EXFO FastReporter 2 - Manual (Page 254)

Working with iOLM files
244 FastReporter 2
Customizing the Elements Table Tab
Enabling 2:N Splitters
2:N splitters can be used to create network redundancy. If a network break
occurs, you can still connect through the other network branch. This
ensures active communication while the repairing of the broken network
is in progress.
Note: The application allows you to use the 2:N splitter feature in the iOLM
configuration file and you can only use the 2:N splitter feature for splitter
ratio stage 1.
In the splitter ratio stage 1 field, if 1:? or None is selected and you enabled
the 2:N splitter option, the 1:? and None are replaced by a 2:2 splitter value.