170
Upgrade and Maintenance Manual
BX900
S2
Midplane
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66
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1.
fm
Ê
If applicable, remove SFP transceiver modules from the connection blade as
described in section
"Removing an SFP+ transceiver module" on page 133
.
Ê
Remove all connection blades from the system unit as described in section
"Removing single-width connection blades" on page 115
and
"Removing
double-width connection blades" on page 123
.
Ê
Remove the PSUs and fan modules from the system unit as described in
sections
"Removing the power supply unit" on page 96
and
"Removing the
fan unit" on page 102
.
Ê
Remove the management blades. This is done in the same way as
described in section
"Removing single-width connection blades" on
page 115
.
12.2.3 Removing the rear chassis
Figure 66: Loosening the fixing screws of the rear chassis
Ê
Loosen the fixing screws that fasten the rear chassis to the system unit.