BECKHOFF CB1052 - Manual (Page 22)

Chapter: Connectors Back Panel Connectors
page 22 Beckhoff New Automation Technology CB1052
3.2.3 USB and LAN
To save space USB and LAN connectors are provided in the form of combo connectors. These either
comprise two USB connectors or two USB connectors and one LAN connector. This way all board
variants provide four external USB channels.
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 an 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 electronical fuse.
The board comes in different variants, some with one Gigabit-LAN connector, others with two. All LAN
connectors support 10/100/1000 Ethernet with automatic bandwith selection. Controller chips are the
ICH9R (MAC) accompanied by the 82567 (PHY) and, if present, the 82574L (MAC/PHY).
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
Pinout LAN 10/100/1000:
Pin Name Description
1 LAN-0 LAN channel 0 plus
2 LAN-0# LAN channel 0 minus
3 LAN-1 LAN channel 1 plus
4 LAN-1# LAN channel 1 minus
5 LAN-2 LAN channel 2 plus
6 LAN-2# LAN channel 2 minus
7 LAN-3 LAN channel 3 plus
8 LAN-3# LAN channel 3 minus