Introduction - GE WIU-4 Installation Manual

Introduction

1
Introduction
The Wiegand Interface Unit-Four State (WIU-4) board features a
Wiegand to F/2F data converter, which can accommodate both
conventional and proprietary Wiegand reader protocols, and
includes an 8 Amp relay for door strike control (entrance/exit)
activity. It provides the communications interface that enables
support of up to 16 Wiegand-output readers.
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When combined with most conventional Proximity, Mifare , and
ISO-15693 Wiegand-output readers, the WIU-4 reports
immediate alarm notification of short circuit, cut line, open
circuit, or closed circuit conditions to the GE access control
system.