Allied Telesis X600-24TS-POE+, x600-48Ts, x600-24Ts/XP, x600-24Ts-POE Implementation 10/100BASE-TX

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x600 Series Layer 3 Gigabit Ethernet Switches Installation Guide

PSU installed in the x600-24Ts-POE. This means that you can connect powered devices to all of the ports on the x600-25Ts-POE switch (excluding optional expansion ports) without having to be concerned about exceeding the available power, even if all the PD's require the maximum 15.4 watts for PoE.

However, the maximum possible PoE+ power requirement (24 ports x 30W ~ 720 watts) is above the maximum amount of power available (370W) for the PSU installed in the x600-24Ts-POE+. This means that you can connect powered devices to 12 ports on the x600-24Ts-POE+ switch (excluding optional expansion ports) without having to be concerned about exceeding the available power, even if all the PD's require the maximum 30 watts for PoE+.

Implementation 10/100BASE-TX

An Ethernet cable has four twisted pairs, but only two of these are used for data transfer. Note that both the x600-24Ts-POE and x600-24Ts-POE+ switches use the data twisted pairs. The IEEE 802.3af and IEEE 802.3at standards allow two options for using these cables for power supply.

ˆThe spare pairs are used. In this case the unused pairs are used to transfer the power. The twisted pair on pins 4 and 5 is connected to form the positive electric power supply, while the twisted pair on pins 7 and 8 is connected to form the negative power supply. Each pair can accommodate either polarity.

ˆThe data pairs are used. The twisted pair on pins 3 and 6 and the pair on pins 1 and 2 can be of either polarity. Since Ethernet pairs are transformer coupled at each end, it is possible to apply DC power to the centre tap of the isolation transformer without upsetting the data transfer.

The IEEE 802.3af and IEEE 802.3at standards do not allow both sets of wires to be used, so a choice must be made. Different vendors PSE equipment may use one or other of the methods to supply power depending on PoE implementation. The Powered Device (PD) should be able to accept power from both options.

1000BASE-TX

1000BASE-TX uses all four pairs for data transmission.

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Contents Installation Guide Page Electrical Safety and Emissions Standards Translated Safety Statements Contents Overview Preparation Installing the AT-StackXG Module List of Figures X600-24Ts-POE SwitchFigures List of Tables Tables Preface Product Documentation Starting a Management Session Symbol Meaning Description Safety Symbols Used in this DocumentWhere to Find Web-based Guides Contacting Allied Telesis Management Software UpdatesChapter OverviewIntroduction LEDs Switch DescriptionsShows the x600-24Ts/XP switch front and rear panel X600-24Ts/XP SwitchShows the x600-48Ts switch front and rear panel X600-44Ts/XP X600-48Ts/XP SwitchX600-24Ts-POE Switch X600-24Ts-POE+ Switch 10/100/1000Base-T Ports Connector Type Speed Duplex Mode Maximum DistancePort Pinouts Cable Type Auto-MDISFP Transceiver Slots XFP Transceiver Slots Models Ports and Slots Combo PortsSD Card Slot 10/100/1000 Base-T LEDs Port LEDsLED SFP LEDs x600-24 Port Switch XFP Transceiver Slot LEDs SFP LEDs x600-48 Port Switch SFP Slot LED DescriptionsXFP Slot LED State Description System Status LEDsStack LEDs Non PoE Switch Stack LEDsMstr Defined in Table Secure Digital SD LEDTerminal Port Power Over Ethernet PoE and PoE+ PoE PoE+ Enhanced PoE Differences between PoE, PoE+ and Enhanced PoE Overview Implementation 10/100BASE-TX AT-RPS3204 Redundant Power Supply Unit Redundant Power SuppliesAT-LBM Loop Back Module VCS Stacking Module AC Power Connector Overview Virtual Chassis Stacking VCStackTM Introduction Features of VCStacking Physical StackVCS Stacking Modules, Cables, and Connections Ring Configuration VCStack Recovery StatesEvent on Master Node Reaction on Reaction on Stack Resiliency Link Configurations via Switch Ports Resilient Stacked Topology Role of the Stack Master Stack FormationCommon Stack Configuration Stack Member Identification Running QoS within a VCS stack Stack Member Failure RecoveryFallback Action VCS Failure RecoveryAdding a Stack Member Stack MaintenanceVirtual Chassis Stacking Installing the Hardware Reviewing Safety Precautions X600 Layer 3 Gigabit Ethernet Switch Installation Guide Installing the Hardware Unpacking a Switch Installing the Power Cord Retaining Clip Actactivity Installing the Switches in an Equipment RackMounting the Switch in a Rack 24Ts/XP Resetting the SwitchVC Stacking Module Installation Installing AT-StackXG Module Securing the AT-StackXG Stacking Module Software Reference Installing the Hardware Cabling the Network Ports Twisted Pair Cable Specifications Twisted Pair and Fiber Optic SpecificationsSFP/XFP Transceiver SpecificationsInstalling an SFP Transceiver Installing SFP/XFP Transceivers1331 1334 Installing an XFP Transceiver Installing an XFP TransceiverCabling the Network Ports Cabling the 10/100/1000Base-T and Fiber Optic Ports Connecting the AC Power Cord Powering on a SwitchStarting a Local Management Session Cabling the Network Ports Warranty Registration Cabling the Network Ports Troubleshooting Power LED is Off Twisted Pair Port Link LED is Off SFP or XFP LED is Off Transceiver is Installed but the Status is Not Present System Fault LED is Blinking System Fault LED is Steadily On Cannot Establish a Local Out-of-Band Management Session Switch Functions Intermittently Issues with Virtual Stacking Chassis Configuration Technical Specifications Physical SpecificationsAppendix a Power Specifications Environmental SpecificationsCertifications RJ-45 Twisted Pair Port Pinouts Pin SignalPinout Pair RJ-45 Style Serial Terminal Port Pinouts AT-RPS3104 17-pin Connector PinoutsPin Definition AT-RPS3204 21-pin D-combo Port and Connector Pinouts Pin Appendix a Technical Specifications 112
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