Industrial N4519105801 Printed Circuit Board Assembly from Ansaldo STS (also listed as N4518105801) is a Rev. 05 coder output PCB intended for cab signaling systems. The unit arrives factory sealed and serves as the coder output interface within Ansaldo STS signaling equipment. Historical signaling catalogs place the N4519105801/N4518105801 family under cab signal generation, confirming its role in producing coded outputs for signaling applications.
