I wish to power a GL.iNet GL - AR150 exclusively off the USB ports of an ultrasound machine.
I had thought to use one of these dual A to micro B cables to provide the required 5v & 1 .0 A power.
Does anyone have practical (as opposed to theoretical) experience with this kind of solution.
Is there enough power for consistent reliable operation.
The device would be set up as a wireless client bridge, allowing a single device (the ultrasound machine that is providing power) to connect via ethernet to the AR150, and therefore get on the wifi network.
I don't know if this mode of function is more or less demanding of power.
Let me assure you that there are no public hospitals in Australia that are not strapped for cash.
There is never money to make something that is working, work better.
These machines are all running embedded windows, with the clinical application on top.
Anyway, running a dongle is not going to make the ultrasound machine become autonomous and go crazy.
Sometimes you need to be creative when your resources are limited.
There is the ideal world and then there is the reality of budget constraints.
Although a solution with a Y-cable might work, you should be aware that Y-cables are not part of the USB specification.
Use of a 'Y' cable (a cable with two A-plugs) is prohibited on any USB peripheral. If a USB peripheral requires more power than allowed by the USB specification to which it is designed, then it must be self-powered.
Regarding your question:
If you use a device according to its specification, you can expect it to operate consistent and reliably.
If you use a device outside of its specification (with a Y-cable in this case), then there is no specification which makes sure that it operates consistent and reliably. It may work, but you have no guarantee.