The PortServer TS MEI Hardened family of serial servers is designed for serial port expansion where environmental hazards demand extended safety features and operating tolerances. Extended operating temperature (-35° C to +74° C), conformal coated circuit board, NEMA TS 2 and Class 1 Div 2 certifications make these rugged serial servers ideal for use in outdoor applications. Digi’s patented RealPort® COM port redirector creates a local COM or TTY port on the host computer, allowing existing software applications to work without modification.