Product description：    

SB16C1053 series is based on a double of PCI target interface controller of SB16C1053APCI.SB16C1053 series hasve a parallel port and I/O bus to realize the transformation of PCI to serial port and the parallel port. SB16C1053 series also provides the high performance of serial and parallel ports communication and with the waking function.

SB16C1053PCI can support as many as six serial port extension, provide RS422/485 to switch function and global interrupt built-in function to allow the serial port in serial communication more convenient to manage the driver program level.

Product description
Conforms to the PCI specification, supports 32 bit PCI bus.
Support PCI  I/Q sharing
FIFO size:256- Byte
Plug and play, automatic distribution of IRQ and I/O address.
Bits per second: 75-128000
Data bits: 5, 6, 7, 8
Parity: even, odd, no, mark, space
Stop bit: 1, 1.5, 2
Flow control: Xon/Xoff, hardware, no
Compliance RoHSstandard。
Using 16C1053 SystemBase control chip
Serial signal
422 definitions: 1-3, 2-4, 3-1, 4-2
485 definition: 1-1, 2-2
Operating temperature: -45 to +85;
Working humidity: 20% RH to 85% RH;
Storage temperature: 10 degrees C ~ 90 degrees C;
Support system:

2000/2003/XP/vista/7/2008/8/8.1 linux2.4, Linux WINDOWS 2.6 operating system.
Package details
1xPCI serial card
1xUser Manual
1xCD driver