It can be used if used, but it is recommended that LZ not be used.
1, the sound is 48V power control line, and the network cable is a data transmission line, although the good network cable is made of copper core, because the processing is not the same, it will always cause noise, stop sound and other phenomena during the operation of the sound.
2, the network cable is easy to break compared with the audio cable.
If you do, you might suggest a power cord, like a surveillance camera.