(and increasingly more) have to be connected directly to the power cable:
* [[CCTV Monitor]]
Items that need power will only connect using the small cables if they are inside. Outdoors, every item (except [[Light|Lights]]) that needs power will need a direct connection. If such an item fills multiple squares, such as the [[Servo|Door Servo]], the Electrical Cable must be built on the square with the flashing power symbol. This is usually apparent for [[Road Gate|Road Gates]].
Electrical cables can not be built through a [[Perimeter Wall]], and building a Perimeter Wall over any existing cable will remove it.