Enterasys Networks 2G4072-52 manual Connecting to the Network, Connecting UTP Cables

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Connecting to the Network

Connecting to the Network

This section provides the procedures for connecting unshielded twisted pair (UTP) segments from the network or other devices to the 2G4072‐52. For connections to Mini‐ GBIC ports, refer to page 3‐9.

Note: If the Enterasys Matrix N SA 2G4072-52 is being installed in a network using Link Aggregation, there are rules concerning the network cable and port configurations that must be followed for Link Aggregation to operate properly. Before connecting the cables, refer to the Enterasys Matrix N Standalone Series Configuration Guide for the configuration information. For details on how to obtain manuals, refer to “Related

Documents” on page xvi.

Connecting UTP Cables

The fixed RJ45 front panel connections of the 2G4072‐52 are 10/100/1000 Mbps ports. They have internal crossovers and support automatic‐polarity sensing which eliminates the need for a crossover cable, regardless if the connection is to another network device or a workstation.

Note: All RJ45 front panel ports on the 2G4072-52 support Category 5 Unshielded

Twisted Pair (UTP) cabling with an impedance between 85 and 111 ohms. You can use

Category 3 cable only for 10 Mbps connections.

In this procedure, the 2G4072‐52 is used as the example to connect a twisted pair segment to the device, as shown in Figure 3‐4.

1.Ensure that the device connected to the other end of the segment is powered ON.

2.Connect the twisted pair segment to the device by inserting the RJ45 connector on the twisted pair segment into the appropriate RJ45 port connector.

N Standalone Series Installation Guide 3-5

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Contents Enterasys Matrix Page Page Class a ITE Notice Clase A. Aviso de ITE Product SafetyFederal Communications Commission FCC Notice Industry Canada NoticeHazardous Substances Electromagnetic Compatibility EMCCompatibilidad Electromágnetica EMC Elektro- magnetische Kompatibilität EMCSupplement to Product Instructions Bsmi EMC Statement Taiwan Vcci NoticeDeclaration of Conformity Safety Information Class 1 Laser TransceiversEnterasys NETWORKS, INC. Firmware License Agreement Viii Page Page Contents Appendix a Specifications TroubleshootingIndex Tables FiguresXiv Who Should Use This Guide PrefaceImportant Notice Related Documents Structure of This GuideFor Refer to This guide uses the following conventions Document ConventionsSupport@enterasys.com Getting HelpIntroduction Management Switch Configuration Using WebView2G4072-52 ConnectivitySwitch Configuration Using CLI Commands Lanview Diagnostic LEDsStandards Compatibility Lanview Diagnostic LEDs Introduction Link Aggregation Network Requirements1000BASE-T Network 10BASE-T Network100BASE-TX Network 1000BASE-SX/SX+/LX NetworkUnpacking the 2G4072-52 Installation Rack Mounting Contents of 2G4072-52Attaching Rack-mount Ears to Enterasys Matrix N SA 2G4072-52 Connecting Power Connecting PowerConnecting UTP Cables Connecting to the NetworkRX TX Crossover Four-Wire Cable RJ45 Pinouts Eight-Wire Crossover Cable RJ45 Pinouts Connecting Fiber-Optic Cables to Mini-GBICs 2G4072-52 2G4072-52 ÃÄÀ Parameter Setting Connecting to the COM Port for Local ManagementWhat Is Needed Connecting to an IBM PC or Compatible Device12 Connecting an IBM PC or Compatible Connecting to a VT Series Terminal13 Connecting a VT Series Terminal Connecting to a Modem14 Connecting to a Modem COM Port Adapter Wiring and Signal Diagram RJ45 Adapter Wiring and Signal AssignmentsVT Series Port Adapter Wiring and Signal Diagram RJ45 DB25 Log-In Using a Console Port Connection Completing the InstallationModem Port Adapter Wiring and Signal Diagram RJ45 DB25 Completing the Installation 15 Matrix Startup Screen Example N7 Chassis Using Lanview TroubleshootingViewing the Receive and Transmit Activity Color State Recommended Action LEDAlternating 67% on, 33% off Refer to the Enterasys Matrix N Standalone Series Troubleshooting ChecklistTroubleshooting Checklist Overview of Shutdown ProcedureProblem Possible Cause Recommended Action Last Resort Shutdown Procedure Using Reset Button Recommended Shutdown Procedure Using Reset Button2G4072-52 Ports Specifications2G4072-52 Specifications Table A-1 Specifications ItemSpecificationPhysical Mini-GBIC Input/Output SpecificationsTable A-2 Mini-GBIC Input/Output Port Specifications Processors/MemoryMGBIC-LC01 / MGBIC-MT01 Specifications 1000BASE-SX Gigabit Ethernet SpecificationsMGBIC-LC03 Specifications 1000BASE-SX MGBIC-LC09 Specifications 1000BASE-LX Table A-9 MGBIC-02 Specifications MGBIC-08 Specifications 1000BASE-ELXMGBIC-02 Specifications 1000BASE-T Table A-7 MGBIC-08 Optical SpecificationsTable A-4 Compliance Standards Regulatory Compliance Table A-3 COM Port Pin Assignments Signal Name Input/OutputCOM Port Pinout Assignments Regulatory ComplianceMode Switch Bank Settings and Optional Installations Required Tools Setting the Mode SwitchesFigure B-1 Mode Switch Location Location of Dimm and Dram Simm Memory Modules Memory Locations and Replacement ProceduresRemoving the Dimm Dimm Replacement ProcedureFigure B-4 Installing the Dimm Installing the DimmFigure B-5 Removing Chassis Cover Removing the Dram SimmFigure B-6 Dram Simm Connector Location Installing the Dram SimmFigure B-7 Installing the Dram Simm Page Numerics IndexPinout assignments console port A-6