Allied Telesis AT-GS900/8PS manual Reviewing Safety Precautions

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Reviewing Safety Precautions

Please review the following safety precautions before you begin to install the chassis or any of its components.

Note

The indicates that a translation of the safety statement is available in a PDF document titled Translated Safety Statements. See “Contacting Allied Telesis” on page 13

Warning

To prevent electric shock, do not remove the cover. No user- serviceable parts inside. This unit contains hazardous voltages and should only be opened by a trained and qualified technician. To avoid the possibility of electric shock, disconnect electric power to the product before connecting or disconnecting the cables. E1

Warning

Do not work on equipment or cables during periods of lightning activity. E2

Warning

Power cord is used as a disconnection device. To de-energize equipment, disconnect the power cord. E3

Warning

Class I Equipment. This equipment must be earthed. The power plug must be connected to a properly wired earth ground socket outlet. An improperly wired socket outlet could place hazardous voltages on accessible metal parts. E4

Pluggable Equipment. The socket outlet shall be installed near the equipment and shall be easily accessible. E5

Caution

Air vents must not be blocked and must have free access to the room ambient air for cooling. E6

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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 Overview ChapterFeatures LEDs PoE Ports SFP SlotsPower over Ethernet Front and Back Panels Back PanelMDI/MDI-X Mode Twisted Pair PortsAuto-Negotiation Mode Flow Control and Back Pressure SFP Port LEDs DescriptionTotal 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 Slow Network Performance LINK/ACT LED Intermittently BlinkingPowered Device Not Receiving Power Resetting Blinking PoE Port LED Troubleshooting Technical Specifications Physical SpecificationsEnvironmental Specifications Power SpecificationsPoE Specifications Safety and Electromagnetic Emissions CertificationsConnectors and Port Pinouts Pin SignalPin Pair Signal