The conditions which sometimes combine to
create a feedback loop are:
each wire into the appropriate hole on the main
system units’ screwless connector (Figure 2),
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
the socket. Don’t force the scalloped side of the
connector plug into the smooth side of the socket.
lIMIted Warranty
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
NILES DEALER.
InstallatIon
sPeCIFICatIons
troublesHootInG
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.
IR System
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. Both a sensor and a flasher are located within
Compatible with virtually all brands of remotes
using carrier frequencies between 25kHz and 90kHz
the same room.
I N S T A L L A T I O N
&
O P E R A T I O N G U I D E
2. There is some low-level noise or interference
on your system.
IR Receiving Range
Varies depending on remote strength;
typically 20' to 35' (6.10 meters to 10.68 meters)
IR Receiving Angle
You can eliminate optical feedback by replacing
any IRB1 “flooding flasher” with an MF1 or MF2
MicroFlasher® and covering all flashers with the
supplied IR blocking covers.
6. Secure the MS120 by tightening the hex nut.
DO NOT OVER-TIGHTEN.
1. Determine a mounting location for the MS120.
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
supplied hardware.
1. Test the remote control(s) by operating the
A/V equipment directly. Replace the batteries
if needed.
Tools Required
TO ObTAIN WARRANTy SERvICE, TAKE ThE UNIT TO ThE NEAREST
AUThORIZED NILES DEALER, WhO WILL TEST ThE PRODUCT AND IF
NECESSARy, FORWARD IT TO NILES FOR SERvICE. IF ThERE ARE NO
AUThORIZED NILES DEALERS IN yOUR AREA, yOU MUST WRITE TO NILES
AND INCLUDE yOUR NAME, MODEL AND SERIAL NUMbER OF yOUR UNIT,
ALONg WITh A bRIEF DESCRIPTION OF ThE PRObLEM. A FACTORy RETURN
AUThORIZATION NUMbER WILL bE SENT TO yOU. DO NOT RETURN ANy
UNIT WIThOUT FIRST RECEIvINg WRITTEN AUThORIZATION AND ShIPPINg
INSTRUCTIONS FROM NILES.
30° off-axis (horizontal and vertical) at 25'
(7.62 meters)
• 1/8” Standard Slotted Screwdriver
• Adjustable wrench or pliers
• Wire Stripper
EMI (Electromagnetic Interference)
2. Double check the cable connections on the
MS120 and on the main system unit. Look for
open, shorted or reversed wires.
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
methods:
Mounting
Thru-hole, fits into a 1/2" (1.27 cm) diameter
hole; requires a minimum of 2-7/8" (7.31 cm)
mounting depth
NOTE: Do not install the MS120 next to a light
dimmer
2. Drill a 1/2” hole where the MS120 will be
mounted.
3. Test for interference from the following
sources:
IFThEAbOvECONDITIONSAREMET,ThEPURChASER’SSOLEREMEDyShALL
bE TO RETURN ThE PRODUCT TO NILES, IN WhICh CASE NILES WILL REPAIR
OR REPLACE, AT ITS SOLE OPTION, ThE DEFECTIvE PRODUCT WIThOUT
ChARgE FOR PARTS OR LAbOR. NILES WILL RETURN A UNIT REPAIRED OR
REPLACED UNDER WARRANTy by ShIPPINg SAME by ITS USUAL ShIPPINg
METhOD FROM ThE FACTORy (ONLy) AT ITS ExPENSE WIThIN ThE UNITED
STATES OF AMERICA. THERE ARE NO OTHER WARRANTIES, INCLUDING
WITHOUT LIMITATION, EITHER EXPRESS OR IMPLIED WARRANTIES OF
3. Run the MS120’s IR cable. Label the cable for
future reference. The MS120 is supplied with
10’ of pre-stripped IR cable. The IR cable may
be shortened or lengthened as needed. If you
want to make the MS120’s cable shorter, use a
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
Installation Considerations—Type of Cable). You
may splice the MS120 cable to another cable by
soldering or crimping the connections.
• Neon, Compact Florescent Lighting (CFL), or
halogen lights in the room
Wiring Requirements
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.
Individual home-run of CAT-5 cable
Unit Dimensions
oPeratIon
• Light dimmers, beginning with those closest
to the MS120
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
equipment.
Front Bezel:
3/4" (1.91 cm) diameter x 1/4" (.64 cm) high
MERCHANTABILITY OR FITNESS FOR
RESPECT TO THE PRODUCT.
A
PARTICULAR PURPOSE, WITH
2. Connect the Sensor’s GND terminal to true
earth ground (if this isn’t feasible use the
main system unit’s GND terminal).
Observe the main system unit IR confirmation
LED while performing all the tests. It is possible
to have interference from more than one source.
REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE
EXCLUSIVE REMEDY OF THE CONSUMER/PURCHASER. NILES SHALL NOT
BE RESPONSIBLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES
EXCEPT TO THE EXTENT PROVIDED (OR PROHIBITED) BY APPLICABLE LAW.
SOME STATES DO NOT ALLOW ThE ExCLUSION OR LIMITATION OF
INCIDENTAL OR CONSEqUENTIAL DAMAgES, SO ThE AbOvE LIMITATION MAy
NOT APPLy TO yOU. ThIS WARRANTy gIvES yOU SPECIFIC LEgAL RIghTS,
AND yOU MAy ALSO hAvE OThER RIghTS WhICh vARy FROM STATE
TO STATE.
Overall Unit:
1/2" (1.27 cm) diameter x 2-7/8" (7.31 cm) long
Bl e n d i n g Hi g H Fi d e l i t y An d Ar c H i t e c t u r e ®
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
Eliminating Optical Feedback
Contents
N i l e s A u d i o C o r p o r a t i o n
1 2 3 3 1 S . W . 1 3 0 S t r e e t M i a m i , F l o r i d a 3 3 1 8 6
1 - 3 0 5 - 2 3 8 - 4 3 7 3
In some installations, two conditions combine to
create an optical feedback loop. Symptoms can
include: poor range, intermittent operation or no
operation.
MS120 Sensor x 1
Washer x 1
4. Connect the MS120 cable to the main system
unit. Strip 1/4” of insulation from the end of
each wire. Tightly twist the end of each wire
until there are no frayed ends. Insert the end of
®
FOR ThE NAME OF yOUR NEAREST AUThORIZED NILES DEALER
CONTACT: NILES AUDIO CORPORATION, P.O. bOx 160818, MIAMI,
FLORIDA 33116-0818.
FluSH-MouNt IR MICRoSeNSoR
1 - 8 0 0 - B u y - H i f i
–
w w w . n i l e s a u d i o . c o m
Hex Nut x 1
(M-F 8:00 AM - 7:00PM ET).
Black and White Bezel
Please fill in your product information and retain for your records.
©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
You can also email Niles Technical Support at
MS120
Model__________________Purchase Date _________________
Serial No.____________________________________________
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