Exsys 2 Port PCIe RS232 Serial Card

The Exsys PCIe I/O card provides two serial RS-232 high-performance UART 16C550 outputs. It is designed to expand two additional serial ports for PCs, small workstations or servers via the PCIe bus. +5V and +12V are configurable on pin 9 of the serial connectors as POS system (Power over System). The card is fully Plug-and-Play compatible.

IO addresses and interrupt is set from the operating system
Data bits are 7 and 8