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Help! Wiring - LED WIZ & Electric ICE Buttons

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Avenger257:
I am in the finally stages of wiring my control panel and, while I have spent 3 hours looking around the GGG website and here, I am still confused.  I am sure the solution is very easy but here are my questions:

1) I have four LED Wiz's... each has about 8 RGB LEDs (24 slots) connected to it (out of the possible 32) for a total of 32 Electric ICE buttons plus the U-Trak LEDs for teh whole control panel.  I have two powered 7 Port USB hubs in the control panel.  I will be connecting 4 U360s, 1 TurboTwist2 Spinner, 1 U-Trak trackball, and 1 IPAC.  Can I also connect the 4 LED WIZ's to the powered USB ports or do I have to bring the dedicated 5V supply from my computer?

2) If I have to bring in the dedicated supply, can I use one wire from the computer and have it run to all four LED Wiz boards? Do I still connect the USB so I can program them? - it appears that some people don't have them connected by USB???

3) Just to make sure I am correct... each RGB drive (the LED board) has four wires.  The red ones all go to the "ground" on the LED Wiz board (I will use a Euro block to connect all of them) and the the remaining three wires from each cable goes into one slot each (1-3 for example) on the LED Wiz.  Aside from bringing in the power cable (5V) to the LED Wiz, is there anything else I would need to do?

I apologize for what may seem to be asking questions about stuff that may have already been asked but I am very confused about the difference between amps, volts, etc etc and I would like to obviously do this well so I don't destroy my equipment or burn down my house!  All of the warnings have me freaked out!

Thanks for you anticipated help!

Franco B:
1) I'm not sure how much power you can pull from the hubs. Each of your LED Wiz's can potentially draw 480mA using 8 RGBs so to be on the safe side I would run a 5v supply. It won't hurt to power them but it will stop you from having any power problems with the LED Wiz'z or other USB devices.

2) Yes you can run one 5v feed from your PSU to supply your LED Wiz's, either in series or in parallel from a linked terminal strip or bus bar. Yes you still need the USB cable attached. The cable wants to be attached to the +5v terminal. You also take power from this terminal to power the LEDs 

3) I haven't got a board to look at but looking at the image on GGGs website I would say 1-3 go to the numbered terminals on your LED Wiz and the other will go to the +5v. The ground is used for connecting the external ground to your PSU. You will also want to install a fuse on the 5v line before it reaches each LED Wiz. I would power the LED Wiz's in parallel from a bus bar etc and use a =>0.5A fuse for each LED Wiz.

Apologies if I haven't explained it very well. If you are struggling I can draw you some diagrams if they would help.

Dr Zero:
You can get some USB hubs also that  are powered themselves to keep the load off of the port they are plugged into.


Here are a couple of examples

http://www.amazon.com/Hi-Speed-Port-USB-Power-Adapter/dp/B000Y8EXSS/ref=sr_1_39?ie=UTF8&s=electronics&qid=1251733826&sr=1-39

http://www.amazon.com/Port-LED-Light-High-Speed/dp/B001AATTD8/ref=sr_1_77?ie=UTF8&s=electronics&qid=1251733865&sr=1-77

http://www.amazon.com/Port-LED-Light-High-Speed/dp/B001AATTD8/ref=sr_1_77?ie=UTF8&s=electronics&qid=1251733865&sr=1-77

Franco B:
Yeah he stated that he already has some powered hubs. I'm just not sure how much current you can pull from them. I had a look at those examples you posted but I can't see anything about power ratings.

I would imagine if the hubs provide at least 1.5-2 amps then you should be ok without the 5v feed. 

Endaar:
I've got 3 LED-Wiz boards connected to a single, powered USB 2.0 hub, and they seem to have plenty of current. They actually work without the hub plugged-in, but are noticeably dimmer.

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