8: Status Light BehaviorUBox User Guide 60Figure 8-2. UBox 2100 LEDsThe meaning of these lights changes depending on whether the UBox is booting up(you have just turned on the UBox), or if it is running.The two tables on the following pages show all of the possible states of these LEDlights and what they mean. If you are having problems with your UBox, please usethis information in conjunction with the information in 7: Troubleshooting to diagnosethe problem.Note: SYSTEM lights 2 and 3 on the UBox 4100 are red; they are amber on theUBox 2100.Figure 8-3. UBox Status Lights—UBox is Booting UPStage Status TroubleshootingSTAGE 1UBox Is BootingUpWhen you first power on the USBUBox, the (red or amber)SYSTEM 3 light is ON while theUBox is booting.If this light never goes off or the 4(green) USB lights never comeon, you may have a hardwarefailure. Please contact LantronixTech Support.If SYSTEM 1 (green) andSYSTEM 2 (red/amber) blinkalternately, the UBox firmware hasfailed to update or load. Pleasecontact Lantronix Tech Support.STAGE 2Firmware LoadingThe (green) USB 1-4 lights areturned ON as the firmware startsrunning.If SYSTEM 2 and 3 never stopblinking, the UBox is not finding avalid Ethernet connection, or youhave configured the UBox to usean invalid IP address. Pleasecontact Lantronix Tech Support forfurther details.SYSTEM4 3 2 11 2 3NETWORKUSB 12
