![]() ![]() You’ll find shielded wires on these connectors, and the data wires (positive and negative) are twisted pairs requiring no termination. If you disassemble the original apple-ipod-dock-connector-cable and look at the connector itself, on the back side, where it is soldered, you can see the number 1 and 30 (e.g. Third generation connectors have pins 6-10, ascending, from left to right, on the added side rectangle. Looking at the micro connector on a cable, all generations have pins numbered 1-4, ascending, from left to right on the main trapezoid. This OTG pin is also what allows devices to “decide” which will draw power from the other – typically the host will supply power to the peripheral, though in some cases the roles may be re-negotiated. In a smartphone, for instance, the USB connection might allow the phone to perform as a mass storage device when connected to a computer, but as a host to read data from removable storage. ![]() The fourth pin (mode detect) is also commonly referred to as USB “On-the-Go” or simply “OTG.” This pin allows devices to switch between host and peripheral roles. The standard micro connector has five pins in its older generations and ten pins in the less common 3.0 generation: It intended to connect mobile devices like iPhone 5, iPod touch 5g or iPad mini to host computers. to replace its previous proprietary 30-pin dock connector. Receptacles that can accept older generation cables, but older receptacles cannot accept 3.0 cables. Apple Lightning is a proprietary computer bus and power connector created by Apple Inc. Better transfer rates than 2.0, but it’s less practical than the smaller and faster USB-C connector. The Apple Lightning connector plug can be inserted with either side facing up (the processor inside the plug detects the plug's orientation and routes the electrical signals to the correct pins).Two differential pair lanes (L0p/n and L1p/n) may swap in IC of device connector (lanes don't swap if accessory identification chip connect to ID0 pin). The standard micro connector is available only up to the second-generation USB standard, though a less common and much wider 3.0 version exists. ![]()
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