HP SW TL881 DLT Mini-Lib/1 Compaq TL881 MiniLibrary System Users Guide (May 19 - Page 72

Mechanical Installation, Identifying the Parts of the Pass-Thru, Mechanism

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Installation 3-3 to help localize system failures. When installed, the motor drive assembly of the Pass-Thru mechanism is directly behind the Expansion Unit. Data Units and MiniLibrary Base Modules may be installed anywhere below the Expansion Unit, in any order. There may be a slight performance advantage in making the MiniLibrary Base Modules contiguous, but gaps are permitted. The size of a gap is limited by the fact that each gap must be bridged by some number of 7" Pass-Thru mechanism track sections. For safety, available cover plates should be installed on all Pass-Thru mechanism sections which are not connected to MiniLibrary System modules. The Expansion Unit senses the position of each module during initialization at power-up. Even if there are gaps between modules, the system will operate correctly. If you plan to leave gaps between modules, be sure to order additional Pass-Thru mechanism track segments and cover plates equal to the length of the gap. Mechanical Installation Assembly of the Pass-Thru mechanism requires experience working with moderately complex mechanisms, and the ability to follow directions carefully. Identifying the Parts of the Pass-Thru Mechanism Locate and identify the Pass-Thru mechanism internal and external parts. The Pass-Thru mechanism is made up of the following external parts, shown in Figure 3-1:

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Installation
3-3
to help localize system failures. When installed, the motor drive assembly of
the Pass-Thru mechanism is directly behind the Expansion Unit.
Data Units and MiniLibrary Base Modules may be installed anywhere below
the Expansion Unit, in any order. There may be a slight performance
advantage in making the MiniLibrary Base Modules contiguous, but gaps are
permitted. The size of a gap is limited by the fact that each gap must be
bridged by some number of 7” Pass-Thru mechanism track sections. For
safety, available cover plates should be installed on all Pass-Thru mechanism
sections which are not connected to MiniLibrary System modules.
The Expansion Unit senses the position of each module during initialization at
power-up. Even if there are gaps between modules, the system will operate
correctly. If you plan to leave gaps between modules, be sure to order
additional Pass-Thru mechanism track segments and cover plates equal to the
length of the gap.
Mechanical Installation
Assembly of the Pass-Thru mechanism requires experience working with
moderately complex mechanisms, and the ability to follow directions
carefully.
Identifying the Parts of the Pass-Thru
Mechanism
Locate and identify the Pass-Thru mechanism internal and external parts. The
Pass-Thru mechanism is made up of the following external parts, shown in
Figure 3-1: