User’s Manual of NS2503-24P/2C
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8. POWER OVER ETHERNET OVERVIEW................................................................. 198
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What is PoE? ......................................................................................................................................... 198
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The PoE Provision Process ................................................................................................................. 199
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Stages of powering up a PoE link..................................................................................................... 200
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Line Detection................................................................................................................................... 200
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Classification..................................................................................................................................... 200
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Start-up ............................................................................................................................................. 200
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Operation .......................................................................................................................................... 200
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Power Disconnection Scenarios....................................................................................................... 200
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9. TROUBLE SHOOTING............................................................................................. 202
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APPENDIX A—RJ-45 PIN ASSIGNMENT ................................................................... 203
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A.1 Switch's RJ-45 Pin Assignments .................................................................................................. 203
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A.2 10/100Mbps, 10/100Base-TX.......................................................................................................... 203
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APPENDIX B: LOCAL USER ACCESS LEVEL TABLE ............................................. 205