Planning/configuring
7.1 Network topologies
Optical link module
Operating Instructions, 01/2020, C79000-G8976-C270-06
61
Functional disruption due to incorrect transmission medium
No
plastic fiber-optic cable may be connected to an OLM that uses glass fiber-optic cable
and vice versa.
7.1.5.2 Redundant optical ring with two OLMs
Setting up a redundant optical ring with two PROFIBUS OLMs can be seen as special case
of the redundant optical ring and can be implemented with the following two configurations.
Figure 7-4 Configuration 1
Figure 7-5 Configuration 2
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