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Modules & Connecting Blocks
791-44
INSTALLATION INSTRUCTIONS
791-44
AMPLIFIED CONNECTING BLOCK
The Model 791-44 is an Amplified Connecting Block that permits up to 10 single or 10 dual emitters (or any
combination thereof) to be driven directly at high or low power levels. Up to 100 emitter ports may be driven
using 790-00 passive connecting blocks 'daisy chained' from the HIGH IR OUT port. The 791-44 interfaces
all Xantech IR Receivers and Keypads to the emitters along with a power supply in an infrared repeater
system. It can also serve to provide emitter expansion at the output port of other Xantech devices, such
as the 590 Programmable Controller, the 710 Fone Link™ and the 796 Zone Expander. A floating terminal
is provided for "STATUS" line connections.
+12 VDC
GND
E M I T T E R S
12 VDC
HIGH
IR
OUT
ST
A
TUS
IR IN
IR
RCVR
791- 44
AMPLIFIED
CONNECTING BLOCK
®
Fig. 1
Model 791-44
Talk-back LED
SPECIFICATIONS
• 4-screw plug-in terminal for +12VDC, GND, STATUS, & IR IN.
• Quick connect "IR RCVR" input (3.5mm mini stereo jack).
• Red talk-back LED flashes with IR input signal.
• Ten EMITTER output ports, parallel driven (3.5mm mini mono jacks).
• HIGH IR OUT port for emitter expansion (3.5mm mini mono jack). See Fig. 5.
• Use of included jumpers connect either a 100 or a 470-Ohm resistor in series with each emitter jack for
high or low power operation.
• 282/283/284/286 series of Emitters may be used in any combination.
• Power requirements: 12 volts DC. Uses 781RG or 782-00 Power Supplies (see item 3 below).
• 2.1 mm coaxial power jack.
• Dimensions: 6" W x 2-1/4" D x 15/16" H
INSTALLATION
Fig. 2, next page, illustrates a typical installation of a 791-44 in an IR repeater system. A variety of Xantech
IR Receivers and a keypad are shown. When configuring a system, please keep the following items in mind:
1. More IR receivers may be wired in parallel, in the same manner as shown, up to a maximum of twelve.
More than twelve is not recommended because IR noise picked up by the many IR receivers may
cause erratic operation and reduce remote control range.
NOTE: This restriction does not apply to Xantech Smart Pads. These may be added virtually without
limit, provided power supply requirements are taken into consideration. See item 3.
