Sure does.. is this application right for you though?
That would be a 'positive' ground setup, where the positive supply voltage *is* the ground on your device.
The negative connection from a battery or switch would then be used to complete the circuit to power the device.
A few cars were wired this way... made things interesting if you accidentally hooked up a negative ground piece of equipment.
Whether you go positive or negative ground is your call to make, and I can't see it making a difference as long as it's a self-powered device. If you are building from scratch, make sure you *never* accidentally connect any typical 'ground' leads (being 0V or -Vcc) to the ground of your project. If this is not your device, and you are looking to power it this way, then you need to make absolutely sure that the 0V or negative lead is not touching ground ANYWHERE or you will short out your battery and possibly some components.
(Why do you call it ground.. if it's in a metal box, please ensure it's meant to be powered this way, or that nothing is connected to the metal box)
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