Need some help on powering 16 PINEs

[rahlquist]

I'm a software guy.
I'm good at software engineering, and I have purchased 16 pines recently to run as a slave nodes in my cluster (using a 2xRaspberry Pi as main nodes).
Some academic stuff will be tested on this, later to be executed on Denmarks largest super computer, as part of my PhD.

The question is now: what's the wiring instructions for powering this cluster?
16 china-wall chargers next to each other, does sound like a nice way to burn down your house. So I'd rather not do that. Plus it's a wonky implementation.

I've been suggested this: http://www.amazon.com/Tanbaby-Switching-...typ_im_1_3

By user jproffer on here - and on several discussion threads online.
I see 2 terminals for +- and one for ground.
And then I see 2 terminals for connecting a 230V mains cord, which does worry me a little as I have little to no experience with wiring stuff, so my instinct tells me that working with lethal shock dangers like this, isn't good practice.

However, I do need this cluster powered.

Those 4 terminals I see: 2 for plus, 2 for minus.
How do I expand those into the 16 that I need?
What do I wire into ground..?

Could anyone explain this in a very dummy way to me?

There is a lot of ways you could do this. Looks very similar to this http://www.aliexpress.com/item/High-Qual...53000.html which has better pcitures. So I will make the assumption that it is a similar hookup.

If that is the case looking at the connections your Pine will be connected to the V+ and V- connection. I would recommend avoiding the USB port completely and wire them all through one of the bus connectors. Probably on the Euler bus, looks like pins 2 and 4 are voltage in. Then pick a ground on the Euler bus http://files.pine64.org/doc/Pine%20A64%2...160119.pdf

The remaining leads on the power supply are 7 Earth Ground, 8 Neutral, 9 Line. Those go to your AC source. 

Always test everything with a meter before hooking it to anything.