Straight-Through Wiring | SMC Networks SMC7824M/ESW instruction

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		2
	3	Blue	3
	4		4
	5	White/Blue Stripe	5
	6	Green	6
	7	Green	7
	7		7
	8	White/Brown Stripe	8
		White/Brown Stripe

Brown

Figure B-2 Straight-through Wiring

End B

B-3

Image 71

SMC Networks SMC7824M/ESW manual Straight-Through Wiring, Figure B-2 Straight-through Wiring

Contents

TigerAccess 10/100 Page TigerAccess 10/100 Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA Japan Vcci Class a CompliancesFCC Class a Industry Canada Class a Viii CE Mark Declaration of Conformance for EMI and Safety EEC Warnhinweis Faseroptikanschlüsse Optische Sicherheit Safety ComplianceAustralia AS/NZS 3548 1995 Class a Power Cord Set Power Cord Safety France et Pérou uniquement Xii PSE Alarm Xiii Xiv Table of Contents Xvi Making Network Connections German Instructions TroubleshootingSpecifications Cables Xviii Xix Tables Figures Overview Chapter About Tigeraccess Switch Network Management Options Switch Architecture 100BASE-TX Management Port Description of Hardware100BASE-TX and 1000BASE-T Ports Optional SFP Transceivers Console PortSFP Slots Port and System Status LEDs Alarm Interface Port LED Port and System Status LEDs Fan Tray Fan Tray Optional Power Modules Power Modules 1000BASE Combo Module Optional Media Extender Module Performance Features and BenefitsConnectivity Expandability Management About the Tigeraccess Switch Application Examples Introduction to SwitchingChapter Network Planning Collapsed Backbone Collapsed Backbone Network Aggregation Plan Network Aggregation Plan Remote Connections with Fiber Cable Remote Connections with Fiber Cable Making Vlan Connections Making Vlan Connections Application Notes Selecting a Site Installing the Switch RJ-45 Connections Ethernet Cabling Optional Rack-Mounting Equipment Equipment ChecklistPackage Contents Rack Mounting Mounting Installing the Switch in a Rack 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 Grounding the Chassis Connecting DC Power Connecting to a Power Source Connecting to a Power Source DC Plug Connections AC Power Receptacle Connecting AC Power Serial Cable Wiring Connecting to the Console PortWiring Map for Serial Cable 10 Alarm Port D-15 Pin-Out Connecting to the Alarm Port Alarm Cable Wiring Wiring Map for Alarm Cable 11 External Alarm I/O Connections Installing the Switch Cabling Guidelines Connecting Network DevicesChapter Making Network Connections Twisted-Pair Devices Making Twisted-Pair Connections Connecting to PCs, Servers, Hubs and Switches Network Wiring Connections Network Wiring Connections Fiber Optic SFP Devices Making Connections to SFP Transceivers Maximum 1000BASE-T Gigabit Ethernet Cable Length Connectivity Rules1000BASE-T Cable Requirements Mbps Gigabit Ethernet Cable Lengths Mbps Ethernet Cable Lengths Mbps Fast Ethernet Cable Lengths Cable Labeling and Connection Records Table A-1 Diagnosing Switch Indicators Appendix a TroubleshootingDiagnosing Switch Indicators Troubleshooting In-Band Access Power and Cooling ProblemsInstallation 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 Table B-2 1000BASE-T MDI and MDI-X Port Pinouts 1000BASE-T Pin Assignments Adjusting Existing Category 5 Cabling to Run 1000BASE-T Cable Testing for Existing Category 5 Cable Fiber Standards Cables Physical Characteristics Appendix C Specifications Power Supply Switching DatabaseWeight Temperature Management Features Switch Features Immunity StandardsCompliances Emissions Extender Modules Extender Modules Eine Site Auswählen Selecting a Site Appendix D German Instructions Rack-Montage Montage Rack Mounting Instructions Grounding the Chassis Das Erden des Gehäuses Anschluss an Gleichstrom Anschluss an eine Stromquelle Anschluss AN Eine Stromquelle Connecting to a Power Source Figure D-1 Gleichstromanschlüsse Wechselstromanschluss Figure D-2 Wechselstromanschluss Appendix E Ordering Information Table E-1 TigerAccess 10/100 Products and Accessories Ordering Information Auto-Negotiation GlossaryGlossary-1 1000BASE-T Glossary-2 Glossary-3 Glossary-4 Virtual LAN Vlan Glossary-5Transmission Control Protocol/Internet Protocol TCP/IP Glossary-6 Index-1 Index Index-2 SFP Index-3 Index-4 Page For Technical SUPPORT, Call