Device Configuration

(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 circulation filter to maintain the cleanliness of the air within 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.

2.2 System Configuration

2.2.1 ATA interface

Figures 2.3 and 2.4 show the ATA interface system configuration. The drive has a 44-pin PC AT interface connector and supports the PIO transfer at 16.6 MB/s (ATA-3, Mode 4), the DMA transfer at 16.6 MB/s (ATA-3, Multiword mode 2).

2.2.2 1 drive connection

MHA2021AT

MHA2032AT

Figure 2.3 1 drive system configuration

2-4

C141-E042-01EN

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Fujitsu MHA2032AT, MHA2021AT manual System Configuration, ATA interface, 2 1 drive connection