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2-4 Overview
DOC D00 025-A
Hardware components
The AMU hardware consists of:
• A computer (AML controller) with screen, keyboard and trackball or
mouse
• Programmable Multi-Axis Controller (PMAC board)
• Network board (Token Ring, Ethernet or FDDI)
Software components
The AMU software components are:
• Operating system OS/2
• Communication Manager/2 , TCP/IP
• Database Manager/2
• AML Management Software (AMS)
Tasks of the AMU:
• Host communication
− interprets the commands coming from the host computer
− checks these commands for executability
• Archive catalogue administration
− stores the logical coordinates of the compartments
− assigns the cartridges to the compartments
− knows the status of compartments and drives
− stores information on scratchpool administration
• Conversion of the logical coordinates into physical coordinates
• Communication with the control unit
• User interface
− for start-up
− for service
− for the operator
• Configuration (describes the individual structure of the archive)
Information
The AMU does not register the data contents of the cartridges.