PAGE 15 of 24 AUDIO/VIDEO VANDAL RESISTANT TECHNICAL MANUAL
VER1.1
VIDEO SYSTEM BLOCK DIAGRAM
Note: Additional cores may be required for auxiliary items such as push to exit buttons,
fireman switch proximity access control etc..
The block diagram above shows all videophones coming back to one point with all the
video distributors at that point. It is also possible to spread the video distributors around
the building (Please see wiring diagrams for more information).
Safety Note :
An earth connection should also be fitted to the door panel stainless steel
facia using one of the studs provided.
TESTING THE INSTALLATION
- Check all the connections have been made correctly and then power up the system.
- Call all the apartments in turn. Check for call tone to the apartment, speech in both
directions, video (optional) and lock release.
- If the volume of speech needs to be adjusted, this can be done by adjusting the presets
on the rear of the amplifier at the door panel.
- On calltone call system only, if the call tone volume needs adjusting this can be done at
each handset (Three position slid switch on the telephone).
- Set the time clock on/off times (Use the instructions supplied with the time clock).
Check the trade button only works when the time clock is on.
PANEL CARE
The door panels are manufactured from either 12 Gauge 304 grade stainless steel or
mirror finished brass. It is important that the facia is cleaned on regular occasions to
prevent dirt build up and tarnishing of the metal. A general household metal polish can be
used but care should be taken to follow the grain of the metal when polishing and also
avoid any polish build up around the call buttons which may prevent the buttons from
operating correctly.
