The model 1816 is a component style system that consists of a lobby panel, main control cabinet and line interface board. The system is built in accordance with the number of telephone lines to be interfaced with.
Options • Several different styles of lobby panels are available for use with this system . • A standard touch-tone telephone can be used as the lobby panel with this system. • PC Programmable 1833, 1834, 1835 and 1837 systems can be used as lobby panels with this system (A central Office (C.O.) phone line must be used with this system when PC programming lobby panels are installed). • Installing a Central Office (C.O.) phone line provides additional advanced features.
DoorKing 1816-082 Small Control Panel • Will house up to 5 relay boards to interface with up to 60 phone lines. • Dimensions: 13.25"w x 5"d x 21.25"h
DoorKing 1982-010 Relay Board • Interfaces with up to 12 phone lines • To determine the number of relay boards needed, divide the total number of phone lines by 12, round up to the nearest whole number. IE: 270 phone lines ÷ 12 = 22.5. Round up to 23. For 270 phone lines you will need 23 relay boards.