Straight-Through Wiring | SMC Networks SMC8748ML3, SMC8724ML3

TWISTED-PAIR CABLE AND PIN ASSIGNMENTS

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 these switches, you can use either straight-through or crossover cable to connect to any device type.)

You must connect all four wire pairs as shown in the following diagram to support Gigabit Ethernet connections.

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

White/Orange Stripe

		Orange
	1	White/Green Stripe	1
End A	2	Blue	2	End B
	3	Blue	3
	4		4
	5	White/Blue Stripe	5
	6	Green	6
	7	Green	7
	8	White/Brown Stripe	8
		White/Brown Stripe

Brown

Figure B-2 Straight-through Wiring

B-3

Image 69

SMC Networks SMC8748ML3, SMC8724ML3 manual Straight-Through Wiring, Figure B-2 Straight-through Wiring

Contents

TigerStack Page TigerStack Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA FCC Class a CompliancesIndustry Canada Class a Japan Vcci Class a CE Mark Declaration of Conformance for EMI and Safety EEC Power Cord Safety Safety ComplianceAustralia AS/NZS 3548 1995 Class a Warnhinweis Faseroptikanschlüsse Optische Sicherheit Power Cord Set France et Pérou uniquement Vii Schuko Viii Environmental Statement Purpose AudienceRelated Publications Table of Contents Xii Making Network Connections Xiii Appendices Xiv Tables Figures Figures Xvi Overview Chapter About Tigerstack Front Panels Switch Architecture Description of Hardware Network Management Options10/100/1000BASE-T Ports Stacking Ports SFP Slots Port LEDs Port Status LEDs Port and System Status LEDs System Status LEDs Power Supply Sockets Optional Redundant Power Unit Extender Module LEDs Optional Media Extender Modules10G Xenpak Module Module LEDs Connectivity Features and BenefitsExpandability Performance Management Chapter Network Planning Introduction to Switching Collapsed Backbone Application Examples Network Aggregation Plan Network Aggregation Plan Remote Connections with Fiber Cable Remote Connections with Fiber Cable Making Vlan Connections Making Vlan Connections IP Routing for Unicast Traffic Using Layer 3 Routing Application Notes Network Planning Selecting a Site Installing the Switch RJ-45 Connections Ethernet Cabling Equipment Checklist Package ContentsOptional Rack-Mounting Equipment Rack Mounting Mounting Attaching the Brackets Rack-Montage Montage Rack Mounting German Attaching the Adhesive Feet Desktop or Shelf Mounting Installing an Optional Module Installing an Optional Module into the Switch Inserting an SFP Transceiver into a Slot Installing an Optional SFP Transceiver into the Switch Connecting Switches in a Stack Making Stacking Connections Stacking Topologies Power Socket Connecting to a Power Source Connecting to the Console Port Wiring Map for Serial CableWiring Map for Serial Cable Chapter Making Network Connections Connecting Network DevicesTwisted-Pair Devices Cabling Guidelines Making Twisted-Pair Connections Connecting to PCs, Servers, Hubs and Switches Wiring Closet Connections Network Wiring Connections Fiber Optic SFP Devices Making Connections to SFP Transceivers Gbps Fiber Optic Connections Connecting to Xenpak Transceiver 1000BASE-T Cable Requirements Connectivity RulesGbps Ethernet Collision Domain Maximum 10GBASE-SR 10 Gigabit Ethernet Cable Length Mbps Gigabit Ethernet Collision Domain Mbps Ethernet Collision Domain Mbps Fast Ethernet Collision DomainMaximum 1000BASE-ZX Fiber Optic Cable Length Maximum Fast Ethernet Cable Length Cable Labeling and Connection Records Appendix a Troubleshooting Diagnosing Switch IndicatorsTable A-1 Troubleshooting Chart Table A-2 Power/RPU LEDs Diagnosing Power Problems with the LEDs Power and Cooling Problems InstallationIn-Band Access Stack Troubleshooting Twisted-Pair Cable and Pin Assignments Appendix B Cables Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts 10BASE-T/100BASE-TX Pin Assignments Figure B-2 Straight-through Wiring Straight-Through Wiring Figure B-3 Crossover Wiring Crossover Wiring Cable Testing for Existing Category 5 Cable 1000BASE-T Pin AssignmentsTable B-2 1000BASE-T MDI and MDI-X Port Pinouts Fiber Standards Adjusting Existing Category 5 Cabling to Run 1000BASE-T Physical Characteristics Appendix C Specifications Weight Switching DatabaseTemperature Power Supply Management Features Switch Features Standards SafetyCompliances CE Mark Emissions Warranty Extender Modules10G Extender Module Xenpak Specifications Appendix D Ordering Information Table D-1 TigerStack 1000 Products and Accessories Ordering Information Glossary Glossary-11000BASE-T Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Index-1 Index Index-2 Index-3 Index-4 Page For Technical SUPPORT, Call