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Tech Logic VoiceLink II User Manual
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Tech Logic VoiceLink II User Manual

Infrared sound field system
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Summary of Contents for Tech Logic VoiceLink II

  • Page 2 SAFETY INSTRUCTIONS ________________________ 1. Read Instructions: All safety and operation instructions should be read before operating this TeachLogic product. 2. Retain Instructions: Safety and operating instructions should be kept for future reference. 3. Water & Moisture: This product should not be operated near water. 4.
  • Page 3 VoiceLink - Infrared Wireless Microphone System The VoiceLink II is an infrared wireless microphone system that can be added to any sound system. It can be a supplement to an Extron, Crestron, Atlas Sound, or any amplified multi-media system. With the addition of a VoiceLink system to your multi-media system, it will transform your multi-media system into a wireless classroom sound field system.
  • Page 4 VoiceLink II The VoiceLink II (IRV-268N) is a two channel receiver for simultaneous reception of two Infrared wireless microphones. It receives the IR signal from a dome sensor, processes it and produces an analog signal for the input of an amplified sound system. It features individual volume controls for the microphones and provides either a balanced or unbalanced audio output.
  • Page 5 Rear Panel _________________________________________________________________ Phone Jack (1/4”) is an unbalanced output of combined channels “A” and “B”. Line / Mic Switch selects the output signal to be either “Line” or “Mic” level. Three Pin Phoenix Connector is a balanced line level output of channel “A” and “B”...
  • Page 6 Infrared Dome Sensor (ICS-50) Dome Sensor is the receiving component mounted on the ceiling that collects the modulated infrared signal from the transmitter (Pendant, Handheld, or Body-Pack). The composite signal is sent to the receiver input via a dual shielded cable. The sensor has 30 receiving diodes providing 360...
  • Page 7 Infrared Wall Sensor (IRW-50 Wall Sensor is an IR receiving component designed for wall mounting. The sensor has 15 receiving diodes providing 180 conical reception from the front. Wall sensors can be used as the sole source of reception or as a secondary area of reception, supplementing another sensor.

  • Page 8: Infrared Transmitters

    Infrared Transmitters The infrared transmitter is the component that is fed a vocal signal through a microphone and it transmits that vocal signal via an infrared light beam to the receiving sensor. The transmitter is comprised of a microphone input, signal processor and 10 transmitting diodes for signal transmission to the sensor.
  • Page 9 Pendant Transmitter (IRT-89) is a complete self-contained unit with a built-in microphone. It is the smallest transmitter and is usually worn around the neck. An adjustable lanyard allows for optimum positioning for performance and comfort. The transmitter is easily clipped on and off from the lanyard for handheld use or student participation.
  • Page 10 Body-Pack Transmitter (IRB-30) is usually worn on the waistband with an external microphone plugged in i.e. Lapel (LM-835), Collar (CM-835) or Headband (HBM-835). Or with a lanyard and the Plug-in microphone (LM-300) plugged into the top, it can be worn as a pendant microphone / transmitter. The 10 emitting diodes are located behind the dark red window providing 180...
  • Page 11 Headband Microphone (HBM-835) is worn around the head with the microphone located on the end of a flexible boom. This is the best performing microphone because of closeness of mouth to microphone and always in correct position regardless of head orientation Ultra Lite Microphone (ULM-835) is a miniature boom style microphone supported by a wire around the left ear.
  • Page 12 Drop-in Battery Chargers (BRC-30) (BRC-101) (BRC-202) The battery chargers are specifically designed to recharge NiMH batteries at an optimum rate for maximum operating capacity and extended service life. The chargers feature a recycle function, which is used to restore the battery charge capacity and extend their service life.
  • Page 13 Drop-in Battery Charger Features and Operating Procedures All drop-in chargers feature regulated charging rate, full charge maintenance, recycle function and auto protection against incorrect battery insertion. FOR USE WITH RECHARGEABLE NiMH BATTERIES ONLY. Operation and features of Drop-in Chargers o Insert transmitter into appropriate receptacle o (BRC-30), Red LED will light indicating batteries being charged (4 –...
  • Page 14 Installation of System Location of receiver is primarily determined by user accessibility and availability of an electrical outlet. Location of the sensor and routing of the sensor cable is a more critical issue. It is important to observe a central location for the sensor and adherence to the guidelines for the routing the sensor cable Location of Receiver Select a location that is close to a standard wall electrical outlet...
  • Page 15 IR Sensor Installation (Ceiling Mount)  Factors to consider when determining Sensor location o Do not locate in high intense fluorescent lighting or near ballast o No solid obstruction between transmitter and sensor o Avoid high level sunlight from outside o Do not install in front or rear of video projector lens o Observe that there are no other IR radiating devices or controls...
  • Page 16 Push an awl or similar pointed round rod through tile (for screw holes) Place the two long screws (3X25mm) through bracket and tile Screw into sensor holes and tighten snug Route the sensor cable to its exit location near the receiver Reinstall the ceiling tile.
  • Page 17 Final Connection of the VoiceLink II to Audio System  Power supply plugged into AC outlet, DC plug plugged into receiver  Dome sensor plugged into sensor input, coil extra cable neatly and place out of view  Connect receiver output to amplifier or media sound system...

  • Page 18: System Operation

    (Body-Pack, Pendant or Handheld) to confirm good connectivity and quality audio.  Turn the VoiceLink II “ON” , Red power LED  Confirm power to sensor, Green LED light in center of sensor  Set volume of each channel “A” & “B” to mid scale (12’’clock) ...
  • Page 19 TROUBLE SHOOTING GUIDE ____________________________________ Note: Most problems are directly related to low battery power. So please verify that the batteries are fully charged and less than two years old. No Sound Check for power. Red LED next to power switch. (Nothing works) Verify that AC outlet has power.
  • Page 20 Feedback (Mic Squeals) Feedback is the result of a resonant sound coming from the speaker into the microphone creating a closed loop audio signal. This can only be avoided by not walking under or in front of the speaker. Or reduce the gain (volume).

  • Page 21: Five Year Limited Warranty

    Five Year Limited Warranty TeachLogic Infrared products are guaranteed to be free of defects in workmanship or material for a period of five (5) years from date of original purchase, subject to the following conditions: 1. Warranty excludes defects caused by normal use and wear, any abuse, or failure to use the product in accordance per instructions.

This manual is also suitable for:

Irv-268n