Enterasys Networks 4G4282-49, 6H303-48, 9034096-02 manual Connecting UTP Cables

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Connecting to the Network

Connecting UTP Cables

The fixed RJ45 front panel connections of the 4G4202‐72 and 4G4282‐49 are 10/100/1000 Mbps ports. These ports have internal crossovers, and also 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, whether the connection is to another network device or a workstation.

Note: All RJ45 front panel ports on the 4G4202-72 and 4G4282-49 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.

In this procedure, the 4G4202‐72 is used as the example to connect a twisted pair segment to the module. It is also assumed that the chassis power is turned on to provide power to the module. Refer to Figure 3‐8 on page 3‐17 and proceed as follows:

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

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

3.Verify that a link exists by checking that the port RX (Receive) LED is ON (flashing amber, blinking green, or solid green). If the RX LED is OFF and the TX (Transmit) LED is not blinking amber, perform the following steps until it is on:

a.To view the receive and transmit activity on a group of segments, press the GROUP SELECT button (see Figure 3‐8 on page 3‐17) to step to the group of interest (Groups 1 through 3 on the 4G4202‐72, or Groups 1 through 5 on the 4G4282‐49). Each time the GROUP SELECT button is pressed, a GROUP LED lights up in sequence, indicating which Group is selected. The receive and transmit activity for that group of segments is then indicated by the RX and TX LEDs for each segment.

b.Verify that the cabling being used is Category 5 UTP with an impedance between 85 and 111 ohms. For the port to operate at 100 or 1000 Mbps, Category 5 cabling must be used and installed properly.

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

d.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 network devices. A straight‐through cable is used to connect between switches or hub devices and an end system (computer). Refer to Figure 3‐9 and

3-16 Installation

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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 Troubleshooting Appendix a SpecificationsAppendix B Mode Switch Bank Settings Optional Installations IndexFigures Tables About This Guide Who Should Use This GuideImportant Notice How to Use This Guide Related DocumentsFor Refer to Conventions Used in This Guide Following conventions are used in this guideConventions Used in This Guide Xvi About This Guide Introduction For information about Refer toOverview of DFE Series Capabilities DFE-Gold Modules and Interface Options4G4202-72 4G4282-494G4202-72 and 4G4282-49 DFE-Gold Modules 7G-6MGBIC and 7G-6MGBIC-A Gigabit Ethernet Interface Modules Switch Configuration Using WebView ConnectivityManagement Switch Configuration Using CLI Commands Standards CompatibilitySecure Networks Policy Support Lanview Diagnostic LEDs Getting HelpNetwork Requirements Link Aggregation10BASE-T Network 100BASE-TX Network1000BASE-SX/LX/ELX Network 1000BASE-T Network 1000BASE-T Network Network Requirements Installation Important NoticeInstalling Optional Network Expansion Modules Contents of DFE-Gold Module Carton QuantityUnpacking the DFE-Gold Module Installing the Network Expansion Module Removing the CoverplateInstalling the Network Expansion Module Installing an Optional Mini-GBIC PreparationInstallation Mini-GBIC with MT-RJ ConnectorMini-GBIC with LC Connector Removing the Mini-GBIC Module Placement and Rules N5 POEExample 1 -6, a Example 2 -6, BExample 3 -6, C Example 4 -6, DInstalling the DFE Module into a Chassis Installing Module into Matrix E7 or N7 Chassis To install the module, refer to ‐1 and proceed as followsCard guides Installing Module into Matrix N1, N3, or N5 Chassis Connecting to the Network Installing Module into N1, N3, or N5 Chassis only N3 shownConnecting UTP Cables DFE RX+ TX+ TX1+ RX1 TX2+ TX3+ RX3 RX2 TX4+ RX4 Connecting Fiber-Optic Cables to Mini-GBICs 13 Cable Connection to MT-RJ Fiber-Optic Connectors 14 Cable Connection to LC Fiber-Optic Connectors Connecting to COM Port for Local Management What Is NeededConnecting to an IBM PC or Compatible Device Parameter SettingConnecting to a VT Series Terminal 15 Connecting an IBM PC or Compatible DeviceConnecting to a Modem 16 Connecting a VT Series Terminal17 Connecting to a Modem Adapter Wiring and Signal Assignments COM Port Adapter Wiring and Signal Diagram RJ45VT Series Port Adapter Wiring and Signal Diagram RJ45 DB25Completing the Installation Completing the Installation of a New SystemModem Port Adapter Wiring and Signal Diagram First-Time Log-In Using a Console Port Connection 18 Matrix DFE Startup Screen Example N7 Chassis Logging in with an Administratively-Configured User Account Troubleshooting Using LanviewAbout the Management Mgmt LED Viewing the Receive and Transmit Activity 4G4282-49LED Color State Recommended ActionAmber Alternating 67% on, 33% and off off. Indicates that a Troubleshooting Checklist Refer to the Matrix DFE-Gold Series ConfigurationDFE-Gold Module Shutdown Procedure Matrix DFE-Gold Series Configuration Guide forRecommended Shutdown Procedure Using OFFLINE/RESET Switch OFFLINE/RESET SwitchLast Resort Shutdown Procedure Using OFFLINE/RESET Switch Specifications DFE-Gold Module SpecificationsTable A-1 Specifications Ethernet Interface Module Specifications Processors/MemoryMini-GBIC Input/Output Specifications Table A-3 Mini-GBIC Input/Output Port SpecificationsGigabit Ethernet Specifications MGBIC-LC01 / MGBIC-MT01 Specifications 1000BASE-SXMGBIC-LC03 Specifications 1000BASE-LX MGBIC-LC09 Specifications 1000BASE-LX MGBIC-08 Specifications 1000BASE-ELXTable A-10 MGBIC-08 Optical Specifications MGBIC-02 Specifications 1000BASE-T Table A-12 MGBIC-02 SpecificationsTable A-11 MGBIC-08 Operating Range 1550 nm COM Port Pinout Assignments Regulatory ComplianceTable A-14 Compliance Standards Regulatory Compliance Regulatory Compliance Specifications Mode Switch Bank Settings Optional Installations Setting the Mode SwitchesRequired Tools Figure B-1 Mode Switch Location on 4G4202-72 and 4G4282-49 Memory Locations and Replacement Procedures Location of Dram Simm and Dimm Memory ModulesDram Simm Replacement Procedure Removing the Dram SimmFigure B-5 Removing the Existing Dram Simm from 4G4282-49 Installing the Dram Simm on 4G4282-49 Figure B-6 Installing the Dram Simm on 4G4282-49Dimm Replacement Procedure Removing the DimmInstalling the Dimm on 4G4202-72 or 4G4282-49 Figure B-8 Installing the Dimm on 4G4202-72 or 4G4282-49Index NumericsIndex-2
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