MS1 2 0
INSTALLATION & OPERATION GUIDE
Bl e n d i n g Hi g H Fidelity An d Ar c H i t e c t u r e
Niles Audio Corporation
12331 S.W. 130 Street Miami, Florida 33186
1-800-BUY- HIFI – www.nilesaudio.com
©2009 Niles Audio Corporation. All rights reserved. Niles, the Niles
logos, MicroFlasher, MicroSensor and Blending High Fidelity and Architecture are
registered trademarks of Niles Audio Corporation. All other trademarks are the
property of their respective owners. DS00671A
FLUSH-MOUNT IR MICROSENSOR
If you are installing the MS120 into an existing wall,
take time to consider any possible obstructions
which may be hidden inside the wall, such as wood
or metal studs; electrical, telephone or other types
of wiring; plumbing; AC or heating conduits; old
wall safes; etc.
Select a location where you will have access
to the rear of the MS120 after it is installed.
This will allow you to securely tighten the
MS120 to the mounting surface using the
future reference. The MS120 is supplied with
be shortened or lengthened as needed. If you
pair of wire cutters to cut the cable to the
desired length. The IR cable may be lengthened
by splicing it to a recommended IR cable (See
may splice the MS120 cable to another cable by
soldering or crimping the connections.
each wire. Tightly twist the end of each wire
until there are no frayed ends. Insert the end of
each wire into the appropriate hole on the main
and snap the locking tab down. To help you, the
connector plug is keyed. Insert the smooth side
of the connector plug into the smooth side of
connector plug into the smooth side of the socket.
• 1/8” Standard Slotted Screwdriver
• Adjustable wrench or pliers
• Wire Stripper
Operation of the MS120 is straightforward. Simply
aim your hand-held remote at the MS120. Your
IR command is instantly repeated to your A/V
This manual contains instructions for the MS120
only. For specific information on the adjustment
and operation of your Niles infrared extender
system, please refer to the instruction manual
included with your Niles IR main system unit
(MSU140, MSU250, MSU480 MSU440Z).
1. Test the remote control(s) by operating the
MS120 and on the main system unit. Look for
open, shorted or reversed wires.
halogen lights in the room
to the MS120
Observe the main system unit IR confirmation
LED while performing all the tests. It is possible
to have interference from more than one source.
Eliminating Optical Feedback
In some installations, two conditions combine to
create an optical feedback loop. Symptoms can
include: poor range, intermittent operation or no
The conditions which sometimes combine to
create a feedback loop are:
1. Both a sensor and a flasher are located within
the same room.
2. There is some low-level noise or interference
on your system.
You can eliminate optical feedback by replacing
any IRB1 “flooding flasher” with an MF1 or MF2
and covering all flashers with the
supplied IR blocking covers.
EMI (Electromagnetic Interference)
Identify the source of the interference. The most
common sources of electromagnetic interference
are listed in the Installation Considerations
section. To eliminate EMI try the following
1. Move the sensor or the sensor cable away
from the EMI source or move the source of
the EMI away from the sensor or the cable.
There are many methods for reducing
interference. Which solution is best for you
depends on your situation. If you require further
assistance call Niles Technical Support at
305-238-4373 or 1-800-289-4434
(M-F 8:00 AM - 7:00PM ET).
You can also email Niles Technical Support at
Compatible with virtually all brands of remotes
using carrier frequencies between 25kHz and 90kHz
IR Receiving Range
Varies depending on remote strength;
typically 20' to 35' (6.10 meters to 10.68 meters)
IR Receiving Angle
30° off-axis (horizontal and vertical) at 25'
Thru-hole, fits into a 1/2" (1.27 cm) diameter
hole; requires a minimum of 2-7/8" (7.31 cm)
Individual home-run of CAT-5 cable
3/4" (1.91 cm) diameter x 1/4" (.64 cm) high
1/2" (1.27 cm) diameter x 2-7/8" (7.31 cm) long
MS120 Sensor x 1
Washer x 1
Hex Nut x 1
Black and White Bezel
NILES AUDIO CORPORATION (“NILES”) WARRANTS ITS ACTIVE PRODUCTS
(THOSE NOT REQUIRING AC OR BATTERY POWER) TO THE ORIGINAL
PURCHASER TO BE FREE OF MANUFACTURING DEFECTS IN MATERIAL AND
WORKMANSHIP FOR A PERIOD OF TWO YEARS FROM DATE OF PURCHASE.
THIS WARRANTY IS SUBJECT TO THE FOLLOWING ADDITIONAL CONDITIONS
AND LIMITATIONS. THE WARRANTY IS VOID AND INAPPLICABLE IF
NILES DEEMS THAT THE PRODUCT HAS BEEN USED OR HANDLED OTHER
THAN IN ACCORDANCE WITH THE INSTRUCTIONS PROVIDED BY THE
MANUFACTURER, INCLUDING BUT NOT LIMITED TO DAMAGE CAUSED BY
ACCIDENT, MISHANDLING, IMPROPER INSTALLATION, ABUSE, NEGLIGENCE,
OR NORMAL WEAR AND TEAR, OR ANY DEFECT CAUSED BY REPAIR
TO THE PRODUCT BY ANYONE OTHER THAN NILES OR AN AUTHORIZED
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AUTHORIZED NILES DEALER, WHO WILL TEST THE PRODUCT AND IF
NECESSARY, FORWARD IT TO NILES FOR SERVICE. IF THERE ARE NO
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AND INCLUDE YOUR NAME, MODEL AND SERIAL NUMBER OF YOUR UNIT,
ALONG WITH A BRIEF DESCRIPTION OF THE PROBLEM. A FACTORY RETURN
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INSTRUCTIONS FROM NILES.
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REPLACED UNDER WARRANTY BY SHIPPING SAME BY ITS USUAL SHIPPING
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WITHOUT LIMITATION, EITHER EXPRESS OR IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WITH
RESPECT TO THE PRODUCT.
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INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION MAY
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AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE
FOR THE NAME OF YOUR NEAREST AUTHORIZED NILES DEALER
CONTACT: NILES AUDIO CORPORATION, P.O. BOX 160818, MIAMI,
Please fill in your product information and retain for your records.
Model__________________Purchase Date _________________