产品介绍：
通用PCI总线4路隔离RS-232通讯卡
Provides 4 RS-232 ports
128-byte Hardware FIFO for Each Port
Built-in COM-Selector
128 KB Software Buffer (max.) for Each COM Port Under Windows
+/-4 kV ESD Protection for i versions
Short Card Design
2500 VDC Isolation for i versions
Supports 3.3 V/5 V PCI bus, Plug and Play for VXC-114(i)U
Supports PCI Express x1, Plug and Play for VEX-114(i)
