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INSTALLATION CONSIDERATIONS
IMPORTANT: REFER INSTALLATION TO A PROFES-
SIONAL CUSTOM INSTALLER IF YOU ARE UNFAMIL-
1AR WITH ANY OF THE FOLLOWING PROCEDURES.
TOOLS REQUIRED
• 1/8" Standard Slotted Screwdriver
• 1/4"
Standard Slotted Screwdriver
• Wire Stripper
Type of Cable
The CS120 connects to the Niles Infrared main sys-
tems unit or IRH61 0 sensor expansion hub with an
individual home run of CAT-5 cable. When running
wires inside walls, most states and municipalities
in the U.S. specify that you must use a special type
of wire. Usually, the requirement is that the wire
has a specific "CL" fire rating, such as "CL-2" or
"CL-3". Consult your Niles dealer, building contrac-
tor, or local building and inspection department if
unsure about which type of wire is best for your
application.
CS120 Mounting Location
The CS120 is designed to be ceiling mounted in
a direct line of sight location within the operating
range of the remote control.
Receiving Range and Pickup Angle
The receiving range of the CS120 will vary accord-
ing to the IR output strength of the remote control
being used. Remote strength varies among brands
depending on the number and size of batteries
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used, and how many IR emitters the remote has.
For example, remotes that operate on two small
AAA batteries and have only one IR emitter are
generally not as strong as remotes that use the
larger AA size batteries and have two emitters.
Tests with various manufacturers' remote controls
have shown that the operating range can vary from
a minimum of 20' to a maximum of about 35'.
Infrared signals travel essentially line-of-sight. They
will not pass through or around solid objects. Do not
rely on an IR signal being able to "bounce" off a wall
or object to the CS120. The IR pickup angle of the
CS120 is 30° off-axis (horizontal and vertical) at 25'.
Avoiding Interference
CS120 is designed to work in most applications
including with LCD and plasma displays and in
areas where CFL lighting and indirect sunlight are
present. You should avoid locating the CS120 near
potential sources of electrical or optical noise, such
as light dimmers or low-voltage lights.
Avoiding Optical Feedback
If installing the CS120 in the same room as an IR
flasher, it is possible for the flasher's IR output to
be picked-up by the CS120. This effect, known
as an optical feedback loop, can cause erratic
operation. Optical feedback is similar to acoustical
feedback: the howling or whistling sound heard in
a P.A. system when the microphone is too close to
the speaker.
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