so you have a cmm product with all parts for ports modular. gps unit is just a card switchout, all poe ap ports are interchageable because you can purchase what ever port you need rj45 10/100, rj45 10/100/1000 maybe with different power outputs aswell. this would allow for rapid repair or upgrade. also dual wan ports that have the option for rj45 or sfp. it would be similar to apc suge protection or wireless beehive stuff which also does poe.
think about it