Connecting up
4.2 Industrial Ethernet
SCALANCE XR-100WG
Operating Instructions, 05/2017, C79000-G8976-C455-01
23
4.2
Industrial Ethernet
Note
Strain relief of the interfaces
To prevent weights or mechanical movement that can affect an interface causing interrupted
contact, fix the cables to a cable guide or rail at short intervals.
R-45 connector technology
The attachment to Industrial Ethernet uses RJ-45 connected technology with MDI-X
assignment.
Pin assignment
The following table shows the pin assignment of the R-45 connectors.
Pin number
Assignment
R-45 connector
Pin 8
n. c.
Pin 7
n. c.
Pin 6
TD-
Pin 5
n. c.
Pin 4
n. c.
Pin 3
TD+
Pin 2
RD-
Pin 1
RD+
MDI / MDI-X autocrossover
With the MPI/MDI-X autocrossover function, the send and receive contacts of an Ethernet
port are assigned automatically. The assignment depends on the cable with which the
communications partner is connected. This means that it does not matter whether the port is
connected using a patch cable or crossover cable. This prevents malfunctions resulting from
mismatching send and receive wires. This makes installation much easier for the user.
Note
Formation of loops
Please note that the direct connection of two ports on the IE switch or accidental connection
over several IE switches causes an illegal loop. Such a loop can lead to network overload
and network failures.
Summary of Contents for SCALANCE XR-100WG Series
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Page 10: ...Safety notices SCALANCE XR 100WG 10 Operating Instructions 05 2017 C79000 G8976 C455 01 ...
Page 36: ...Dimension drawings SCALANCE XR 100WG 36 Operating Instructions 05 2017 C79000 G8976 C455 01 ...