Enterasys Networks 7G4285-49 Connecting UTP Cables to DFE Modules, Making the UTP Connections

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Connecting to the Network

Connecting UTP Cables to DFE Modules

The fixed RJ45 front panel connections of the 7G4285‐49 and 7G4205‐72 are 10/100/ 1000 Mbps ports. These ports have internal crossovers, and support automatic‐polarity sensing when configured for automatic‐negotiation.

If automatic‐negotiation is not activated on a port, use a straight‐through cable when connecting a workstation to the port. When connecting a networking device to the port, such as a bridge, repeater, or router, use a crossover cable.

If a port is set for auto‐negotiation, automatic‐polarity sensing is also activated. Automatic‐polarity sensing 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 these DFE modules support Category 5 Unshielded Twisted Pair (UTP) cabling with an impedance between 85 and 111 ohms. Category 3 cable may be used if the connection is going to be used only for 10 Mbps.

The RJ45 fixed front panel connectors of the 7G4285‐49 and 7G4205‐72 also support PoE‐compliant connections to PDs (powered devices) that require 48 Vdc through the UTP cable to operate. When the 48 Vdc is available through the backplane of an N5 chassis or externally from an N‐POE Power System, you can verify if there is power at each port as described later in this procedure.

Making the UTP Connections

Caution: To prevent damage to the equipment, do not connect the PoE supported ports (1 through 48 or 72) to segments running between buildings. Keep connections to equipment within the building.

Precaución: Para evitar que el equipo se dañe, no conecte los puertos PoE

(1 a 48 o 72) a segmentos que vayan de un edificio a otro. Mantenga las conexiones de los equipos dentro del edificio.

To connect and verify UTP cable connections to RJ45 ports (1 through 48 or 72), refer to Figure 3‐4 and proceed as follows:

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

2.Insert the RJ45 connector on the twisted pair segment into the appropriate RJ45 port connector.

DFE-Platinum Series Hardware Installation Guide 3-13

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Contents Enterasys Matrix Page Page Federal Communications Commission FCC Notice Product SafetyIndustry Canada Notice Class a ITE Notice Clase A. Aviso de ITECompatibilidad Electromágnetica EMC Electromagnetic Compatibility EMCElektro- magnetische Kompatibilität EMC Hazardous SubstancesSupplement 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 Figures Xiv Who Should Use This Guide About This GuideHow to Use This Guide Related DocumentsFor Refer to Following conventions are used in this guide Conventions Used in This GuideSupport@enterasys.com Getting HelpOverview of DFE-Platinum Series Module Capabilities Introduction7G4285-49 DFE Module and Interface Options7G4285-49 DFE-Platinum Module 7G4205-72 7G4205-72 DFE-Platinum Module Network Expansion Module NEM Switch Configuration Using WebViewConnectivity ManagementSwitch Configuration Using CLI Commands Secure Networks Policy SupportStandards Compatibility Lanview Diagnostic LEDs Network Requirements 10BASE-T Network Link Aggregation1000BASE-T Network 100BASE-TX Network1000BASE-T Network Network Requirements Installation Contents of DFE Module Carton Quantity Installation Site RequirementRequired Tools Unpacking the DFE ModuleInstalling an Optional Network Expansion Module NEM DFE Module Placement and Installation RulesMatrix E7 Chassis Module Placement Example 1 -1,A Example 2 -1,BExample 3 -1, C Example 4 -1,D Example 5 -1, EExample 6 -1, F Preparing to Install into a Chassis Installing the DFE Modules into a Matrix E7 or N7 Chassis Preparing to Install into a Chassis Preparing to Install into a Chassis Installing the DFE Modules into a Matrix N3 or N5 Chassis Card guides Connecting to the Network Connecting 48 Vdc Power for PoE OperationMaking the UTP Connections Connecting UTP Cables to DFE ModulesConnecting a Twisted Pair Segment with RJ45 Connector RX+ TX+ TX1+ 1 RX1- 2 TX2+ 3 TX3+ 4 RX3- 5 RX2- 6 TX4+ 7 RX4 Verifying PoE Port Status Connecting to COM Port for Local Management What Is NeededConnecting to an IBM PC or Compatible Device Parameter Setting Connecting to a VT Series Terminal10 Connecting a VT Series Terminal Connecting to a Modem11 Connecting to a Modem Adapter Wiring and Signal Assignments COM Port Adapter Wiring and Signal Diagram RJ45RJ45 DB25 Modem Port Adapter Wiring and Signal Diagram Completing the Installation Completing the Installation of a New SystemFirst-Time Log-In Using a Console Port Connection 12 Matrix DFE Startup Screen Example N7 Chassis Enter Logging in with an Administratively-Configured User AccountTroubleshooting Using LanviewAbout the Management Mgmt LED Lanview LEDs on 7G4285-49 Viewing Receive/Transmit Activity on 7G4285-49Lanview LEDs on 7G4205-72 Viewing Receive/Transmit Activity on 7G4205-72Viewing the PoE Port Status Color State Recommended Action Lanview LEDsLED RX/TX Platinum Series Configuration Guide for Troubleshooting ChecklistProblem Possible Cause Recommended Action Troubleshooting ChecklistOverview of DFE Module Shutdown Procedure OFFLINE/RESET Switch Recommended Shutdown Procedure Using OFFLINE/RESET SwitchLast Resort Shutdown Procedure Using OFFLINE/RESET Switch Specifications Table A-1 7G4285-49 Specifications DFE Module SpecificationsProcessors/Memory PhysicalTable A-2 7G4205-72 Specifications COM Port Pinout Assignments Table A-3 COM Port Pin Assignments Signal Name Input/OutputRegulatory Compliance Table A-4 Compliance Standards Regulatory ComplianceMode Switch Settings and Option Installations Setting the Mode Switches Memory Locations and Replacement Procedures Dram Simm Dimm Removing the Safety Cover Gaining Access to Memory ModulesFigure B-3 Removing the Safety Cover Figure B-4 Removing the Optional Network Expansion Module Dram Simm Replacement ProcedureGaining Access to Memory Modules Removing the Dimm Figure B-6 Installing the Dimm Dimm Replacement ProcedureFigure B-7 Removing the Existing Dimm Figure B-8 Installing the Dimm Installing the Network Expansion Module NEMFigure B-9 Installing the Network Expansion Module NEM Reinstalling the Safety Cover Figure B-10 Installing the Safety Cover Page Overview About PoE Power over EthernetProprietary PD Detection Table C-2 PoE Status LED Indications PoE Port Status PoE Port Status LEDsOverview About PoE Power over Ethernet Numerics IndexNEM B-12 installing