Cabletron Systems manual Connecting UTP Cables, ELS100-16TX Twisted Pair Connection

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Unpacking and Installing Your ELS100-16TX

2.6.1 Connecting UTP Cables

Before connecting a segment to the ELS100-16TX, check each end of the segment to verify wire crossover.

Caution: To establish a link, you must have an odd number of crossovers (preferably one) between 10/100 BASE-T devices of the same type (i.e., from repeater to repeater or transceiver to transceiver).

Connect a twisted pair segment to the ELS100-16TX as follows:

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

2.Refer to Figure 2-5. Connect the twisted pair segment to the ELS100-16TX by inserting the RJ45 connector on the twisted pair segment into the desired RJ45 port.

.

PORT STATUS MODE
STATUS	TX ACT FDX MON
PWR
CPU	RX COL	100 USR
RESET	RX COL
COM
ELS100-16TX

EPIM100

7X

9X

11X

13X

15X

3X

5X

1X

1

3

5

7

9

11 13

15

LINK

STATUS

EPIM100

LINK

10X

12X

14X

16X

6X

8x

STATUS

16

2X

4X

2

4

6

8

10 12 14

Figure 2-5. ELS100-16TX Twisted Pair Connection

3.Verify that a Link exists by checking that the port LINK LED is on (solid green). If the LINK LED is off, perform the following steps until it is on:

a.Check that the 10/100 BASE-T device at the other end of the twisted pair segment is ON and connected to the segment.

2-10

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Contents User Guide Page FCC Notice DOC Notice Cabletron Software Program License Declaration of Conformity Contents ELS100-16TX Diagnostics Troubleshooting Monitoring and Managing Your ELS100-16TXAppendix a Technical Specifications Appendix B GlossaryContents Viii Chapter Introduction About this Manual Getting Help Your email addressDocument Conventions Related Documentation Overview ELS100-16TX Front PanelSmartSTACK 100 ELS100-16TX Architecture Introduction Port Trunking AutonegotiationStore and Forward Switching Discarding Local TrafﬁcTypical Switching Application Spanning Tree AlgorithmSmartSTACK 100 ELS100-16TX Bridge Address Table SmartSTACK 100 ELS100-16TX Port Mirroring SmartSTACK 100 ELS100-16TX Sample ApplicationsSmartSTACK 100 ELS100-16TX Trunking Virtual Workgroups SmartSTACK 100 ELS100-16TX Trunking with 100 Mbps PortsRepeater Traffic Workgroup a Workgroup B Local Console Manager Command Syntax Conventions Basic LCM Commands HelpELS100-16TX Local Console Manager Erase Exit or LogoutTraplog Introduction Chapter Unpacking and Installing Your ELS100-16TX ELS100-16TX Front PanelPort LEDs 100BASE-T Epim Ports Reset Switch Status LEDs ACT Installing AN Epim Describes the ELS100-16TX buttonsInstalling an Epim Installing the ELS100-16TX Rack-Mounting an ELS100-16TXAttaching Rackmount Brackets Checking the POWER-UP Diagnostics Sequence Connecting the Local Console ManagerConnecting to the Network Connecting UTP Cables ELS100-16TX Twisted Pair ConnectionConnecting a Segment to the EPIM-100FX Cable Pinouts RJ45 Crossover CableFiber Optic Network Connection EPIM-100FX Port Unpacking and Installing Your ELS100-16TX Chapter Configuring Your ELS100-16TX Spectrum Spel SpmaAssigning IP Addresses Type ipaddr PORT-NUMBER IP Address Displaying IP Addresses Deleting an IP AddressChanging a Subnet Mask Enabling Bridging To change the subnet mask, at the LCM promptDisabling Bridging Displaying Bridging FunctionsEnabling Trunking Trunk Groups 100BASE-T Crossover CablesTrunk Groups Disabling Trunking Displaying Trunking Status Display could look like the followingEnabled, Rip listening Enabling Port Mirroring Disabling MirroringDisplaying Mirroring Status To check the status for ports conﬁgured for mirroring Defining and Deleting Workgroups Deﬁning Virtual WorkgroupsLCM responds with the following display Assigning a Community Name Configuring BROADCAST/MULTICAST Storm Protection Modifying MIB Variables System ContactSystem Name System LocationCommunity Names Set Community Name Aging ParameterChapter Monitoring and Managing Your ELS100-16TX ELS100-16TX Management ToolsELS100-16TX Statistics Gathering Statistics System StatisticsEthernet Port Statistics Using LCM to Check ELS100-16TX Status Displaying StatusEnabled, Rip listening Displaying MAC Addresses To display all MAC addresses, at the LCM prompt Displaying Manufacturing Information LCM would displayUsing LCM to Manage the ELS100-16TX Managing the ELS100-16TXDisabling a Port Enabling a PortNoRIP Option Changing a Community Name Setting the Baud Rate Setting a Reboot Time Chapter ELS100-16TX Diagnostics and Troubleshooting POWER-UP DiagnosticsPower-up LED Sequence Speciﬁc Power-up Tests Software Checksum ComparisonPower-up Diagnostics Results Responses to Failures AT POWER-UPStatus and Activity Indicators ELS100-16TX Front Panel LEDs ACT ELS100-16TX does not Power UP Connectivity Problems 2 ELS100-16TX Has Rebooted3 ELS100-16TX Does Not Respond to NMS ELS100-16TX Diagnostics and Troubleshooting Electrical Connector PortsPhysical EnvironmentalDiagnostic LEDs Standard SupportRegulatory Compliance Address Table SizeManagement Support Serial Cable PIN AssignmentsConnectors 100BASE-T PIN AssignmentsSTRAIGHT-THROUGH Wiring Crossover WiringEPIM-100FX Specifications 5 4 3 RuleCable Type Worst Case Budget Typical Budget Technical Speciﬁcations Address table AlarmAddress AgentBpdu bridge protocol data unit BackboneBandwidth Bps bits per secondDatagram CongestionData link layer Data rate or speedEncode Full wire speedEncapsulation EntityIeee Intelligent bridge/switchIcmp Internet control message protocol InitializationIP Internet protocol InternetworkingInteroperability ISO International Standards OrganizationMbps megabits per second MAC media access controlMask MIB management information baseOSI Open Systems Interconnection Power budgetPropagation delay PacketProtocol Rarp reverse address resolution protocolService Protocol suiteSynchronous transmission SwitchSymbol Translating bridgeUpstream WAN wide area networkGlossary