Acer 721TX Service Guide - Page 29

Fax/Modem Item Support modem protocol Modem connector type Modem connector location Keyboard Specification V.34 data modem, V.17 fax modem, voice/audio mode, and digital simultaneous voice and data (DSVD) operation over a dial-up telephone line PCI RJ11 & RJ45 combo phone jack Back side Item Keyboard controller Keyboard vendor & model name Total number of keypads Windows 95 keys Internal & external keyboard work simultaneously Disk drives Specification M38867 API 84-/85-/88-key Yes Yes Item Specification Vendor & model name MITSUMI D353F3 Floppy Disk Specifications Media recognition 2DD (720K) 2HD (1.2M, 3mode) Sectors / track 9 15 Tracks 80 80 Data transfer rate 250 300 500 (Kbit/s) Rotational speed (RPM) 300 360 360 Read/write heads 2 Encoding method MFM Power Requirement Input Voltage (V) +5 +-10% 2HD (1.44M) 18 80 500 300 Hard disk drives Item Vendor & Model Name Specification IBM DCXA210000 IBM DADA26480 Chapter 1 21