TOA IR-842PMU Infrared Audio System Main Unit Instruction Manual

TOA IR-842PMU Infrared Audio System Main Unit

Specifications

• Model: IR-842PMU-AM, IR-842PSU, IR-842R
• Horizontal Coverage: 15m (49.21 ft)
• Vertical Coverage: 15m (49.21 ft)
• Ceiling Height (IR-842R): 2.5 to 4.5m (8.2 to 14.76 ft)
• IR Coverage Radius (IR-842R):
  • Ceiling height 2.5m: About 7m (23 ft)
  • Ceiling height 3.0m: About 6.5m (21.5 ft)
  • Ceiling height 3.5m: About 6m (20 ft)
  • Ceiling height 4.0m: About 6m (20 ft)
  • Ceiling height 4.5m: About 6m (20 ft).

INFRARED WIRELESS RECEIVER COVERAGE AREA

IR-842PMU-AM or IR-842PSU

IR-842R (Ceiling-mounted type)

IR-842R

| 2.5 m (8.20 ft)|

About 7 m (23 ft)

3.0 m (9.84 ft)
3.5 m (11.48 ft)|

About 6.5 m (21.5 ft)

4.0 m (13.12 ft)
4.5 m (14.76 ft)| About 6 m (20 ft)

INSTALLING THE INFRARED WIRELESS RECEIVER

Installation Precautions
Because the infrared wireless microphone and receiver have their own directivity for infrared transmission and reception, take care that they are installed and operated under stable communication conditions.

• Number of infrared wireless receivers
  • Use up to two receivers per system.
• Installation Position
  • The infrared beam can be blocked by a physical object leading to loss of reception. To avoid this, install multiple infrared wireless receivers to allow for redundant receivers.
  • Install multiple infrared wireless receivers to allow constant communications between the infrared microphone and at least one infrared wireless receiver in any specific situation. When installing the infrared wireless receivers, take care that they can sufficiently cover the communications area from different angles. If the infrared wireless microphone is used in the communications area where only one infrared wireless receiver is installed, communications may be interrupted when the infrared beam is blocked by a human body or other objects.

Note

• In this figure, the IR-842R receives a signal from the infrared wireless microphone because there is no obstruction between the microphone transmitter and the receiver.

• However, communication to the MAIN UNIT or SUB UNIT could be interrupted if the user’s body blocks the beam.

• In this figure, the IR-842R receives a signal from the infrared wireless microphone because there is no obstruction between the microphone transmitter and the receiver.

• However, communication to the MAIN UNIT or SUB UNIT could be interrupted if the user’s body blocks the beam.

  • Install the infrared wireless receivers above user height wherever possible.
  • Install the infrared wireless receivers at a height that protects them from damage that could result from being hit by an object.

• Distance between the infrared wireless microphone and receiver
  Malfunctions or noise could result from the infrared wireless microphone and receiver being too close to each other. Keep the infrared wireless microphone at least 2 m (6.56 ft) away from the receiver.

• Radio Noise
  Do not install the infrared wireless receiver and cables close to devices that can generate radio noise, such as Inverter-powered equipment (fluorescent lights, air-conditioners, etc.), digital equipment, PCs and other computer equipment.

• Sunlight and Fluorescent Lighting
  System malfunctions or noise could result from installing the infrared wireless receiver in locations exposed to sunlight, fluorescent lighting or other infrared-generating sources. When installing the receiver, make the following arrangements so that it is not exposed to infrared sources:

[Avoid Sunlight]

• To prevent equipment from being directly exposed to sunlight, block the sunlight using curtains or window shades.
• When mounting the receiver to a ceiling, keep it at least 2 m (6.56 ft) away from the window.

[Install Away From Fluorescent Lighting]
When installing the receiver, keep it at least 50 cm (1.64 ft) away from the fluorescent lighting.

[Avoid installing close to other infrared sources shown below]

• Lighting device
• Liquid crystal projectors, overhead projectors and incandescent lights
• Plasma displays
• Remote control units, infrared LAN and other infrared devices
• Dimmers

INSTALLING THE MAIN UNIT OR SUB-UNIT

Wall Mounting

• Step 1. Loosen the 2 screws used to fix the wall mounting bracket for the main unit or sub-unit.

• Step 2. Adjust the size and angle of the wall mounting bracket and retighten it with screws.
  Note
  If the foot pads hinder the angle adjustment of the wall mounting bracket, you can remove the foot pads first.

