Acer Network Device Altos R520 - Manual (Page 117)

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USB Confguration
The USB Configuration submenu allows you specify settings for USB
devices.
Address Set the base I/O address for the serial B
port. 2F8
3E8
2E8
3F8
IRQ Set the interrupt request line for the
serial B port. 3
4
Parameter Description Option
USB Controller Enables or disables the USB controller.
If disabled, all the USB controllers will be
turned off and inaccessible to the OS.
Enabled
Disabled
Parameter Description Option