SECTION 3 LED INDICATIONSThe LEDs on the CPU indicate the following:• RUN (D1) = The CPU is operating (Green)• ALM (D2) = Alarm (Red)• Refer to Program 90-10: System Alarm Setup for details on assigning alarm LEDs.Table 4-1 CPU LED Indications on page 4-15 provides a list of each LED and associated operationand status indications.ST 100 1G ACTLOADRUNETHERNET VOIPDBEXP1 EXP2ALMRUN (D1) LED: GreenCPU board < Front view >ALM (D2) LED: RedFigure 4-24 Location of the LEDs on the CPU BoardThe priority order (No.1 ~ 16) is set up to each status and when more than one different status areoccurred, the highest priority LED indication pattern (status) will be indicated.Table 4-1 CPU LED IndicationsPriorityNo. Status LED IndicationRUN (D1): Green ALM (D2): Red1 When system has started Up (only U-boot is execute) Off Off2 Shutting down accept status (going to be powered off) 500ms On / 500ms Off Off3 Boot error On 1s On / 1s Off4 DSP/FPGA Download Error Off 100ms On / 100ms Off5 Security Tip Error 100ms On / 100ms Off 100ms On / 100ms Off6 Reading Error of System Program 1s On / 1s Off 100ms On / 100ms Off7 Completed the System Program Upgrade 1s On / 1s Off 1s On / 1s Off8 Initializing System Program Off On9 DSP/FPGA downloading Off 1s On / 1s Off10 Boot is starting On Off11 IP address lease request 300ms On / 200ms Off /300ms On / 200ms Off /300ms On / 700ms OffOff12 DHCP Reset request 300ms On / 200ms Off /300ms On / 200ms Off /300ms On / 700ms OffOn13 File accessing (SD Memory card/Flash ROM data is up-dating)100ms On / 100ms Off /100ms On / 100ms Off /100ms On / 500ms OffOff14 Error alarm (Major) occurred 100ms On / 100ms Off 1s On / 1s Off15 Error alarm (Minor) occurred 1s On / 1s Off On16 System Operating Normally 1s On / 1s Off OffISSUE 1.0 SL2100Hardware Manual 4-15
