INSTALLATION INSTRUCTIONS
MODEL 780-95
“PLASMA FRIENDLY” J-BOX INFRARED RECEIVER
TABLE OF CONTENTS
Introduction...................................................................................................................................................................... 1
Features ...................................................................................................................................................................... 1
Specifications .............................................................................................................................................................. 2
Installation ....................................................................................................................................................................... 2
Placement ................................................................................................................................................................... 2
Mounting...................................................................................................................................................................... 2
Application wiring......................................................................................................................................................... 3
Advanced wiring configuration...................................................................................................................................... 3
Using the Status LED Indicator .................................................................................................................................... 4
INTRODUCTION
The 780-95 is designed to reject interference from Plasma Displays from entering the IR signal line. This IR Receiver mounts easily
into a single gang, electrical J-Box and is supplied with mounting screws and comes with a Decorator-style insert, allowing the installer
to use a Decorator-style wall cover plate. This provides an integrated look for control of A/V equipment behind closed doors or any IR
Repeater System that is in close proximity to a Plasma Display.
FEATURES
• J-Box Mounting with Decorator-style insert (available in white(included), ivory, almond, & black)
• 4-screw terminal block for interface to Xantech Connecting Blocks
• Works in normal 3-wire mode
• Improved Fluorescent Light rejection
• May be used in Direct Sunlight
• RF Grid included for EMI reduction
• Talk Back LED for IR reception and full system operation indication
• Status LED for system On/Off indication (requires 12VDC Source @10mA)
• 7 units may be powered by one 781RG power supply (regulated 12VDC 200mA supply)
Note: The 780-95 will not operate in 2-wire Phantom Power mode
Page 2 Model 780-95
780-95
IR RECEIVER
IR Receiver
Photo Diode
Green
STATUS
LED
Red
Talkback
LED
®
+IR OUT
GND
STATUS
+12V
Figure 1 – 780-95: Front & Rear View
SPECIFICATIONS
• Infrared modulation frequency bandwidth: 30 - 100 kHz
• Reception range: up to 50 feet (18M), depending on local conditions
• Reception angle: 45 degrees off axis at 50% range reduction
• Cable requirements: 3-conductor. Use 24-gauge up to 200' (61M), 22 gauge up to 600' (180M), 20-gauge up to 2000' (600M), 18gauge up to 5000' (1.5KM) -- unshielded OK.
• Maximum transmission length: One mile using 18-gauge wire (1.6KM)
• Maximum current output: 100 mA (pulse)
• Dimensions: 1-3/4” W x 4-1/8” H x 1-1/8” D
• Power requirements: 12 volts DC @ 20mA
INSTALLATION
This unit is meant to be installed into a standard J-Box mounting box and interfaced to Xantech Connecting Blocks, such as the CB12,
789-44, 791-44, etc.
CAUTION: The J-Box must NOT be shared with 120/240VAC circuits.
PLACEMENT
Placement of the IR Receiver does matter when used in
the presence of a Plasma Display. Ideally it should be
780-95 Top View
placed somewhere around the Display with the front of
the receiver flush with the front of (or set back from) the
Display. If the 780-95 needs to be placed in front of the
display (such as on an adjacent side wall perpendicular
to the display), make sure it is placed at a location at
least 45 degrees off axis from the corners of the unit –
45°
PLASMA DISPLAY
45°
see Figure 2. The presence of Direct Sunlight and
Fluorescent Lighting should not effect the reception of
this unit.
Note: Plasma interference can be reflected off of any
item it comes into contact with within approx. 3 feet from
the front of the display. Keeping this in mind, make sure
that the 780-95 is free of any obstruction that might
reflect back into the receiving eye.
Note: While this unit shows strong rejection to standard
50/60Hz ‘ballasted’ fluorescent lighting, it is still prone to
interference from CFL style Fluorescent lighting.
MOUNTING
Figure 2 780-95 Placement
1. Pre-wire a 3-conductor cable (refer to Specifications section for proper Wire Gauge) from the connecting block location to J-
box mounting location.
Note: If using the STATUS LED feature, use 4-conductor cable in the appropriate gauge (see Figure 5)
2. Connect proper wires to the +12VDC, GND, STATUS (if applicable), and IR OUT terminals on the rear of the 780-95 as shown
in Figure 3.
3. Secure the 780-95 into the J-Box using the supplied screws.
© 2003 Xantech Corporation
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