What is a lightning connector?

Friends who like to use Apple mobile phones must have heard of the term lightning interface. Many people don’t know what the lightning interface is. In fact, the lightning interface is a connector interface specially made by Apple. It also has a name called lightning interface. Next, I will give you a detailed introduction to this interface. Come and learn about it together.

What is Lightning?

Lightning is an English word, and its Chinese meaning is lightning-like and fast.

Therefore, the Lightning interface, also known as the Lightning interface, is an exclusive connector specification made by Apple. It first appeared at the iPhone 5 launch conference in 2012, that is, starting from the iPhone 5, all new iPhones and iPads have been equipped with this Lightning data interface.

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Lightning interface knowledge literacy

This link The connector pin is 8pin. As a new Lightning interface that replaces the long-standing 30pin connector, its size is significantly reduced. And there is a huge change, that is, it can be used both front and back.

In other words, Apple has used the Lightning data interface as early as iPhone 5, which supports reversible insertion and is similar to the USB-C interface familiar to Android users. The USB Type-C interface equipped with Android phones that supports reversible plugging basically only began to appear in 2014 and became popular in 2015.

Lightning interface internal structure

PWR: Power supply

GND: Ground wire

ID0/ID1: Used to identify the front and back sides or accessory categories and other ID identification strobe signals

L0p/L0n/L1p/L1n: Signal lines used for data transmission.

Currently, only 2 of the pins are used for data transmission, and the other 2 should be redundant designs. Different accessory devices are identified through the combination of ID0 and ID1 pins to select different data transmission lines.

Lightning interface function

In addition to basic charging and data transmission, it also supports digital signal output functions such as video and audio. The Lightning interface used by the current iPhone and iPad series only has the speed of USB2.0, with a transfer rate of about 25MB-35MB/s.

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