Front Panel User Interface

The BMC provides control panel interface functionality including indicators (fault, status, and ID LEDs) and buttons (power/ID).

Power Button

The power button turns the device on and off.

The power button has a deferred mechanism. When the DC is off the power button ignores one (1) second or less activation to protect against accidental DC power on.

LEDs

BMC Heartbeat LED

The green LED provides an easy way to indicate that BMC is now enabled.

ID LED

A blinking LED indicates the Chassis Identify command has been accepted.

System Status LED

There is a dual-color LED to show the system status. The BMC turns the LED off after all event logs are cleared.

The behavior of Status LED and ID LED is listed in Table 1-2.

Table 1-4. LED Status

LED

Color

Status

Occurrence

Note

 

 

 

 

Status LED

Amber Blinking

See "Blinking Fault

 

 

 

 

LED Conditions" on

 

 

 

 

page 14.

 

 

 

Off

Normal status

 

 

Green

Solid On Power On (S1/S0)

The power LED status is

 

 

Off

Power Off (S4/S5)

controlled by BIOS.

 

 

 

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Dell C5220 manual Front Panel User Interface, Power Button, LEDs, BMC Heartbeat LED, System Status LED