Quantum DLT 7 Manual descarregar pdf (Página 27)

Chapter 1 Product Overview

Tape Drive Components

DLT-S4 Product Manual 9

Front panel assembly

(bezel)

The front panel assembly (bezel) performs these functions:

• Protects the front of the drive from physical damage

• Channels air flow through the system

• Aligns the cartridge when it is inserted into the system

• Provides label identifiers for the LEDs mounted on the front of the tape

drive

• Enables cartridge ejection

• Reduces internal environmental contamination with a built-in dust door

(internal and tabletop configurations only)

Board assemblies The board assemblies provide the main control function for the system and the

interface from the system to the host computer, library, or autoloader. This

provides the Advanced Partial Response Maximum Likelihood (PRML) feature

of the Quantum DLT-S technology.

There are three board assemblies:

• Pre-amplifier Board (PAB) — The PAB contains the preamplfier for the read

heads, and the write driver for the write heads.

• Motor Driver Board (MDB) — The MDB interfaces with the reel motor

drivers and hall sensors, actuator driver and sensors, sensor and motor

drivers for the soft load, LEDs for front-panel indicators, and eject button

signals.

• Drive Control Board (DCB) — The DCB is the main control card for the

DLT-S4 tape drive. It sends commands to the MDB to control and drive the

tape mechanism. The board interfaces with the PAB to send signals to the

head for reading and writing.

Components Description

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Quantum DLT 7 Manual Página 27