What does lightning interface mean?

The Chinese meaning of Lightning is lightning-like and fast; therefore, the Lightning interface is also called "Lightning interface". It is an exclusive connector specification produced by Apple. It first appeared in the iPhone 5 and 2 released in 2012. New handheld consumer electronics products such as iPod Touch and iPod nano.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

Lightning interface

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.

Apple's high-speed multi-function I/O interface is September 12, 2012. Apple released a new Lightning Dock interface at the Yerba Buena Convention Center in San Francisco, USA, which can be translated as "Lightning" interface in Chinese. The release of the new interface standard also means that the 30-pin Dock interface that Apple has used for nine years will be officially replaced.

Lightning Interface Knowledge Literacy

The pins of this connector are 8pin. As a new Lightning interface that replaces the long-used 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 plugging 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 category and other ID identification strobe signal

　L0p/L0n/L1p/L1n: signal line 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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