User's Manual

Configuring and Operating the DLT4000 Basic Tape Drive
DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem 3-13
3.5.4 Indicator Action during Power-On Self-Test and Operation
When you turn on system power, the drive performs the power-on self-test (POST).
The sequence of events is:
Stage What Happens
1 The indicators on the right front panel turn on sequentially from
top to bottom. All indicators stay on for a few seconds.
2 The indicators on the left front panel turn on at the same time for
about three seconds and then turn off.
3 The green Operate Handle, the orange Write Protected, and the
yellow Use Cleaning Tape indicators turn off. The yellow Tape in
Use indicator blinks while the tape drive initializes.
4 After initialization, the drive is in one of the following four states: