User's Manual

Flats

ElectricalCupboard

DoorPanel

Phone

FailSecure

203,204

LockRelease

DDA-EXT-1/VR(S)

WiringforDDA ExtendedHaloSystems

Bell

System

340C

PowerSupply

PD-176Issue1

DDA

Interface

PCB

TOR

Speech

Unit

LOCK

TelephoneModels:

801801S801PS

500D500PD

(Telephones)Ltd

www.bellsystem.co.uk

These2

Connections

mustbe

doubledup

Call

Button

Call

Button

PAGE 1
Bell System Wiring for DDA Extended Halo Systems (Telephones) Ltd DDA-EXT-1/VR(S) Flats Telephone Models: 801 801S 801PS 500D 500PD Z T Door Panel Phone O R Call Button I Z T DDA Interface PCB O Electrical Cupboard R H C + - + - LOCK These 2 Connections must be doubled up 340C Power Supply C H R O T 61 Speech Unit Fail Secure + - 203, 204 Lock Release Call Button www.bellsystem.co.
PAGE 2
Installation of Door Entry Systems Important Safety Information The Power Supply Unit must be placed in a protected indoor environment such as an electrical cupboard, close to a 240V AC electrical supply and located close to the entrance. It must be wall-mounted onto plasterboard, wood or a similar non-conductive material. Connections to the 240V AC mains supply must be carried out by a qualified electrician or similar competent person, and made in accordance with accepted safety practices.