Schlage HK-CR, User Manual

Page: 84 / 88

Glossary
80
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.