beautypg.com

Section 3 – programming, 1 system set up, 1 master code – DoorKing 1820 Telephone Intercom User Manual

Page 29: 2 1982 relay board / 1884 interface board

Section 3 – programming, 1 system set up, 1 master code | 2 1982 relay board / 1884 interface board | DoorKing 1820 Telephone Intercom User Manual | Page 29 / 63 Section 3 – programming, 1 system set up, 1 master code | 2 1982 relay board / 1884 interface board | DoorKing 1820 Telephone Intercom User Manual | Page 29 / 63