So I have a Jidetech IP camera, that has four ports: Ethernet, a red-coded female power connector, a yellow coded female RCA, and a white coded female RCA. I get the Ethernet and the manual shows that you use the power connector if you don’t have power-over-ethernet. I assume yellow is analog composite video out, considering the manual says you can set it to PAL or NTSC. But what is the white? Audio in? Audio Out? Something else? The camera is advertised as “with audio” but I don’t know if that means it has a built in microphone or if you can plug an external microphone into it to be sent back over the Ethernet along with the camera video.
I found these pages:
https://public-camera.com/en/how-to-connect-JideTech-ipcamera.html
Not sure which model is yours, but perhaps you can cross reference it from there.
If it has Audio, the white is probably audio out, to go with the yellow composite video out.
Typical audio RCA is red & whie (R & L, I assume). So perhaps mono is white.
White for mono RCA out is standard IME.
It wouldn’t make sense for it to have RCA video output and RCA audio input. If it doesn’t have a built-in microphone, it would probably have a 3.5" microphone jack. And why would a security camera use external microphones? External mic is usually only used when you need very high quality audio.