With the PCMCIA card Plug-and-Play feature and drivers simply follow the instructions of Install Wizard then you are done. You don’t have to deal with I/O address IRQ jumpers DMA and others when you are connecting the devices. The System will recognize the device and install the drivers automatically. The SG-RS1SIS is an ideal solution for your expanding applications. The RS-422/485 to PCMCIA card is designed for your PC workstation thin client or server to provide instant RS-422/485 Serial port expansion via the PCMCIA bus. The SG-RS1SIS is compatible with new and legacy RS-422/485 devices. It is easy to install and use with its plug-and-play feature. It provides the scalability to quickly adapt to new serial technologies. Complete product line offer many choices help you to expand and make your network grow with your requirements.> Features One 16C950 UART Serial Port over PCMCIA Slot Supports RS-485 Auto Transceiver Turn Around by Unique Featured ATTATM Hardware 4-wire RS-422/485 and 2-wire RS-485 applications Isolated and 15KV ESD Surge Protection Fully 32-bit CardBus Type-II Slot 16-Bit PCMCIA R7.1 and backward Compatible