VDS. A digital simplified installation system that does not use house call wires.

A digital simplified installation audio and video door entry system that does not use house call wires.

The main trunk wiring needed in the building is:
- Audio entry system: 3 common wires.
- Video entry system: 3 common wires + 1 coaxial / 5 wires /UTP CAT5

For buildings of up to 199 homes, 2 entry accesses and central guard unit. Maximum distance: 200 mtrs.