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Niles MSU250 - page 1
MSU250 INFRARED MAIN SYSTEM UNIT MSU250 B LENDING H IGH F IDELITY AND A RCHITECTURE ® INST ALLA TION & OPERA TION GUIDE DS00328ACN_MSU250.qxp 2/27/04 10:10 AM Page 24 ...
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Niles MSU250 - page 2
T ABLE OF CONTENTS Introduction 1 Features and Benefits 2 MSU250 Parts Guide 4 Installation Considerations 5 Installation 8 T esting the IR Extender System 1 1 Power Status 13 T r ouble- Shooting 16 Specifications 19 Contents 19 Addendum 20 I NF RARED MAIN S YS TEM UNIT MSU250 Infrared Main System Unit Introduction An infrared (IR) extender system ...
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Niles MSU250 - page 3
2 I NFRARED MAIN S YS TEM UNIT Features and Benefits The MSU250 offers a number of improvements over other IR Extender Main System Units: • Universal system—compatible with virtually all brands of A/V equipment and remote controls. • Accommodates two IR sensors or keypads. • Provides five flasher outputs via convenient 3.5mm jacks. • Syst ...
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Niles MSU250 - page 4
3 3-30V AC/DC STA TUS IN I NFRARED MAIN S YS TEM UNIT Niles IR Flasher MSU250 WS100 IR Sensor Power , IR data, status signal and gr ound via category 5 wire Stereo Receiver 12VDC power supply (supplied with the MSU250 Main System Unit) plugged into an unswitched AC outlet powers the system 1 2VDC power supply (Not Supplied) plugged into the switche ...
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Niles MSU250 - page 5
3-30V AC/DC ST ATUS IN 4 I NFRARED MAIN S YS TEM UNIT MSU250 Parts Guide 1. 12VDC Jack – Provides 12 volt DC power to MSU via a regulated power supply . 2. IR Flasher Outputs – 3.5mm jacks provide output for either single or dual (MF1, MF1VF , MF2, MF2VF) low-level flashers. 3 . 3-30V AC/DC Status – 3.5mm jack provides system status to sensor ...
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Niles MSU250 - page 6
Installation Considerations Placement of the MSU250 Place the MSU250 conveniently close to the equipment it will be controlling. Generally , the unit is placed in a concealed location because its controls and indicators are only used dur- ing installation. Placement possibilities include: 1 ) T able-top (on the floor or shelf behind the equipment) ...
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Niles MSU250 - page 7
W iring From every IR Sensor location you must “home-run” a category 5 cable back to the MSU250. Home run means that an individual cable is connected between each IR Sensor and the MSU250 (Figure 4). 6 I NFRARED MAIN S YS TEM UNIT “TECH TIP” W ire size is expressed by it’ s A WG (American W ire Gauge) num- ber . The lower the A WG number ...
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Niles MSU250 - page 8
IntelliPad W iring When you are placing both a IntelliPad and a sensor (or two keypads) in one room you may “daisy-chain” using a single cable. A cable is run between the keypad and the sensor and a single cable is run from either the sensor back to the MSU250. T o prevent data feedback an IN4003 Blocking Diode is inserted on the data (IR) line ...
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Niles MSU250 - page 9
3-30V AC/DC STA TUS IN Installation Before you begin, make sure that the sensor/keypad cables, the flasher cables and the 12VDC power supply cable will all reach the proposed location of the MSU250. Mark the cables with labels describing where the cable originates (rather than which terminal on the MSU250 it should connect). For proper installation ...
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Niles MSU250 - page 10
9 I NFRARED MAIN S YS TEM UNIT STEP DESCRIPTION 1. Connect and test the po we r supply . If it tests OK, un pl u g the connector from the power socket and proceed. A) Plug the supplied 12VDC power supply into an unswitched 120 volt AC outlet, 50-60 HZ . B) Plug the connector into the socket marked “Power” on the MSU250. C) If the Power LED does ...
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Niles MSU250 - page 11
10 I NFRARED MAIN S YS TEM UNIT STEP DESCRIPTION BE SURE TO OBSERVE PROPER POLARITY WHEN EXTENDING THE FLASHER WIRE. The wire lead marked with a gray stripe is positive ( + ) ; the unmarked lead is negative (- ) . 3. T est for shorts and interference. A) Reconnect the power supply . If the Power LED lights and the IR T est LED stays off, unplug the ...
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Niles MSU250 - page 12
11 I NFRARED MAIN S YS TEM UNIT T esting the IR Extender System T est your IR Extender system by following the three principal guidelines: 1. All components can be operated. T est all of your remote controls for all of your equipment. 2. Operation is consistent. A good test is to repeatedly step from Pause to Play with your VCR, CD, DVD, or T ape p ...
