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To connect the RLM 10/100BASE-T Ethernet interface to an SIMATIC NET
Optical Media Converter OMC (6GK1100-2AB00 or 6GK1100-2AC00), the
RLM Ethernet interface must be configured to 100 Mbit/s. If the RLM is
operating in default mode (auto negotiation), a function block will occur
when activating the RLM with a connected OMC.
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Switched LANs operate by switching the connection paths for each data
packet based on the target address. Data packets are only routed through
segments leading directly to the target. Switches such as SIMATIC NET
OSM and ESM are used for switching connection paths. The switch
operates in self-learning mode to create an allocation table of Ethernet
(MAC) addresses to the output port.
Any mobile users connected to a switched LAN via RLMs will also have
access to switched communication paths. If a mobile user is roaming
(switches from one radio cell to another), the switches must activate
another communication path. Information on the new coverage area can only
32
Industrial Ethernet Wireless LAN Radio Link Module RLM
C79000-G8976-C170-01
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