Chapter 2. Using the Model H80
This chapter discusses system power control and use of options such as the
keyboard, mouse, and drives supported by the Model H80.

Operator Panel

The following diagram shows the locations of the operator panel display and
components of the operator panel.
R
12
5
3
4
6

Scrolling Ball Indicator

The first time ac power is connected to the system, or whenever ac power is
disconnected from the system and then reconnected, a scrolling ball that moves from
left to right may be visible in the operator panel display before the first 8xxx progress
code appears; it might not display long enough to be visible. If seen, it may remain in
the operator panel display for a time of less than one second, or up to three to five
seconds, depending on the system and configuration.
1 Power On/Off Button 4 Reset Button
2 Power On/Off LED 5 Disturbance or System Attention LED
3 Operator Panel Display
Chapter 2. Using the Model H80 3