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WD-Card is a Smart Universal PCI Multiport Serial Board designed for POS and ATM applications, and for use by industrial automation system manufacturers and system integrators. WD-Card is compatible with all popular operating systems, and each of its 2/4/8/16 RS-232 serial ports supports data rates of up to 921.6 Kbps, and provides full modem control signals, ensuring compatibility with a wide range of serial peripherals. In addition,WD-Card works with both 3.3V and 5V PCI buses, allowing the board to be installed in virtually any available PC server.

WD-200/WD-400聰明型PCI總線串口多用戶卡適用于POS、ATM、工業(yè)自動控制等應(yīng)用。本系列多用戶卡支持絕大多數(shù)操作系統(tǒng)，它的每個端口支持高達(dá)921.6Kbps的速度，同時每個端口均為標(biāo)準(zhǔn)全信號RS232端口，提供調(diào)制解調(diào)器的所有控制信號，并于大多數(shù)串口設(shè)備兼容。
WD系列聰明型PCI總線串口多用戶卡可工作在3.3V和5V PCI總線環(huán)境中，可被安裝在所有的PC機(jī)、工控機(jī)中。

型號 RS232口數(shù) 端口 配電纜 備注
WD-200 4 DB37 是  
WD-400 8 DB64 是  
WD-800 16 DB64 是  

Over 800 Kbps data throughput, top performance in the world
Serial communication speed up to 921.6 Kbps
128-byte FIFO and on-chip H/W, S/W flow control
Universal PCI compatible, with 3.3/5V PCI and PCI-X
Low profile board for compact-sized PC
Windows 2003/XP/2000/98/ME, Linux, UNIX driver support
Single 5 VDC power requirement
On-board 15 KV ESD protection
Bus（總線）： 32-bit, Universal PCI
Serial（接口）： RS-232
No. of Ports（口數(shù)）： 4/8/16
Signals（信號）： TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
Speed（速度）： 50 bps to 921.6 Kbps
Parity(校驗(yàn)）： None, even, odd, space, mark
Data Bits（數(shù)據(jù)位）： 5, 6, 7, 8
Stop Bits（停止位）： 1, 1.5, 2
Flow Control(流量控制）：RTS/CTS, XON/XOFF
IRQ, I/O Address（中斷和I/O地址）: Assigned by BIOS
Operating Systems（操作系統(tǒng)）: Windows NT/2000/XP/2003, Windows 95/98/ME, Linux 2.6/2.4(Red Hat, SuSe, etc.), FreeBSD, SCO OpecServer,SCO Unixware 7,SCO Unixware 2.1, Embedded Windows XP, QNX, DOS
Power Requirements(電源）：120 mA ( 5V)
Operating Temperature（工作溫度）： 0 to 55?C
Operating Humidity（工作濕度）：5 to 95% RH
Storage Temperature（存儲溫度）：-20 to 85?C