Allow me to more than just HEART the post 10 reply, as a former industrial electrician and long-time systems analyst, that is not just great advice, it is the easiest to implement, possibly least expensive and quickest. You might even be able to use POE to solve some power issues.
However, if 200m, then I would add two repeaters, since the maximum distance is 100m. But do not be fooled into thinking that 200m/100m is equivalent to two segments; that is the best-case scenario. Therefore, three segments of 70ish will work better. See the attached chart for speed and distance trade-offs.
Remember, all routers, switches, and repeaters must be PoE capable if you plan on powering the remotes that way.
