Details on the Portable Inductive Artillery Fuze Setter
(PIAFS / EPIAFS):

AdaRose engineers developed the prototype software to enable Paladin's Automatic Fire Control System to send commands and targeting data through PIAFS / EPIAFS to Artillery Rounds capable of having their fuzes set inductively (electronically) such as Excalibur.

For information on Excalibur click on the following link: Excalibur