Siemens SIMATIC S7-1200 CP 1243-8 IRC - Pinout of the Ethernet Interface

Technical data
7.3 Pinout of the Ethernet interface
CP 1243-8 IRC
Operating Instructions, 02/2018, C79000-G8976-C385-03
185
Table 7- 2 Pin assignment of the socket for the external power supply
Pin
Labeling
Function
1
L+
+ 24 VDC
2 M Ground reference for + 24 VDC
3
Ground connector
7.3
Pinout of the Ethernet interface
Pinout of the Ethernet interface
The table below shows the pin assignment of the Ethernet interface. The pin assignment
corresponds to the Ethernet standard 802.3-2005, 100BASE-TX version.
Table 7- 3 Pin assignment of the Ethernet interface
View of the RJ-45 jack
Pin
Signal name
Assignment
1
TD
Transmit data +
2
TD_N
Transmit data -
3
RD
Receive data +
4
GND
Ground
5
GND
Ground
6
RD_N
Receive data -
7
GND
Ground
8
GND
Ground