Model 8234-EMA, 9117-MMA, 9119-FHA, 9125-F2A, 9406-MMA and attached expansion units, PCI adapters, and cassettes

You can remove, replace, or install PCI adapter cassettes.

Notes:

Models 9119-FHA and 9125-F2A should only be serviced by authorized service providers.
If you are installing a PCI adapter in an expansion unit that does not use cassettes, see the expansion-unit procedures in Expansion units that do not use cassettes. Expansion units that do not use cassettes
If you are installing feature code 3650 or 3651, you might find it difficult to insert and plug in the card assembly. If you encounter this problem see the topic Installing feature code 3650 or 3651 in the 9406-MMA.