BECKHOFF CU8880-0000 - Manual (Page 6)

Product Description
4 CU8880-0000
Power Supply
Power supply via USB-port The Ethernet controller does not need any
additional power supply. The power supply
(5 V DC) is realized by the USB connector.
The LED P20 lights green when power supply
is connected.
Data connectors
The connector are 1 USB port Type B and a RJ45-connector. The pins
are described below:
USB type B Port (X20) (standard-cable)
USB type B Port Pin Signal
1 VCC
2 Data -
3 Data +
4 GND
shield shield
RJ 45-Port (X10) (standard CAT5-cable)
RJ 45 Port
Pin Signal
1 TX+
2 TX-
3 RX+
4 n.c.
5 n.c.
6 RX-
7 n.c.
8 n.c.