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.

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Contents 3Com Switch Power Over Ethernet United States Government Legend 3Com Corporation Campus Drive Marlborough, MA USAContents Contents Introduction PoE Power Rack Rear View Architecture and Configurations Introduction PoE Power Rack Power SupplySystem Description OverviewVisual indicators Power Supply ModuleSystem Controller Descriptions, colors, and functions are shown in TablePin Definition RS485 and RS232 signals are described in and TableRefer to Figure Distribution PanelSafety Safety StatementsSafety Symbols Safety Introduction Installation and TestingGuidelines EMI ConsiderationsNumber Model Ports Type Disconnect Detection Module Technical SpecificationsRemoving Power Supply Module and Dummy Faceplate Frame Grounding Powering on the Device Installation and Testing Maintenance ENGINEERING, Maintenance TroubleshootingTroubleshooting LED IndicationENGINEERING, Maintenance and Troubleshooting