Replacing Power Supply Units
Example
A pair of PSU/7HU-ACunits with hardware revision 2.01 is being replaced with a pair of PSU/7HU-AC-HP units with hardware revision 2.01.
1 Select which PSU/7HU-AC to remove first. In this example, we will start with Slot 19/20. This is represented in Table 110 on p.735 with blue background. The other
PSU/7HU-ACin Slot 1/2 is represented by green background. From Table 110 on p.735, the required power state for the PSU/7HU-AC unit to be removed is "Not
Powered" (blue background). Hence power OFF the PSU, then remove it from the shelf.
2 From Table 110 on p.735, insertion of a PSU/7HU-AC-HP into Slot 19/20 (previously occupied by the PSU/7HU-AC) requires a power state upon insertion of “Not
Powered” (blue background). Hence power OFFthis PSU, then insert it into Slot 19/20.
3 From Table 111 on p.736, removal of the remaining PSU/7HU-AC from Slot 1/2 requires a power state of “Powered” (blue background). Hence power ON this PSU,
then remove it from the shelf.
4 From Table 111 on p.736, insertion of the last PSU/7HU-AC-HP into Slot 1/2 (previously occupied by the PSU/7HU-AC) requires a power state upon insertion of “Not
Powered” (blue background). Hence power OFF this PSU, then insert it into Slot 1/2.
734 FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A
To Next Page
