Niles MSU250 Installation & Operation Manual
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Niles MSU250 Installation & Operation Manual

Infrared main system unit
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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
MSU250
MSU250
INFRARED MAIN SYSTEM UNIT
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L E N D I N G
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I D E L I T Y
A N D
R C H I T E C T U R E

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Summary of Contents for Niles MSU250

  • Page 1 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 MSU250 MSU250 INFRARED MAIN SYSTEM UNIT ® L E N D I N G...

  • Page 2: Table Of Contents

    It may be used along with the Niles TS100, MS100, MS200, WS100, MVC100IR and CS100 IR sensors or the IntelliPad The model MSU250 is an IR Main System Unit. It is one of three elements that make up an infrared extender system: •...

  • Page 3: Features And Benefits

    N F R A R E D 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.
  • Page 4 MSU250 Power, IR data, status signal and ground via category 5 wire Figure 1 Connecting the WS100 to a Niles MSU250 Main System Unit broadcasting a status feedback signal. In a typical system, the MSU250 provides for the connection for two remote room...

  • Page 5: Msu250 Parts Guide

    N F R A R E D 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.

  • Page 6: Installation Considerations

    N F R A R E D Installation Considerations Placement of the MSU250 Place the MSU250 conveniently close to the equipment it will IMPORTANT be controlling. Generally, the unit is placed in a concealed Do not place the location because its controls and indicators are only used dur- MSU250 on top of ing installation.
  • Page 7 N F R A R E D Wiring 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).
  • Page 8 “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. To prevent data feedback an IN4003 Blocking Diode is inserted on the data (IR) line between the IntelliPad and the sensor.

  • Page 9: 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).
  • Page 10 AC outlet, 50-60 HZ . B) Plug the connector into the socket marked “Power” on the MSU250. C) If the Power LED does not light, test the unswitched 120 volt AC outlet, 50-60 HZ with another appliance. If the outlet tests OK, you have a defective power supply which must be replaced for you to continue.
  • Page 11 Section beginning on page 14. Route the connecting wire to the IR Main System Unit. Connect the 3.5mm plug into the jack labeled “Flasher Output” on the MSU250 (Figure 7). BE SURE TO OBSERVE PROPER POLARITY WHEN EXTENDING THE FLASHER WIRE.

  • Page 12: Testing The Ir Extender System

    N F R A R E D Testing the IR Extender System Test your IR Extender system by following the three principal guidelines: 1. All components can be operated. Test all of your remote controls for all of your equipment. 2.
  • Page 13 S Y S T E M U N I T 12 Volt Trigger 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.

  • Page 14: Power Status

    U N I T Power Status — Introduction To 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.
  • Page 15 It is possible to check the status power supply itself and any connections that were made to extend the cable by inserting the status plug into the Power jack on the MSU250. If the Power LED lights the status power supply and connections are ok.
  • Page 16 N F R A R E D MSU250 Main System Unit IRH610 Expansion Hub Figure 9 Wiring diagram for expanding a system using the IRH610 Infrared Expansion Hub. M A I N S Y S T E M INPUT 1...

  • Page 17: Trouble-Shooting

    N F R A R E D M A I N S Y S T E M U N I T 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.
  • Page 18 N F R A R E D 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 continuously flickering or on without any remote control use, poor range, intermittent operation or no operation.
  • Page 19 N F R A R E D M A I N S Y S T E M U N I T 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.

  • Page 20: Specifications

    5-11/16” wide x 1-1/4” high x 2” deep. Power Requirements 12 VDC power supply (included). M A I N S Y S T E M U N I T Contents MSU250 Screwless Connectors 2 In-line Power Supply 1 Self-Adhesive Rubber Feet...

  • Page 21: Addendum

    N F R A R E D Addendum: Using the MSU250 with the IntelliControl automation system 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 and the ground line of the IntelliControl IR sensor input (see figure above).
  • Page 22 N F R A R E D M A I N S Y S T E M U N I T Notes...
  • Page 23 N F R A R E D M A I N S Y S T E M U N I T Notes...
  • Page 24 Niles Audio Corporation www.nilesaudio.com ©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 trademark of Niles 12331 S.W. 130 Street Audio Corporation. Because we strive to improve our products. All other trademarks are the property of their Miami, Florida, 33186 respective owners.

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