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Allied Telesis AT-FS750/24POE MDI-X Pin Signals 10Base-T or 100Base-TX, 1 RX+ 2 RX 3 TX+ 6 TX

Models: AT-FS750/24POE

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Table 9. MDI-X Pin Signals (10Base-T or 100Base-TX)

AT-FS750/24POE Fast Ethernet Smart Switch Installation Guide

Table 9 lists the RJ-45 port pin signals when a twisted pair port is operating in the MDI-X configuration.

Table 9. MDI-X Pin Signals (10Base-T or 100Base-TX)

Pin

Signal

1RX+

2RX-

3TX+

6TX-

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Allied Telesis AT-FS750/24POE manual MDI-X Pin Signals 10Base-T or 100Base-TX, 1 RX+ 2 RX 3 TX+ 6 TX

Contents

AT-FS750/24POE Installation GuideFast Ethernet Smart Switch Copyright 2008 Allied Telesis, Inc FCC Class A, EN55022 Class A, CISPR Class A, C-TICK, CE Electrical Safety and Emissions StandardsU.S. Federal Communications Commission Radiated EnergyTranslated Safety Statements Contents Physical Specifications ContentsEnvironmental Specifications Power SpecificationsFigure 1. RJ-45 Connector and Port Pin Layout FiguresTables Table 1. Safety Symbols TablesIEEE 802.3af Class vs. Power Levels MDI Pin Signals 10Base-T or 100Base-TXTables ˆ “Safety Symbols Used in this Document” on page Prefaceˆ “Where to Find Web-based Guides” on page ˆ “Contacting Allied Telesis” on pageSymbol Safety Symbols Used in this DocumentMeaning DescriptionAT-FS750/24POE Fast Ethernet Smart Switch Installation Guide Where to Find Web-based GuidesContacting Allied Telesis WarrantyOnline Support Email and Telephone Support Returning Products For Sales or Corporate InformationChapter OverviewFeatures System LEDs 10/100Base Twisted Pair Ports Front and Back PanelsUplink Combo Ports Port LEDsTwisted Pair Ports PortsUplink Combo Ports connected, the SFP port takes precedent over the twisted pair port AT-FS750/24POE Fast Ethernet Smart Switch Installation Guide10/100Base-T POE Port LEDs LEDsState DescriptionDescription 10/100Base-T Non-POE Port LEDsState Description Uplink Combo Port LEDsState Description StateFor the power requirements, refer to “Power Specifications” on page Power SupplyPower over Ethernet Maximum Power Minimum PowerClass UsageMAC Address Table Duplex Mode Ethernet Switching BasicsBack Pressure and Flow Control Store and Forwarddata again, the switch stops forcing collisions. This is referred to as back pressure Network Topologies Power Workgroup TopologyCollapsed Backbone Chapter 1 Overview Chapter InstallationReviewing Safety Precautions Circuit Overloading Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern. E21 Selecting a Site for the Switch Maximum CablingSpeed Type of CableUnpacking the Switch Installing the Switch on a Desktop Installing a Switch in a Rack AT-FS750/24POE Fast Ethernet Smart Switch Installation Guide Chapter 2 Installation Installing an Optional SFP Transceiver Figure 12. Inserting the SFP Connecting the Fiber Optic Cables Cabling and Powering On the SwitchConnecting the Twisted Pair Cables Powering On the Switch Figure 16. Plugging in the AC Power Cord Starting a Management Session Chapter TroubleshootingChapter 3 Troubleshooting Physical Specifications Technical SpecificationsEnvironmental Specifications Power SpecificationsSignal Safety and Electromagnetic Emissions CertificationsConnectors and Port Pinouts 1 RX+ 2 RX 3 TX+ 6 TX Table 9. MDI-X Pin Signals 10Base-T or 100Base-TXSignal Appendix A Technical Specifications