User's Manual

ACR3x – User Manual [e-mail]
Version 1.00
www.acs.com.hk
Page 9 of 34
3.0. Using the application with ACR31 mobile card reader
This section provides a simple step-by-step procedure on how to use the ACR31 mobile card reader
with a magnetic stripe card using the AudioJack demo application.
3.1. Using a magnetic stripe card
1. Connect the ACR31 to the audio port of your mobile device.
Note: Make sure that the volume is set to its maximum level to allow communication between
the ACR31 reader and your mobile device.
2. Open the AJ Demo application.
3. The reader is in sleep mode by default. Tap Reset to wake up the reader.
Note: By default, the reader will enter sleep mode if there is no operation after 4 seconds.