Dual Card Set Redundancy - ClearCom Eclipse HX-Median User Manual

The self-healing mechanism is performed automatically by the Fiber Linking Card.
Switching to the secondary ring will cause audio breaks or disturbances and temporary loss
of crosspoint data.
If a single fiber connection is lost on both rings the nodes adjacent to the failures will loop-
back their connections to the failed cables healing the rings. In the state the fiber audio will
therefore be routed utilizing both the primary and secondary fiber rings.
Note: The Eclipse HX configuration software (EHX) will report any failures in the fiber connection
system.
7.4.1.2
If a node is lost on the ring the nodes adjacent to the failed node will loop-back their
connections to the failed node healing the ring using the working remains of the ring. The
configuration software (EHX) will report the failure.
This applies to the situation where the fiber card itself has failed rather than the matrix.
7.4.1.3
If two adjacent fiber connections are lost on the ring, this will be handled as for the loss of a
single node where the nodes adjacent to the failed node will loop-back their connections to
the failed node healing the ring.
The configuration software will report the failure correctly as two failed cables. If two non-
adjacent fiber connections are lost on the ring the nodes adjacent to the failures will loop-
back their connections to the failed cables healing the ring into 2 separate smaller rings. The
configuration software will report the failure.
Note: In this instance the two sub-rings will be dependent on their Ethernet connections for
configuration and data transmission but there will be no audio path between them.
7.4.1.4
If two adjacent nodes are lost on the ring this will be handled as for the loss of a single node
where the nodes adjacent to the failed node will loop-back their connections to the failed
nodes healing the ring. The configuration software will report the failure correctly as two
failed nodes.
If two non-adjacent nodes are lost on the ring the nodes adjacent to the failures will loop-
back their connections to the failed nodes healing the ring into 2 separate smaller rings. The
configuration software will report the failure.
7.4.2

Dual card set redundancy

The fiber linking function supports Dual card set redundancy. Both Card set A and Card set
B are fitted in each node of the ring. In this case each matrix contains two Fiber-optic
Linking card sets.
This approach affords full redundancy, offering protection against component failure within a
single Fiber-optic Linking Card Set.
Note: In the absence of an Uninterrupted Power Supply this configuration will not protect against
loss of the node or Matrix Frame itself.
82 Eclipse HX-Median User Guide
Loss of a single node
Loss of two fiber connections
Loss of two nodes