System Configuration; Ata Interface; Drive Connection; Drive System Configuration - Fujitsu MPB3021AT Product Manual

(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.
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 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).
2.2.2

1 drive connection

Host
AT bus
(Host interface)
2 - 4
HA
(Host adaptor)
ATA interface
Figure 2.3

1 drive system configuration

C141-E045-02EN
The high-speed
Disk drive