Network Topologies with OSM/ESM
Industrial Ethernet OSM/ESM
32
C79000-Z8976-C068-10
ESM in
RM mode
ESM ITP 80
ESM ITP 80
ESM ITP 80
ESM ITP 80
ESM ITP 80
ESM ITP 80
ESM ITP 80
ESM ITP 80
ESM ITP 80
2 ITP XP standard cable 9/9
2
2
2
2
2
2
2
2
2
Figure 13: Redundant Ring Structure with ESMs
Notes
•
The reconfiguration time of less than 0.3 s can only be achieved when no
components other than OSMs and ESMs (for example switches) are used in
the redundant ring.
•
In a ring, one device and one device only must operate in the redundancy
manager mode.
•
DTEs or complete network segments can be connected to ports 1 – 6
(OSM/ESM with 8 ports) or ports 1 and 2 (OSM/ESM with 4 ports) of an
OSM/ESM operating in the RM mode.
Summary of Contents for ESM
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