BF Apartment Station Digital Entry System
PD
–166 Issue 1
Installation and Operating Manual
Page 10 of 48
Video Controller
The video controller(s) and power supply(ies) should be wall-mounted in a convenient
cupboard or other protected environment with available mains power. Cable length to the
apartment station
should be less than 150m, see „Cable Distances‟ page 13. In many
cases the video controllers will be in the same location as the door controller(s), but they
may be distributed as required to reduce wiring distances. When placed in different
locations, each location must have its own local power supplies.
Gate Controller
The gate switch controller BSSW is wired between the block door controllers and the video
controllers, so would normally be wall mounted next to a door controller.
For further details see the “bell
issimo
and Bellcall Manual Gate and Block (PD-
120)”.
Separately Powered Apartment Stations
The limitation of up to 4 apartment stations ringing but only one displaying, as indicated in
the power supply and cable distance tables on page 13, can be overcome by the use of
supplementary power from a 340C.
Power Supply Requirements
The system is powered by 12V power supplies only: -
Model PS4 12V, 4A.
Model 840
12V, 4A battery backup supply.
Model 340C 12V, 1.5A optional for extensions.
Note 1. The 28V referred to on the apartment station, video controller and wiring diagrams
is internally generated in the controller. DO NOT use any power supply other than 12V or
damage may occur.
Note 2. The PS4 power supply has been specifically designed to operate with the high-
surge requirements of the system. Bell System is unable to guarantee functionality or
provide support for systems which use third party power supplies.
