Upgrading to S7800 PMF CRUs

10 Replace one PMF CRU by using the OSM action or guided replacement
procedure.
When the procedure prompts you to physically replace the PMF CRU, a
help button appears that enables you to access detailed instructions.
Caution: Verify the daughter board connectors on the PMF CRU are
fully seated before installing the CRU. See Tech Bulletin TB20051B.
11 Verify that the PMF CRU is operational, and then immediately replace the
other PMF CRU in the same enclosure by using another OSM action or
guided replacement session.