Operating instructions

Active Components and Topologies
6-10
SIMATIC NET Tw isted-Pair and Fiber-Optic Networks
C79000-G8976-C125-02
6.1.4.2 Redundant Ring Structure with Industrial Ethernet OLMs
OLM OLMOLM OLM
1. ITP standard cable 9/15
2. TP cord 9/RJ-45
2
11
3
3. Fiber-optic cables
in the redundant mode
Figure 6-5 Redundant Ring with OLMs
For more detailed information about configuration and the way in which networks
function with these topologies refer to the chapter “Network Configuration”.
Note
The modules in the redundant ring can only be connected to each other on
fiber-optic cables.