Siemens SIMATIC 500 Series - Line Topology Without Optical Fiber Link Monitoring

3.1 Line topology
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3 Network Topologies
Version 2.1 10/01
3.1.2 Line topology without optical fiber link monitoring
Use this operating mode if you connect a PROFIBUS OLM with another optical fiber network component, which does
not send a frame echo and does not expect or is not compatible with a frame echo in accordance with PROFIBUS
guidelines (optical/electrical converter).
 Monitoring mechanisms:
Send echo: no
Monitor echo: no
Suppress echo: no
Monitor: no
Segmentation: no
Individual fiber links are not monitored in this operating mode.