IEI PM-1004-R20 Embedded Board PC/104 Series 4xRS-232/422/485 extensation module 1. PC/104 form factor 2. 16C554 UART controller 3. Four jumper selectable RS-232 or RS-422/485 serial communication ports 4. Supports shared IRQ or independent IRQ mode 5. Jumper selectable interrupt level 6. MAX. baud rate: 921.6kb/s 7. Windows® NT, Windows® 2000, Windows® XP, Windows® CE and Linux driver support |