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WIR TX75/b
Two-Channel Infrared Transmitter
Manual and User Guide
MAN 166C
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WIR TX75 Two-Channel Infrared Transmitter WIR TX75 Two-Channel Infrared Transmitter Contents Important Safety Instructions ..................................................................................................................................................3 CAT-5e Cable Safety ........................................................................................................................................................3 Receiver Safety Warnings ..............................
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WIR TX75 Two-Channel Infrared Transmitter Important Safety Instructions Please read and keep these instructions. CAT-5e CABLE SAFETY CAUTION! Do NOT plug the WIR TX75 (master) CAT-5e / RJ45 cable into anything other than the WIR TX75-S slave(s). The TX75 CAT-5e / RJ45 connection is proprietary and is NOT compatible with ethernet or any other RJ45 systems. Failure to comply with this caution can destroy this or other equipment and will void the warranty. Receiver Safety Warnings HEARING SAFETY
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WIR TX75 Two-Channel Infrared Transmitter Servicing or attempting to service this device will void the warranty Refer servicing to qualified personnel. Servicing is required when the system has been damaged in any way: if liquid has been spilled or objects have fallen into the unit, if the unit has been exposed to moisture, if the unit does not operate normally, or if the unit has been dropped. Do not block any ventilation openings. Install in accordance with manufacturer’s instructions. Do no
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WIR TX75 Two-Channel Infrared Transmitter System Overview The WIR TX75 two-channel infrared transmitter combines infrared modulator and emitter technology into a single mountable enclosure—which reduces operating costs, eliminates the need for rack space and eases set-up. The WIR TX75 is ideal for high-quality audio programs such as music, theater and audio description. The WIR TX75 will accept any line level, balanced or unbalanced audio inputs. Infrared receivers detect the transmission and
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WIR TX75 Two-Channel Infrared Transmitter Installation Procedures Determine Coverage Area When using the WIR TX75 transmitter in single-channel mode with the RX22-4 receiver, the system coverage area will exceed 5000 ft² (185 m²). WIR TX75 units automatically adjust to give the best coverage area possible in both 1-channel and 2-channel modes. Figure 1 illustrates typical coverage pattern for the TX75. This can be affected by direct/indirect sunlight, reflections on walls and room constructio
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WIR TX75 Two-Channel Infrared Transmitter Optional WIR TX75-S Emitter for Additional Coverage For larger facilities, additional emitters can be used to increase the total coverage area. The WIR TX75 is capable of driving two WIR TX75-S slave emitters. Power, baseband and digital data bus are fed via CAT-5e cable to each TX75-S slave. Figure 2: overlapping illumination patterns to cover larger listening areas. A158 Figure 3: coverage area with second emitter added to same emission point (50% inc
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WIR TX75 Two-Channel Infrared Transmitter Figure 5: WIR TX75 master and two slaves at an angle of 35° to each other. 180 160 140 120 100 80 60 40 20 0 A159 Control Panel Figure 6: WIR TX75 master rear view CH 1 AUDIO SLAVE TRANSMIT SLAVE POWER POWER INDICATOR INDICATOR LEVEL INDICATOR (YELLOW) (GREEN) (YELLOW) MIC ADJUSTMENT CH 2 AUDIO POWER LEVEL INDICATOR INDICATOR MIC IN INDICATOR (YELLOW) LIGHTS (ON/OFF) TX75 BUS TX75 BUS POWER IN MIC CHANNEL RCA IN RCA IN OUT TO OUT TO SELECTOR (2.3)
