DATEN-RICHTIGKEITS-KONTROLLMITTEL.

摘要

The system includes a device for generating an antistamp section made to neutralise the contribution of the stamp section to FCS, a device for appending anti-stamp section to the stamp section so that a tag is generated and a device for appending tag to data section. The FCS is the remainder of the division of a polynomial representation of data section by a predetermined generating polynomial G(X). A stamp storage is used for storing a so called stamp representing the TDM slot reference corresponding to each HDLC frame. An anti-stamp storage serves for storing predetermined stamp dependant anti-stamp data.