CAUTION! Do NOT plug the WIR TX75 C/D PRO (master) CAT-5e / RJ45 cable into anything other than the WIR TX75 S slave(s). The TX75 C/D PRO CAT-5e / RJ-45 connection is proprietary and is NOT compatible with ethernet or any other RJ-45 systems.
Use only the power supply provided by Williams Sound. Other power supplies may have similar specifications, but may not be equivalent in emissions ratings, in-rush current, etc. Use of an unapproved power supply may leave the device partially or completely inoperable, and will void the warranty.
Reflections of the infrared light from walls, ceilings, and floors may change these patterns. The WIR TX75 C/D PRO can be operated with or without the faceplate, if desired. The faceplate can be removed and painted to match room decor. Lightly sand faceplate with 400 grit sandpaper apply primer and two coats of final color. Do not paint the...
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 C/D PRO 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.
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Figure 3: Coverage area with second emitter added to same emission point (50% increase) RX22-4: 12000ft² TX75 Master + Slave w/RX22-4: 24000ft² Figure 5: WIR TX75 C/D PRO master and two WIR TX75 S slaves each at an angle of 35° from the master. A577 1 Master + 2 Slaves at 35°:...
Power over Ethernet The WIR TX75 C/D PRO has the ability to use a POE power supply to power itself and one slave. When using POE, one of the slave connections is used for the POE connection, and the other can be used to run one slave. See the section “Connecting Master and Slave Units”.
1= SHIELD, 2= RED (SIGNAL IN PHASE), 3= BLACK (SIGNAL) the Mic Channel Switch to select “2.3” on the WIR TX75 C (or “3.3” MHz on the WIR TX75 D). To assign the microphone to Ch 2 use the Mic Channel Switch to select “2.8” on the WIR TX75 C (or “3.8” MHz on the WIR TX75 D).
Connecting Master and Slave Units Connect all WIR TX75 C/D PRO master and WIR TX75 S slave(s) units together using CAT-5e cables, the “to slave” jacks on the master, and the “Master In” jack on the slave(s). For systems with no slave units, the CAT-5e cables and “to slave” jacks are not used.
WIR TX75 C/D Infrared Transmitter Troubleshooting For easier troubleshooting, the WIR TX75 C/D PRO units are equipped with a series of self-tests and indications. Please see WIR TX75 C/D PRO indicator lights table on page 12 to aid in troubleshooting.
The WIR TX75 C/D and WIR TX75 S can be mounted on any camera tripod stands with a 1/4” - 20 threaded connector. The WIR TX75 C/D and WIR TX75 S can be operated with or without the faceplate, if desired. The faceplate can be removed and painted to match room decor.
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WIR TX75 C/D Infrared Transmitter WIR RX22-4 Receiver: CHANNEL SELECTOR EARPHONE JACK ON/OFF "ON" VOLUME SWITCH INDICATOR WIR RX18 Receiver A162 FREQUENCY SELECTION SWITCH 2.3 MHz, STEREO, 2.8 MHz VOLUME CONTROL BALANCE BATTERY CONTROL (BAT AP07D) A163 NOTE: On the RX22-4, channel 1=2.3 MHz, channel 2=2.8 MHz, channel 3=3.3 MHz, and channel 4=3.8 MHz.
Sleep/Power Save Mode: Shuts off carrier when no audio is present for 3 minutes Modulation: FM Wideband, ±50 kHz deviation max, 50 μS pre-emphasis Carrier Frequencies: WIR TX75 C: 2.3 MHz (Ch 1) and 2.8 MHz (Ch 2). WIR TX75 D: 3.3 MHz (Ch 1) and 3.8 MHz (Ch 2).
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 Frequencies: WIR TX75 C: 2.3 MHz (Ch 1) and 2.8 MHz (Ch 2). WIR TX75 D: 3.3 MHz (Ch 1) and 3.8 MHz (Ch 2).
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 PRO infrared listening system 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 WIR TX75 C/D PRO infrared listening system.
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