Enterasys Networks 2G4072-52 10BASE-T Network, 100BASE-TX Network, 1000BASE-SX/SX+/LX Network

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10BASE-T Network

For details about the commands involved with configuring the Link Aggregation function, refer to the Enterasys Matrix N Standalone Series Configuration Guide.

10BASE-T Network

When connecting a 10BASE‐T segment to any RJ45 front panel ports of the 2G4072‐52, ensure that the network meets the Ethernet network requirements of the IEEE 802.3‐2002 standard for 10BASE‐T. Refer to the Cabling Guide for details.

Note: If a port operates at 100 Mbps, Category 5 cabling must be used. Category 3 cabling does not meet 100 Mbps specifications. For 10 Mbps operations only, Category 3 or Category 5 cabling can be used.

100BASE-TX Network

The RJ45 front panel ports provide a connection that supports Category 5 UTP cabling. The device at the other end of the twisted pair segment must meet IEEE 802.3‐2002 100BASE‐TX Fast Ethernet network requirements for the devices to operate at 100 Mbps. Refer to the Cabling Guide for details.

Note: The RJ45 ports support Category 5 UTP cabling with an impedance between 85 and 111 ohms for 100 Mbps operation.

The 2G4072-52 is capable of operating at either 10 or 100 Mbps. It automatically senses the speed of the connected device and adjusts its speed accordingly.

1000BASE-SX/SX+/LX Network

The four Mini‐GBICs provide Gigabit Ethernet fiber‐optic connections operating at 1000 Mbps (1 Gbps). Other Mini‐GBICs may support different types of cabling connections. The device at the other end of the fiber‐optic connection must meet IEEE 802.3‐2002 Gigabit Ethernet requirements for the devices to operate at Gigabit speed. Refer to Appendix A for Mini‐GBIC specifications.

1000BASE-T Network

The 2G4072‐52’s 48 ports support 10/100/1000 Mbps through RJ45 front panel connectors. These links accommodate copper wire connections that can operate up to 1000 Mbps. The device at the other end of the twisted pair segment must meet IEEE 802.3‐2002 10/100/1000BASE‐T network requirements for the devices to operate at Gigabit speed.

Note: The 48 ports of the device support Category 5 UTP cabling with an impedance between 85 and 111 ohms for 100 and 1000 Mbps operation.

Ports 1 through 48 can operate at either 10, 100, or 1000 Mbps. The device automatically senses the speed of the connected device and adjusts its speed accordingly.

2-2 Network Requirements

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Contents Enterasys Matrix Page Page Industry Canada Notice Product SafetyFederal Communications Commission FCC Notice Class a ITE Notice Clase A. Aviso de ITEElektro- magnetische Kompatibilität EMC Electromagnetic Compatibility EMCCompatibilidad Electromágnetica EMC Hazardous SubstancesSupplement to Product Instructions Vcci Notice Bsmi EMC Statement TaiwanSafety Information Class 1 Laser Transceivers Declaration of ConformityEnterasys NETWORKS, INC. Firmware License Agreement Viii Page Page Contents Index TroubleshootingAppendix a Specifications Figures TablesXiv Important Notice PrefaceWho Should Use This Guide For Refer to Structure of This GuideRelated Documents Document Conventions This guide uses the following conventionsGetting Help Support@enterasys.comIntroduction Connectivity Switch Configuration Using WebView2G4072-52 Management Standards Compatibility Lanview Diagnostic LEDs Switch Configuration Using CLI Commands Lanview Diagnostic LEDs Introduction Network Requirements Link Aggregation1000BASE-SX/SX+/LX Network 10BASE-T Network100BASE-TX Network 1000BASE-T NetworkInstallation Unpacking the 2G4072-52Contents of 2G4072-52 Rack MountingAttaching Rack-mount Ears to Enterasys Matrix N SA 2G4072-52 Connecting Power Connecting PowerConnecting to the Network Connecting UTP CablesRX 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 Connecting to an IBM PC or Compatible Device Connecting to the COM Port for Local ManagementWhat Is Needed Parameter SettingConnecting to a VT Series Terminal 12 Connecting an IBM PC or CompatibleConnecting to a Modem 13 Connecting a VT Series Terminal14 Connecting to a Modem VT Series Port Adapter Wiring and Signal Diagram RJ45 DB25 Adapter Wiring and Signal AssignmentsCOM Port Adapter Wiring and Signal Diagram RJ45 Modem Port Adapter Wiring and Signal Diagram RJ45 DB25 Completing the InstallationLog-In Using a Console Port Connection Completing the Installation 15 Matrix Startup Screen Example N7 Chassis Viewing the Receive and Transmit Activity TroubleshootingUsing Lanview LED Color State Recommended ActionAlternating 67% on, 33% off Troubleshooting Checklist Refer to the Enterasys Matrix N Standalone SeriesProblem Possible Cause Recommended Action Overview of Shutdown ProcedureTroubleshooting Checklist Recommended Shutdown Procedure Using Reset Button Last Resort Shutdown Procedure Using Reset ButtonTable A-1 Specifications ItemSpecification Specifications2G4072-52 Specifications 2G4072-52 PortsProcessors/Memory Mini-GBIC Input/Output SpecificationsTable A-2 Mini-GBIC Input/Output Port Specifications PhysicalMGBIC-LC03 Specifications 1000BASE-SX Gigabit Ethernet SpecificationsMGBIC-LC01 / MGBIC-MT01 Specifications 1000BASE-SX MGBIC-LC09 Specifications 1000BASE-LX Table A-7 MGBIC-08 Optical Specifications MGBIC-08 Specifications 1000BASE-ELXMGBIC-02 Specifications 1000BASE-T Table A-9 MGBIC-02 SpecificationsRegulatory Compliance Table A-3 COM Port Pin Assignments Signal Name Input/OutputCOM Port Pinout Assignments Table A-4 Compliance Standards Regulatory ComplianceMode Switch Bank Settings and Optional Installations Setting the Mode Switches Required ToolsFigure B-1 Mode Switch Location Memory Locations and Replacement Procedures Location of Dimm and Dram Simm Memory ModulesDimm Replacement Procedure Removing the DimmInstalling the Dimm Figure B-4 Installing the DimmRemoving the Dram Simm Figure B-5 Removing Chassis CoverInstalling the Dram Simm Figure B-6 Dram Simm Connector LocationFigure B-7 Installing the Dram Simm Page Index NumericsPinout assignments console port A-6