SECTION 4 LED INDICATIONSThe LEDs on the CPU indicate the following:• RUN (D1) = The CPU is operating (Blue)• D2, and D3 = Alarms (Red)• D4 = Flash access indication (Red)• D5 = Boot status (Red)• Refer to Program 90-10: System Alarm Setup for details on assigning alarm LEDs.Table 4-2 CPU LED Indications on page 4-14 provides a list of each LED and associated operationand status indications. Refer to Figure 4-17 Inserting the CF card on page 4-11 for the location of theLEDs on the CPU.Table 4-2 CPU LED IndicationsStatus LED IndicationRUN (D1) D2 D3 D4 D5System Operating Normally Blinking Off Off Off OffSystem Operate Normal + File accessing Blinking Off Off AccessBlinkingOffSystem Starting Up On Off Off Off OffBoot is starting On Off Off Off BlinkingInitializing the disk or formatting Blinking Off Off Off OffReading System Program Blinking Off On AccessBlinkingOffReading Error of System Program Off On Off Off OffSystem Initializing + DSP loading process On Off On AccessBlinkingOffInitializing System Program Blinking Off On AccessBlinkingOffUpgrading System Program (in the Flash Memory) Off Blinking Off AccessBlinkingOffBatch file Error Off On On Off OffCompleted the System Program Upgrade Off Blinking Blinking Blinking OffSecurity Tip Error Off Blinking Off Off OffError alarm (Major) occurred Blinking Blinking Off Off OffError alarm (Minor) occurred Blinking Blinking Off Off OffShutting Down Blinking Off Off Off OffPower Off Off Off Off Off OffSL1100 ISSUE 5.04-14 Maintenance
