1800 Telephone Entry Memory Chip (DOORKING)

Memory Chip for 1800 series DoorKing Telephone Entry Systems: DoorKing telephone memory chips come as a set of two chips, the large chip is the A-Z chip, and small chip is the memory capacity chip. 1810-068 100 Mem 1802EPD 1810-075 1K Mem 1802/03/08/10 1830-401 3K Mem, No cards, (1834 only) 2nd generation memory chip eliminates the use of the small memory chip. This chip can only be used with compatible version boards: Board Rev Letter 1834-009 U 1834-010 U 1830-402 3K Mem, Cards-APB (1833-35-37-38) New style memory chip eliminates the use of the small memory chip. This chip can only be used with compatible version boards: Board Rev Letter 1833-010 V 1835-009 V 1835-010 V 1837-010 V 1838-010 U 1830-403 3K Mem, No cards, (1834 only) New generation memory chip for the 1834 series telephone entry unit. Backwards compatible with previous version 1830-401 memory chip 1834-157 3K Mem, No cards, (1834 only) Early generation memory chip set used in the 1834 unit. 1835-147 3K Mem, Cards-APB (1833-35-37) Early generation memory chip set used in the 1834 unit. Notes: Replaces discontinued chip set 1835-157 & 1835-142. Entry systems sold separately. Please choose the correct memory chip for your application in the drop down menu. Product information provided by gatesandcontrols.com