he PCI Express RS232 Multi-Port I/O card is used
EXAR’s high performance chipset 17V358,it is
compliant to PCIe 2.0 Gen 1(2.5GT/s),and it has
eight serial port each port has many enhanced
features such as the 256-bytes TX and RX FIFOs,
Programmable Fractional Baud Rate Generator,
Automatic Hardware or Software Flow control, it is
complete to used for Point-of-Sale systems, Remote Access Servers, and factory Automation etc.


Features :
 Compliant with PCI Express Specification Revision 2.0
 X1 link dual simplex .2.5Gbps in each direction
 Supports x1,x2,x4,x8 ,x16(lane)PCI Express slots
 Supports with 8-Port RS232
 16 multi-purpose inputs/outputs(MPIOs)
 16-bit general purpose timer/counter
 Up to 31.25Mbps serial data rate
 Data bits:5,6,7 or 8
 Stop bits:1,1.5,2
 Parity check: Even/odd/mark/space/none
 Flow control :none, hardware and Xon/Xoff
 256-byte TX and RX FIFOs
 TX/RX FIFO level counters
 Automatic RTS/CTS or DTR/DSR hardware flow control with programmable hysteresis