Accton Technology ES4324 manual Connectivity Rules, 1000BASE-T Cable Requirements

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4 Making Network Connections

Connectivity Rules

When adding hubs (repeaters) to your network, please follow the connectivity rules listed in the manuals for these products. However, note that because switches break up the path for connected devices into separate collision domains, you should not include the switch or connected cabling in your calculations for cascade length involving other devices.

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 Fiber Optic Cable Length

Fiber Diameter	Fiber Bandwidth		Cable Length Range			Connector

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


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


Table 4-3 Maximum 1000BASE-LX Fiber Optic Cable Length

Fiber Diameter	Fiber Bandwidth		Cable Length Range			Connector

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

Fiber Diameter	Fiber Bandwidth		Cable Length Range			Connector

9/125 micron single-mode fiber	N/A		2 m - 70 km		LC
			(7 feet - 43 miles)

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Contents Powered by Accton Page Port Gigabit Lite Switch ES4324 E092007-AP-R01 150200057600A Compliances and Safety Warnings CE Mark Declaration of Conformance for EMI and Safety EEC Safety Compliance Or Nema 6-15P 15 A, 250 V configuration France et Pérou uniquement Die Aufschrift HAR oder Basec tragen Environmental Statement Viii Contents Appendix a Troubleshooting Appendix C SpecificationsMaking Network Connections Appendix B CablesTables Figures Introduction OverviewSwitch Architecture Description of HardwareNetwork Management Options 10/100/1000BASE-T PortsPort and Power Status LEDs LEDFeatures and Benefits Power Supply SocketConnectivity ExpandabilityManagement Introduction Introduction to Switching Network PlanningApplication Examples Collapsed BackboneCentral Wiring Closet Central Wiring ClosetRemote Connections with Fiber Cable Remote Connections with Fiber CableMaking Vlan Connections VlanApplication Notes Selecting a Site Installing the SwitchEthernet Cabling Package Contents Equipment ChecklistOptional Rack-Mounting Equipment Mounting Rack MountingInstalling the Switch in a Rack Desktop or Shelf MountingInstalling an Optional SFP Transceiver Inserting an SFP Transceiver into a SlotConnecting to a Power Source Power SocketConnecting Network Devices Making Network ConnectionsTwisted-Pair Devices Cabling GuidelinesConnecting to PCs, Servers, Hubs and Switches Making Twisted-Pair ConnectionsNetwork Wiring Connections Wiring Closet ConnectionsFiber Optic SFP Devices Making Connections to SFP Transceivers 1000BASE-T Cable Requirements Connectivity RulesMbps Gigabit Ethernet Collision Domain Mbps Fast Ethernet Collision Domain Mbps Ethernet Collision DomainCable Labeling and Connection Records Diagnosing Switch Indicators Appendix a TroubleshootingPower and Cooling Problems Installation In-Band AccessTwisted-Pair Cable and Pin Assignments Appendix B Cables10BASE-T/100BASE-TX Pin Assignments Straight-Through Wiring CablesCrossover Wiring 1000BASE-T Pin AssignmentsAdjusting Existing Category 5 Cabling to Run 1000BASE-T Cable Testing for Existing Category 5 CableFiber Standards Appendix C Specifications Physical CharacteristicsManagement Features Switch FeaturesStandards Compliances Specifications Glossary End Station EthernetFast Ethernet Full DuplexMedia Access Control MAC Ieee 802.3zLAN Segment LayerRedundant Power Supply RPS RJ-45 ConnectorSwitched Ports Transmission Control Protocol/Internet Protocol TCP/IPIndex NumericsIndex-2 Page ES4324 E092007-AP-R01 150200057600A