DoorKing 1817 - Manual (Page 31)

3.1.3 System Memory
Prior to starting the programming of the PC programmable telephone entry system, you must know
the memory capacity and the type of the EEPROM chips that are installed in the unit. This can be
determined by inspecting the small chip that has a tag listing the memory size on it. This memory
size determines the number of residents, vendors and four-digit entry code numbers that can be
stored in the system. If the memory chips are MemPLUS chips, device (card, transmitter) codes,
relay hold time zones, security levels, and elevator control functions can be entered into the system
memory. MemPLUS chips are identified by the letters “MP” printed on the tag on the small chip. If
the tag does not indicate MP, the chips are standard chips and the system will not have advanced
feature capabilities. The table below list the valid numbers available with each memory level.
500
500
MP
Standard Chip MemPLUS Chip
System
Memory
Phone Number
Capacity
Name
Capacity
Entry Code
Capacity
Device Code
Capacity
25 25 25 25 625
75 75 75 75 1875
125 125 125 125 3125
250 250 250 250 6250
500 500 500 500 8000
1000 1000 1000 1000 8000
2000 2000 2000 2000 8000
3000 3000 3000 3000 8000
IMPORTANT!! MemPLUS (MP) chips must be installed in this system if device (card,
transmitter, PIN) codes, tracker expansion boards, or elevator control boards are used with
the system. Relay hold open time zones, security levels, and elevator control functions
require MemPLUS chips. None of these features are available if standard (non-MP) chips are
used.
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