© SICK AG • Presence Detection • Subject to change without notice • 8015887 29
Operating instructions Register sensors RS25
Electrical connection
Contact
Marking
Wire color
Description
1
Rx+
White
Receive data signal, not inverted
2
Tx+
Gray
Send data signal, not inverted
3
Rx–
Red
Receive data signal, inverted
4
Tx–
Blue
Send data signal, inverted
Table 6:
Ethernet socket description