HP Compaq StorageWorks TL881 DLT Mini-Library - Manual (Page 21)

Introduction 1-7
System firmware integrates all of the robotics of these system modules with
that of the Pass-Thru Mechanism into a single high-performance library
robotics system.
Features
There are a number of important external features to note about the Expansion
Unit, the MiniLibrary Base Module and the Data Unit. See Figures 1–1
through 1–7 to locate the features described here.
Control Panel
The control panels for all modules are the same, except for the number of LED
indicators. The control panel features a 4-line by 20-character backlit LCD
display, three or four LED indicators, and four buttons. The buttons enable the
operator to navigate through the menu structure to select and display operating
modes, device status, diagnostic and maintenance functions, device history and
error statistics, and system configuration. The functions of the control panel
are described in detail in Chapter 2, Operation.
Display
The backlit 4-line by 20-character control panel display provides a highly
intelligible presentation of drive and loader status, menu choices and error
messages. The scrolling feature greatly expands the amount of information
available to the operator. In the Expansion Unit, status information is available
for the entire system. The MiniLibrary Base Modules display other
information as needed for localizing malfunctions.
Magazine Security Lock
The Magazine Security Lock is a key-operated switch on the front panel of
each module. It can be used to prevent inadvertent removal of the cartridge
magazine.
Power Supply
The AC Power switch is located on the front panel of the module. The
autoranging power supply will adjust automatically to either of two operating
voltage ranges. The ranges are 100-120 VAC and 200-240 VAC. The power
supply is capable of operating at 50 or 60 Hz without any adjustment or
modification. AC power is supplied to the power supply by a single IEC-
compatible socket that can be connected to any properly grounded outlet.