KDT900 User’s Guide
4 - 5
Digital Inputs (Opto-Isolators)
The KDT900's internal digital inputs can be used to signal events and actions from an exter-
nal source. Possible uses for the isolated input are:
• External Pushbutton Switches
• Door Sensors
• Proximity Sensors
Digital Input Wiring Diagram
Weigand Interface
The Weigand interface is used to connect proximity card and smart card readers to the
KDT900. Weigand is a simple, two-wire interface used to transmit uni-directional data from a
peripheral device to a host.
Comments to this Manuals