You have a cable with 3 wires that is not for Profibus DP. What type number is it ?
And you have a Profibus Diagnostic repeater.
And you have two cables with connectors and fixed terminators built in.
The components is an odd mixture. It does not make much sense to try and answer before you tell more about what you want to achieve. And did you just find the componenents or where they given to you, or ..?