Digital Equipment AlphaServer 2000, Owner'S Manual

Page: 70 / 196

Operator Control Panel (OCP)
Operator Control Panel (OCP)
The operator control panel, shown in Figure 2–1, is located on
the front of the system. It contains a diagnostic display and
buttons that let you power, halt, and reset the system.
Figure 2–1 Operator Control Panel
2
MA00071
1
Power-Up
Display Power-Up/Diagnostic Display
The power-up/diagnostic display
"
displays system status
messages during power-up and diagnostics. Use the display to
check the results of system self-tests. A potentiometer
!
allows
you to adjust the contrast on the display.
For information about interpreting specific messages, refer to
‘‘Interpreting the Operator Control Panel Power-Up Display’’ in
Chapter 4.
DC On/Off
Button
DC On/Off
The DC On/Off button controls the flow of DC power to the
system. Use the DC On/Off button to power the system up or
down. The DC On/Off light, located on the DC On/Off button, is
lit whenever DC power is present.
2–2 Hardware Components