Centurion POLOphone - System Overview and Operation; Expandability; Wiring System; Powering the System

Page 2 - Polophone Intercom
SYSTEM OVERVIEW & OPERATION
The Centurion Polophone is a very versatile intercom system designed for a multitude of applications ranging
from a basic 1 to 1 kit to larger installations with up to 5 components in the system. A component is either an
entry panel or a handset as detailed below.
Expandability
The Polophone system can be configured using combinations of up to 5 components as follows:
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Up to two entry panels
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Two groups of handsets with up to three handsets per group.
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The system can operate without an entry panel connected.
Each call button rings one of the two groups of handsets. Intercommunication is available between the two
groups of handsets.
Wiring
The system uses a two wire bus to link all the components, making the wiring of the system particularly easy.
Powering the system
The Polophone system operates off a DC supply and can therefore be powered from either a 14V DC mains
adaptor or directly from the battery supply of a 12V gate motor system.
The power source can be connected to any component in the system.
Other features
Using the same two wire bus, each handset can independently operate the door lock or gate motor linked to
each entry panel. The entry panel is provided with a potential free, normally open contact to operate either a
gate motor or, in series with a separate power supply, to activate a door lock.
An auxiliary, potential free, normally open pushbutton is also provided on each handset. This pushbutton does
not connect to the two wire bus and requires separate wiring to operate an auxiliary function on the gate motor
or at the entrance such as switching an external light etc.
A fourth button is provided on each handset to call the handsets in the other handset group.
A small window is provided on the face of the handset cradle to accommodate an indicator light (LED). This can
be wired to a gate motor status function etc. Similar to the auxiliary pushbutton, additional wiring is required.
Permanent backlighting of the entry panel call button(s) and identification label(s) are provided.
1 to 1
Entry
Panel
Handset
Entry
Panels
Handsets
3 to 2
Intercommunication
4 to 1
Entry
Panel
Handsets
Intercommunication
Fig 1 Excellent expandability using only two wires