Siemens SIMATIC NET OLM12M Description And Operating Manual page 58

6ZB5530–3AB00–0BA0/01
Mode settings: A=Ring (active), P=Ring (passive), L=Line, I=Inactive
Figure 6: Connection of an Optical Bus Structure to a "Passive Node" of an Optical Single-Fiber Ring
Figure 6 shows the connection of an optical single-fiber ring with an optical bus structure via a
SIMATIC NET optical link module that is operated in the single-fiber ring as a 'Passive Node'. The
bus structure is therefore an extension of the optical single-fiber ring.
Within the optical single-fiber ring and the bus structure you can, therefore, only connect
passive nodes.
Copyright Siemens AG 1997
9
SIMATIC NET OLM12M