Moxa Technologies EDS-508 user manual Switch a Coupler

EDS-508 Series User’s Manual Featured Functions

Ring Coupling

Switch B

Main Path

Coupling

Control Port

Backup Path

Coupling Port

	Switch C
Switch A: “Coupler”

To support the Ring Coupling function, select one EDS (e.g., Switch A in the above figure) in the Turbo Ring and enter the Communication Redundancy page to enable “Ring Coupling.” Select one port as “coupling port” and then connect any port of the opposing EDS (e.g., Switch C) in the adjacent Turbo Ring. Select another port as “coupling control port,” and connect this port to any port of the adjacent EDS (e.g., Switch B) in the same Turbo Ring.

The “Coupler” switch (Switch A above) will monitor switch B’s order from the “coupling control port” to decide if the coupling port’s backup path should be recovered.

The user only needs to enable the “Ring Coupling” function in one EDS (not on the opposing EDS or adjacent EDS).

Redundant Ports, Coupling Port and Coupling Control Port should be configured as among four individual port.

NOTE Ring Coupling and Ring Master do not need to be set up on the same EDS.

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