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Summary of Contents for TeachLogic VoiceLink IV
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Page 2: Safety Instructions
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. - Page 3 VoiceLink - Infrared Wireless Microphone System The VoiceLink IV is an infrared wireless microphone system that can be added to any sound system. It can be a supplement to a Bogen or TOA sound reinforcement system or an addition to an Extron or Crestron multi-media system.
- Page 4 VoiceLink IV Receiver IR-468N The VoiceLink IV (IR-468N) is a four channel receiver for simultaneous reception of four Infrared wireless microphones. It receives a composite signal from a dome sensor, processes it and produces a balanced analog audio output for each microphone or a combined balanced output of all microphone inputs to be fed to the input of an amplified sound system.
- Page 5 Rear Panel ______________________________________________________ Phone Jack (1/4”) is an unbalanced output of combined channels A, B, C, D. Line / Mic Switch selects the output signal to be either “Line” or “Mic” level. One male XLR Connector is a balanced line level output of combined channels A, B, C, D.
- Page 6 The ceiling dome sensor is a highly sensitive infrared receptor and provides optimum performance. One dome sensor comes with the VoiceLink IV system. The sensor needs to be installed on the ceiling. It comes with a T-Bar twist-on mounting/support bracket and 50 feet of plenum rated cable with RCA connector on each end.
- Page 7 Drop-in Battery Chargers The battery chargers are specifically designed to recharge NiMH batteries. They charge the batteries at an optimum rate and turn “off” at end of charge. The chargers feature a recycle function, which is used to restore the battery charge capacity and extend their service life.
- Page 8 Infrared Transmitters Crescent (IRT-30) Crescent lightweight microphone/transmitter designed to be worn under the chin suspended by an adjustable lanyard. The Crescent shape was designed for efficient performance and user comfort. The dual internal microphones render optimum voice pick up and quality reproduction. The Crescent provides an auxiliary input (3.5mm) to accommodate the insertion of an iPod™...
- Page 9 Body-Pack Transmitter (IRB-30), usually worn on the waistband, is the component that transmits the IR signal to the sensor. The IRB-30 has 10 emitting diodes on its front panel and is powered by two rechargeable NiMH batteries. Controls include a power “on/off”...
- Page 10 Collar Microphone (CM-835) is a flexible rod that is formed around the neck. The end with the microphone and windscreen is then contoured up toward the mouth. The cord exits the rod in the center in back, out of the way, and is plugged into the body-pack.
- Page 11 Body – Pack Transmitter and its Features • An external microphone needs to be plugged into the Body-Pack o The Plug-in microphone (LM-300) is a small capsule that plugs directly into the top of the body-pack transmitter. Slip the lanyard over your head and clip Body-Pack to lanyard, use as a pendant type microphone.
- Page 12 Ch. B. • Speak into the microphone and adjust the volume using Ch. B volume control on the VoiceLink IV. • While talking, walk around the perimeter of the room to verify 100% reception of the signal.
- Page 13 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 14 Installation of the Dome Sensor The ideal location for the dome sensor would be in the center of the ceiling. This will provide a clear signal path for the IR transmission from the transmitter to the dome sensor without obstruction. In addition, you will have 360º...
- Page 15 Final Connection of the VoiceLink IV 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...
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Page 16: System Operation
(Body-Pack, Pendant or Handheld) to confirm good connectivity and quality audio. Turn the VoiceLink IV “ON” , Red power LED Confirm power to sensor, Green LED light in center of sensor Set volume of each channel “A” “B” “C” & “D” to mid scale (12’’clock) Using a Transmitter (Handheld, Pendant, or Body-Pack with microphone) Select channel “A”... - Page 17 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 18 Feedback (Mic Squeals) Feedback is the result of a resonant sound coming from the speaker into the microphone creating a self generating closed audio loop. This can only be avoided by not walking under or directly in front of the speaker. Relocation of speaker is another consideration to prevent the close proximity of microphone to speaker.
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Page 19: Specifications
SPECIFICATIONS IR-468N RECEIVER Receiver Input Infrared FM Modulation FM Wide-band Reception Frequencies Ch. A: 2.08 MHz Ch. B: 2.54 MHz Ch. C: 2.30 MHz Ch. D: 2.80 MHz Infrared Wavelength 850 nm Pilot Tone Signal Ch. A: 32.768 KHz De-emphasis 50 µs Frequency Response 40 Hz, -18KHz, ±... - Page 20 GENERAL TRANSMITTER SPECIFICATIONS Transmission Carrier Infrared Transmission Frequencies IRH-35 2.08 MHz, 2.54 MHz IRH-40 2.30 MHz, 2.80 MHz User Channel Switchable Ch A or B (Crescent, Pendant, Body-Pack) Ch A or B IRT-35 Handheld Ch C or D IRT-40 Handheld Transmitting Diodes FM Wide-Band Modulation...
- Page 21 IRB–30 BODY-PACK TRANSMITTER Transmission Angle 180° User Controls Mic. Volume Power On/Off IR power Output: (Hi/Lo) Ch. Select (A or B) External Mic. Input Lo-z, 3.5mm Waist Band Clip Heavy Spring Wire Dimensions 4¾” H x 2 ¾” W x ¾” D Weight 4.8 oz.
- Page 22 IRT-30 CRESCENT TRANSMITTER Shape Crescent, Under Chin Lanyard Attachment Snap-In, Top (Safety) Transmission Angle 180°, Conical Emitting Diodes Mute Switch Momentary, On/Off Aux. Input (3.5mm) Switchable, Mic. or Line Level Volume Control Thumb, Rotary Two Microphone Elements Condenser Type, Unidirectional Battery Single “AA”...
- Page 23 SINGLE-INSERT CHARGER (BRC-101) Charging Port (Single) Pendant or Handheld Flashing Red LED Batteries being charged Solid Green LED Batteries fully charged Dimensions 5” W x 3¾” D x 1½” H Weight 7.4 oz. DUAL DROP-IN CHARGER (BRC-202) Charging Ports (Two) Pendant or Handheld Flashing Red LED Batteries being charged...
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Page 24: Five Year Limited Warranty
Authorization Number previously assigned by TeachLogic personnel. Advance warranty replacements will be made per the discretion of TeachLogic personnel. TeachLogic will pay return shipping cost on all warranty repairs or replacements. For Warranty Service: TeachLogic, Inc. Tel: (800) 588-0018 or (760) 631-7800... - Page 26 TeachLogic, Inc. 1688 Ord Way Oceanside, CA 92056 Ph: 1•800•588•0018 Fax: 1•760•631•1283 Email: sales@teachlogic.com enet: www.teachlogic.com...
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