The callouts in Figure 2–20 point to these components on the control panel:
➊ Secure LED – When lit, indicates that the keyswitch is in the Secure position and system is powered on. All pushbuttons and SCM functions are disabled, including remote access to the system.
➋ Power OK LED – When lit, indicates at least one QBB is powered on and remote console operations are enabled. The keyswitch is in the On position.
➌ Halt LED – When lit with the Power LED, indicates the system is powered on, remote console operations are enabled, and the Halt pushbutton is pressed.
When lit with both Power LED and Secure LED, indicates a powered on system, disabled remote console operations, and Halt pushbutton is pressed in.
➍ Diagnostic display indicates system status.
➎ Off switch position – System is powered off and cannot be powered on remotely.
➏On switch position – System is enabled to be powered up. A remote system user can power on or power off the system.
➐Secure switch position – System is powered on and cannot be remotely powered on or off. All pushbuttons and SCM functions are disabled.
➑Halt pushbutton – Pressing this pushbutton causes the operating system to perform a halt, with no captured error information. The system will automatically reset if the auto_fault_reset environment variable is enabled.
➒Fault pushbutton – Pressing this pushbutton causes a system reset without clearing captured error information in the control and status registers.
➓Reset pushbutton – Pressing this pushbutton causes a system reset that clears captured error information.
