Siemens SIMATIC PC 670 Equipment Manual page 149

Release 04/02
Ethernet RJ45 connection
The Ethernet-RJ45 interface of the computing unit is assigned as follows:
Figure 7-8
Pin
No.
1
2
3
4, 5 *
6
7, 8 *
S
* Not required for data transmission
Panel PC 670 Computing Unit, Equipment Manual
LED yellow
1
Ethernet port
Short Name Meaning
TD+ Transmission data
TD– Transmission data
RD+ Received data
SYMR Internal 75
Received data
SYMT Internal 75
Shield
LED green Connection
LED yellow Activity
Hardware Information
LED green
8
Input/Output
Output
Output
Input
output -
Input
output -
-
-
-
7-17