Enterasys Networks 6H308-48, 4H4285-49, 9033989-06 C

Matrix DFE-Gold Series PoE Module Hardware Installation Guide C-1

C

About PoE (Power over Ethernet)

ThisappendixprovidesanoverviewofPoweroverEthernetTechnologyandhowitis

implementedinrelationtothe4H4285‐49.

Overview

PoweroverEthernet(PoE)referstotheabilitytoprovideoperationalpowertoadevice

connectedtoadatanetworkusingthesamecablingthatprovidesthedatainterface.

ModernEthernetimplementationsemploydifferentialsignalsovertwistedpaircables.

Thisrequiresataminimumoftwotwistedpairsforasinglephysicallink.Bothendsof

thecableareisolatedwithtransformersblockinganyDCorcommonmodevoltageonthe

signalpair.PoEexploitsthisfactbyusingtwotwistedpairsasthetwoconductorsto

supplyadirectcurrent.Onepaircarriesthepowersupplycurrentandtheotherpair

providesapathforthereturncurrent.Whileseveralproprietarylegacyimplementations

ofPoEhavebeendeployedbyLANequipmentvendors,in2003theIEEEpublishedthe

IEEE802.3af‐2003specification,whichispartofthe802.3suiteofstandards.

The4H4285‐49isfullycompliantwiththeIEEE802.3afstandard.Itsupportsthestandard

resistorbaseddetectionmethod,aswellasACdisconnectcapability.The4H4285‐49is

alsocapableofsupplyingthemaximumspecifiedcurrenttoallportssimultaneously.

EachPDhasaPDC(PoweredDeviceClassification)thatistransmittedtotheDFEmodule

forpowermanagementpurposes.Table C ‐1onpageC‐1liststheclassificationsandthe

associatedpowerranges.

Table C-1 Powered Device Classifications

Class Usage PD Maximum Power Range Usage

0 Default 0.44 to 12.95 Watts

1 Optional 0.44 to 3.84 Watts

2 Optional 3.84 to 6.49 Watts

3 Optional 6.49 to 12.95 Watts

4 Not Allowed Reserved for Future Use

Contents

Main Page Notice Regulatory Compliance Information Page Supplement to Product Instructions 50 Page Safety Information Class 1 Laser Transceivers Declaration of Conformity ENTERASYS NETWORKS, INC. FIRMWARE LICENSE AGREEMENT BEFORE OPENING OR UTILIZING THE ENCLOSED PRODUCT, CAREFULLY READ THIS LICENSE AGREEMENT. Page Page Page Contents About This Guide Chapter 1: Introduction Chapter 2: Network Requirements Chapter 3: Installation Chapter 4: Troubleshooting Appendix A: Specifications Index Appendix B: Mode Switch Settings and Option Installations Appendix C: About PoE (Power over Ethernet) Figures Tables Page About This Guide Who Should Use This Guide How to Use This Guide Related Documents Conventions Used in This Guide Thefollowingconventionsareusedinthisguide: Getting Help Introduction Overview of DFE-Gold PoE Module Capabilities DFE-Gold Module 4H4285-49 Page DFE-Gold Module 1-4 Introduction Figure 1-1 4H4285-49 DFE-Gold Module 4H4285-49 DFE FAST ENET Connectivity 4H4285-49 Management Switch Configuration Using WebView Switch Configuration Using CLI Commands Standards Compatibility LANVIEW Diagnostic LEDs Network Requirements Link Aggregation 10BASE-T Network 100BASE-TX Network Installation Installation Site Requirement Unpacking the DFE Module Installing Optional Network Expansion Module (NEM) DFE Module Placement and Installation Rules A DCB Example 1 (Figure 3-1, A) Example 2 (Figure 3-1, B) Example 3 (Figure 3-1, C) Example 4 (Figure 3-1, D) Example 5 (Figure 3-1, E) Preparing to Install the 4H4285-49 Installing 4H4285-49into a Matrix E7 or N7 Chassis Page Preparing to Install the 4H4285-49 Matrix DFE-Gold Series PoE Module 4H4285-49 Installation Guide 3-9 Figure 3-2 Installing Module into Matrix E7 or N7 Chassis (Matrix E7 shown) FAST ENET Installing 4H4285-49into Matrix N3 or N5 Chassis Preparing to Install the 4H4285-49 Matrix DFE-Gold Series PoE Module 4H4285-49 Installation Guide 3-11 FAST ENET DFE Connecting 48 Vdc Power for PoE Operation Connecting to the Network Connecting UTP Cables to 4H4285-49 Making the UTP Connections Page Page Page Verifying PoE Port Status Connecting to COM Port for Local Management What Is Needed Connecting to an IBM PC or Compatible Device Connecting to a VT Series Terminal Page Connecting to a Modem Connecting to COM Port for Local Management 3-22 Installation Figure 3-11 Connecting Using a Modem 4H4285-49 FAST ENET Adapter Wiring and Signal Assignments COM Port Adapter Wiring and Signal Diagram RJ45 DB9 VT Series Port Adapter Wiring and Signal Diagram RJ45 DB25 Completing the Installation Completing the Installation of a New System First-Time Log-In Using a Console Port Connection Completing the Installation of a DFE-Gold Module in an Existing System Logging in with an Administratively-Configured User Account Page Troubleshooting Using LANVIEW About the Management (MGMT) LED Viewing Receive/Transmit Activity Viewing the PoE Port Status Page RX/TX Indications in Standard Mode RX/TX LED Indications in PoE Port Status Mode Troubleshooting Checklist Table 4-2 Troubleshooting Checklist (continued) Problem Possible Cause Recommended Action Overview of DFE Module Shutdown Procedure Recommended Shutdown Procedure Using OFFLINE/RESET Switch Last Resort Shutdown Procedure Using OFFLINE/RESET Switch A Specifications 4H4285-49Specifications Table A-1 4H4285-49Specifications (continued) Item Specification COM Port Pinout Assignments Regulatory Compliance Page B Mode Switch Settings and Option Installations Required Tools Setting the Mode Switches Memory Locations and Replacement Procedures Matrix DFE-Gold Series PoE Module Hardware Installation Guide B-3 Figure B-1 Mode Switch Location (4H4285-49 shown without safety cover) Memory Locations and Replacement Procedures 1Mode switch pack (4H4285-49 shown without safety cover) 12345678 ON B-4 Mode Switch Settings and Option Installations Figure B-2 DRAM SIMM/DIMM Locations (4H4285-49 shown without safety cover) Gaining Access to Memory Modules Removing the Safety Cover B-6 Mode Switch Settings and Option Installations Figure B-3 Removing the Safety Cover Matrix DFE-Gold Series PoE Module Hardware Installation Guide B-7 DRAM SIMM Replacement Procedure 4H42zz85-49 Removing the Network Expansion Module (NEM) Page Page DIMM Replacement Procedure Removing the DIMM Page B-12 Mode Switch Settings and Option Installations Reinstalling the Optional Network Expansion Module 1NEM 3NEM connectors 5Coverplate screws (2) 2Front panel 4Main board connectors 6Standoff Reinstalling the Safety Cover B-14 Mode Switch Settings and Option Installations Figure B-10 Installing the Safety Cover 1Safety cover 2Screws (7) 3Standoff (7) C About PoE (Power over Ethernet) Overview Proprietary PD Detection Power Interface Matrix N5 Backplane 48 Vdc Interface Front Panel 48 Vdc Interface PoE Port Status LEDs Page Index Numerics C D E O P R S T