I got a cheap 12 volts power supply (this one specifically) which I want to distribute to several CMOS CCTV cameras (such as this one) which are spread around the house (15m max. distance).
Normally you would connect each camera via its own power supply to the mains, but since I don't have a lot of space for all these individual power supplies, I thought of creating a "power distribution" board with nice connectors to connect all individual cables to the single powerful supply mentioned above.
Now, obviously connecting them all in parallel worked when I tested it, but for a permanent solution I was wondering - should I add some protection to the circuits? Inverse polarity / overdrive / surge etc.?