Allied Telesis AT-GS900/8PS manual Preface

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Preface

This guide contains the installation instructions for the AT-GS900/8PS Gigabit Ethernet POE+ Switch. This preface contains the following sections:

“Symbol Conventions” on page 12

“Contacting Allied Telesis” on page 13

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Contents AT-GS900/8PS Installation Guide Copyright 2012 Allied Telesis, Inc Electrical Safety and Emissions Standards Translated Safety Statements Contents Page Figures Figures Tables Tables Preface Symbol Conventions Contacting Allied Telesis Preface Chapter OverviewLEDs PoE Ports SFP Slots FeaturesPower over Ethernet Back Panel Front and Back PanelsTwisted Pair Ports MDI/MDI-X ModeAuto-Negotiation Mode Flow Control and Back Pressure SFP Port Description LEDsTotal PoE delivered power is between 70 W Describes the LEDs for the SFP slots SFP Slot LEDs Power Over Ethernet PoE Power Budget PoE Guard Band Overview Wiring Implementation Power Supply Installation Reviewing Safety Precautions AT-GS900/8PS Switch Installation Guide Selecting a Site for the Switch Unpacking the Switch AT-GS900/8PS Switch Items Installing the Switch on a Desktop Installing the Switch in an Equipment Rack AT-GS900/8PS Switch Installation Guide Installing the Switch on a Wall AT-GS900/8PS Switch Installation Guide Installation Installing Optional SFP Transceiver Installation Cabling the Switch Powering On the Switch Twisted Pair Port LINK/ACT LED Off TroubleshootingPower LED OFF SFP Port LINK/ACT LED Off LINK/ACT LED Intermittently Blinking Slow Network PerformancePowered Device Not Receiving Power Resetting Blinking PoE Port LED Troubleshooting Power Specifications Technical SpecificationsPhysical Specifications Environmental SpecificationsSafety and Electromagnetic Emissions Certifications PoE SpecificationsPin Signal Connectors and Port PinoutsPin Pair Signal