Access Cards - 2N Access Unit Configuration Manual

5.2.4 Access Cards

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Each 2N Access Unit user can be assigned one or more access RFID cards. Typically,
the card ID is included in the User list together with such user data as phone numbers,
e-mail address and so on. Or, you can define the RFID cards in the Installed Cards list,
which defines a limited number of cards to be assigned to visitors, for example.
You can manage – add, remove and modify items – the list of installed cards manually
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via the 2N Access Unit configuration interface. The main advantage of this list is the
option to add/remove cards using the Service plus/minus card without accessing the
configuration interface. Unlike the User list with its up to 1999 positions, the Installed
Cards may contain only 20 cards.
To add a card to the list, tap the plus card and then the card to be added on the
reader. The RFID card will be added if the list in not full and does not include the card
yet.
To remove a card from the list, tap the minus card and then the card to be removed
on the reader. The RFID card record will be cancelled and access via this card will be
blocked.
The Service cards are common cards that you can define for this special purpose.
Enter their IDs in the Plus Card ID and Minus Card ID fields in the Service Cards
section.
The access card ID is a sequence of 6–32 characters including 0–9, A–F (i.e.
hexadecimal number of the length of 24 to 128 bits). The number of characters in the
card ID can be different in different card types. However, it holds true that cards of
one and the same type have identically long IDs.
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If you use an external card reader connected to the 2N Access Unit via the Wiegand
interface, the card ID is shortened to 6 or 8 characters for transmission (depending on
the transmission parameters). If you apply a card to an internal reader, you will receive
a complete ID, which is typically longer (8 chars or more). The last 6 or 8 characters,
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