Doorking 1812 Plus

With its intercom mode programming feature the 1812 can also be connected to a pbx or ksu type. 1 1 mount the 1812 plus different mounting configurations of the 1812 plus models 1 2 install by pass board for telephone mode configurations 1 3 telephone line wire 1 4 16 5 vac power wiring only. Residential telephone intercom access control system.

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