This standard is applicable to a group of related two-part connectors for printed boards for board-to-board and board-to-wire connection, with tin or gold plated contact area according to the style. The free or fixed board-mounted connectors are provided with terminations suitable for printed boards in accordance with IEC 326 and using a grid of 2,54 mm (0,1 in) as laid down in IEC Publication 97. The fixed connectors are provided with solder terminations. The free connectors are provided with solder terminations, crimp terminations or insulation displacement (ID) connections. This standard shall be used in conjunction with IEC 50(581), 97, 194, 326, 512 and 603-1.