Ethernet RJ45

The C6040 has six Gigabit LAN ports (X102-X107). The Ethernet standards 100Base-T and 1000Base-T enable the connection of corresponding network components and data rates of 100/1000 MBit/s for X102 (LAN1). The Ethernet standards 100Base-T, 1000Base-T and 2500Base-T allow for X103-X107 (LAN2-LAN6) 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.

Intel® i219 (PHY) for LAN1 and Intel® i226 for LAN2-LAN6 are used as controllers.

The Ethernet ports (X103-X107, LAN2-LAN6) connected via PCIe with the i226 controller are suitable for cycle times <= 1 ms and for distributed clock applications with EtherCAT.

The Ethernet port (X102, 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:
Ethernet interface 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. The meanings of the LEDs at LAN1 and LAN2-LAN6 differ due to the possible data transmission rate as follows:

Meaning of LEDs

Interface

Mbit/s

LED

LAN1

100

Lights-up orange

1000

Lights up green

LAN2-LAN6

100

Is not lit

1000

Lights-up orange

2500

Lights up green