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BF Apartment Station Digital Entry System

PD–166 Issue 1 Installation and Operating Manual Page 40 of 48

Diagram I – Apartment Station Local Power Wiring

Where more than one extension video unit is required to provide "auto display" then

additional power supplies will be required

Note. For each cable run :-

 Only one unit must be Master (Recommend the first unit)

 Extension video units must be "daisy chain" wired to preserve video quality

 The last (or only) video unit on the cable requires the Video Terminator "ON" all other

video units must have the Video Terminator "OFF"

Video Bell Bell28V AudioData Video28V12V AudioData

Apartment Station

Cat5

From Controller

To More

Extensions

PSU

340C

12V

The 28V– connection must

be made between all

units and the controller.

For maximum

cable distance

see text

Brn

W/Brn

Org

W/Org

Grn

W/Grn

Blu

W/Blu

Brn

W/Brn

Org

W/Org

Grn

W/Grn

W/Blu

Apartment Station

The 28V+ connection

is only connected to

the local power supply.

–

+2 21 1B BA A

– –– –– –

+ ++ ++ +

PSU

340C

12V

1 Cat5

Master Extension Extension Extension

PSU

340C

12V

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 46 47 48

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