Toa IR-702T User Manual download pdf (Page 11)

10.1. 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 2 or more receives.

• Installation Position

· The infrared beam can be blocked by a human body or

other objects. To avoid this, install multiple infrared

wireless receivers that can be viewed from the infrared

wireless microphone.

· Install multiple infrared wireless receivers so as 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.

· Install the infrared receiver at a height of 2 – 3 m (6.56 – 9.84 ft) from the floor.

· 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.), dimmers, digital equipment, PCs and

other computer equipment.

• Infrared Receiver Input Terminal

Take care not to short-circuit the infrared wireless receiver's input terminal and the infrared wireless tuner's

receiver input terminal, as the power supply could be shorted, potentially resulting in equipment failures.

• 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.

10. INSTALLING THE INFRARED WIRELESS RECEIVER

IR-510R

IR-500R

Ceiling

Wall

Note

In this figure, the IR-510R receives a signal

from the infrared wireless microphone because

there is no shield between the two.

However, communication to the IR-500R could

be interrupted if the user's body blocks the

beam like a shield.

Over 2 m (6.56 ft)

Sunlight

Ceiling-mounted type

Wall-mounted type

Fluorescent

lighting

Over 50 cm

(1.64 ft)

Ceiling-mounted type

Wall-mounted type

Over 50 cm

(1.64 ft)

Over 50 cm

(1.64 ft)

[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

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Toa IR-702T User Manual Page 11

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