The USO9ML2 and USOPTL4 are USB to serial converters. The USO9ML2 provides a virtual RS232 port while the USOPTL4 is RS422/485 compatible. The converter simply needs to be plugged into an available USB port on a computer or USB hub and the device will show up as an additional COM port in the Windows Device Manager.
Commercial and industrial equipment such as point-of-sale peripherals, medical devices, scientific instrumentation, laboratory equipment and other devices are often used in environments where surges, spikes and ground loops are likely to occur. The built-in 2 kV optical isolation provided by the USO9ML2 and USOPTL4 will protect sensitive equipment used in industrial environments.
Both models provide full-speed (12 Mbps) USB 2.0 support allowing connectivity with modern computer technology. The USO9ML2 RS232 port uses a DB9 male connector wired as a DTE with full hardware handshake support while the USOPTL4 provides screw terminal connections. Dip switches allow the USOPTL4 to be configured for 2- or 4-wire, RS422 or RS485 modes. By supporting both 2-wire RS485 and 4-wire RS422/485 communications, these devices are suitable for applications requiring long-range or multidrop capabilities.
Both converters can handle standard asynchronous data rates up to 460.8 Kbps.
Each unit comes with a 1 m USB cable and a driver disk. Drivers support Windows platforms up to Windows 7 in 32- and 64-bit implementations.