IE-SW-VL08M Series User’s Manual
Featured Functions
3-24
Ring Coupling for a “Turbo Ring V2” Ring
Switch B
Switch D
Coupling Port (Primary)
Main Path
Coupling Port (Backup)
Switch A
Switch C
Backup Path
Note that the ring coupling settings for a “Turbo Ring V2” ring are different from a “Turbo Ring”
ring. For Turbo Ring V2, Ring Coupling is enabled by configuring the “Coupling Port (Primary)” on
Switch B, and the “Coupling Port (Backup)” on Switch A only. You do not need to set up a coupling
control port, so that a “Turbo Ring V2” ring does not use a coupling control line.
The “Coupling Port (Backup)” on Switch A is used for the backup path, and connects directly to an
extra network port on Switch C. The “Coupling Port (Primary)” on Switch B monitors the status of
the main path, and connects directly to an extra network port on Switch D. With ring coupling
established, Switch A can activate the backup path as soon as it detects a problem with the main
path.
ATTENTION
Ring Coupling only needs to be enabled on one of the switches serving as the Ring Coupler. The
Coupler must designate different ports as the two Turbo Ring ports and the coupling port.
NOTE
You do not need to use the same IE-SW-VL08M unit for both Ring Coupling and Ring Master.
Dual-Ring Configuration (applies only to “Turbo Ring V2”)
The “dual-ring” option provides another ring coupling configuration, in which two adjacent rings
share one switch. This type of configuration is ideal for applications that have inherent cabling
difficulties.
