SEW-Eurodrive 1821 2492, Manual, Page: 13 / 68

Manual – XFE24A EtherCAT Fieldbus Interface
13
4
Pin assignment
Assembly and Installation
4.2 Pin assignment
Use prefabricated, shielded RJ45 plug connectors compliant with IEC 11801, edition
2.0, category 5.
XFE24A - Ether-
CAT connection The XFE24A option is equipped with a linear bus structure with two RJ45 connectors.
The EtherCAT master is connected (via EtherCAT slaves, if necessary) with a shielded
twisted pair cable to X30IN (RJ45). Other EtherCAT units are then connected vie
X31OUT (RJ45).
54174axx
Figure 3: Pin assignment of an RJ45 plug connector
A = Front view
B = View from back
[1] Pin 1 TX+ Transmit Plus
[2] Pin 2 TX– Transmit Minus
[3] Pin 3 RX+ Receive Plus
[6] Pin 6 RX– Receive Minus
[3] [2] [1]
23
6
1
[6]
A B
According to IEC 802.3, the maximum cable length for 100 MBaud Ethernet is 100 m
(100BaseT), e.g. between 2 XFE24A interfaces.