The ES-271U/9 is a remote display unit which will decode and display 9 digits of time (Day of Year, Hours, Minutes and Seconds) and is housed in a double height rack-mount enclosure. The LX-271U/6 displays 6 digits of time (Hours, Minutes and Seconds) and is housed in a rugged, attractive black-powder coated aluminum desktop enclosure. All units read from a source of IRIG (A, B, or E), NASA-36, XR3 or 2137 time codes.