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Bell
System
(Telephones) Ltd
BELL-DDA
Telephone Models:
801 801S 801PS
500D 500PD
Door Panel
2
DDA
Interface
PCB
C
H
R
O
T
-
+
61
Speech
Unit
*
A model PS4 Power Supply must be used above 6 way
or on systems with more than 1 phone per flat / button.
Wiring for BELL-DDA Systems
I
3
I
2
I
1
B
Z
T
O
R
H
C
+
LOCK
-
Trades
Button
(optional)
To Additional Telephones
These 2 Cores
2
1.0mm CSA
Minimum
203, 204
Lock Release
Flats
Z
T
S econd
O
R
I
Z
T
O
R
I
Electrical Cupboard
340/PS4
Power Supply
-
13:44
56
+
CO
NO
NC
TS2000-BST
Time Clock
www.bellsystem.co.uk
PD-085 Issue 4
Ph one
Firs t
Ph one
*
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Related Manuals for Bell System 801
Summary of Contents for Bell System 801
- Page 1 Bell Wiring for BELL-DDA Systems System (Telephones) Ltd To Additional Telephones BELL-DDA Flats Telephone Models: 801 801S 801PS 500D 500PD S econd Ph one Door Panel Firs t Ph one Electrical Cupboard Interface These 2 Cores 1.0mm CSA Minimum LOCK...
-
Page 2: Important Safety Information
Installation of Door Entry Systems Important Safety Information 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.