Compaq AlphaServer DS20E Reference Manual page 25

Power button. This button is a latching switch. Pressing the
Power button on powers on the system. Pressing the button to
standby turns off all DC voltages except Aux 5 volts. The 5 volt
standby powers the remote management console (RMC). See
Chapter 6.
Power LED (green). Lights when the Power button is pressed.
Reset button. A momentary contact switch that restarts the
system and reinitializes the console firmware.
Halt LED. Halt condition (yellow). Lights when you press the
Halt button.
Halt button. Halts the system. Momentary contact switch.
Diagnostic LEDs. Programmable by software. Blink at various
console states. See Chapter 8 for details.
Remote Commands
If the system is being managed remotely, commands issued at the remote
management console (RMC) can be used to emulate the functions of the
operator control panel. See Chapter 6.
RMC Command
poweron
poweroff
reset
halt
haltin
haltout
All manuals and user guides at all-guides.com
Function
Turns on power. Emulates pressing the Power
button to the On position.
Turns off power. Emulates pressing the Power
button to the Off position.
Resets the system. Emulates pressing the
Reset button.
Halts the system.
Halts the system and causes the halt to remain
asserted.
Releases a halt created with haltin.
System Overview 1-9