USBS 2000 series serial communication converters allow you to establish serial communications at speeds up to 921.6 kbps without ever opening up your computer case. They also eliminate the need for such system resources as I/O ports and IRQs to support serial communications. They suppport both full and half-duplex communications in RS-485 mode.
They require a computer system that supports V1.1 USB in both hardware and operating system. USBS 2000 series converters are powered from the USB cable, so you need no additional power supplies. These converters should normally be connected to a self-powered hub that is capable of supplying 500mA of current per port.