We have begun sending wireless setups to our mobile blood collection sites. The setup consists of a router that picks up a cellular signal and a wireless access point that the laptops in the setup then connect to. Unfortunately, the power supplies for both look very similar and the jacks are identical, but the router requires only 5 volts whereas the AP takes 48 volts. So far the mobile staff has fried 4 expensive routers by connecting the AP power supply to the router. We have not come up with a way to permanently attach the correct power supply to each device. Is there a type of "fuse" or surge protector we could use to prevent higher voltages from getting to the routers? Sorry, you can tell I am not an electrical engineer!
