Recognition Systems HANDKEY II Manual page 98

HandKey II Manual
Time Zone – A Time Zone is an identified period of time, during which a user is
Transaction – A Transaction is any kind of event recorded at a Hand Reader.
Wiegand™ Reader – The term "Wiegand Reader" has two meanings depending
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and can be stored at a host computer when the HandNet™ for
Windows™ software is used.
allowed access to an area secured by a Hand Reader. Access attempts
outside of that time period are rejected by the Hand Reader.
Transactions may include actions such as accepted or denied hand
reads, input and output events, and doors opening and closing.
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.