Tested, working, refurbished, very clean. Siemens Simatic S5 connection interface module/communications processor 304 (in main unit) for decentral connection up to 600M from ED to CD as well as coupling of central devices for S5-150H-155H-115H-115F. Model 6ES5304-3UB11, C79040-A6422-C21-03. Surplus industrial control system card from a closing plant in Quebec, Canada.
Internal inventory code: FPR