Function description
Operating Manual PITreader, PITreader Firmware V1.5.x
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Once the first transponder key is removed, a 30-second time window is activated. Au-
thentication with the second transponder key can occur within this time window. The
device LED will flash green until the 30-second time window has elapsed or the second
transponder key is inserted.
} Cancel authentication process
An authentication process that has been started will be cancelled if a second valid
transponder key is not inserted within the 30-second time window or the same transpon-
der key is re-inserted.
An authentication process that has been started is not cancelled as a result of an invalid
transponder key.
} Restart authentication process after it has been cancelled
The authentication process can be restarted by re-inserting and removing the first
transponder key.
} Authentication
When the authentication process is started, a user can authenticate himself with a
second transponder key within the 30-second time window.
Once the second transponder key has been inserted, it runs through all the authentication
steps (see Authentication procedure [ 14]). If it is a valid transponder key, then au-
thentication occurs.
Notes:
} Both transponder keys may be any transponder key; i.e. there is no need for special or
preconfigured transponder keys. However, the transponder keys must be valid for the
specific application.
} The permission enabled via authentication through the second transponder key is estab-
lished internally. The permissions on the two transponder keys are evaluated and authen-
tication occurs with the lower of the permissions on the two transponder keys
Examples:
– Permission on the first transponder key: 10
Permission on the second transponder key: 5
-> Authentication occurs with permission 5
– Permission on the first transponder key: 1
Permission on the second transponder key: 5
-> Authentication occurs with permission 1
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