Installation of Door Entry Systems
The
is designed to be wall-mounted in a convenient indoor location.
The
, containing the speech unit, is available with either a surface or flush-mounting back
box. Normally this would be mounted on an outside wall near the front door, and if possible in a sheltered
location.
The
is designed for use on an inward opening door fitted with a surface
night-latch type lock. This should be installed with a small amount of play on the door as operation will be
impaired if too tight.
This is used in conjunction with a time-clock to allow tradesmen access
during restricted hours.
For optimum speech clarity, it is strongly recommended that this system is installed
using twisted-pair telephone cable (eg type CW1308). Use one of the pairs for the R & O connections
between the speech unit and the telephone.
Connect all items by following the diagram overleaf. It is strongly recommended that a single
telephone be connected at a time and fully tested before proceeding to the next.
The speech unit has two controls at the rear for adjustment of speech levels:
Volume A:
Speech level at the Entrance Panel
Volume B:
Speech level at the Telephone
If feedback is experienced (a howl or whistle) turn both controls to 'off' and then slowly adjust each up in turn
until a satisfactory level of speech is attained.
No speech/ insufficient speech: Initially establish correct operation of the Speech Unit by
disconnecting all telephones and re-connecting a single telephone with a short length of cable (R O T only);
Reconnect the telephones one at a time until the fault re-appears. Note: speech will be impaired if one or
more telephones are left off the hook.
Door Entry Telephone
Entrance panel
Model 203 Electric Lock Release
Tradesman button (optional):
Cable requirements:
Installation:
Speech adjustment:
Troubleshooting:
Important Safety Information
The
must be placed in a protected indoor environment such as an
electrical cupboard, close to a 240V AC electrical supply and located no further than 50
metres from the entrance panel. 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. A two-
pole switch ( as provided by a Consumer Unit or Switch-Fuse) must be included to isolate
both Live and Neutral during Installation or Maintenance . The transformer is protected by
fuses; always replace these with the correct type and rating.
Use only mains cable to BS6004 or equivalent, within the following specified limits:
Power Supply Unit
Conductor Diameter:
Cable Diameter:
Min. 1.0mm (0.8mm )
2
Min. 4.0mm
Max. 2.25mm (4mm )
2
Max. 8.0mm
