B&B Electronics EIR618-2SFP-T - Manual (Page 33)

Manual Documentation Number: EIR618-2SFP-T_5107m 21
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com
Coupling Ring Application
If the network has more than one X-Ring group, the coupling ring function is
used to connect them and add redundancy. This ensures that transmissions
between the two ring groups will not fail. The figure below is an example of
the coupling ring application.