10 wiring for multiple units – intercom mode, 9 wiring for single unit – intercom mode – DoorKing 1812 Plus User Manual

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10 wiring for multiple units – intercom mode, 9 wiring for single unit – intercom mode | DoorKing 1812 Plus User Manual | Page 18 / 53 10 wiring for multiple units – intercom mode, 9 wiring for single unit – intercom mode | DoorKing 1812 Plus User Manual | Page 18 / 53
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