Dual ring, 4 dual ring – Husky HME-423E User Manual
Page 58
Network Applications
5-4
5-4 Dual Ring
Although Ethernet Direct provides the Dual Homing technology for the industrial customers who may need to
connect their switches from a field environment to the centralized backbone, some users may not deploy
Cisco or HP switches. In some application cases, customers would like their backbone switches to be the
same as those switches in their field environment equipped with industrial-grade protection and yet serve as
the backbone network. Considering the needs, Ethernet Direct released new redundant technology called
Dual Ring
.
The Dual Ring is recommended when the concern is “cost” or small projects with lesser amount of switches.
Dual Ring allows the connection up to two ring groups to the central backbone and the configuration will only
exist in those switches with minimum 8 ports availability.
Figure 4 Example of Dual Ring Connection Diagram