3com 8800 Benutzerhandbuch

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S
YSTEM
 D
ESCRIPTION
Overview
Figure 4 shows the schematic diagram of the PoE Power Rack power system, 
showing the interconnections and signal flow through the power supply modules 
and internal components. 
Figure 4   Schematic Diagram of the PoE Power Rack
Power Supply 
Modules 
DC power is supplied to the power bus by the power supply modules. 
The PoE Power Supply Module is interchangeable between the Switch Rack and the 
Switch 8800 PoE Power Rack. NO other components are interchangeable. 
PoE Power Rack
Up to three power supply modules can be mounted in each PoE Power Rack. Each 
power supply module in the PoE Power Rack receives AC power from the AC 
distribution panel.