A multifunctional test adapter cable design method

The invention provides a multifunctional test adapter cable design method and relates to the technical field of tests and measurement. The multifunctional test adapter cable design method relates to a simulation fire control or launching guide frame end connection cable plug I, a tested piece end connection cable plug II and a double-pole double-throw relay, which are connected in series via conductors. The method can eliminate potential safety hazards of false connection of test adapter cables, guarantee the consistence of two test procedure states, guarantee the safety and the reliability of test adapter cables, and meet the requirements for two different ground docking test procedures of aircrafts of the type, with a launching guide frame and without a launching guide frame, according to the automatic switching state of launching guide frame presence or absence in a test circuit, and the operation is simple and the safety is high.