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Figure 13 on page 16 shows the following functional components of the Model HA1,
Right Service Bay from the right front:
1 Cartridge storage cells
Are located on the interior side of the front doors on the 3494 and on the
back interior wall but are for service use only.
2 Barrier door
Used by service personnel to separate the service bay from the main aisle
of the 3494. This allows for concurrent service of the accessor and the
associated hardware.
3Hot standby library manager
The Hot Standby Library Manager can take control of all operations in the
3494. Its hardware consists of a controller, display, pointing device, and
keyboard. An optional Remote Library Manager Console feature is also
available for remote installation on a Local Area Network (LAN)
environment.
Hot standby accessor or second active accessor (not visible)
Moves on horizontal and vertical axes, moving cartridges between the
storage cells, devices, and input and output facilities. The vision system
(barcode reader) on the cartridge accessor identifies cartridges. This
accessor can be controlled by either Library Manager.
Picker (not visible)
The part of the cartridge accessor that picks the cartridges. The picker
comes standard with one gripper installed or two grippers if the optional
Dual Gripper feature is installed.
Figure 12. Model HA1, Left Service Bay Functional Components (right front)
Chapter 1. Introduction 15