1, Apple iPhone4s and before used a 30-pin large interface, which is a three-in-one data cable. Need to distinguish between positive and negative, the charging head is wide, and the charging port on the mobile phone is also large. The 30 pins can support iPhone 4S/4/3GS/ 1, iPad 3/2/ 1, iPod touch 4/3/2/ 1, iPod nano 6/5/4/3/2/ 1 and iPod classic.
2.iPhone5 and later models adopt 8-pin (Lightning interface) lightning interface, which supports forward and backward insertion and is compact and beautiful. Apple High-speed Multifunctional I/O Interface 201September 212nd. Apple has released a brand-new Lightning Dock interface, which can be translated into "Lightning" interface in Chinese.
(1) The line length is about105cm; Double-sided USB design, plugged into the USB interface of the computer, can be used on both sides, and an adapter IC is added to match the double-sided USB design.
(2) In addition to the most intuitive advantages of both parties, it can also increase the metal contact area of the USB intermediate layer. Not only can it be compatible with the existing 12W adapter of iPad, but it is also expected to realize the patented technology of 20V extremely fast charging that Apple has not yet released.
Extended data
1, three-in-one data line:
(1), also known as multi-function data line, is a combination scheme based on the original data line. It is equipped with a combination PCB, which can support a variety of devices and avoid the trouble of frequently looking for data lines.
(2) Integrated with Lightning, 30-pin interface and MicroUSB port, it is compatible with various devices and can be connected to any smart phone or tablet computer, including iphone, ipad, Samsung, HTC and other products. For example, the Micro USB cable can support smartphones from Samsung, Blackberry, HTC and other manufacturers.
(3)30 pins can support iPhone 4S/4/3GS/ 1, iPad 3/2/ 1, iPod touch 4/3/2/ 1, iPod nano 6/5/4/3/2/ 1 and iPod classic. Applicable to all products such as IPHONE4, IPHONE5 and MICRO USB interface.
2. Lightning interface:
(1) 8-pin contacts on both sides can work normally no matter how inserted. So don't worry about inserting it backwards. Apple also officially claimed that the new interface is not only easier to use, but also more durable. At the same time, it is pointed out that the new Lightning interface is an "all-digital" interface with "adaptive function".
(2) "Adaptive" actually means that specific signals required by accessories can be transmitted through the interface according to different accessories. Like the previous 30Pin Dock interface, the new Lightning interface also supports video output. It is precisely because of this feature that Apple can launch the Lightning-to-HDMI/VGA converter.
(3) 3) The advantage of Lightning interface lies in its size. It is 80% smaller than the original 30-pin connector, which means that the space you need to reserve for the connector on the device will be at least 80% smaller. Not to mention the related circuit complexity is reduced from 30 pins to 8 pins.
References:
Baidu encyclopedia-three-in-one data line
References:
Baidu Encyclopedia-Lightning (Lightning Interface)