Recognition Systems HandKey II Installation And Operation Manual page 130

HandKey II Installation and Operation Manual
Time Zone – A Time Zone is an identified period of time, during which a user is
allowed access to an area secured by a Hand Reader. Access attempts outside
of that time period are rejected by the Hand Reader.
Transaction – A Transaction is any kind of event recorded at a Hand Reader.
Transactions may include actions such as accepted or denied hand reads, input
and output events, and doors opening and closing.
Wiegand™ Reader – The term "Wiegand Reader" has two meanings depending upon
its application. A true Wiegand reader reads a specially constructed card made
up of small pieces of magnetic wire. As the card is swiped through the reader,
the individual bits of wire generate a unique data signal. This data signal is
made up of a Facility Code field (typically 8 bits), an ID Number field
(typically 16 bits), and parity bits (typically 2 bits) for a total of 26 bits of data.
Now this 26-bit Wiegand data format has been adopted by a variety of access
reader devices and access control panels for transferring user access data.
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