networking with TLP434A & RLP434A

Hi, I need to construct a network in a close space of 200 mts2 or less,the components of this net will be a central that is going to comunicate with others dispositive that only will have comunication with the central, not between them.

I’m considerated use the economic TLP434A & RLP434A component that sparkfun offer. What can you tell about this component? that is a good for me?

Thanks for your help. :wink: