Enterasys Networks 4H4285-49, 6H308-48, 9033989-06 manual Rx+ Tx+

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Connecting to the Network

c.Verify that the cabling being used is Category 5 UTP with an impedance between 85 and 111 ohms. If the port is to operate at 100 Mbps, category 5 cabling must be used.

d.Verify that the device at the other end of the twisted pair segment is on, and properly connected to the segment.

e.Verify that the RJ45 connectors on the twisted pair segment have the proper pinouts and check the cable for continuity. Typically, a crossover cable is used between hub devices. A straight‐through cable is used to connect between switches or hub devices and an end user (computer). Refer to Figure 3‐5 and Figure 3‐6 for four‐wire RJ45 connections. Refer to Figure 3‐7 and Figure 3‐8 for eight‐wire RJ45 connections.

Figure 3-5 Four-Wire Crossover Cable RJ45 Pinouts, Connections Between Hub Devices

	À

RX+	1
RX–	2
Ã
TX+	3
TX–	6

1RJ45 device port

2Other device port

Á

1 RX+

2 RX–

3 TX+

6 TX–

Â

3RJ45-to-RJ45 crossover cable

4RX+/RX- and TX+/TX- connections. These connections must share a common color pair.

Matrix DFE-Gold Series PoE Module 4H4285-49 Installation Guide 3-15

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Contents Enterasys Matrix Page Page Regulatory Compliance Information Electromagnetic Compatibility EMC Supplement to Product Instructions Vcci Notice Safety Information Class 1 Laser Transceivers Enterasys NETWORKS, INC. Firmware License Agreement Viii Page Page Contents Appendix C About PoE Power over Ethernet TroubleshootingAppendix a Specifications Appendix B Mode Switch Settings and Option InstallationsTables FiguresXiv Who Should Use This Guide About This GuideImportant Notice Related Documents How to Use This GuideFor Refer to Following conventions are used in this guide Conventions Used in This GuideGetting Help For information about Refer to IntroductionDFE-Gold Module Overview of DFE-Gold PoE Module Capabilities4H4285-49 DFE-Gold Module 4H4285-49 DFE-Gold Module Management Switch Configuration Using WebViewSwitch Configuration Using CLI Commands ConnectivityStandards Compatibility Lanview Diagnostic LEDsLink Aggregation Network Requirements100BASE-TX Network 10BASE-T NetworkInstallation Contents of DFE Module Carton Quantity Installation Site RequirementUnpacking the DFE Module DFE Module Placement and Installation Rules Installing Optional Network Expansion Module NEMExample 1 -1, a Example 3 -1, C Preparing to Install the 4H4285-49 Installing 4H4285-49 into a Matrix E7 or N7 Chassis Preparing to Install the 4H4285-49 Card guides Installing 4H4285-49 into Matrix N3 or N5 Chassis Card guides Connecting 48 Vdc Power for PoE Operation Connecting UTP Cables to 4H4285-49 Connecting to the NetworkMaking the UTP Connections Connecting a Twisted Pair Segment with RJ45 Connector RX+ TX+ RX+ Verifying PoE Port Status What Is Needed Connecting to COM Port for Local ManagementConnecting to an IBM PC or Compatible Device Parameter Setting Connecting to a VT Series Terminal10 Connecting a VT Series Terminal Connecting to a Modem 11 Connecting Using a Modem RJ45 DB25 Adapter Wiring and Signal AssignmentsCOM Port Adapter Wiring and Signal Diagram RJ45 VT Series Port Adapter Wiring and Signal DiagramCompleting the Installation of a New System Completing the InstallationModem Port Adapter Wiring and Signal Diagram RJ45 DB25 First-Time Log-In Using a Console Port Connection 12 Matrix Defogged Startup Screen Example N7 Chassis Enter Logging in with an Administratively-Configured User AccountCompleting the Installation Using Lanview TroubleshootingAbout the Management Mgmt LED Lanview LEDs Viewing Receive/Transmit ActivityColor State Recommended Action Viewing the PoE Port StatusAlternately 67% on, 33% LED RX/TX Refer to the Matrix DFE-Gold Series Configuration Troubleshooting ChecklistMatrix DFE-Gold Series Configuration Guide for OFFLINE/RESET Switch Overview of DFE Module Shutdown ProcedureLast Resort Shutdown Procedure Using OFFLINE/RESET Switch Recommended Shutdown Procedure Using OFFLINE/RESET Switch4H4285-49 Specifications SpecificationsTable A-1 4H4285-49 Specifications Processors/Memory Table A-1 4H4285-49 Specifications ItemSpecificationTable A-3 Compliance Standards Regulatory Compliance Table A-2 COM Port Pin Assignments Signal Name Input/OutputCOM Port Pinout Assignments Regulatory ComplianceRegulatory Compliance Specifications Required Tools Mode Switch Settings and Option InstallationsSetting the Mode Switches Memory Locations and Replacement Procedures Memory Locations and Replacement ProceduresGaining Access to Memory Modules Gaining Access to Memory ModulesRemoving the Safety Cover Figure B-3 Removing the Safety Cover Removing the Network Expansion Module NEM Dram Simm Replacement ProcedureFigure B-5 Removing the Existing Dram Simm Removing the Dram SimmFigure B-6 Installing the Dram Simm Installing the Dram SimmRemoving the Dimm Dimm Replacement ProcedureFigure B-8 Installing the Dimm Installing the DimmFigure B-9 Installing the Network Expansion Module Reinstalling the Optional Network Expansion ModuleReinstalling the Safety Cover Figure B-10 Installing the Safety Cover Overview About PoE Power over EthernetFront Panel 48 Vdc Interface Power InterfaceProprietary PD Detection Matrix N5 Backplane 48 Vdc InterfaceTable C-2 PoE Status LED Indications PoE Port Status PoE Port Status LEDsPoE Port Status LEDs About PoE Power over Ethernet Numerics IndexPinout assignments console port A-3

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