EDS-510A Series User’s Manual Featured Functions
3-22
Ring Coupling
Switch A: "Coupler"
Switch B
Switch C
Switch D
Main Path
Coupling Port
Backup Path
Coupling
Control Port
To support the Ring Coupling function, select two EDS-510A (e.g., Switch A and B in the above
figure) in the Turbo Ring and another two EDS-510A in the adjacent Turbo Ring (e.g., Switch C
and D).
Decide appropriate coupling ports in each switch and link them together. Next, assign one switch
(e.g., Switch A) as coupler and set the proper coupling control port with another switch (e.g.,
Switch B) in the same Turbo Ring, and then connect them. The Coupler switch (e.g., Switch A)
will monitor switch B through the coupling control port to decide if the coupling port’s backup
path should be recovered or not.
ATTENTION
The user only needs to enable the “Ring Coupling” function on one EDS-510A (not on the
opposing EDS-510A or an adjacent EDS-510A). The Redundant Port, Coupling Port, and
Coupling Control Port must all be assigned to different ports.
NOTE Ring Coupling and Ring Master do not need to be set up on the same EDS-510A.