ok after checking http://www.macos9lives.com/downloads/_img/MTP_II_ManualChapter02.pdf
i see that the motu mtps actually get connected by 1 cable that connects the network port to the oter units same network port.
so my questions about networking were way offf because it doesnt get used the way i thought where u would plug 1 side in network port and the other unit into the regular port it would use as if it was connected to a pc.. it doesnt work that way from the documentation so its only possible to use two fo these if u have two mtp units after all..