Williams Sound MOD 112 Guía de instalación descargar pdf (Pagina 4)

Williams Sound

Helping People Hear

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Installation Procedures

Installation Step 1: TX6 Transmitter Set-Up

Selecting a Mounting Location

The most important principle to understand when

installing an infrared system is that invisible infrared

light behaves just like visible light. It does not pass

through opaque objects such as walls, curtains, or

people. It does pass through windows and door

openings and can bounce and scatter off reflective

walls, floors, and ceilings. The IR transmitter panels

cannot be concealed or covered up, nor can the

infrared “eye” on receiver units. Receivers work best

with a clear line-of-sight to the transmitter panels.

The TX600 Two–Channel Infrared System should

not be installed outdoors or indoors where there is

considerable direct sunlight. Sunlight generates

infrared interference. Certain types of high-efficien-

cy lighting fixtures can also generate interference

because they use high frequency modulation.

Illumination Patterns

The infrared illumination pattern from a single trans-

mitter is cone-shaped, with a 50° angle. The hori-

zontal and vertical patterns are identical. Figures 2

and 3 show examples of coverage patterns.

These patterns are the direct radiation pattern. The

infrared radiation does not drop to zero outside the

illustrated patterns; it decreases. It still may be use-

able at a greater distance, depending on receiver sen

sitivity and reflection characteristics of the room.

25°

50 ft.

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130 ft.

wo Channel Coverage

Single Channel Coverage

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Figure 2: Infrared Illumination Patterns

Two Channel Coverage

op Perspective

Single Channel Coverage

Maximizing Coverage By Using Two Transmitters

Note: Single Channel Coverage Area = 10,000 sq. ft.

wo Channel Coverage Area = 5,000 sq. ft.

Figure 3: Side Perspective

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Williams Sound MOD 112 Guía de instalación Pagina 4

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