Xantech 795-20 Installation Instructions

1

Modules & Connecting Blocks

INSTALLATION INSTRUCTIONS

795-20

FOUR ZONE AMPLIFIED CONNECTING BLOCK

Fig. 1 

  Model 795-20 Four Zone Amplified Connecting Block

COMMON EMITTERS

ZONE EMITTERS

A

B

A

B

A

B

A

B

+12V

ZONE 1 ZONE 2 ZONE 3

ZONE 4

ZONE IR INPUTS

ZONE 4

ZONE 3

ZONE 2

ZONE 1

+12 IN G +12 IN G +12 IN G +12 IN G

POWER

10 9 8 7 6 5 4 3 2 1

795-20 

FOUR ZONE AMPLIFIED CONNECTING BLOCK

The Model 795-20 is a Four Zone Amplified Connecting Block that allows control of elaborate multi-zone

audio/video systems.  The zone input terminals permit the connection of any Xantech IR Receiver, Keypad

or controller device.  Each zone output can control 2 or more pieces of equipment per zone, independent

of the other zones, via single or dual emitters or be direct wired to the IR input of Xantech Preamps, etc.

The 10 amplified common output ports can drive 10 single or 10 dual emitters or the IR input of Xantech

Controllers, etc., for control of common source equipment from any zone.  Expansion beyond 4 zones can

be accomplished by adding the 796-20 Six Zone Expander, for a total of 9 zones.  The 795-20 utilizes active

isolation devices for elimination of internal zone-to-zone crosstalk as well as high speed amplification to the

common output ports for operation with a wide range of IR controlled products.

SPECIFICATIONS

• Zone Inputs:  Four 3-screw terminal connectors to interface with all Xantech 3-lead IR receivers and/or

keypads.

• Outputs:  8  Zone emitter ports and 10 common emitter ports (3.5mm mini mono phone jacks).

• Green LED test indicators are connected in series with the zone outputs and in series with each common

emitter port.  They will only light when the connected emitter or device is conducting current.

• Zone output ports A and B and the Common ports are parallel driven and have a 470-Ohm resistor in series

with each port for lower power operation.  This prevents overload of IR sensors on A/V componets and

also allows the use of models 282, 283, 284 & 286 series Mini Emitters, Xantech Controllers, Preamps,

etc. in any combination.

• Power requirements: 12 volts DC. Use 781RG or 782-00 Power Supplies.

• 2.1 mm coaxial power jack.

• Dimensions: 13-3/8" W  x 1-7/8" D x 1" H

INSTALLATION

Fig. 2

, illustrates a typical installation using the 795-20 in a 4-zone system.  A variety of Xantech IR

Receivers and a keypad are shown in the various zones to illustrate the flexibility of the system.  When

configuring a system, please keep the following items in mind:

1. More IR Receivers may be wired in parallel at each zone input, if desired, up to a total of twelve.  More

than twelve is not recommended, even in a zoned system, 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 Smart Pad™ keypads, because they are not IR receivers.

Keypads may be added virtually without limit, provided power supply requirements are taken into

consideration.  See item 3.

2. Be sure to connect the +12V, IR OUTput and Gnd of each IR receiver and keypad to the respective

+12

, 

IN

 and 

G

 terminals of the zone inputs as shown.