2
Remove the Old PSU
To remove either the right or left PSU you must first remove all Input and Output cards from slots A–M.
To remove a Stage 64 PSU:
1
Identify which PSU (left or right, while facing the back of the unit) you will be replacing.
2
Starting at the far right and working to your left, disconnect ribbon cables from all I/O cards.
Figure 3. Input and Output Slots, and PSUs
Figure 4. Ribbon cables disconnected from all I/O cards
Right PSU
Left PSU
Input slots A–H
Output slots J–M
