Description of the interfaces
CX9020
18
Version: 2.0
5.2
Ethernet RJ45 (X000, X001)
Both Ethernet interfaces are switched and independent of each other. Please note the following points for an
Embedded PC with switched Ethernet interfaces:
• The Embedded PC may not be connected to a local network if at the same time EtherCAT is operated
via the second EtherNET interface. The EtherCAT telegrams (broadcast) disturb the local network, the
consequence being that the Embedded PC can no longer be reached via a host PC.
• No additional switch is required for a line topology.
X000
X001
LAN 1
LAN 2
LINK / ACT 2
SPEED 2
LINK / ACT 1
SPEED 1
Fig. 6: Ethernet interface X000, X001.
Both Ethernet interfaces reach speeds of 10 / 100 Mbit. The LEDs on the left of the interfaces indicate the
connection status. The upper LED (LINK/ACT) indicates whether the interface is connected to a network. If
this is the case the LED is yellow. The LED flashes when data transfer on the interface is in progress.
The lower LED (SPEED) indicates the connection speed. The LED is not lit if the speed is 10 Mbit. At 100
Mbit the LED is green.
Fig. 7: Ethernet interface, pin numbering.
Table 7: Ethernet interface X000 and X001, pin assignment.
PIN
Signal
Description
1
TD +
Tr
2
TD -
Transmit -
3
RD +
R
4
connected
not used
5
6
RD -
Receive -
7
connected
not used
8
Summary of Contents for CX9020
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