Hello, I have a question pls:
There’re two section entrances with flats ##1 to 36 and ##37 to 80 with installed BVD-342+BUD302+BK100, and there’s a gate in the building’s surrounding fence that we want to install bvd-342+bud-302 on.
We need the doorphone on the gate to work with all flats in both sections, and sure the previously installed systems must go on working as usual.
Has anyone tried such arrangement yet? Can we do it with the 300 series?
Thanks for your reply and comments.

This scheme can be done disregarding the VIZIT series. The most important is to ensure minimal wire length between a doorstation on the gate and commutators BK in the building, and use thick wires to connect all BUDs.
With regard to fire safety and other safety issues, the BUD for gate doorstation needs to be located inside the house, and connected to the gate’s doorstation with a low-voltage cable. Please make sure that the distance between the gate’s doorstation and gate’s BUD is within normal cable distances BVD-BUD given in the BUD’s operating instruction.
As for the electric wiring, you need to make parallel connection of all 3 BUDs and 2 BKs with a 4-wire cable.