Front Operator Panel



Front Operator Panel

The front panel (front operator panel) incorporates the standard function for System Maintenance Adapter Reporting Trouble (SMART).

This panel consists of the following:


Front Panel Buttons 

The front operator panel contains seven buttons.

 


Menu Buttons and Enter Button 

These buttons are currently non-functional.

Power Enable Button 

The power enable button acts as a logical emergency power-off switch. When pressed (set to off), the computer's power is immediately removed, all automatic and remote power-on functions are disabled, and the computer will not power-on until the power enable button is pressed again.

NOTE: This power enable button does not remove AC power from the power supply or the service processor logic on the system board (See also 'Starting or Stopping the System')

Start/Stop Button 

The start/stop button implements manual power-on/off functions under software control. (See also 'Starting or Stopping the System')

Light Emitting Diodes/Liquid Crystal Display 

 


Light Emitting Diodes 

The following is a list of the front operator panel light emitting diodes (LEDs) followed by the definition for each LED.

COLOR Indications


 LED Number             Definition
     1              Hard disk drive activity
     2              DASD Error
     3              Processor Complex Error
     4              Color green (POWER GOOD)
     5              Color green (POWER Enabled)
     6              Color green (ALL Subsystems Good)

Liquid Crystal Display 

The Liquid Crystal Display (LCD) on the front panel contains a 2-line by 16-character LCD (front panel display) driven by the 80C752 microprocessor. The front panel display receives and transmits ASCII characters. The LCD supports the upper- and lower-case ASCII character set.

Errors detected by the computer might be displayed on the LCD and/or on the standard display attached to the computer. This is helpful when a display is not attached to the computer or the attached display is inoperative.

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