Avaya M770 - Manual (Page 25)

Avaya M770 User’s Guide 15
Chapter 4
Replacing Components
The power supply units, supervisor modules, fans and backplanes are field
replaceable. All those components except the backplanes are hot-swappable, so that
the hub can remain operational while you are replacing them. You will need to
disassemble the Avaya M770 completely to replace the backplanes.
Figure 4.1 Replacing an M-PS, M-SPV/M-SPX or a Fan