Ethernet RJ45

The industrial PC has two Gigabit LAN ports (X108, X109). The 100BASE-T, 1000BASE-T and 2500BASE-T Ethernet standards enable the connection of corresponding network components and data rates of 100/1000/2500 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 generation:

Controller classification based on device generation

Device generation

Controller

Mbit/s

C5210-0030

Intel® i210 for LAN2 and Intel® i219 for LAN1

100/1000

C5210-0040

Intel® i210 for LAN2 and Intel® i219 for LAN1

100/1000

C5210-0050

Intel® i226 for LAN2 and Intel® i219 for LAN1

LAN1 100/1000

LAN2 100/1000/2500

The Ethernet port (X108, LAN2) connected via PCIe® with the i210/i226 controller is suitable for cycle times <= 1 ms and for distributed clock applications with EtherCAT.

The Ethernet port (X109, LAN1) integrated in the chipset with the i219 controller is suitable for real-time Ethernet applications with cycle times > 1 ms (without distributed clocks).

Ethernet RJ45 1:Fig.7: 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 (LINK/ACT) highlighted 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 when data transmission is in progress on the interface.

The green/orange LED (SPEED) shown in the figure indicates the data transmission rate. The device generations differ in terms of the possible data transmission rate. The following tables show what the LEDs mean with regard to the potential data transmission rate.

LED meaning: speed 100/1000 Mbit/s

Mbit/s

LED

100

Lights up orange

1000

Lights up green

LED meaning: speed 100/1000/2500 Mbit/s

Mbit/s

LED

100

Off

1000

Lights up orange

2500

Lights up green

With the device generation C5210-0050, the two interfaces differ in the possible data transmission rate. The speed for LAN1 is 100/1000 Mbit/s and for LAN2 100/1000/2500 Mbit/s.