Front Panel And Media Locks; Starting The System; Display Messages - Overland Data DLT LibraryXpress Series Service Manual

Front Panel and Media Locks

To avoid accidental interruption of system operation by entering the Menu Mode or removing
cartridges while the host is accessing the system, the front panel and the media for each
module may be electronically locked. When the front panel of the Global Control Module is
locked, you can only enter the Menu Mode after entering a 4-digit code. That is, when the
Default Screen is displayed, pressing the
you enter the code. The front panel of a slave module cannot be unlocked without using the
Security submenu on the Global Control Module to unlock it.
Media located in any or all modules may be locked and unlocked using the Security submenu
on the Global Control Module. When the media are locked, you can only remove media after
unlocking the module from the Global Control Module using the Security submenu.
Procedures for locking and unlocking front panels and media are described later in this
chapter.

Starting the System

Note: When turning on power to the DLT LibraryXpress System, power must be applied to
the Global Control Module either simultaneously with or after the other modules. If the Global
Control Module is powered on first, its inventory of modules may be incorrect, and the
contents of some or all of the modules will be inaccessible to the system and to the host.

Display Messages

The display on the control panel is capable of displaying four lines of 20 characters each, to
allow the use of easy-to-understand messages. Many of these messages and their functions are
described in this chapter. Those displays that are described in other chapters are cross-
referenced here as well.
Power-On Self Test Screen
When power is first applied to the module, a series of power-on self test (POST) diagnostics
are performed. During POST execution, the model number of the module, the firmware
revision, the status or result of the test in progress and the current date and time are displayed
on the control panel as shown in figure 3-4.
50
button does not invoke the Menu Mode until
Enter
OVERLAND LXG
Firmware Level 0X.xx
Checking Hardware
26-Feb-19xx 15:35:59
Figure 3-4 POST Screen
Chapter 3 - Operation