Device Connections and Switches
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PC Cards cifX PCI, PCIe, Low Profile PCIe | Installation, Operation and Hardware Description
DOC120204UM36EN | Revision 36 | English | 2012-10 | Released | Public
© Hilscher, 2008-2012
9 Device Connections and Switches
9.1 Ethernet
Interface
For the Ethernet interface use RJ45 plugs and twisted pair cable of
category 5 (CAT5) or higher, which consists of 4 twisted cores and has a
maximum transmission rate of 100 MBit/s (CAT5).
9.1.1
Ethernet Pin Assignment at the RJ45 Socket
Note:
The device supports the
Auto Crossover
function. Due to this fact
RX and TX can be switched. The following figure shows the RJ45
standard pin assignment.
Figure 25: Ethernet Pin Assignment at the RJ45 Socket for cifX or AIFX
Pin
Signal
Meaning
1
TX+
Transmit Data +
2
TX–
Transmit Data –
3 RX+ Receive
Data
+
4 Term
1
5 Term
1
Connected to each other and
terminated to PE through RC circuit*
6 RX– Receive
Data
–
7 Term
2
8 Term
2
Connected to each other and
terminated to PE through RC circuit*
* Bob Smith Termination
Table 69: Ethernet Pin Assignment at the RJ45 Socket for cifX or AIFX
Further Notes:
(1) The RJ45 socket is only for use in LAN, not for telecommunication circuits.
(2) With loaded EtherCAT Master firmware only the RJ-45 channel 0 can be used, the
channel 1 is deactivated. For the Open Modbus/TCP firmware with V2.3.4.0 and higher
both RJ-45 RJ-45channels can be used.
