Introduction - ICP DAS USA ACS-20B-MRTU User Manual

1. Introduction

The No-touch Infrared Sensor Switch from ICP DAS can be used to open a door using palm
induction, which makes it more convenient when entering or exiting a room or building. The
inductive distance and the delay time for door opening are adjustable, and has red and blue
indicator lights to show the status of the switch. As people enter and exit the door using the
No-touch Infrared Sensor Switches, a time stamp recording the action can be simultaneously
logged.
The No-touch Infrared Sensor Switch includes an RS-485 interface and provides Modbus
RTU communication, which can remotely enable/disable the switch and get the induction
time records by the access control system.
Additionally, the No-touch Infrared Sensor Switch is not only used for the access control
system but also helps you control other electronic devices. While it is triggered in toggle
mode at the first time, the switch outputs ON signal, and next time outputs OFF signal.
ACS-20B(W)-MRTU User Manual
Copyright © 2021 ICP DAS Co., Ltd. All Rights Reserved
Figure 1-1 ACS-20B(W)-MRTU application architecture
Version 1.1
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