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following diagram for the case of a redundant UOC rack with two
UOC CPMs connecting to two, 4-I/O slot, non-redundant racks, each
with its own EPM. Also shown are the CPM’s connection of ETH1 to
the A, Yellow FTE network tree and ETH2 to the B, Green FTE network
tree.
Downlink I/O Network
Considerations for components that connect to a UOC’s downlink
HSR ring network are summarized in the following table.
Component
Type
Comments
ControlEdge
UOC CPM
The UOC CPM must be connected to the downlink I/O ring such that
even numbered ports always connect to odd numbered ports.
Important properties of UOC CPM communications on the downlink
network are configured on the UOC Platform Block in Control Builder.
This includes configuration of the UOC DHCP server for assigning
EPM IP addresses. It also includes setting the Downlink Network
Configuration to Ring-HSR.
ControlEdge
900 I/O
Racks with
An EPM must be connected to the downlink I/O ring such that even
numbered ports always connect to odd numbered ports. Before it is
inserted into its slot, the 100X rotary switch on the EPM board must
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