Siemens SCALANCE XB-100 Series, Руководство по эксплуатации

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Two components connected to a link segment can exchange information about the transfer and
can adapt their settings to each other. The mode with the highest possible speed is set.
Note
● If a port is set permanently to full duplex, the connected partner port must also be set to full
duplex.
● If a port operating in the "Auto negotiation" mode is connected to a partner port that is not
operating in the"Auto negotiation" mode, the partner port setting must be fixed at 100 Mbps
or 10 Mbps half duplex mode.
● If you disable the "Auto negotiation" function, the "MDI/MDI-X autocrossover" function is
also turned off. Then use a crossover cable.
5.2.2 Optical
NOTICE
Failure of the data traffic due to contamination of optical plug-in connections
Optical sockets and plugs are sensitive to contamination of the end face. Contamination can
lead to the failure of the optical transmission network. Take the following precautions to avoid
functional impairments:
● Clean the end face of field-assembled connectors carefully before connecting. No residues
of processing may remain on the connector.
● Only remove the dust caps of optical transceivers and pre-configured cables shortly before
connecting the cables.
● Close unused optical sockets and plugs as well as pluggable transceivers and slots with
the supplied protective caps.
Note
No light power measurement (PROFINET diagnostics)
The devices do not support diagnostics with light power measurement.
SC connectors
The attachment to Industrial Ethernet uses SC connector
technology (Subscriber Connector).
Connecting up
5.2 Industrial Ethernet
SCALANCE XB-100
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Operating Instructions, 02/2019, C79000-G8976-C473-03