Nortel Networks 70 Series manual DC Power Adapter

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

DC Power Adapter

The BayStack 70-8T 10/100 Ethernet Switch and BayStack 70-16T 10/100 Ethernet Switch are shipped with a power adapter and cord, as shown in Figure 1-7.

Power cord adapter

9331FA

Figure 1-7. DC Power Adapter

Warning: Use only the power adapter that was shipped with your switch to supply power to that switch. Read the amperage label on the power adapter to be sure it is the correct adapter for your switch.

Do not use the 8-port adapter (5 V DC/3 Amp) with a 16-port switch. Do not use the 16-port adapter (5 V DC/4 Amp) with an 8-port switch.

The BayStack 70-8T 10/100 Ethernet Switch is shipped with a 5 V DC/3 Amp power adapter. Be sure to use this 3 Amp adapter only with the 8-port switch.

The BayStack 70-16T 10/100 Ethernet Switch is shipped with a 5 V DC/4 Amp power adapter. Be sure to use this 4 Amp adapter only with the 16-port switch.

Cable Holder

A small plastic clip, or holder, can be screwed into the base of the switch to hold the power adapter cable in place. The hole for the cable holder is located on the bottom of the switch, near the DC power receptacle.

1-8

206375-A

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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 Features MAC Address QuantitiesModel MAC Addresses in Information Table 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 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-45Straight-Through and Crossover Cables Figure B-1. Straight-Through Twisted-Pair CableIndex NumbersIndex-2