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 1
RD+
Pin 2
RD-
Pin 3
TD+
Pin 4
n. c. (Not connected)
Pin 5
n. c. (Not connected)
Pin 6
TD-
Pin 7
n. c. (Not connected)
Pin 8
n. c. (Not connected)
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.
Autonegotiation
Autonegotiation means the automatic detection/negotiation of the transmission rate and the
operating mode of ports at the opposite end. This makes it possible to configure different
devices automatically.
Connecting up
5.2 Industrial Ethernet
SCALANCE XB-100
Operating Instructions, 02/2019, C79000-G8976-C473-03
25
Summary of Contents for SCALANCE XB-100 Series
Page 8: ...Introduction SCALANCE XB 100 8 Operating Instructions 02 2019 C79000 G8976 C473 03 ...
Page 10: ...Safety notices SCALANCE XB 100 10 Operating Instructions 02 2019 C79000 G8976 C473 03 ...
Page 32: ...Upkeep and maintenance SCALANCE XB 100 32 Operating Instructions 02 2019 C79000 G8976 C473 03 ...
Page 44: ...Dimension drawings SCALANCE XB 100 44 Operating Instructions 02 2019 C79000 G8976 C473 03 ...
Page 54: ...Index SCALANCE XB 100 54 Operating Instructions 02 2019 C79000 G8976 C473 03 ...
