PARK Portable, Compact, and Rugged Count Down Timing System is suitable for land-based or ship-based launch applications and ground checkout applications. Its compactness and ruggedness make 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 up to eight Remote Time Displays (RTDs). The unit can also interface with a launch computer and process the holds generated by it.

The PGMCLK-20 supports redundancy on RTD connections at two levels:

• Unit level redundancy
• Link level redundancy