SMC Networks SMC8126L2 1000BASE-T Cable Requirements, Mbps Gigabit Ethernet Collision Domain

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Connectivity Rules 4

1000BASE-T Cable Requirements

All Category 5 UTP cables that are used for 100BASE-TX connections should also work for 1000BASE-T, providing that all four wire pairs are connected. However, it is recommended that for all critical connections, or any new cable installations, Category 5e (enhanced Category 5) or Category 6 cable should be used. The Category 5e specification includes test parameters that are only recommendations for Category 5. Therefore, the first step in preparing existing Category 5 cabling for running 1000BASE-T is a simple test of the cable installation to be sure that it complies with the IEEE 802.3-2005 standards.

1000 Mbps Gigabit Ethernet Collision Domain

Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length

Cable Type				Maximum Cable Length			Connector
Category 5, 5e, 6 100-ohm UTP or STP				100 m (328 ft)			RJ-45

Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Length

Fiber Size		Fiber Bandwidth				Maximum Cable Length		Connector

62.5/125 micron		160 MHz/km				2-220 m (7-722 ft)		LC
multimode fiber
multimode fiber		200 MHz/km				2-275 m (7-902 ft)		LC
		200 MHz/km				2-275 m (7-902 ft)		LC

50/125 micron multimode		400 MHz/km				2-500 m (7-1641 ft)		LC
fiber
fiber		500 MHz/km				2-550 m (7-1805 ft)		LC
		500 MHz/km				2-550 m (7-1805 ft)		LC

Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length

Fiber Size		Fiber Bandwidth				Maximum Cable Length		Connector

9/125 micron		N/A				2 m - 5 km (7 ft - 3.2 miles)		LC
single-mode fiber
Table 4-4 Maximum 1000BASE-ZX Gigabit Ethernet Cable Length

Fiber Size		Fiber Bandwidth				Maximum Cable Length		Connector

9/125 micron		N/A				70 km - 100 km		LC
single-mode fiber						(43 - 62 miles)

Note: For link spans exceeding 70 km, you may need to use premium single mode fiber or dispersion shifted single mode fiber.

100 Mbps Fast Ethernet Collision Domain

Table 4-5 Maximum Fast Ethernet Cable Length

Type	Cable Type	Max. Cable Length	Connector

100BASE-TX	Category 5 or better 100-ohm UTP or STP	100 m (328 ft)	RJ-45

4-5

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Contents Installation Guide Page TigerSwitch 10/100/1000 Installation Guide Page Compliances and Safety Warnings N11846 Safety Compliance Power Cord Set France et Pérou uniquement Sein und die Aufschrift HAR oder Basec tragen Manufacturing Materials End of Product Life SpanDocumentation Viii Contents Appendix B Cables Appendix a TroubleshootingAppendix C Specifications Making Network ConnectionsAppendix D Ordering Information Glossary Index Xii Tables Figures Overview IntroductionNetwork Management Options Switch ArchitecturePort and System Status LEDs Description of Hardware10/100/1000BASE-T Ports SFP SlotsLED Expandability Features and BenefitsPower Supply Socket ConnectivityManagement Network Planning Introduction to SwitchingCollapsed Backbone Application ExamplesNetwork Aggregation Plan Network Aggregation PlanRemote Connections with Fiber Cable Remote Connections with Fiber CableMaking Vlan Connections Making Vlan ConnectionsApplication Notes Selecting a Site Installing the SwitchEthernet Cabling Package Contents Equipment ChecklistOptional Rack-Mounting Equipment Rack Mounting MountingDesktop or Shelf Mounting Installing the Switch in a RackInserting an SFP Transceiver into a Slot Installing an Optional SFP TransceiverConnecting to the Console Port Connecting to a Power SourceSerial Cable Wiring Switch’s 8-Pin Null Modem PC’s 9-Pin Wiring Map for Serial CableInstalling the Switch Cabling Guidelines Connecting Network DevicesMaking Network Connections Twisted-Pair Devices Network Wiring Connections Connecting to PCs, Servers, Hubs and SwitchesFiber Optic SFP Devices Network Wiring ConnectionsMaking Connections to SFP Transceivers Connectivity RulesMbps Gigabit Ethernet Collision Domain 1000BASE-T Cable RequirementsMbps Fast Ethernet Collision Domain Mbps Ethernet Collision Domain Cable Labeling and Connection RecordsInstallation Appendix a TroubleshootingDiagnosing Switch Indicators Power and Cooling ProblemsIn-Band Access Twisted-Pair Cable and Pin Assignments Appendix B Cables10BASE-T/100BASE-TX Pin Assignments Crossover Wiring Straight-Through WiringTwisted-Pair Cable and Pin Assignments B 1000BASE-T Pin AssignmentsAdjusting Existing Category 5 Cabling to Run 1000BASE-T Cable Testing for Existing Category 5 CableFiber Standards Physical Characteristics Appendix C SpecificationsManagement Features Switch FeaturesStandards CE Mark CompliancesSpecifications Appendix D Ordering Information Ordering Information Glossary Full Duplex End StationEthernet Fast EthernetSwitched Ports Media Access Control MACRedundant Power Supply RPS RJ-45 ConnectorVirtual LAN Vlan Transmission Control Protocol/Internet Protocol TCP/IPNumerics IndexIndex Page Technical Support