Thanks a bunch. I will try and let you know.
let me tell you what I have.
1, I do have NULL serial cable.
2, I do have DB9 male connector.
3, I do have RJ-45 with loose cable at the other end.
4, Laptop with db9 serial port, NO USB conversion.
if you can,
Please let me know how I need to wire between RJ-45 male and DB9 male.
I will use NULL cable from PC to DB9 male.
Thank You so much.