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Table of Contents
1 Product Overview ······································································································································1-1
Introduction ·············································································································································1-1
3Com Baseline Switch 2920-SFP Plus···································································································1-3
Front Panel ······································································································································1-3
Rear Panel·······································································································································1-3
Power Supply System ·····················································································································1-3
Cooling System ·······························································································································1-3
3Com Baseline Switch 2928-SFP Plus···································································································1-4
Front Panel ······································································································································1-4
Rear Panel·······································································································································1-4
Power Supply System ·····················································································································1-4
Cooling System ·······························································································································1-4
3Com Baseline Switch 2952-SFP Plus···································································································1-5
Front Panel ······································································································································1-5
Rear Panel·······································································································································1-5
Power Supply System ·····················································································································1-5
Cooling System ·······························································································································1-5
3Com Baseline Switch 2928-PWR Plus ·································································································1-6
Front Panel ······································································································································1-6
Rear Panel·······································································································································1-6
Power Supply System ·····················································································································1-6
Cooling System ·······························································································································1-6
3Com Baseline Switch 2928-HPWR Plus·······························································································1-7
Front Panel ······································································································································1-7
Rear Panel·······································································································································1-7
Power Supply System ·····················································································································1-7
Cooling System ·······························································································································1-8
Ports························································································································································1-8
Console Port····································································································································1-8
10/100/1000Base-T Ethernet Port···································································································1-8
1000Base-X SFP Interface··············································································································1-9
LEDs······················································································································································1-10
Power LED ····································································································································1-10
RPS Status LED ····························································································································1-10
Port Mode LED······························································································································1-11
10/100/1000Base-T Auto-Sensing Ethernet Port Status LED·······················································1-11
1000Base-X SFP Interface Status LED ························································································1-13
2 Installation Preparations···························································································································2-1
Safety Precautions··································································································································2-1
Installation Site········································································································································2-1
Temperature/Humidity·····················································································································2-1
Cleanness········································································································································2-1
Electromagnetic Susceptibility·········································································································2-2