3Com 4200G PWR Getting Started Manual

Also see for 4200G 12-Port: Product guide Quick reference guide Configuration guide Quick reference guide Configuration guide

Contents

3Com 4200G PWR Getting Started Manual Manual pdf 18 page image

18 CHAPTER 1: INTRODUCING THE SWITCH 4200G FAMILYLEDs Table 5 lists LEDs visible on the front of the Switch, and how to read theirstatus. For information on using the LEDs for problem solving, see“Solving Problems Indicated by LEDs” on page 54.Rotating bar segment Mode LED flashing green Software download in progress.Flashing “F” Mode LED steady red Fan failure detected.Flashing “t” Mode LED flashing red Switch is too hot; temperature is critical.“C” Mode LED green or yellow Switch is clustered Commander unit.“c” Mode LED green or yellow Switch is clustered Candidate unit.“S” Mode LED green or yellow Switch is clustered Slave unit.“1” Mode LED green or yellow Switch is un-clustered.Table 4 Status Display (continued)Display Mode LED Color DescriptionTable 5 LED BehaviorLED Color IndicatesPWR LEDGreen The Switch is powered-up and operating normally.Green flashing Self Test (POST) or Software Download is in progress.Yellow flashing One or more ports have failed POST.Red The Switch has failed its Power On Self Test.Off The Switch is not receiving power or there is a fault with thePower Supply Unit.Mode LEDSpeed Green 10/100 Port Speed and Activity, Gigabit SFP Status andActivity, or Stack Status and Activity.Duplex Yellow 10/100 Duplex and Activity, Gigabit SFP Duplex andActivity, or Stack Activity.10/100/1000BASE-T Port LEDsSpeed Green A high speed (1000 Mbps) link is present, blinking off forevery packet received or transmitted.Yellow A low speed link is present, blinking off for every packetreceived or transmitted.Yellow Flashing The port has failed POST.Off No link is present.10014914AA.book Page 18 Friday, July 7, 2006 2:08 PM