HP Compaq StorageWorks TL881 DLT Mini-Library - Manual (Page 35)

Operation 2-9
Control Panel
The Data Unit Control Panel (Figure 2–6) contains three LED indicators, a
four–line by 20–character backlit LCD display, and four pushbuttons.
Ready
Alert
Escape
Fault
Enter
SHR-1229
Figure 2-7. Data Unit Control Panel
LED Indicators
The three LED indicators on the Control Panel are labeled Ready (green),
Alert (yellow), and Fault (red).
Ready (green) - lights when the system is ready to accept commands, either
from the Control Panel or from the host computer via the Expansion Unit. The
Ready indicator goes out when you enter the Menu Mode.
Alert (yellow) - this LED has no function in the Data Unit.
Fault (red) – when this LED lights, a Fault Screen appears in the display. The
Fault Screen is described later in this chapter. A list of Fault Sympton Codes
(FSC) and Error Recovery Procedures (ERP) appears in Chapter 5 –
Troubleshooting.
Pushbuttons
The pushbuttons on the Data Unit Control Panel operate the same way as the
pushbuttons on the Expansion Unit Control Panel; refer to the description of
the pushbuttons for the Expansion Unit.