User's Manual

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ACR89 - User Manual
Version 0.00.01
Page 6 of 14
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www.acs.com.hk
3.0. Scope and Limitations
The ACR89 allows working in two modes, stand-alone mode and PC-linked mode. It is embedded
with Real Time OS to allow stand-alone operations and it also allows the device to be operated by a
computer (running on Windows, Mac and Linux OS) connecting through an USB cable.
When used as a stand-alone terminal, the ACR89 device is fully functional with the Pin-Pad for user
input and the LCD screen for display output. The device can be accessed or programmed through a
computer (running on Windows, Mac and Linux OS) using USB communication protocol.