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Catalogue No: 1000ABrand: Videx
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To expand the VP1000 & VP4000 above 4 doors a 1000A is required for each additional door. It is connected through a Serial BUS interface (only 3 wires not shielded, for a max. distance of 500 mts and max. resistance of 10 Ohm).
It is possible to connect on the same BUS 99 VproX 1000A Units for apartment doors and an additional 16 for main doors, which, during initialisation, must be addressed giving a distinguishing number (in BINARY code) by means of the 8 way dip-switch bank.
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