What is the 6-core crystal head used for

The 6-core is 6p crystal head, which is used for telephone line.

As for the connection method of 6-core network cable crystal head, it is generally necessary to prepare all accessories, and prepare more wires and joints to avoid damage during connection. Secondly, you need to peel off the skin outside the line first. Be careful not to peel too much. Just expose the head in front.