Nortel Networks 70 Series manual Physical Description, Front Panel

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

The BayStack 70 Series 10/100 Ethernet Switches can be used to segment a

10 Mb/s or 100 Mb/s network to enhance the capacity of the network to support advanced applications. The switch provides a link between traditional 10 Mb/s networks and faster 100 Mb/s networks. By installing a 10/100 autosensing switch, a user can connect any 10 Mb/s or 100 Mb/s device to the switch without being concerned about the transmission speed of the device. One of the many benefits provided by the BayStack 70 Series 10/100 Ethernet Switches is that network users can migrate from 10 Mb/s switching to 100 Mb/s switching using a single product.

Physical Description

Each BayStack 70 Series 10/100 Ethernet Switches is housed in a sturdy enclosure with a slim profile that makes it usable as a desktop unit. In addition, the BayStack 70-24T 10/100 Ethernet Switch can be mounted in a standard 19-inch equipment rack, depending on the amount of connections your network requires.

The following sections provide physical descriptions of the switches and an overview of the components on the front and rear panels.

Front Panel

The front panel of each switch contains:

RJ-45 10BASE-T/100BASE-TX Ethernet ports

One Power LED

One 10/100 Link/Activity LED per port

One half-duplex (HDX) / full-duplex (FDX) LED per port

MDI/MDI-X push button to set port 1 to uplink (MDI) mode

Figure 1-1, Figure 1-2, and Figure 1-3 illustrate the front panel of the BayStack 70-8T 10/100 Ethernet Switch, BayStack 70-16T 10/100 Ethernet Switch, and BayStack 70-24T 10/100 Ethernet Switch, respectively.

1-2

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 10BASE-T/100BASE-TX UTP Cable Appendix B Cables and ConnectorsTable B-1 RJ-45 Connector Pin Assignments RJ-45Straight-Through and Crossover Cables Figure B-1. Straight-Through Twisted-Pair CableIndex NumbersIndex-2