Siemens SCALANCE X-400 Operating Instructions Manual page 104

Installation and Commissioning
Possible Settings of the Ring Ports
Note
Only two ports of a switch can ever be defined as ring ports. All other ports in slots
6 and 7 that are not defined as ring ports can be used for the optical connection of
nodes or subnets.
● Switch 1:
In the schematic below, switches R1 and R2 are set to OFF .
● Switch 2:
In the schematic below, switch R1 is set to ON and R2 is set to OFF .
● Switch 3:
In the schematic below, switch R1 is set to OFF and R2 is set to ON .
Figure 6-22
104
The three possible settings for ring ports with R1 and R2
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
C79000-G8976-C186-03