DC OK Indicator
— A green indicator that shows the power supply
voltages are within the correct operating range. If the indicator is not
lit when system power is on, refer to your system
Troubleshooting and
Diagnostics
manual.
Halt Button
— A two-position button. When you press it, the system
halts. A red indicator on the button lights when the button is set to the
in position. Before you enter console commands, press the button again
to return it to the out position. When the button is returned to the
out position, the console mode prompt (
>>>
) is displayed on the console
terminal. Now you can enter console commands. If you inadvertently
press the Halt button, type C
Return
to continue. Chapter 2 describes
halting your system in more detail.
CAUTION
Pressing the Halt button halts the system regardless of the
setting of the Break Enable/Disable switch on the console
module.
Restart Button
— It has a green indicator. When you press the
button, the system returns to a power-up condition and self-tests are
run. If you specified a boot device and if the Break/Enable Disable
switch is set to disable, the system will reboot system software.
Further instructions on restarting your system are in Chapter 2.
Note
The Halt and Restart buttons can be disabled to prevent accidental use.
Contact your Digital service representative if you want to disable those
controls.
System Overview 1–9
