Descriptions
This PCI Express serial card, is specially designed for POS and
ATM applications. The product with WCH382L chip supports a
variety of mainstream operating systems, including Windows and
Linux. In addition, the extended 2 rs-232 serial ports can
support the communication rate of 230.4 Kbps, and provide modem
control signals to ensure compatibility with all kinds of
external serial port devices. Since the card is PCI Express “x1”,
it can be installed on various PCI Express slots (including 4x
8x16x).

Serial Interface (RS232):
Comply with industrial standard 16C450/16C550 UART
On-Chip 256-bit depth FIFOs in Transmit, support H/W, S/W flow control
Data transmission rate of each serial port can be up to 250Kbps
Baud rate: 230.4 Kbps
Serial communication parameter data bits: 5, 6, 7, 8
Stop bit: 1, 2
Parity: None, Even, Odd, Space, Mark
Flow control: RTS/CTS, XON/XOFF
I/O address: Assigned by the BIOS
IRQ: Distributed by the BIOS
Serial signal RS – 232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND