Figure 4-2: CPU card DIP switches set for normal operation
Note: Store spare CPU cards in unused slots in the matrix or in electrically insulated
packaging such as anti-static heavy duty plastic bags.
To insert a CPU card in the matrix:
1) Carefully place the card in the appropriate slot. Make sure the card is
aligned with the left and right precision guides (the top of the CPU card
aligns with the left of the slot)
2) When the card has almost reached the backplane connectors, open the
two ejectors, allowing them to clear the edges of the matrix. Gently
insert the card further until it touches the backplane connector guides.
3) Gently close both ejector tabs at the same time, which will propel the
card into the backplane connectors.
To remove a CPU card from the matrix:
1) Hold the card in place in the matrix.
2) There are two card ejector tabs, located on the left and right of the
horizontally positioned CPU card. Open the two ejector tabs at the same
time until the card unseats from its backplane connectors.
3) Pull the card out of the matrix.
4.3.1 Hot patching CPU cards
The CPU cards are hot patchable and self initializing.
When the matrix is fitted with two CPU cards, a faulty CPU card can be removed
and replaced while the system is powered because the second CPU card will
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