Frequently Asked Questions

Bi-directional, will it work in both ways?

  • USB is always bi-directional.

  • USB defines host and device or in terms of direction upstream (communications from device to host) and downstream (communication from host to device.

  • The host is always on the upstream side and has a type A socket (or OTG) the device is always downstream and originally devices were all supposed to be fitted with type B sockets or a type A plug (memorystick etc.). A host (mostly a PC, or android on OTG) is the controlling device and an ADC or DAC is a device.
Example: iPurifier 1 or 2 or 3 plugs into the type B socket on an ADC device and the cable from the computer plugs into the iPurifier 1 or 2 or 3, exactly as would be the case with a DAC.

As long as the iPurifier (what ever version) plugs into a "B" type socket (or via an adapter into a "A" plug - e.g. iDSD micro) it works in the right "direction".

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