Ethernet Cable Question for Work

I do not know if this is the right subreddit to ask this question.

At work we are trying to setup some doors and the ethernet that they came with have different colors inside the sleeve. They are brown blue yellow green red black orange and grey. We needed some more wires because we think some of the ones we got were bad so we purchased some Cat6 wires and they came with the standard colors (blue, blue white etc). We asked the company's tech support to see how we can interchange the colors and they gave us a key in which colors to substitute, sadly it did not work. We decided to test another portion of the door that required the RJ45 connection on both sides and things did not work as they were supposed to. So we came to the conclusion that the wires may not be interchangeable. I am hoping someone here might have some insight in what we can do or where we can purchase that specific ethernet wire.

I know most people will think why would a door require ethernet cables, this company is like a manufacturer so the doors need to lock or unlock based on certain parameters and they communicate via 2-4 ethernet cables/door.

Thank you for all your help