36
As HID Corporate 1000 card’s format is not the same as a standard Wiegand format, to configure this
card format properly, please contact your card vendor or installer.
Parity Bits
Even and odd parity consists of 1 bit each. Even parity is calculated with the first half bits of total bits and
the odd parity is calculated with the remaining half bits. If the total bit length is odd, the bit in the middle is
used for both even and odd parity calculation. As an example:
For 26 bit (Bit 0 to 25): Bits used for even parity calculation are from bit 0 to 12, and bits 13 to 25 are
used for odd parity calculation.
For 37 bit (Bit 0 to 36): Bits used for even parity calculation are from bit 0 to 13, and bits 13 to 36 are
used for odd parity calculation. The bit 13 is used for both odd and even parity calculation.
5.1.3 Wiegand Output Options
VP-II X can also output a Wiegand code for verification failure and emergency notification (duress code).
In order for PACS (Physical Access Control System) to recognize the difference for these codes, a
separate site code needs to be assigned for each.
Output Enable Site Code Value Description
PIN Success 0 ~ 65535
A site code to be used for verification success for PIN
Users. This option must be enabled with a site code
value to output a Wiegand code when a User is verified
with a PIN.
The site code value set here doesn’t affect card Users
as the Wiegand code read from the card is directly
passed to the PACS for card Users.
Failure 0 ~ 65535
Set a site code to be used for instances of verification
failures. If this option is enabled, VP-II X will replace the
site code of original Wiegand code with this value for
both PIN and card Users.
The receiving device (PACS) must be also properly set
to be able to recognize the different site code.
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