There are many types of wire connectors out there but these are some of the most common ones you'll encounter.

This image shows the difference between standard industrial Etherent cabling (top) with 4 twisted wire pairs and SPE cabling (bottom) with one pair of twisted wires. SPE delivers standard Ethernet ...

Two-wire transmitter technology came about from an agreement among various instrument suppliers in the 1950s to standardize on 4-20 mA current loops as a means of sending a flow, temperature, pressure ...