Switch User Manual
Installation and Commissioning
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
104 C79000-G8976-C186-03
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.
765
P 1
P 2
P 1
P 2
P 1
P 2
765
P 1
P 2
P 1
P 2
P 1
P 2
76
5
P 1
P 2
P 1
P 2
P 1
P 2
P o r t 1
P o r t 1 P o r t 1 P o r t 1P o r t 2
P o r t 2
S w i t c h 1 S w i t c h 2 S w i t c h 3
Figure 6-22 The three possible settings for ring ports with R1 and R2










