User ManualTable of ContentsContents5Introducing the Switch9Front of the Switch11Network Ports11LEDs12Port LEDs14LED Mode Select Button and Indicator LEDs15Reset Button16Clear Button16Console Port16Back of the Switch17Power Connector17Switch Features18Save Power Mode19Installing the Switch21Included Parts21Installation Precautions23Installation Procedures241. Prepare the Installation Site252. Verify the Switch Passes Self Test26LED Behavior283. Mount the Switch28Rack or Cabinet Mounting28Rack Mounting the Switch 2520G-24-PoE29Rack Mounting the Switch 2520G-8-PoE31Wall or Under-Table Mounting33Horizontal Surface Mounting34Using a Kensington Security Cable354. Connect the Switch to a Power Source355. Connect the Network Cables37Using the RJ-45 Connectors376. Installing or Removing mini-GBICs38Installing the mini-GBICs:38Removing the mini-GBICs39Connecting Cables to mini-GBICs397. (Optional) Connect a Console to the Switch40Terminal Configuration40Direct Console Access41Sample Network Topologies42As a Desktop Switch Implementing PoE42As a Segment Switch Implementing PoE43Stacking the Switch45Configuring the Switch47Recommended Minimal Configuration47Using the Console Setup Screen48Where to Go From Here49Using the IP Address for Remote Switch Management51Starting a Telnet Session51Starting a Web Browser Session51Troubleshooting53Basic Troubleshooting Tips53Diagnosing with the LEDs56LED patterns for General Switch Troubleshooting56LED Patterns for PoE Troubleshooting60Proactive Networking61Hardware Diagnostic Tests62Testing the Switch by Resetting It62Checking the Switch LEDs62Checking Console Messages62Testing Twisted-Pair Cabling63Testing Switch-to-Device Network Communications63Testing End-to-End Network Communications63Restoring the Factory Default Configuration64Downloading New Switch Software65HP Customer Support Services65Before Calling Support65Specifications67Switch Specifications67Physical67Electrical67Environmental67BTU Ratings68Acoustics68Safety68Standards69Cabling and Technology Information Specifications70Technology Distance Specifications71Mode Conditioning Patch Cord72Installing the Patch Cord72Twisted-Pair Cable/Connector Pin-Outs74Straight-through Twisted-Pair Cable for 10 Mbps or 100 Mbps Network Connections76Cable Diagram76Pin Assignments76Crossover Twisted-Pair Cable for 10 Mbps or 100 Mbps Network Connection77Cable Diagram77Pin Assignments77Straight-Through Twisted-Pair Cable for 1000 Mbps Network Connections78Cable Diagram78Pin Assignments78Safety and EMC Regulatory Statements79Safety Information79Informations concernant la sécurité80Hinweise zur Sicherheit81Considerazioni sulla sicurezza82Consideraciones sobre seguridad83Safety Information (Japan)84Safety Information (China)85EMC Regulatory Statements86U.S.A.86Canada86Australia/New Zealand86Japan86Korea87Taiwan87European Community88Recycle Statements91Waste Electrical and Electronic Equipment (WEEE) Statements91Index95Size: 2.87 MBPages: 101Language: EnglishOpen manual