Ethernet RJ45

The C6915 has two Gigabit LAN ports (X102, X103). The 100Base-T and 1000Base-T Ethernet standards enable the connection of corresponding network components and data rates of 100/1000 Mbit/s. The required speed is selected automatically.

The RJ45 connection technology with twisted-pair cables is used. The maximum length of the cable connection is 100 m.

The controllers are used as follows, based on the device generations:

Controller classification based on device generations

Generation

Controller

C6915-0010

Intel® i210 for LAN1 and LAN2

C6915-0020

Intel® i210 for LAN1 and LAN2

The Ethernet port i210 connected via PCIe is usually suitable for cycle times <= 1 ms and for distributed clock applications with EtherCAT.

Ethernet RJ45 1:
Ethernet interfaces pin numbering
Ethernet interface pin assignment

Pin

Signal

Description

1

T2 +

Pair 2

2

T2 -

3

T3 +

Pair 3

4

T1 +

Pair 1

5

T1 -

6

T3 -

Pair 3

7

T4 +

Pair 4

8

T4 -

The LEDs of the LAN interfaces indicate the activity and the data transmission rate (Mbit/s). The LED shown completely green in the figure indicates whether the interface is connected to a network. If this is the case, the LED lights up green. The LED flashes green when data transmission is in progress on the interface.

The green/orange LED shown in the figure indicates the data transmission rate. If the speed is 100 Mbit/s the LED is orange, at 1000 Mbit/s it is green.