EDAM-8531 ISO USB to RS-422 / RS-485(TX,RX,RTS,CTS) convert * Automatically switch USB signal to RS-422 or RS-485 * Driver Support For Windows 98/ME/2000/XP/Vista/W7 * Power And Activity Indicator For Troubleshooting * Auto Switching Baud Rate Up To 115.2 or 921.6 Kbps * Reserved space for termination resistors * Minimum 3000 VDC Isolation Protection * Mounts Easily On Din-Rail Or Panel * Supports RS-485 full(4-wire) / half(2-wire) duplex * RS-422 RTS & CTS Signals Support