Beckhoff CX9000 Manuel d'utilisateur télécharger pdf (Page 19)

Product overview

Embedded PC 17

CPU basic module with 2 Ethernet RJ 45 connectors:

RJ 45 interface (socket):

Assignment of the RJ45-interface, Port 1:

PIN Signal Desciption

1 TD + Transmit +

2 TD - Transmit -

3 RD + Receive +

connected not used

6 RD - Receive -

connected not used

TD & RD are exchanged at the hubs or between two PCs.

Assignment of the RJ45 interface, Port 2:

PIN Signal Description

1 TD + Transmit +

2 TD - Transmit -

3 RD + Receive +

connected not used

6 RD - Receive -

connected not used

TD & RD are exchanged at the hubs or between two PCs.

Connection of the Ethernet ports:

Warning

The two Ethernet ports of a basic CPU module must not be connected to the same external switch!

Note

Only for use in LAN, not for connection to telecommunication circuits.

Schematic structure of the network components:

The CX9000 features two MAC blocks. The first one (MAC1) operates the network interfaces for the Ethernet ports.

The two outputs are connected via a switch. In this way a line structure can be configured as described below. From

an operating system perspective this represents a single connection. The second block (MAC2) operates the

extended PC104 bus. The second physical network connection is used to run the E-bus connection. (in version

CX900x-0xxx) The signals are connected to and FPGA. This unit converts the Ethernet signals to E-bus signals. So

EtherCAT terminals can be connected to the system.

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Beckhoff CX9000 Manuel d'utilisateur Page 19