Special Features:

End item: an/tpn-31a ground control approach system, trackball use optical encoders with led light to translate ball motion into x and y signals, baud rate: 1200hz, cable : 8 pin mini din male, 3 buttons, color: housing- light gray, buttons and ball-dark gray

Properties:

A device which includes a sphere mounted in a small open-topped box. The sphere is hand-operated by rotating it in a backward, a forward, or a sideway direction while maintaining the device in a fixed location. The movement of the sphere generates a signal which may be used to move a cursor and/or tracking symbol on the face of a display, such as a cathode ray tube; to input data into an electronic system; and/or to control the operation of a system. It may or may not include additional input devices, such as switches or variable resistors.