3Com 5017C-LS Switch User Manual


 
1 - 10 ONline 17-Slot System Concentrator Installation and Operation Guide
Figure 1-6. Redundant Cable Link Configuration
Backup Concentrator
A second concentrator or 3Com Fiber Ethernet Star Coupler may be used
to backup the primary concentrator in a star-wired network. This provides
full fault tolerance for a backbone cable plant.