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Operation
not entered correctly within 30 seconds, the CRC log an access
denied PIN not entered event, increments the attempt counter,
and denies access.
12. PIN required for disarm
If the CRC partition is armed, the CRC checks the PIN required
for disarm option. If this option is set, the red LED on the reader
will flash slowly to inform the cardholder to enter the PIN. If the
PIN is successfully entered, processing continues. If the PIN is
not entered correctly within 30 seconds, the CRC logs an access
denied PIN not entered event, increments the attempt counter,
and denies access.
13. Two-person rule
The CRC now checks for the two-person rule option. This
feature is typically used in a high security application, where
policy requires a minimum of two persons to be in a secured
area. (Examples: top secret areas, vaults, high value stockrooms).
If the option is not selected or if the partition is already occupied
by two or more people, processing continues. If the option is
selected, the CRC flashes the red LED twice per second. If a
second different cardholder badges in, processing continues. If a
second cardholder does not badge in within 30 seconds the CRC
logs an access denied two person rule timeout event, increments
the attempt counter, and denies access.
To gain access, both cards must have access privileges for the
partition and must comply with any schedule restrictions.
14. Anti-passback
CRC processing continues with a check for the anti-passback
option. If the anti-passback option is not selected, processing
continues. If it is selected, the location of the cardholder is
determined.
If the cardholder is entering a partition and is currently marked
as outside that partition, processing continues. If the cardholder
is entering a partition and is currently marked as already inside
that partition, the CRC looks to see which type of anti-passback
is currently set.
If the log only option is selected, an anti-passback violation flag
is set and processing continues. If the log option is not selected,
the CRC logs an access denied anti-passback event, increments
the attempt counter, and denies access.
If the timed anti-passback option is selected and the card read
was from an outside card reader, the cardholder is marked as
being in and the anti-passback timer is set. If the card read was
7.4
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CRC Technical Reference Manual