I N S TA L L AT I O N G U I D E INFRARED MAIN SYSTEM UNIT MSU250
CONGRATULATIONS! Thank you for choosing MSU-250 infrared (IR) extender system from Niles. With proper installation and operation, you should enjoy years of trouble-free use. Niles manufactures the industry’s most complete line of custom installation components and accessories for audio/video systems. To see the complete Niles product assortment, visit us on the Internet at: www.nilesaudio.
INTRODUCTION The MSU-250 an infrared (IR) extender system enables you to control your IR remote controlled A/V equipment from a remote location. This enables you to place your A/V components out of sight (behind cabinet doors, in the rear of a room, or in a different room) and still conveniently operate your equipment. Installed at the equipment location, the MSU250 receives the IR commands transmitted from your existing hand-held remotes in that room.
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 • System feedback LED confirms operation • 12VDC Output—This is useful for triggering external devices and system automation • 3-30V AC/DC status input.
12VDC power supply (supplied with the MSU250 Main System Unit) plugged into an unswitched AC outlet powers the system Niles IR Flasher Stereo Receiver 12VDC power supply (Not Supplied) plugged into the switched outlet Niles stock# FG00665 Figure 1 Connecting the WS110 to a Niles MSU250 Main System Unit broadcasting a status feedback signal.
FEATURES AND BENEFITS MSU250 PARTS GUIDE 2 3 4 1 7 6 5 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 sensors/ keypads via a 12V power supply attached to a switched outlet on the system receiver or a 12V trigger output 4.
FEATURES AND BENEFITS 5. Status/IR Confirmation LED – This LED performs two functions: (1) it provides a visible indication of system status via a green LED and (2) confirms the reception of IR data via a blinking blue LED 6. Flasher Hi/Lo switch – Setting these switches to the appropriate position allows you to connect either a high output flooding flasher (IRB1) or low output microflashers (MF1, MF1VF, MF2, MF2VF) 7.
INSTALLATION CONSIDERATIONS (CONTINUED) WIRING From every IR Sensor location you must “home-run” a CAT-5 cable back to the MSU250. Home run means that an individual cable is connected between each IR Sensor and the MSU250 (Figure 4).
INSTALLATION CONSIDERATIONS (CONTINUED) INTELLIPAD WIRING When you are placing both a IntelliPad and a sensor (or two keypads) in one room you may “daisychain” 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. The cathode, or blocking side of the diode, faces the IntelliPad. (Figure 5).
TINSTALLATION TOOLS REQUIRED • 1/8” (0.3cm) Standard Slotted Screwdriver • Wire Stripper 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, follow the steps outlined below in the correct order.
TINSTALLATION (CONTINUED) 1. Connect and test the power supply. If it tests OK, unplug 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 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 2.
INSTALLATION (CONTINUED) 3. Test for shorts and interference. A) Reconnect the power supply. If the power LED lights and the IR test LED stays off, unplug the connector from the power socket and proceed to Step 4. The following LED conditions show a fault: • If power LED is off there is a short between +12V and GND • If IR test LED is on or flickers blue there is a short between DATA and GND or interference is present Before you proceed to Step 4 consult the Troubleshooting Section beginning on page 14.
OPERATIONTESTING THE IR EXTENDER SYSTEM 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. Operation is consistent. A good test is to repeatedly step from pause to play with your VCR, CD, DVD, or Tape player remote control. Operation should be identical to standing in front of the component with the remote control pointed directly at the sensor window 3.
OPERATION Example include: • Dropping a motorized screen • Activating a television lift • Turning on a voltage controlled switching device (e.g.: Niles AC-3 voltage controlled switched outlet) INSTALLATION Simply plug a cable with a 3.5mm plug (tip=positive, sleeve=ground) into the jack labeled “12VDC/200mA OUTPUT”. Connect the other end of the cable to the device that will be triggered or a activated (Figure 8).“12VDC/200mA OUTPUT”.
OPERATION (CONTINUED) connected to one of your sensor wires will display the power status of your system. POWER STATUS — INSTALLATION CONSIDERATIONS PROPER POWER SUPPLY If status is being supplied from a switched outlet you must connect a Niles 12VDC wall adapter (Niles FG00665) into the switched AC power outlet of the preamp/receiver in your system. Any 12VDC power supply with a minimum of 100mA current capacity can be substituted.
OPERATION (CONTINUED) MSU250 Main System Unit 12VDC Power supply (Not Supplied) plugged into a switched outlet Niles stock# FG00060A IRH610 Expansion Hub Infrared Sensors Figure 9 Wiring diagram for expanding a system using the IRH610 Infrared Expansion Hub.
TROUBLESHOOTING TROUBLESHOOTING GUIDELINES There are three basic problems which prevent proper operation. In the order of probability the problems are: 1. Bad Connections or Wiring If the connections or wiring are wrong, loose, shorted or open the system will not operate properly. The symptoms could include: Power LED flickers or is off, IR test LED is continuously flickering or on without any remote control use, intermittent operation or no operation. Systematically troubleshoot the wiring by: 1.
TROUBLESHOOTING (CONTINUED) 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 2. Connect the sensor’s GND terminal to true earth ground (if this isn’t feasible use the main system unit’s GND terminal) 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.
SPECIFICATIONS IR System Compatible with virtually all brands of remotes using carrier frequencies between 26 and 105kHz. Wiring Requirements Individual home-runs of CAT-5 cable from each sensor/keypad. Unit Dimensions 5-11/16” wide x 1-1/4” high x 2” deep (173.3cm wide x 38cm high x 61cm deep). Power Requirements 12 VDC power supply (included).
Addendum: Using the MSU250 with the IntelliControl® automation system 1550 HM 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 and the ground line of the IntelliControl IR sensor input (see figure above). No resistor is needed if the MSU is being connected to the ”2nd Zone” port of the IntelliControl.
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LIMITED WARRANTY NILES AUDIO CORPORATION (“NILES”) WARRANTS ITS ACTIVE PRODUCTS 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.
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