LIU Connection Diagram

There is some confusion as to the connection of the line isolation unit (LIU) to the system and music source.

This device allows you to isolate your music player from the phone system or isolate the music from your phone system to an amplifier.

The RJ12 (6p2c) on the LIU  is labelled system and the RJ11(4P2C) is labelled Music.