Williams Sound IR SY1 Users Manual
IR T1
Small Area Infrared Transmitter
USER MANUAL
MAN 212F
IR T01 Small Area Infrared Transmitter
Important Safety Instructions
Please read and keep these instructions.
WARNING! To reduce the risk of fire or electric shock, do not expose the system
to rain or moisture. Do not use this apparatus near water. The system should
not be exposed to dripping or splashing, and objects filled with liquids such as
beverages should not be placed on the transmitter or receivers. Clean only with
a dry cloth.
Attempting to service this device will void the warranty
• Refer servicing to qualified personnel. Servicing is required when the system
has been damaged in any way: if liquid has been spilled or objects have fallen
into the unit, if the unit has been exposed to moisture, if the unit does not
operate normally, or if the unit has been dropped.
• Do not block any ventilation openings. Install in accordance with
manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus that produces heat.
• Use only attachments/accessories specified by the manufacturer.
• Unplug the transmitter during lightning storms or when unused for long periods of
time.
• Be advised that dierent operating voltages require the use of dierent
attachment plugs. Check the voltage in your area and use the correct type.
• Use only the power supply provided by Williams AV. Other power supplies
may have similar specifications, but may not be equivalent in emissions
ratings, in-rush current, etc. Use of an unapproved power supply may leave
the device partially or completely inoperable, and will void the warranty.
• Protect the power cord from being walked on or pinched, particularly at
plugs, receptacles, and near the power jack on the transmitter.
• This apparatus must be grounded.
• The AC Power plug or an appliance coupler is used as the disconnect
device, so the disconnect device should remain readily operable.
For Customers in The United States
This equipment has been tested and found to comply with the limits for Class B
digital device, pursuant to part 15 of the FCC rules.
For Customers in Canada
This Class B digital device meets all requirements of the Canadian Interferencecausing Equipment Regulations. Cet appareil numérique de la classe B respecte
toutes les exigencies du Règlement sur le matériel brouilleur du Canada.
IR T01 Small Area Loop Infrared Transmitter
Recycling Instructions
Please help Williams AV protect the environment. Please take the time to dispose
of your equipment properly.
Product Recycling for Customers in the European Union:
Please do NOT dispose of your Williams AV equipment in the household
trash. Take the equipment to a electronics recycling center, or return the
product to the factory for proper disposal.
System Overview
The IR T1 is a two-channel infrared transmitter combining infrared modulator and
emitter technology into a single mountable enclosure—which reduces operating
costs, eliminates the need for rack space and eases set-up.
The IR T1 is ideal for high quality audio programs such as music, television audio,
and audio description. The IR T1 will accept any line level stereo audio input.
Infrared receivers detect the transmission and convert the light signals back
into audio signals. The IR T1 operating frequencies (2.3/2.8 MHz) minimize high
eciency lighting interference.
No FCC license or radio approval is required with this equipment. It can be used
anywhere in the world.
NOTE: This equipment has been tested and found to comply with the limits for
a Class B 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 may cause
interference, in which case the user will be required to correct the interference at
his own expense.
NOTE: A PLASMA MONITOR OR TELEVISION CAN DEGRADE THE AUDIO QUALITY
OF THE IR T1 TRANSMITTER. FOR BEST PERFORMANCE, THE TRANSMITTER
SHOULD BE POSITIONED AS FAR AWAY AS POSSIBLE FROM ANY PLASMA
MONITOR, TELEVISION OR OTHER INTERFERING DEVICES.
Installation Procedures
Determine Coverage Area
When using the IR T1 transmitter with the RX22-4 receiver, the system coverage
area will exceed 1000 sq. ft. (93 sq. m.). Figure 1 illustrates typical coverage pattern
for the IR T1. This can be aected by direct/indirect sunlight, reflections on walls,
objects in the room and room construction. The patterns illustrated are the direct
radiation pattern. Most objects block infrared light, so the transmitter cannot be
concealed behind walls, glass, curtains, etc. The infrared radiation does not drop to
zero outside the illustrated patterns; it decreases. It still may be useable at a greater
distance, depending on the receiver sensitivity and the reflective characteristics of
the room.
Important: Remember to point the transmitter towards the listening audience. The front
is the surface with the Williams AV logo as shown on the cover of this manual.
See Figure 1.
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