Access control applications
EST3 Installation and Service Manual 3.13
SDU programming
If the CRC is to be used for anti-passback this must be
configured using the SDU. The CRC configuration dialogs let
you select the type of anti-passback you want to use:
• None
• Logged
• Timed
• Strict
You can also assign a predefined command list to various access
granted or access denied events, including the anti-passback
events:
• Access granted anti-passback
• Access denied anti-passback
The CPU runs the command list you specify when either of these
events occurs.
ACDB programming
With timed anti-passback, the cardholder is automatically
marked out after a specified period of time. This period is
defined by the ACDB. The period can be set from 0 through 255
minutes (4 hours and 15 minutes).