![background image](http://html1.mh-extra.com/html/nec/express-5800/express-5800_maintenance-manual_3938097020.webp)
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5. Appendix
5.1 Chassis Structure
Intelligent Switch
L2
Intelligent Switch
L2
CPU Blade
CPU Blade
CPU Blade
CPU Blade
CPU Blade
CPU Blade
Additional power
supply unit
Additional power
supply unit
Additional power
supply unit
S
tandard powe
r
supply unit
HDD Unit
HDD Unit
HDD Unit
HDD Unit
HDD Unit
HDD Unit
HDD Unit
HDD Unit
HDD Unit
HDD Unit
HDD Unit
HDD Unit
A redundant power supply system (1 + (1 to 3)) can be configured.
The power supply units are hot-swappable.