• Step 3. Secure the 2 mounting screws to the wall with the head of the mounting screws exposed to the wall by 4-6mm.
  Note
  Since no mounting screws are supplied with the MAIN UNIT or SUB UNIT, separately prepare screws that are appropriate for the construction of the wall.
  Install the speaker only in a location that can structurally support the weight of the speaker and the mounting bracket. Doing otherwise may result in the speaker falling and causing personal injury and/or property damage.

• Step 4. Hook the MAIN UNIT or SUB UNIT with the wall mounting bracket installed to the wall mounting screws.
  Note
  Ensure that the unit has no loose joints after installation to prevent accidents that could result in personal injury.

• Step 5. Finally, secure the safety rope of the MAIN UNIT or SUB UNIT to the wall with a mounting screw.
  Note
  Since no mounting screws are supplied with the MAIN UNIT or SUB UNIT, separately prepare screws that are appropriate for the construction of the wall.

Mounting Main Unit or Sub Unit on the Speaker Stand

Note

• Avoid installing or mounting the unit in unstable locations, such as on a rickety table or a slanted surface. Doing so may result in the unit falling and causing personal injury and/or property damage.
• Avoid placing the unit in a doorway or other high-traffic area as people may trip on the equipment and cords, or be injured by falling objects.

Installation with IR-842HY speaker stand adapter

1. Step 1. Loosen the 2 screws on the bottom of the MAIN UNIT or SUB UNIT that are used to fix the speaker bracket adapter.
2. Step 2. Lock the speaker bracket adapter with the screws.
3. Step 3. Install the speaker stand adapter onto the speaker stand and tighten the bracket fixing screw.

Installation with ST-34B speaker stand

• Step 1. Loosen the 2 screws on the bottom of the MAIN UNIT or SUB UNIT that are used to fix the speaker bracket adapter.

• Step 2. Lock the speaker bracket adapter with the
  screws.

• Step 3. Loosen the knob B, and spread the legs pulling up the outer pipe until the stays extend horizontally.
  Then, retighten the knob B.

• Step 4. Mount the speaker (with the bracket mounted) onto the stand.
  Loosen the bracket fixing screw enough for the bracket to fit onto the inner pipe.

• Step 5. Determine the speaker direction, and tighten the bracket fixing screw.
  The speaker’s horizontal angle is adjustable in 90° steps.

• Step 6. Adjust the stand height.
  Loosen the knob A. Extend the inner pipe to the desired position while pulling the safety pin.
  The inner pipe has stopper holes to catch the safety pin at about 15 cm intervals along the pipe length. Ensure that the safety pin is securely inserted into one of the holes after adjusting the stand height.
  Caution
  Never pull the inner pipe beyond the red mark on the pipe.

• Step 7. Tighten the knob A.

INSTALLING THE IR-842R INFRARED WIRELESS RECEIVER

Ceiling Mounting Method 1

1. Step 1. Loosen the mounting bracket in the centre of the back of the infrared wireless receiver by rotating it counterclockwise.
2. Step 2. Lock the mounting bracket to the ceiling with screws.
3. Step 3. Align the infrared wireless receiver with the mounting bracket and turn it clockwise until you hear a “click”.
4. Step 4. Connect the signal output cable of the infrared wireless receiver.

Ceiling Mounting Method 2

• Step 1. Remove the cover of the infrared wireless receiver by turning it counterclockwise.
• Step 2. Lock the infrared wireless receiver to the ceiling with screws.
• Step 3. Turn the cover back clockwise.
• Step 4. Connect the signal output cable of the infrared wireless receiver.

SPECIFICATIONS

IR-842PMU-AM IR Audio System – Main

AUX: -10 dBV, 10 kΩ, stereo pair, unbalanced, headphone jack Bluetooth input: Ver. 5.0, Max. 10m

IR-CHA: -42dBV, receiving frequency 3.100 MHz IR-CHB: -42dBV, receiving frequency 3.350 MHz

Audio Output| Sub unit speaker OUT: 23.8 dBV, unbalanced, lever terminal

AUX OUT: -10 dBV, 10 kΩ, stereo pair, unbalanced, headphone jack

Frequency Response| 20 – 20,000 Hz, ±3 dB
Total Harmonic Distortion| 0.1% (LPF 20 kHz)
S/N Ratio| Over 70 dB (A weighted)
Phantom Power| +24 VDC, switchable, MIC input
EXT. IR Receiver| RJ-45 Connector
Indicators| Power(green) …1, IR CH-A(green) …1, IR CH-B(green)…1,

