SMC Networks SMC6724L3 INT manual Straight-Through Wiring, Crossover Wiring

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CABLES

Straight-Through Wiring

If the twisted-pair cable is to join two ports and only one of the ports has an internal crossover (MDI-X), the two pairs of wires must be straight-through. (When auto-negotiation is enabled for any RJ-45 port on this switch, you can use either straight-through or crossover cable to connect to any device type.)

EIA/TIA 568B RJ-45 Wiring Standard 10/100BASE-TX Straight-through Cable

 

 

White/Orange Stripe

 

 

 

 

Orange

 

 

 

1

White/Green Stripe

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End A

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2

End B

 

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Green

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7

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Figure B-2. Straight-through Wiring

Crossover Wiring

If the twisted-pair cable is to join two ports and either both ports are labeled with an “X” (MDI-X) or neither port is labeled with an “X” (MDI), a crossover must be implemented in the wiring. (When auto-negotiation is enabled for any RJ-45 port on this switch, you can use either straight-through or crossover cable to connect to any device type.)

EIA/TIA 568B RJ-45 Wiring Standard 10/100BASE-TX Crossover Cable

 

 

White/Orange Stripe

 

 

 

 

Orange

 

 

 

1

White/Green Stripe

1

 

End A

2

 

2

End B

 

3

 

3

 

 

4

 

4

 

 

5

 

5

 

 

6

Green

6

 

 

7

7

 

 

 

 

 

8

 

8

 

Figure B-3. Crossover Wiring

B-4

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Contents TigerSwitch 10/100 Page TigerSwitch 10/100 Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA FCC Class a CompliancesIndustry Canada Class a EC Conformance Declaration Class a Japan Vcci Class a Australia AS/NZS 3548 1995 Class a Warnhinweis Faseroptikanschlüsse Optische Sicherheit Safety ComplianceUnderwriters Laboratories Compliance Statement Wichtige Sicherheitshinweise Germany Viii Table of Contents Installing the Switch Making Network ConnectionsAppendices Table of Contents Chapter About Tigerswitch 10/100 OverviewSwitch Architecture SMC6724L3 Front and Rear PanelsManagement Options Description of Hardware RJ-45 PortsPorts Status LEDs Port Status LEDsSystem Status LEDs System Status LEDsOptional 10/100/1000BASE-T Module SMC6824GT Optional Media Extender ModulesOptional 100BASE-FX Module SMC6824FSSC Optional 100BASE-FX Module SMC6824FMSC Optional 1000BASE-X Gbic Module SMC6824GBOptional Redundant Power Unit Power Supply ReceptacleConnectivity Features and BenefitsExpandability Performance ManagementAbout the Tigerswitch 10/100 Introduction to Switching Chapter Network PlanningApplication Examples Collapsed BackboneCentral Wiring Closet Central Wiring ClosetRemote Connection with Fiber Cable Remote Connection with Fiber CableMaking Vlan Connections Making Vlan ConnectionsUsing Layer 3 Routing IP Routing for Unicast TrafficConnectivity Rules Mbps Gigabit Ethernet Collision Domain10/100 Mbps Ethernet Collision Domain Application Notes Network Planning Installing the Switch Selecting a SitePackage Contents Equipment ChecklistOptional Rack-Mounting Equipment Mounting Rack MountingAttaching the Brackets Desktop or Shelf Mounting Attaching the Adhesive FeetInstalling an Optional Module into the Switch Installing an Optional ModuleInstalling a Gbic Transceiver Installing a Gbic TransceiverConnecting to a Power Source Power ReceptacleTwisted-Pair Devices Connecting Network DevicesChapter Making Network Connections Cabling GuidelinesConnecting to PCs, Servers, Hubs and Switches Making Twisted-Pair ConnectionsTWISTED-PAIR Devices Wiring Closet Connections Wiring Closet ConnectionsFiber Optic Devices Making SC Port Connections Appendix a Troubleshooting Diagnosing Switch IndicatorsInstallation Power and Cooling ProblemsIn-Band Access Specifications Appendix B CablesTwisted-Pair Cable and Pin Assignments Fiber SMFFigure B-1. RJ-45 Connector Pin Numbers 10BASE-T/100BASE-TX Pin AssignmentsStraight-Through Wiring Crossover Wiring1000BASE-T Pin Assignments Adjusting Existing Category 5 Cabling Cable Testing for Existing Category 5 Cable1000BASE-T Cable Requirements Wiring Map for Serial Cable Console Port Pin AssignmentsCables Physical Characteristics Appendix C SpecificationsBase Unit Compliances Slide-in Modules Warranty100BASE-FX Extender Modules 1000BASE-T Extender Module Model1000BASE-X Gbic Module Specifications Appendix D Ordering Information Ordering Information Glossary 1000BASE-TCollision Auto-NegotiationBandwidth Collision DomainFull Duplex Fast Ethernet SwitchFast Ethernet Gigabit EthernetLAN Segment Media Access Control MACIeee 802.3z Link SegmentSwitched Ports RJ-45 ConnectorStraight-through Port Glossary-6 Index NumericsIndex-2 Index-3 Index-4 Page For Technical SUPPORT, Call