BECKHOFF CB3056 - Manual (Page 23)

USB 1-4 Chapter: Connectors
Beckhoff New Automation Technology CB3056 page 23
3.8 USB 1-4
The USB channels 1 to 4 are available as standard USB connectors.
The USB channels support USB 2.0. You may note that the setting of USB keyboard or USB mouse
support in the BIOS-setup is only necessary and advisable, if the OS offers no USB-support. BIOS-setup
can be changed with a USB keyboard without enabling USB keyboard support. Running Windows with
these features enabled may lead to significant performance or functionality limitations.
Every USB interface provides up to 500 mA current and is protected by an electronically resettable fuse.
Pinout USB connector for channel X:
Pin Name Description
1 VCC 5 volt for USBX
2 USBX# minus channel USBX
3 USBX plus channel USBX
4 GND ground