order the second set of conductive terminals 32 are inserted into the second row of terminal receiving recesses 20402 in order and the plurality of conductive terminals 3 are fixed then the insulating body 2 containing the plurality of conductive terminals 3 is placed into the shield casing 1 from the back thereof such that the strengthened plate 2042 of the insulating body 2 is attached to the bottom surface of the bottom wall 11 of the shield casing 1 the tongue plate 2040 of the insulating body 2 stretches into the shield casing 1 the rib 2041 on the main body 20 is inserted in a corresponding corner of the shield casing 1 and closed to an inner wall of the shield casing 1 at this time the positioning blocks 2000 of the insulating body 2 is fixed to the corresponding opening 101 of the shield casing 1 the engaging block 2020 is engaged with the groove 124 of the shield casing 1 parts of the insulating body 2 are accommodated in the opening 13 accordingly the electrical connector 5 has been done please refer to fig9 and fig1 when connecting the butt plug 4 and the electrical connector 5 the control unit.