We needed to extend ethernet to the gate about 200 feet from the home near the gate for an access point, ip camera & doorstation. We only had 1 cat5 run to the area. There is NO local power in the area. We used a TP-Link 5 port gigabit poe switch and connected it to the cisco sg350 in the rack. Somehow the cisco provided the poe to power up the TP-Link and all the devices? How?