Tandberg Data SDLT220-320 INTEGRATION, Руководство по эксплуатации продукта

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CHAPTER 2: SDLT 220/320 Product Information
2.4.2 Tape Control Module
The Tape Control Module (TCM) implements the functions required to buckle and
unbuckle the tape and control the tape motion. The TCM consists of a variety of
components:
•
TCM PCBA (Printed Circuit Board Assembly)
•
Base Plate
•
Cartridge Receiver
•
Positive Engagement Tape Leader Buckling Mechanism.
Other components include the tape supply motor assembly and the floor plate
assembly.
TCM PCBA
The TCM has its own Printed Circuit Board Assembly (PCBA) that controls the
functions of the TCM and interfaces with the main controller board in the EIM. By
designing the TCM as a distinct module, it allows the TCM to be manufactured
and tested as a stand-alone module, simplifying the design, manufacturing and
troubleshooting processes.
Base Plate
The SDLT base plate is an aluminum die casting with precisely machined surfaces
that acts as the support platform for the other modules and for the drive enclosure.
The base plate also includes the precision mounting holes used to install SDLT
drives into a server or tape library. The SDLT base plate, and therefore the entire
SDLT drive, conforms to the 5.25 inch, full-height form factor. This means that
SDLT drives are a little shorter, at the standard 8 inches, than the previous
generation DLT products.
Cartridge Receiver
On tape insertion, the cartridge receiver assembly guides the tape into its operating
position, opens the cartridge door, unlocks the cartridge brakes, engages the
cartridge drive motor, and secures the tape for operation. On tape ejection, the