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28 Board Interfaces

System LEDs

Table 4-1: cPCI-3620 Front Panel System LED Descriptions

1. Power LED is controlled by hardware power.

2. WDT LED is controlled by BMC (SEMA), and users can define

it using SEMA.

3. HDD LED is controlled by the SoC.

4. Thermal LED is controlled by BMC (SEMA); the system will

continue to operate when the LED is triggered.

5. GPIO LED is controlled by BIOS.

LED Color Condition Indication

Power

Green/

Red

OFF System is off

Green Post OK

WDT

Orange

OFF No Watchdog event

Blinking Watchdog event alert

HDD

Blue

OFF No SATA drive activity

Blinking

Data read/write in process for CF/CFast/

SATA HDD

Thermal

Red

OFF Board temperature is below 85°C

Board temperature equals or exceeds

85°C

GPIO

Yellow

OFF Defined by user

ON/Blinking Defined by user

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