- ページ 13

携帯電話アクセサリー Dot Origin VTAP100-PACSのPDF インストレーション・マニュアルをオンラインで閲覧またはダウンロードできます。Dot Origin VTAP100-PACS 14 ページ。 Mobile nfc pass reader

4 Hardware lock to prevent firmware or configuration

change

You can lock the VTAP100 so that its firmware and configuration cannot be changed. You can either

do this in software or hardware.

A software lock leaves some files visible. A hardware lock means that the VTAP100 will no longer be

detected as a composite USB device.

You can use a hardware lock provided the jumper labelled LOCK (close to the MicroUSB connector)

remains accessible on a VTAP100-OEM.

Connect a jumper across LOCK on the PCB to lock the device, preventing firmware or configuration

changes.

Figure 4-1 Jumper positions on VTAP100-PACS PCB V3a

When you start the VTAP100, the presence of this jumper means the connected PC will not detect a

USB mass storage device. The VTAP100 will only be detected by the PC as a keyboard (or keyboard

and virtual COM port).

At any time you can remove the jumper across LOCK. When you restart the VTAP100 it will be

detected as a USB mass storage device and you will be able to make firmware or configuration

changes again.

VTAP100-PACS V3A INSTALLATION GUIDE

PAGE 9