Planning/configuring
7.1 Network topologies
Optical link module
56 Operating Instructions, 01/2020, C79000-G8976-C270-06
Note
Protect the optical channels that are not connected against external light and pollution by
protective caps.
Bus topology without fiber-optic link monitoring
Use this mode when you connect a PROFIBUS OLM with a different fiber-optic component
according to the PROFIBUS guideline (optical/electrical converter), which does not send a
frame echo and does not expect or tolerate a frame echo.
Monitoring mechanisms
● Send echo: no
● Monitor echo: no
● Suppress echo: no
● Monitor: no
● Segmentation: no
In this mode, there is no monitoring of the individual fiber-optic links.
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