Here’s how the modular connector got that way. For the first 80 years or so of the US telephone network, the Bell Company called all the shots. They owned absolutely every bit of equipment in ...

A family of plugs and sockets used with registered jack (RJ) twisted pair cables. They are defined by the number of positions on the connector that can hold a wire contact and the actual number of ...

See Lightning connector. Just as Lightning disappeared, the universal 3.5mm analog headphones jack, which had been on Apple devices for years, was also replaced with USB Type C. Called a "mini ...

The first step was to build the circuit to output the correct serial levels and connect it to the unused pins on the jack. Next, to separate serial and Ethernet on the outside of the router he ...

It can support stereo and/or microphone, depending on the number of separate connector rings on the jack. Some phones offer only a 2.5 mm jack, which is a smaller variety of the same principle.