(5)Air circulation system

The disk enclosure (DE) is sealed to prevent dust and dirt from entering. The disk enclosure features a closed loop air circulation system that relies on the blower effect of the rotating disk. This system continuously circulates the air through the recirculation filter to maintain the cleanliness of the air in the disk enclosure.

(6)Read/write circuit

The read/write circuit uses a LSI chip for the read/write preamplifier. It improves data reliability by preventing errors caused by external noise.

(7)Controller circuit

The controller circuit consists of an LSI chip to improve reliability. The high-speed microprocessor unit (MPU) achieves a high-performance AT controller.

2.2System Configuration

2.2.1ATA interface

Figures 2.3 and 2.4 show the ATA interface system configuration. The drive has a 40-pin PC AT interface connector and supports the PIO transfer till 16.7 MB/s (ATA-3, Mode 4), the DMA transfer till 16.7 MB/s (ATA-3, Multiword mode 2), and the ultra DMA transfer till 33.3 MB/s (ATA-4, Ultra DMA mode 2).

2.2.21 drive connection

Host

HA

(Host adaptor)

AT bus

ATA interface

(Host interface)

 

Disk drive

Figure 2.3 1 drive system configuration

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Fujitsu MPC3065AH, MPC3045AH manual System Configuration ATA interface, 2 1 drive connection