Ethernet RJ45
The industrial PC has three Gigabit LAN ports (X107, X110, X113). The Ethernet standards 100Base-T and 1000Base-T allow for X107 (LAN 1) the connection of corresponding network components and data rates of 100/1000 Mbit/s. The Ethernet standards 100Base-T, 1000Base-T and 2500Base-T allow for X110 and X113 (LAN2, LAN3) 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 industrial PC may only be connected to internal Ethernet networks and not to external telecommunication networks.
Intel® i219 (PHY) is used as the controller for LAN 1 and Intel® i226 for LAN 2 and LAN 3.
The Ethernet ports connected via PCIe® (X110 and X113, LAN 2 and LAN 3) with the i226 controller are generally suitable for cycle times <= 1 ms and for distributed clock applications with EtherCAT.
The Ethernet port (X107, LAN 1) integrated in the chipset with the i219 controller is generally suitable for EtherCAT and real-time Ethernet applications with cycle times > 1 ms (without distributed clocks).
Fig.7: Ethernet interface pin numberingPin | 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 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 LAN 1 and LAN2-LAN3 differ due to the possible data transmission rate as follows:
Interface | Mbit/s | LED |
|---|---|---|
LAN 1 | 100 | Lights up orange |
1000 | Lights up green | |
LAN 2, LAN 3 | 100 | Off |
1000 | Lights up orange | |
2500 | Lights up green |