Nortel Networks 70 Series manual Checking the Diagnostic Displays

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Installation and Reference for the BayStack 70 Series 10/100 Ethernet Switches

Checking the Diagnostic Displays

Figure 3-2 illustrates the LED indicators on theBayStack 70-24T 10/100 Ethernet Switch. LEDs on the BayStack 70-8T 10/100 Ethernet Switch and BayStack

70-16T 10/100 Ethernet Switch are identical, although there are only as many LEDs as are required for the ports on each model.

70-24T Switch

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9316EA

Figure 3-2. BayStack 70-24T 10/100 Ethernet Switch LED Display

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Contents Installation and Reference for Copyright 1999 Nortel Networks Iii Restricted Rights Legend Statement of ConditionsNortel Networks NA Inc. Software License Agreement 206375-A Contents Chapter Troubleshooting Figures 206375-A Tables Xii Preface PurposeAudience Hard-Copy Technical ManualsHow to Get Help Technical Solutions Center Telephone NumberPage BayStack 70 Series 10/100 Ethernet Switches Overview Chapter IntroductionPhysical Description Front PanelFront Panel of the BayStack 70-8T 10/100 Ethernet Switch RJ-45 10BASE-T/100BASE-TX Ethernet Ports LEDs Description of Switch and Port Status LEDs Type Label Color Activity DescriptionRear Panel of the BayStack 70-24T 10/100 Ethernet Switch DC Power Adapter Model MAC Addresses in Information Table FeaturesMAC Address Quantities Buffer Sizes Model Buffer SizeExternal Power Adapters Model External Power AdapterPage Chapter Network Configuration Benefits of Using Switching TechnologyTypes of Ethernet Switches Desktop Switching BeforeSegment Switching Before After Extending a Network Bridging from 10BASE-T to 100BASE-TX Networks Bridging 10 Mb/s Networks to 100 Mb/s NetworksPower Workgroups Power Workgroup ConnectionsChapter Installation Package ContentsPower Specifications Operating EnvironmentInstalling the Switch Set the switch on a desktop or any other flat surfaceAttach any additional devices to the ports in your switch Connecting Devices to the Switch Installing the Switch in a RackConnecting Power Verifying Installation Checking the Diagnostic Displays BayStack 70-24T 10/100 Ethernet Switch LED DisplayDescription of Switch and Port Status LEDs Page Chapter Troubleshooting Using the LED DisplayPage Table A-1 Technical Specifications Appendix a Technical SpecificationsProduct Specifications Electromagnetic Emissions Physical SpecificationsEnvironmental Specifications Electromagnetic Susceptibility Safety Agency ApprovalsPerformance Specifications Page Appendix B Cables and Connectors Table B-1 RJ-45 Connector Pin Assignments10BASE-T/100BASE-TX UTP Cable RJ-45Straight-Through and Crossover Cables Figure B-1. Straight-Through Twisted-Pair CableIndex NumbersIndex-2