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3Com 8800 manual Troubleshooting Guide, Engineering, Maintenance And Troubleshooting

Models: 8800

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22CHAPTER 5: ENGINEERING, MAINTENANCE AND TROUBLESHOOTING

Table 6 Troubleshooting Guide

Controller alarm	Power supply
Controller alarm	module
status	display	Possible problems	Possible solution

ALM or None	--	Controller failure	Replace the
			controller

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3Com 8800 manual Troubleshooting Guide, Engineering, Maintenance And Troubleshooting

Contents

3Com Switch Power Over Ethernet Installation GuideEnd of Life Statement UNITED STATES GOVERNMENT LEGENDENVIRONMENTAL STATEMENT Regulated Materials Statement4 INSTALLATION AND TESTING CONTENTS3 SAFETY 5 ENGINEERING, MAINTENANCE AND TROUBLESHOOTING4 CONTENTS Features Switch 8800 PoEPower Rack ConfigurationsSystem controller with 2 LEDs and 3 connectors Architecture and Configurations 8 CHAPTER 1 INTRODUCTION SYSTEM DESCRIPTION Power SupplyPoE Power Rack OverviewSystem Controller Power Supply ModuleVisual indicators Figure 5 Power Supply Module Front PanelThe RS485 and RS232 signals are described in Table 3 and Table Distribution Panel and Safety Symbols SAFETYSafety Statements Warning StatementsExercise care when servicing this area Guidelines INSTALLATION AND TESTINGIntroduction EMI ConsiderationsModule Technical Specifications Install the PoE DIMM ModuleFigure 8 Removing Power Supply Module and Dummy Faceplate module. Refer to Figure Powering on the Device 20 CHAPTER 4 INSTALLATION AND TESTING Troubleshooting ENGINEERING, MAINTENANCE AND 5 TROUBLESHOOTINGMaintenance and LED IndicationTable 6 Troubleshooting Guide 22 CHAPTER 5 ENGINEERING, MAINTENANCE AND TROUBLESHOOTING