3.进行预插合：对插时确认键位标识（插头和插座上键位相同为正确），将插

3. Carry out pre-insertion: confirm the key position identification when inserting (the same key position on the plug and socket is correct), align the plug key position column with the socket key position slot, and insert the plug into the socket horizontally and uniformly as shown in the figure below. Closed state position (Note: the socket ears completely enter the tangent position of the handle rail).

3. Pre-plug: confirm the key identification when plugging in (the key bits on the plug and socket are the same correct), align the plug key post to the socket key slot, and insert the plug horizontally into the socket horizontally at the pre-insertion completion status position as shown in the figure below (Note: the socket lifting ear fully into the handle rail tangent position).

3. Pre plug in: confirm the key position identification (the same key position on the plug and socket is correct), align the key position column of the plug with the key position groove of the socket, and insert the plug into the socket at a horizontal and uniform speed, as shown in the figure below (note: the lifting lug of the socket completely enters the tangent position of the handle guide rail).<BR>