 20 – 10 FEET 36 – 80 METERS 140 FEET METERS – 90 42 VERTICAL RADIATION POLAR PATTERNS DISTANCE FROM EMITTER TO RECEIVER – 40 – 30 – 20 – 10 0 0
Multiple Emitters Installed to Maximize Coverage FIG. 5a: Overlapping Illumination Patterms to Cover Larger Listening Areas TX10 TX8 TX8 TX8 Fig. 5a above is a typical example of how multiple emitters 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 emitters are required to achieve full coverage of a listening area.
INSTALLATION PROCEDURE The TX8 Infrared Emitter 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. FIG.
POWER WIRING FOR U.S. APPLICATIONS: The TX8 Emitter is supplied with a low-voltage wall transformer power supply (TFP 010). Twoconductor 18 ga. power cord is included with the emitter. POWER CONNECTIONS FOR APPLICATIONS OUTSIDE THE U.S.
IF YOU ARE USING MORE THAN ONE EMITTER: Step 1: Determine the length of coaxial cable needed to reach between the emitters. 100 feet (30 m) of coaxial cable is included with each emitter. You will need to cut it to length. Additional RG–58 coax can be added. Make sure you leave some slack at each end. Step 2: Install BNC connectors on each end of the cable. (See instructions on page 12.
9B FIGURE 9: BNC CONNECTOR ASSEMBLY Washer 7.92 mm (± .25) .312 in. (± .01) Grooved Side Nut Gasket (note groove) Nut Cable Jacket Washer Plug Assembly Gasket 9C Clamp Contact Clamp positioned against Cable Jacket 9D ASSEMBLY PROCEDURE Clamp Collar The BNC Connector consists of a plug assembly, a contact, a clamp, a gasket, a washer, and a nut. 1. Slide nut, washer and gasket over cable end; then strip outer cable jacket using the recommended strip-length dimension in fig. 9b.
CONTROLS AND FEATURES POWER INPUT Three-pin connector for TFP 010 power supply. POWER INDICATOR LED (FRONT PANEL) Located on the front panel in the top center of the LED window. Red indicator light glows when power is on. (Note: The TX8 switches to low power mode when no baseband signal is present.) BASEBAND INDICATOR LED (FRONT PANEL) Located on the front panel in the bottom center of the LED window. Red indicator light glows when baseband signal is present.
RECEIVER SAFETY INFORMATION HEARING SAFETY CAUTION! This product is 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.
OPTIONAL RECEIVER INSTRUCTIONS IR RECEIVER MODELS WIR RX4 1. 2. 3. 4. Turn the receiver’s Power Switch to ON. Place the headset on your head and find the Volume Control. Adjust the headband size by pulling or pushing on each earpiece. Adjust the headset volume to a comfortable level. IMPORTANT The infrared receiver “eye” is located on top of the headset. Do not cover it up or you will lose reception. Note: To maximize battery life, turn the receiver OFF when it’s not in use.
TROUBLESHOOTING NEITHER TX8 INDICATOR LIGHT IS ON (FIGURES 1B, 10 & 11). Make sure the wall transformer is plugged into the emitter and the power switch or any remote power switch is on. Make sure the electrical outlet is on. Make sure the 24 VAC power supplies are working. ONLY TX8’S POWER INDICATOR LED COMES ON (FIGURES 1B, 10 & 11).
SYSTEM SPECIFICATIONS INFRARED EMITTER, MODEL WIR TX8 Dimensions, Weight: Color: Wall Mount: Tripod Mount: Power: Infrared Type: 11.25" W x 6.25" H x 2.125" D (28.6 cm x 15.9 cm x 5.4 cm) 1.9 lbs. (0.9 kg) Black epoxy paint with white legends, red acrylic window BKT 024 mounting bracket included for wall and ceiling mounting. Optional SS-6 Tripod Stand Kit available External power supply, 24 VAC, 50 or 60 Hz, 50 VA, 0.9 A nom.
INFRARED RECEIVER, MODEL WIR RX4 (OPTIONAL) Weight: Earpad Size: Material and Color: Battery Type, Life: Modulation Frequency: Deviation: Frequency Response: Signal-to-Noise Ratio: Controls: Acoustic Output: Compatability: 5.4 oz (154 g) with batteries 6.5 cm (2.
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 SoundPlus Infrared Emitter against defects in materials and workmanship for FIVE (5) years. During the first five years from the purchase date, we will promptly repair or replace the SoundPlus Infrared Emitter.
® © 2006, Williams Sound Corp. 10321 West 70th St., Eden Prairie, MN 55344 U.S.A. 800.843.3544 | 952.943.2252 | FAX: 952.943.2174 www.williamssound.
