Covers 8 way connectors, up to 4 pairs, to be used up to 600 MHz, when used with an appropriate cable. These cables are specified in the IEC 61156 series and used in cabling systems specified in ISO/IEC 11801. The connectors are backward compatible with the already defined IEC 60603-7-X connectors. The connectors are interoperable with the already defined IEC 60603-7-X connectors.