AL010 2.5mm Audio Jack to RJ9 Adapter

Hello, I need the pinout for this adapter, if anyone has it please add it here ,
The th origin has 4 pins for output and am2301 has 4 input pins on the pcb, but only 3 wires connected 1 3v3, 2 data, 3 ground , and the 4 pin is left unused the 4 pin is NC.
The output pins on the the origin are : 1 3v3, 2 data rx, 3 gdn, 4 data TX.
So please stead link some.schematics for the adapter
Thank you

The adaptor works perfect and you can use existing sensors with new version of TH10/16

I received it very fast and I'm very satisfied with it.

Everything went perfectly! This product is of excellent quality, and was delivered quickly!

I had ordered 2 x "AL010 2.5mm Audio Jack to RJ9 Adapter", but only one arrived. However, after contacting you, I've now reseaved the missing adaptor and I'm really happy with it, and how it all works. 🙂