Signal test connecting piece and tool based on VITA74 standard

The invention discloses a signal test connecting piece and tool based on the VITA74 standard. The connecting piece comprises a signal switching flexible board, a signal input module and a signal output module, wherein the signal input module and the signal output module are arranged at the two ends of the signal switching flexible board. The signal input module and the signal output module realizesignal transmission through the signal switching flexible board, the signal input module is used for being electrically connected with a tested system, and the signal output module is used for beingelectrically connected with a test board; the signal input module acquires an output signal of a tested system, the output signal is transmitted to the signal output module through the signal switching flexible board, and the signal output module transmits the output signal to the test board for signal testing. The invention provides a universal timing system device capable of flexibly expanding interfaces, and aims to imp