Siemens SIMATIC Rack PC 840 Manual page 124

Hardware Information
Ethernet RJ45 Connection, X700
Figure 7-8 Ethernet port
Pin-No.
1
2
3
4, 5 *
6
7, 8 *
S
* is not necessary for data transfer
7-16
LED yellow
1
Designation
TD+ Transmitted data
TD– Transmitted data
RD+ Received data
SYMR Internal 75 Ω output
Received data
SYMT Internal 75 Ω output
Shield
LED yellow Connection
LED green Activity
LED green
8
Description
Output
Output
Input
-
Input
-
-
-
-
SIMATIC Rack PC 840 Manual
Input / Output
A5E00104826-03