
INSTALLATION INSTRUCTIONS
CB20
CONNECTING BLOCK
The Model CB20 provides a low cost means of connecting Xantech
"Quick Connect" IR Receivers to two single or two dual emitters and a
power supply in an infrared repeater system.
FEATURES AND SPECIFICATIONS
• Inputs: 1 - IR Receiver "IR" 3.5mm stereo mini jack. Accepts any
Xantech IR Receiver equipped with a 3.5mm stereo mini plug, such
as the 291-00 and 490-30.
• Outputs: 2 - Emitter "OUT" ports (3.5mm mono mini jacks) parallel
driven.
• Contains a 470-Ohm resistor in series with each OUT jack.
• Model 282, 283, 284 & 286 Xantech Mini Emitters may be used.
• Power requirements: 12 volts DC. Uses 781RG Power Supply.
• 2.1mm coaxial power jack.
• Dimensions: 2-1/8" x 1-1/4" x 3/4"
CAUTION: Plug only Xantech IR Receivers equipped with a stereo mini plug into the IR jack.
emitters or other devices into this jack; to do so will destroy emitters and damage power supplies!
IR
PWR
CB20 Connecting Block
Do not plug
Modules & Connecting Blocks
OUT
OUT
INSTALLATION
The following diagram illustrates
a typical installation using the
CB20 in an IR repeater system.
In this case a 490-30 Micro Link™
IR Receiver is used to control
four pieces of A/V equipment in a
cabinet behind closed doors.
When connecting a system, follow this diagram carefully:
The OUT ports are driven in parallel with a 470 Ohm resistor
connected in series with each
port. The resistors ensure proper
current sharing to each emitter.
490-30
Series
IR Receivers
Hand Held
Remote
490-30
(mounted on or
near cabinet in an
inconspicuous
location).
Controlled
Equipment
(mounted
behind closed
cabinet doors)
To 120 V AC
(unswitched)
781RG
Power Supply
7-Foot 3-Conductor
Cable with Quick
Connect Mini Plug
CB20
Connecting Block
IR
PWR
Satellite Rec'r
286M Blink-IR™
VCR
286M Dual
Blink-IR™
Mouse Emitter
OUT
OUT
AV Receiver
286M Blink-IR™
CD Changer
286M Dual
Blink-IR™
Mouse Emitter
Because of this current sharing
feature,
you may connect any
combination of Xantech emitter
models in the 282, 283, 284 & 286 series (as well as the 286M shown in Fig.2) to drive the desired number
of devices (up to a maximum of 2 dual emitters).
NOTE: Be sure the 781RG Power Supply is plugged into an un-switched AC outlet. This maintains the
system in "stand-by" operation so that power-ON commands can be sent to the controlled equipment.
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