What is PoweredUSB?
PoweredUSB provides a single cable connection that supplies both the standard USB communication signals and two additional wire pairs for extra power. The design of PoweredUSB and it’s connectors allow for hot-plugging. This combined with Plug-and-Play operating systems allows PoweredUSB to be easily maintained and supported in the retail environment.
One of the limitations of standard USB is the amount of +5V current available to supply attached peripherals. Normally, 500mA is available at each host port and each powered external hub port. This amount of current is sufficient for most PC type peripherals like mice and keyboards. When the power requirements exceed the 500mA limitation, external peripherals require the use of an external power supply (brick) to supply the necessary power requirements. This limitation takes away from the true “Plug-and-Play” idea conceived for USB peripherals.
There are three configurations available, 5V, 12V, 24V. These are differentiated by a keyed and color coded connector.
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