Acer TravelMate 520 TravelMate 520 Service Guide - Page 25

LAN & Modem Interface Item Modem/LAN connector location Rear Side Floppy Disk Drive Interface Item Vendor & model name Floppy Disk Specifications Media recognition Sectors/track Tracks Data transfer rate (Kbit/s) Rotational speed (RPM) Read/write heads Encoding method Power Requirement Input Voltage (V) Mitsumi D353F3X 2DD(720KB) 9 80 1MB 300 2 MFM/FM +5V +/- 10% Specification Specification 2HD(1.2MB, 3-mode) 15 80 1.6MB 360 2HD(1.44MB) 18 80 2MB 300 Hard Disk Drive Interface Item Vendor & Model Name IBM DARA-209000 Capacity (GB) 9 Bytes per sector 512 Logical heads 16 Logical sectors 63 Drive Format Logical cylinders 16383 Physical read/write 3 heads Disks 2 Spindle speed (RPM) 4200 Performance Specifications Buffer size (KB) 418 Interface IDE (ATA-4) Data transfer rate (disk 85.5-161.6 buffer, MB/s) Data transfer rate (host 16.6 (PIO Mode-4) buffer, MB/s) 66.6 (Ultra DMA Mode-4) Specification IBM DARA-212000 12 512 16 63 16383 4 2 4200 418 IDE (ATA-4) 85.5-161.6 16.6 (PIO Mode-4) 66.6 (Ultra DMA Mode-4) DC Power Requirements Voltage tolerance 5+/-5% 5+/-5% Hitachi DK23AA-12 12 512 16 63 16383 4 2 4200 512 IDE (ATA-5) 12.4-20.6 16.6 (PIO Mode-4/Multiword DMA Mode-2) 66.6 (Ultra DMA Mode-4) 5+/-5% Chapter 1 19