Xii | Nortel Networks 70 Series specification

xii

206375-A

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Nortel Networks 70 Series manual Xii

Contents

Installation and Reference for Copyright 1999 Nortel Networks Iii Restricted Rights Legend Statement of Conditions Nortel Networks NA Inc. Software License Agreement 206375-A Contents Chapter Troubleshooting Figures 206375-A Tables Xii Preface Purpose Audience Hard-Copy Technical Manuals How to Get Help Technical Solutions Center Telephone NumberPage BayStack 70 Series 10/100 Ethernet Switches Overview Chapter Introduction Physical Description Front Panel Front 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 Description Rear Panel of the BayStack 70-24T 10/100 Ethernet Switch DC Power Adapter Features MAC Address QuantitiesModel MAC Addresses in Information Table Buffer Sizes Model Buffer Size External Power Adapters Model External Power AdapterPage Chapter Network Configuration Benefits of Using Switching Technology Types of Ethernet Switches Desktop Switching Before Segment Switching Before After Extending a Network Bridging from 10BASE-T to 100BASE-TX Networks Bridging 10 Mb/s Networks to 100 Mb/s Networks Power Workgroups Power Workgroup Connections Chapter Installation Package Contents Power Specifications Operating Environment Installing the Switch Set the switch on a desktop or any other flat surface Attach any additional devices to the ports in your switch Connecting Devices to the Switch Installing the Switch in a Rack Connecting Power Verifying Installation Checking the Diagnostic Displays BayStack 70-24T 10/100 Ethernet Switch LED Display Description of Switch and Port Status LEDs Page Chapter Troubleshooting Using the LED DisplayPage Appendix a Technical Specifications Product SpecificationsTable A-1 Technical Specifications Physical Specifications Environmental SpecificationsElectromagnetic Emissions Safety Agency Approvals Performance SpecificationsElectromagnetic Susceptibility Page Appendix B Cables and Connectors Table B-1 RJ-45 Connector Pin Assignments10BASE-T/100BASE-TX UTP Cable RJ-45 Straight-Through and Crossover Cables Figure B-1. Straight-Through Twisted-Pair Cable Index Numbers Index-2