Siemens SIMATIC NET PROFIBUS User Manual

Page of 490
3.1 Line topology 
11
3 Network Topologies
Version 1.0 8/00
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.