Allied Telesis AT-GS900/8PS manual Describes the LEDs for the SFP slots SFP Slot LEDs

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Chapter 1: Overview

Table 5 describes the LEDs for the SFP slots.

Table 5. SFP Slot LEDs

LED

State

Description

 

 

 

 

 

 

 

Solid Green

The SFP transceiver has established a link

 

 

with a network device, but is not transmitting

L/A (link/

 

or receiving network packets.

 

 

Blinking

The SFP transceiver is transmitting or

activity)

Green

receiving network packets.

 

 

 

 

 

 

The port on the SFP transceiver has not

 

Off

established a link with an end-node or the

 

 

transceiver slot is empty.

 

 

 

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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 Troubleshooting Power LED OFFTwisted Pair Port LINK/ACT 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