How did you go? I also have a simular issue with the FuriBee x215 Pro, but I got a receiver with mine. Just cant Bind. Firmware issue between Transmitter and Receiver I believe. I'm about to ask here for help with that. Just saw your post as I was looking to see if my question had already been answered but your problem is slightly different to mine. I have the FuriBee x215 Pro also purchased from Gearbest with a receiver.
By the looks of it, your issue should be solved if you got a receiver with your transmitter.
And to answer your last question, yes, there is usually a simple 3 pin plug that cant be put in the wrong way to connect the Rx to the flight controller (probably your top board in the stack/tower/whatever they call it).