Your cart is empty.
Your cart is empty.The AF3600 transfer unit distinguishes between ring signals from 2 different entrances sends a unique tone and current to energize only the one entry (back or front) from which the signal came. It is used with the 3404 (4-wire) or 3406 (5-6 wire) apartment station.
Nick
2025-08-26 15:26:07
Good device
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