Advantech HMI-640S Personal Computer User Manual


 
Chapter 1 General Information
3
RAM: 16MB EDO RAM on board
IDE hard disk drive interface: Supports up to two Enhanced IDE
devices, auto-detect BIOS
Multi-mode parallel port: Configured to LPT1, LPT2, LPT3 or
disabled. Supports SPP/EPP/ECP; D-SUB 25-pin connector (on I/O
module)
Serial ports: One serial RS-232 port, one serial RS-232/422/485 port
(configurable by DIP switches; please refer to Appendix B).
PS/2 keyboard/mouse connector: Mini-DIN keyboard connector
Watchdog timer: Generates a system reset at a fixed 1.6-second
interval. Watchdog timer can be enabled/disabled through software.
The Watchdog timer is disabled by default factory setting.
External expansion slot: 104-pin connector, supports up to two
cascaded 16-bit PC/104 cards with +5 V and +12 V
Battery: 3 V @ 195 mA Lithium battery for CMOS backup