Much like most Apple apparatus, the iPhone utilizes an iPhone cable using a 30-pin connector for attachment connectivity, sound and video transfer, charging and synchronization. This is why generic USB cables cannot be used with an iPhone or any other Apple device. The connector at the end of this cable can also be known as a "Mac Connector". An iPhone USB cable is built to permit data transfer between a computer and an iPhone, and also to charge an iPhone as well.
Read More Information Here Iphone charger cord
The USB Plug
The other end of an iPhone cable comes with a USB plug, which is a standard link that can be seen on almost any computer and notebook. It's the main input and output port for communication with devices like the iPhone. The USB plug of the cable causes it synchronization potential between an iPhone handset, and a computer and the computer's software. A regulated 5-volt output is also included in the standard USB plug of the cable, therefore an iPhone can be powered or charged when it's connected to a computer. For the cable's computer end, any regular, 4-pin USB plug is needed for the iPhone.
Apple specially designed the proprietary 30-pin connector, mentioned above, for USB wires for all its devices. The USB cable used for data transport and power on the majority of the Apple apparatus, such as the iPhone, has this "Mac Connector". Although there are only four pins in a typical USB cable, but the Mac Connector in an iPhone cable has additional connections between the hooks. This makes it feasible for the iPhone to get a charging voltage, and also communicate with the external device. The crucial power and information system of an iPhone USB cable is just like a typical USB cable; however, the connections between the two plugs tend to vary slightly.
USB to Mac Connections
An iPhone cable has a positive information line that connects the USB plug's pin 3 to the Mac connector's pin 27 to allow data transfer between an iPhone and an external device. The negative data line in the cable joins the USB plug 2 to the Mac connector's pin 25. The USB cable's pin 1 is connected to the Mac connector's pin 23, enabling an electricity output of positive 5 volt to be attained from the cable. Another wire connects the USB plug 4 to the Mac connector's pin 16, allowing a negative electricity output to be achieved.
An iPhone cable also has resistors that are attached to the USB data lines where they supply a specific voltage signal so that a charging voltage can be accepted by an iPhone in the USB. The resistors ensure it is possible for the iPhone to be billed through the cable, and also allow the iPhone to synchronize with an external device.
For those who have a computer or some other compatible external device, transferring information between the device and their iPhone apparatus gets easier using an iPhone data cable. The iPhone USB cable can also be used as an alternate way of charging an iPhone. Thus, the iPhone cable is also an integral iPhone accessory.