NETGEAR FS 726 Appendix C Cabling Guidelines, Fast Ethernet Cable Guidelines, Cabling guidelines

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APPENDIX C: CABLING GUIDELINES

This appendix provides specifications for cables used with the FS726 and FS750 Switches.

Fast Ethernet Cable Guidelines

Fast Ethernet uses UTP cable, as specified in the IEEE 802.3u standard for 100BASE-TX. The specification requires Category 5 UTP cable consisting of either two-pair or four- pair twisted insulated copper conductors bound in a single plastic sheath. Category 5 cable is certified up to 100 MHz bandwidth. 100BASE-TX operation uses one pair of wires for transmission and the other pair for receiving and for collision detection.

When installing Category 5 UTP cabling, use the following guidelines to ensure that your cables perform to the following specifications:

•Certification

Make sure that your Category 5 UTP cable has completed the Underwriters’ Laboratories (UL) or Electronic Testing Laboratories (ETL) certification process.

•Termination method

To minimize crosstalk noise, maintain the twist ratio of the cable up to the point of termination; untwist at any RJ-45 plug or patch panel should not exceed 0.5 inch (1.5 cm).

cabling guidelines

C-1

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Contents Modular Fast Ethernet Switch Certificate of the Manufacturer/Importer TrademarksStatement of Conditions Voluntary Control Council for Interference Vcci StatementEN 55024 Declaration of Conformity IiiCustomer Support Internet/World Wide WebContents Troubleshooting Information Technical SpecificationsConnector Pin Assignments Appendix C Cabling GuidelinesTables Tables Introduction DescriptionIntroduction Features Key FeaturesKey Features Additional Features Introduction Package Contents Physical Description Front and Back PanelsFront and Back Panels of the FS726 Switch Front and Back Panels of the FS750 Switch 10/100 Mbps RJ-45 PortsLED Mode Button and LED Descriptions Front Panel LEDsModule Bays Auto UplinkCreating Redundant Paths between Network Devices Example Reset Button Desktop Switching ApplicationsSegment Switching and Bridging from 10 Mbps to 100 Mbps Media Compatibility and ConversionExample of Media Compatibility and Conversion Applications Installation InstallationCharacteristics Requirements Preparing the SiteInstalling the Switch Installing the Switch on a Flat SurfaceInstalling the Switch in a Rack Connecting Devices to the Switch Connecting Devices to the Switch InstallationUsing Gigabit Ethernet Modules Checking the Installation Applying AC PowerInstallation Troubleshooting Chart TroubleshootingTroubleshooting Chart TroubleshootingTo is powered on and operating Switch Integrity Additional Troubleshooting SuggestionsConfiguration Network Adapter CardsData Rate Appendix a Technical SpecificationsNetwork Protocol and Standards Compatibility InterfacePerformance Specifications FS726 FS750Physical Specifications FS726 Environmental SpecificationsSafety Agency Approvals Electromagnetic EmissionsElectromagnetic Susceptibility Appendix B Connector PIN Assignments RJ-45 Plug and RJ-45 Connector100/1000 Mbps RJ-45 Plug and RJ-45 Connector Pin Assignments Duplex SC Plug and Duplex SC Connector Appendix C Cabling Guidelines Fast Ethernet Cable GuidelinesCabling guidelines Category 5 Cable Category 5 Cable Specifications Twisted Pair CablesTable C-1. Electrical Requirements of Category 5 Cable Figure C-1 illustrates straight-through twisted pair cable Patch Panels and Cables Cabling LengthReturn Loss Near End Cross Talk Next Patch CablesConclusion Gigabit Cable Guidelines Fiber Cable SpecificationsFiber Optic Cables Table C-2. Electrical Requirements of Fiber Optic CableIndex Index NETGEAR, Inc