IES-2060 & IES-242FX-MM/SS SERIES User Manual
ORing Industrial Networking Corp
19
5.1.3.2
O-Ring
O-Ring is one of the most powerful Redundant Ring technologies in the world. The recovery
time of O-Ring is less than 10ms over 250 units of connections. It can reduce unexpected
malfunction caused by network topology change. O-Ring technology supports three Ring
topologies for network redundancy: O-Ring, Coupling Ring and Dual Homing.
O-Ring interface
The following table describes the labels in this screen.
Label
Description
O-Ring
Mark to enable O-Ring.
Ring Master
There should be one and only one Ring Master in a ring. However if
there are two or more switches which set Ring Master to enable, the
switch with the lowest MAC address will be the actual Ring Master and
others will be Backup Masters.
1
st
Ring Port
The primary port
2
nd
Ring Port
The backup port
Coupling Ring
Mark to enable Coupling Ring. Coupling Ring can be used to divide a
big ring into two smaller rings to avoid effecting all switches when
network topology change. It is a good application for connecting two
O-Rings.
Coupling Port
Link to Coupling Port of the switch in another ring. Coupling Ring
need four switches to build an active and a backup link.
