Specifications

C•CURE apC/L Technical Manual
apC/L Event and Card Storage
2-5
apC/L Event and Card Storage
Event storage space in the apC/L’s memory is automatically adjusted
according to the space required for storing cardholder information.
Increasing the number of records stored decreases the number of events
(transactions) that the memory can hold. Adding optional software
features, such as elevator control (10 bytes), anti-passback (4 bytes)
activation and expiration dates (4 bytes each), and 32-bit card records
reduces cardholder counts and event storage space. Use the following
formula to estimate the number of cards that can be supported for a given
memory size.
where:
Memory_size is the total APC RAM in kbytes.
Card_record_size is the number of bytes comprising a record. A
typical card_record_size for an 800 system can be estimated as
follows:
Events are the average number of events that an apC must store
between uploads to the host. A typical value is 1000.
Item Bytes
Card number 4
Issue + PIN 4
Activation date 4
Expiration date 4
Clearances 10
TOTAL 26
number of cards
memory_size 64
–
()1024 events 10×()
–
×
card_record_size
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