Stop walking across a dark room to turn on the light. Install a 3-way switch and control lights from two locations.

Knowing how to wire a light switch is critical if you are going to tackle the job yourself. Here we show you how to wire up a ...

Every radio station has at least one Layer 2 (Ethernet) switch nowadays. They seem like the ideal device: You take one of out of the box, connect a bunch of cables, and it magically starts working.