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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
22
8. POWER OVER ETHERNET OVERVIEW .......................................................................... 675
What is PoE?...................................................................................................................................................675
The PoE Provision Process...........................................................................................................................677
Stages of powering up a PoE link........................................................................................................................677
Line Detection.............................................................................................................................................................677
Classification ..............................................................................................................................................................678
Start-up.......................................................................................................................................................................678
Operation....................................................................................................................................................................678
Power Disconnection Scenarios.................................................................................................................................678
9. TROUBLE SHOOTING...................................................................................................... 680
APPENDEX A ........................................................................................................................ 681
A.1 Switch's RJ-45 Pin Assignments ...........................................................................................................681
A.2 10/100Mbps, 10/100Base-TX...................................................................................................................681
APPENDEX B : GLOSSARY................................................................................................. 683