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WIR TX75 Two-Channel Infrared Transmitter Connect Power WARNING: MAINS VOLTAGE MUST NOT FALL BELOW 100VAC, 0R SYSTEM PERFORMANCE WILL BE GREATLY REDUCED. UNIT MAY ENTER RESET MODE UNTIL POWER IS RESTORED. 1. Plug the power supply output cord into “Power In” on the WIR TX75. 2. Attach a line cord to the power supply. 3. Plug the power supply into the AC outlet. TFP 046: 100-240 VAC IN, 50 / 60 Hz. This system is designed for class 2, low-voltage wiring. Always follow local electrical codes when
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WIR TX75 Two-Channel Infrared Transmitter Adjust the Audio Level Line Level Source After an audio signal has been connected to the transmitter, adjust the audio source gain until the WIR TX75 audio-level indicator for that channel blinks periodically. Microphone Source Speak into the microphone from a normal distance and at a natural voice level. Use the microphone gain adjustment on the TX75 to set the gain to the point where the audio level indicator on the selected channel blinks periodical
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WIR TX75 Two-Channel Infrared Transmitter Troubleshooting For easier troubleshooting, the TX75 units are equipped with a series of self-tests and indications. Please see WIR TX75 indicator lights table on page 12 to aid in troubleshooting. The WIR TX75 “Power Indicator” is not lit: • Make sure the power supply is plugged into the transmitter and any remote power switch is on. • Set the “Indicators” switch on the back panel to “On”. • Make sure the electrical outlet is on. • Make sure the 48 VDC
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WIR TX75 Two-Channel Infrared Transmitter WIR TX75 Indicator lights INDICATOR ON UNIT STATE DESCRIPTION On steady Unit is powered and actively transmitting Power Indicator – Green Fade-on, Fade-off… (continuous) Unit is powered and in sleep/power-save mode (no audio signal Master or Slave (round or rectangle) detected, unit is not transmitting) Fast blink (continuous) Self test has detected an internal failure on this unit Blinking periodically Audio is present on this channel and is set to t
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WIR TX75 Two-Channel Infrared Transmitter Optional Receivers WIR RX15-2 Receiver: LEFT INFRARED RIGHT SENSOR POWER/CHANNEL SWITCH POWER/ BATTERY CHANNEL COVER INDICATOR VOLUME KNOB MONITOR/MUTE BUTTON AUDIO INPUT JACK A169 WIR RX18 Receiver FREQUENCY SELECTION SWITCH 2.3 MHz, STEREO, 2.8 MHz VOLUME CONTROL BALANCE BATTERY CONTROL (BAT AP07D) A163 WIR RX22-4 Receiver: CHANNEL EARPHONE SELECTOR JACK OFF "ON" ON/OFF VOLUME SWITCH INDICATOR A162 NOTE: On the RX22-4, channel 1=2.3 MHz, channel 2=2.
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WIR TX75 Two-Channel Infrared Transmitter Infrared Transmitter Specifications Model WIR TX75 (Master) Dimensions, Weight: 10.0" W (25.4 cm) x 3.1" D (7.9 cm) x 1.5" H (3.8 cm) w/o faceplate or 2.5" H (6.4 cm) w/faceplate, 0.6 lbs (0.3kg) Color: Black with silver colored silk screen and silver colored faceplate Optional: white colored faceplate Power Supply: Desktop style international power supply with IEC line cord, 100-240 VAC input, 50-60Hz, 24W; 48VDC output DC Power Input: 2.5mm ID barrel c
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WIR TX75 Two-Channel Infrared Transmitter Infrared Emitter Specifications Model WIR TX75-S (Slave) Dimensions, Weight: 10.0” W (25.4 cm) x 3.1” D (7.9 cm) x 1.5” H (3.8 cm) w/o faceplate or 2.5” H (6.4 cm) w/faceplate, 0.6 lbs (0.3kg) Color: Black with silver colored silk screen and silver colored faceplate Optional: white colored faceplate Sleep/Power Save Mode: Shuts off carrier when no audio is present for 3 minutes Modulation: FM Wideband, ±50kHz deviation max, 50 μS pre-emphasis Carrier Fre
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WIR TX75 Two-Channel Infrared Transmitter Limited Warranty Williams Sound products are engineered, designed, and manufactured under carefully controlled conditions to provide many years of reliable service. Williams Sound warrants the WIR TX75 infrared listening system against defects in materials and workmanship for two (2) years. During the first two years from the purchase date, we will promptly repair or replace the WIR TX75 infrared listening system. Microphones, earphones, headphones, b
