EDS-405A/408A Series User’s Manual
Featured Functions
3-23
“Turbo Ring” rings with an even number of EDS units
Master
If there are 2N EDS units (an even number) in
the “Turbo Ring” ring, then the backup segment
is one of the two segments connected to the
(N+1) st EDS (i.e., the EDS unit directly
opposite the master).
“Turbo Ring” rings with an odd number of EDS units
Master
Segment N+1
If there are 2N+1 EDS units (an odd number) in
the “Turbo Ring” ring, with EDS units and
segments labeled counterclockwise, then
segment N+1 will serve as the backup path.
For the example shown here, N=1, so that
N+1=2.
Determining the Redundant Path of a “Turbo Ring V2” Ring
Master
For a “Turbo Ring V2” ring, the backup
segment is the segment connected to the 2nd
redundant port on the master.
See
Configuring “Turbo Ring V2”
in the
Configuring “Turbo Ring” and “Turbo Ring
V2”
section below.
