
Intelligent Industrial Ethernet Switch with Fibre Ring Function
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Black Box Network Services
Data transmission in failure status
Ring Mechanism
This patented protection mechanism supports the fast reconfiguration of the data
transmission in case of failure of one fibre segment. This function is a fixed feature of
the industrial switch. During this operation one switch is having the manager function,
all other switches are normal ring switches.
Each switch is monitoring the status of the connected fibre segment. In case of failure
the connected switch forwards this information to the ring manager. The ring manager
terminates the interruption of the ring immediately. The data is transmitted in all
directions. This fast signalling will detect a failure within a few milliseconds (depending
on the ring size).