1 Hardware Overview 1.2 System Unit
1-8 Tecra A3/S2 Series Maintenance Manual
PCMCIA Card Organization
• Accommodate one type II device for TECRA A3 or two type II devices/one type III
device for TECRA S2.
• SRAM, OTPROM, FLASH ROM, mask ROM memory card up to 64MB
• MODEM/LAN card
• Card bus card
• ACPI 1.0 Compliant
• Full ACPI 1.0B supported
• LCD Auto-DIM mode by time out
Multiple Digital Media Card
• Supports SD/MMC/SM/MS/MS Pro/xD card
• SD memory capacity support from 8MB to 512MB
• MMC memory capacity support from 8MB to 256MB
• SM memory capacity support from 4MB to 128MB
• MS memory capacity support from 8MB to 256MB
• MS Pro memory capacity support from 256MB to 1GB
• xD memory capacity support from 4MB to 512MB
Universal Serial Bus (USB)
The computer comes with three USB ports that comply with Universal Host Controller
Interface (UHCI). The USB enables daisy-chain connection of up to 127 USB-equipped
devices. It is designed for easy configuration by a Plug-and-Play operating system and
provides hot insertion/ejection capability.
Parallel port
A 25-pins parallel port enables connection of a printer or other parallel device. The port
supports Extended Capabilities Port (ECP) conforming to IEEE-1284 and is Enhanced
Parallel Port (IEEE 1284) compliant. It features ChiProtect circuitry for protection against
damage due to printer power-on.
External monitor port
A 15-pins CRT port supporting DDC 2B enables connection of an external monitor,
which is recognized automatically by Video Electronics Standards Association (VESA)
Display Data Channel (DDC) compatible functions.
Sound system
A Realtek ALC250VD for AC97 codec audio subsystem offers industry leading m ixed
signal technology to enhance the computer’s multimedia capability. The sound system is
equipped with stereo speakers and jacks for headphone and external microphone