IEC 61935-2-20:2008(E) describes work area cord for class D applications, as defined in ISO/IEC 11801 as well as in the ISO/IEC 24702. It determines the layout and style for detail specifications describing cords with transmission characteristics up to 100 MHz for digital communications. Detail specifications, based on this blank detail specification, may be prepared by a national organization, a manufacturer, or a user. It cancels and replaces the ISO/IEC PAS 61935-2-20 published in 2007. It constitutes a technical revision.