This Printed Circuit Board Assembly Requires A 120V Power Supply And Can Work With Any Duplex Digital. Replacement Option For: Mfg #1900Dr1A, #1900Dr1D, #2500Esr1C, #410Er1C, #50084-01R. #50911, #51405, #51421, #51542, #51569, #51586, #54003, #611311, #9710-09, #Alp50R1C, #Bh50D, #C11Jdr1A, #C11Jdr1B, #Dak50R1B, #Digdupr1A, #Ds50R1A, #Ds50R1C, #Dyn100R1E, #Dyn100R1C, #Mas125R1A, #Mor100R1B, #P295R1A, #Ret50R1A, #Ss23Dr1B, #Ss23Dr1C, #Vik100R1A, #Vik100R1B, #Zx500Dr1A Specifications Category: Circuit Boards Subcategory: Printed Circuit Boards (Pcb)