Clear-Com HX System Frames - Manual (Page 90)

Figure 29: Ring topology; Dual card set redundancy
Loss of single fiber connection
If a single fiber connection is lost on one ring and the other ring is intact then the active ring
always attempts to heal itself by reversing the direction of data flow to bypass the failed
connection. The self healing mechanism is performed autonomously by the fiber linking card.
If the extent of the failure is such that the active ring is unable to heal itself the system will
switch to the secondary ring. Switching to the secondary ring will cause audio breaks or
disturbances and temporary loss of crosspoint data.
The self healing mechanism is performed automatically by the fiber linking card whereas the
switch-over between redundant cards and rings requires software or operator intervention.
Loss of a single node
If a node is lost on one ring due to a single fiber-optic linking card set failure and the fiber-
optic linking card set for the other ring is healthy and the other ring is intact then the active
ring always attempts to heal itself.
90 Eclipse HX-Omega User Guide