Compact Count Down Timing Generator.

PARK PROGRAM CLOCK is a portable, compact and rugged count-down timing system, suitable for land based, or ship-based launch applications and ground check out applications. Its compactness and ruggedness makes it highly suitable for applications where the unit has to be carried to remote locations. It includes a precision Count down Time Generator, and a Hold Interface Unit capable of handling three Remote Time Displays (RTDs) The unit can also interface to a launch computer, and process the holds generated by it.