INSTALLATION
Fig. 2 illustrates a typical installation of a ACB1 in an IR repeater system. A variety of Sonance
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.
2. Be sure to connect the +12V, Output and GND of each IR receiver and keypad to the
respective +12VDC, INPUT and GND of the connecting block as shown.
3. Power Supply Requirements. You may combine many Sonance IR receivers, controllers
and emitters in a system. Having sufficient power supply voltage and current available is
critical for proper operation. Be sure to take the following factors into consideration:
a. The maximum current for proper operation from a PS1 Power Supply is 120 mA (milliamps).
b. The maximum current from a PS2 Power Supply is 1000 mA.
c. Most IR receivers draw 2 mA without signal and 10 mA with signal (check specs. on
actual model).
d. Each emitter draws 5 mA in low power mode and 15 mA in high power mode.
e. When using combinations of these devices, add up their currents, then choose the
power supply according to the maximum current capabilities as noted above!
f. To avoid current "hogging", never connect regulated supplies, such as the PS1 and PS2,
in parallel!
The Model ACB1 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. The ACB1
interfaces all Sonance IR Receivers to the emitters along with a power supply in an infrared
repeater system. A floating terminal is provided for "STATUS" line connections.

INSTALLATION INSTRUCTIONS

ACB1

ONE ZONE AMPLIFIED CONNECTING BLOCK

Pg 1
SPECIFICATIONS
• Inputs: 1 - Screw type 4-terminal plug-in.
1 - IR Receiver "IR RCVR" 3.5mm mini
stereo jack.
• Outputs: 10 - Emitter ports (3.5mm mini
mono jacks) parallel driven. 1 - High Level
IR signal output port (3.5mm mini mono
jack).
• Use of included jumpers connect either a
100 or a 470-Ohm resistor in series with
each emitter output for high or low power
operation.
• E1, E2, VE1 & VE2 Mini Emitters may be used
in any combination.
• Power requirements: 12 volts DC. Uses PS1
or PS2 Power Supplies.
• 2.1 mm coaxial power jack.
• Dimensions: 5 3/8" W x 3" D x 7/8" H.
Fig. 1: ACB1 Amplified Connecting Block
Mounted in 3” SNAPTRACK®
(SNAPTRACK is a registered trademark of AUGAT)
33-1285 ACB1-instr 3-02 5/8/02 11:38 AM Page 1