AML KDT750 Price Verification System - Manual (Page 33)

KDT750 User’s Guide
4 - 7
Digital I/O
The KDT750 base unit contains two electrically isolated digital inputs and two electrically iso-
lated digital outputs.
Digital Outputs (Micro-Relays)
The KDT750 digital outputs are controlled via internal micro-relays driven by the micro-
processor. These relays can be used to drive external devices such as:
• Lights and Beacons
• Door Strikers
• Sirens
• Stationary Scanners
The internal relays are designed for low voltage applications. To use the relays in high volt-
age situations, an additional external rely should be implemented.