KDC User Manual MULTIPLE SPECIAL BARCODES
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19.4 USB OTG (On-The-Go) Mode
KDC470/475 support OTG mode when using Android phone with a smartphone case.
KDC470/475 smartphone case allows user to charge Phone and KDC470/475 at the same time.
However, it is not possible to charge Phone if using OTG mode. It should be switched
Bluetooth mode while charging a Phone.
There are two modes in KDC470/475: OTG mode and Bluetooth mode.
• KDC470/475 stores mode in NVRAM
• These modes are only determined via a special barcode and a command
In the OTG mode, KDC470/475 is switched to Bluetooth mode temporarily when
• KDC470/475 is running w/o a smartphone case
• KDC470/475 is running w/o a smartphone
• KDC470/475 is running w/ a smartphone which doesn’t support OTG mode
• KDC470/475 and Phone are under charging via USB or Cradle
o KDC470/475 is switched back to OTG mode when USB cable is unplugged or
removed from charging cradle.
All transitions between OTG and Bluetooth modes are done automatically in KDC470/475 and
application can keep connections when transition is happened with following an application
guide.
[Note] To switch and connect between OTG and Bluetooth, the KDC470/475 should be paired
with Phone before using it.
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