ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
Medium Changer Elements
2-5
Medium Transport Element
The library has a transport mechanism. This mechanism consists of the
horizontal, vertical and extension axes and a gripper.
The transport mechanism can hold a single cartridge using the gripper
and is considered one medium transport element. The transport
mechanism is used to move media between elements within the
library unit.
Storage Elements
Each library unit contains up to 48 storage elements, which correspond
to the bins in the FSA. One storage element exists per bin.
Import/Export (Load Port) Elements
The import/export mechanism consists of a four-bin, rotating Load
Port. Each of the four bins in the Load Port has a unique element
address.
When the door is open the elements still exist, but are not “accessible”
to the medium transport.
Data Transfer Elements
A data transfer element is associated with every tape drive installed in
a library unit since each tape drive can store a single tape cartridge.
The medium transport mechanism is able to load or unload tape
cartridges into or from each tape drive.