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Niles MSU250 - page 13
12 I NFRARED MAIN S YS TEM UNIT 12 V olt T rigger Output The Niles MSU250 provides a 12VDC output that can be trig- gered one of two ways: 1. The presence of status voltage on the 12VDC status input jack. 2. Discrete infrared on and off commands. The discrete on and off commands are available for download at: www .nilesaudio.com/techsupport. This o ...
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Niles MSU250 - page 14
13 I NFRARED MAIN S YS TEM UNIT Power Status — Introduction T o properly wire an IntelliPad to the MSU250, refer to Figure 5. By providing 3-30 volt AC/DC to the status input jack of your MSU250 you can send a status signal to sensors or an IntelliPad without running any additional wiring. Built into the MSU250 is a Niles status signal generator ...
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Niles MSU250 - page 15
14 I NFRARED MAIN S YS TEM UNIT Extending the Cable If you must extend the cable from the wall adapter to the MSU250’ s status input jack be sure to maintain correct polari- ty . The tip of the plug should be positive (+) and the sleeve negative (-). Any 16 gauge 2-conductor cable can be used to extend the power status cable up to 200'. Chec ...
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Niles MSU250 - page 16
OUTPUT TO MSU POWER STA TUS +1 2V DC IRH61 0 I R E X PA N S I O N H U B IN PUT 1 IN PUT 4I N PUT 5I N PUT 6 IN PUT 2 IN PUT 3 1 2VDC Power supply (Not Supplied) plugged into a switched outlet Niles stock# FG00060A IRH610 Expansion Hub MSU250 Main System Unit Infrar ed Sensors Figure 9 Wiring diagram for expanding a system using the IRH610 Infrared ...
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Niles MSU250 - page 17
System Expansion System expansion is easily achieved (Figure 9) through the use of an IRH610 Infrared Sensor Expansion Hub. Please see your authorized Niles dealer or refer to the IRH610 manual for details. T roubleshooting Guidelines There are three basic problems which prevent proper opera- tion. In the order of probability the problems are: 1. B ...
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Niles MSU250 - page 18
17 I NFRARED MAIN S YS TEM UNIT 2. Optical or Electromagnetic Interference Direct sunlight, reflections, neon signs and other sources of infrared light or television sets, light dimming controls and other sources of electromagnetic fields can induce noise and interference into your IR extender system. Symptoms can include: flashback LED’ s contin ...
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Niles MSU250 - page 19
18 I NFRARED MAIN S YS TEM UNIT 3. Optical Feedback Loop If you have an IR sensor in the same room as a flasher , and you have some low-level noise or interference, an optical feedback loop can occur which will interfere with proper operation. Symptoms can include: poor range, intermittent operation or no operation. Solution: Y ou can eliminate opt ...
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Niles MSU250 - page 20
19 I NFRARED MAIN S YS TEM UNIT Specifications IR System Compatible with virtually all brands of remotes using carrier frequencies between 26 and 1 05kHz. W iring Requir ements Individual home-runs of category 5 cable from each sensor/keypad. Unit Dimensions 5-11/16” wide x 1-1/4” high x 2” deep. Power Requir ements 1 2 VD C power supply (inc ...
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Niles MSU250 - page 21
20 I NFRARED MAIN S YS TEM UNIT Addendum: Using the MSU250 with the IntelliControl ® automation system 3-30V AC/DC STA TUS IN 150 OHm Resistor Using the MSU250 with the IntelliControl Home Theater automation system When connecting an MSU flasher output to an IntelliControl “Home Theater” port, a 150-Ohm resistor must be placed between the data ...
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Niles MSU250 - page 22
21 I NFRARED MAIN S YS TEM UNIT Notes DS00328ACN_MSU250.qxp 2/27/04 10:10 AM Page 21 ...
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Niles MSU250 - page 23
22 I NFRARED MAIN S YS TEM UNIT Notes DS00328ACN_MSU250.qxp 2/27/04 10:10 AM Page 22 ...
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Niles MSU250 - page 24
Ni l es Audio Corpora tion www .nilesaudio.com 1 233 1 S.W . 1 30 Street Miami, Florida, 3 3 18 6 T el: (305) 238-4373 Fax: (305) 238-0 1 85 © 2004 Niles Audio Corporation. All rights reserved. Niles, the Niles logo, IntelliPad and Blending High Fidelity and Architecture are registered trademarks of Niles Audio Corporation. MicroFlasher is a trade ...
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