IR CH-A Priority(red) …1, Bluetooth(blue) …1, Phantom power(green) …1

Operation| IR CH-A volume control, IR CH-B volume control, MIC volume control

AUX IN volume control, AUX OUT volume control, Bluetooth volume control

Operating Temperature| 0 °C to +40 °C (32 °F to 104 °F)
Operating Humidity| 90 % RH or less (no condensation)
Finish| Enclosure: MDF, white, paint

Punched net: Surface-treated steel plate, white, paint

Dimensions| 218 (W) x 339.6 (H) x 254 (D) mm (8.60″ x 13.37″ x 9.99″)
Weight| 4.97 kg (10.96 lbs)
Accessory| AC Power Adapter …1, Wall Mounting Bracket …1

Note: The design and specifications are subject to change without notice for improvement.

IR-842PSU-AM IR Audio System – Sub

IR Receiving Frequency| IR-CHA: 3.100 MHz

IR-CHB: 3.350 MHz

---|---
EXT. IR Receiver| IN: RJ-45 Connector OUT: RJ-45 Connector
Audio Input| Main unit speaker OUT: 23.8 dBV, unbalanced, 40W/6Ω, lever terminal
Operating Temperature| 0 °C to +40 °C (32 °F to 104 °F)
Operating Humidity| 90 % RH or less (no condensation)
Finish| Enclosure: MDF, white, paint

Punched net: Surface-treated steel plate, white, paint

Dimensions| 218 (W) x 339.6 (H) x 254 (D) mm (8.60″ x 13.37″ x 9.99″)
Weight| 4.52 kg (9.96 lbs)
Accessory| Wall Mounting Bracket …1

Note: The design and specifications are subject to change without notice for improvement.

IR-842R-AM External IR Receiver

IR Receiving Frequency| IR-CHA: 3.100 MHz

IR-CHB: 3.350 MHz

---|---
EXT. IR Receiver| RJ-45 Connector
Operating Temperature| 0 °C to +40 °C (32 °F to 104 °F)
Operating Humidity| Under 90% RH (no condensation)
Finish| Enclosure: ABS, black
Dimensions| 110.4 (W) x 110.4 (H) x 49 (D) mm (4.35″ x 4.35″ x 1.92″)
Weight| 138 g (0.3 lbs)

Note: T he design and specifications are subject to change without notice for improvement.

IR-842HY-AM Speaker Stand Adapter

Note: The design and specifications are subject to change without notice for improvement.

IR-842BAG-AM Bag

Note: T he design and specifications are subject to change without notice for improvement.

EMC PRECAUTIONS
Warning: Operation of this equipment in a residential environment could cause radio interference.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. this device may not cause harmful interference,
2. this device must accept any interference received, including interference that may cause undesired operation.
   Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

NOTE : This equipment has been tested and found to comply with the limits for a Class B digital device, under Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used by the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

To maintain compliance with FCC’s RF Exposure guidelines. This equipment should be installed and operated with a minimum distance between 20cm of the radiator and your body: Use only the supplied antenna.
Note: This equipment complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following two conditions:

1. This device may not cause interference; and
2. This device must accept any interference, including interference that may cause undesired operation of the device.

The device should be installed and used within a distance of at least 20 cm between the radiator and the body. Cet appareil est conforme aux CNR exempts de licence d’Industrie Canada. Son fonctionnement est soumis aux deux conditions suivantes:

Manufacturer

TOA Corporation
7-2-1, Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo, Japan

Traceability Information for Americas
Authorized representative

• TOA Canada Corporation
• 3670 Odyssey Drive, Unit 1, Mississauga, ON L5M 0Y9, Canada
• TEL: +1-800-263-7639

www.toacanada.com

Frequently Asked Questions

• Q: Can the infrared wireless receiver be placed near fluorescent lighting?
  • A: It is recommended to keep the receiver at least 50cm away from fluorescent lighting to avoid interference.
• Q: How should I prevent interruptions in communication with the main or sub-unit?
  • A: Ensure no obstructions are blocking the infrared beam between the microphone transmitter and the receiver to prevent interruptions.

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