3Com 8800 manual System Description, Overview, Power Supply, Modules, PoE Power Rack

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SYSTEM DESCRIPTION

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	DC power is supplied to the power bus by the power supply modules.
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.