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ST950 Plus+ User Manual
ST950 Plus+ User Manual
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667/HE/53000/000
Issue 2
Unrestricted
9.4.6
Replacement of CPU Card
In case of failure, the CPU Card should be replaced. The Licence card and Heart of the controller
(SD card) should be moved to the new card to preserve the junction configuration and facilities.
Replacement CPU Card
Only replace a CPU card with a compatible variant: 667/1/46010/101
Replacement CPU Card : IP Configuration
Before re-connecting the Ethernet connector ensure that the new CPU card has the IP
configuration set correctly. Failure to do this may result in network disruption that can affect
other network devices.
When replacing a CPU card, it is possible to clone the running system, from the CPU card being
replaced, onto the new CPU card, using the Heart of the Controller. The steps to perform this are
described in this section.
Cloning and Restoration of a CPU Heart
When restoration from Heart is being performed, to clone a system onto a replacement CPU
card, it is important that the Ethernet cable, if used, is not connected to the replacement CPU
card, until the restore from Heart operation is complete. This is to avoid conflicting network
issues due to prior and incompatible network configurations.
Move Heart to new CPU card
Take the CPU card being replaced and remove the SD card from the slot marked "HEART". Insert
this SD card into the replacement CPU card. To insert a card, align it with the socket with the
contacts facing PCB and closest to the socket, slide it into the socket and apply slight pressure until
it ‘clicks’. The card is now located correctly. The photos below show the correct orientation for the
card.
Note: It is important that the ca
rd is not write protected. The ‘lock’ switch must be in the position
shown in the diagram below: