Williams Sound SoundPlus Infrared System WIR SYS 90V Installation Guide download pdf (Page 3)

SoundPlus

Infrared Listening System

MAN 132H

System Overview

The Williams Sound SoundPlus

Infrared Listening System consists of a MOD 232 Modulator(s) and one or more TX9

Emitters which use invisible infrared (IR) light to broadcast speech or music to wireless infrared receivers.

The system is designed to transmit high quality audio for hearing assistance and language translation applications.

Because the system uses infrared light for transmission, it is not affected by interference from radio equipment and

does not interfere with radio equipment. No FCC license or radio approval is required.

The system can be used with microphones as a stand-alone system, or can be connected to other sound

equipment. Infrared systems generally cannot be used in direct sunlight because of sunlight’s large amount of

interfering infrared light.

Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant

to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial environment. This equipment generates,

uses, and can radiate radio frequency energy and, if not installed and used in accordance with the

instruction manual, may cause harmful interference to radio communications. Operation of this equipment

in a residential area is likely to cause harmful interference in which case the user will be required to correct

the interference at his own expense.

NOTICE: A plasma monitor can degrade the audio quality of the SoundPlus

Infrared Listening System.

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Williams Sound SoundPlus Infrared System WIR SYS 90V Installation Guide Page 3