Instruction manual

ECLIPSE OMEGA MATRIX INSTRUCTION MANUAL
3-9
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. 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.
If the extent of the failure is such that the active ring is unable to heal itself the
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 autonomously by the fiber linking card
whereas the switch-over between redundant cards and rings requires software or
operator intervention.
If a single node is lost on both rings due to multiple fiber-optic linking card set
failures etc the nodes adjacent to the failed node(s) will loop-back their
connections to the failed node(s) healing the rings and the most intact ring will
be used. The configuration software will report the failure.
Loss of Two Fiber Connections
f 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 that 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.
Switching to the secondary ring will cause audio breaks or disturbances and
temporary loss of crosspoint data. The self healing mechanism is performed
autonomously by the fiber Linking Card whereas the switch-over between
redundant cards and rings requires software or operator intervention.
If two adjacent fiber connections are lost on one ring and the other ring has a
similar failure 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 one ring and
the other ring has a similar fault 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.