Putting it all together

[Daemon]

Hi again

I am just starting to piece my setup together.(I am a newbie)
I want to install a rocker switch in my pc case to turn the grinch controller on and off independantly of the computer(obviuosly it will need to be running when the grinch is)

I have modded the case to include the switch and I have attached a photo of the switch. I have attached another photo of the power connector I intend to rob the red cable for the 5vDC and the black cable for the 0vDC(gnd). (Why is there 2 of each? Should I test in case one is 12v?)

Can anyone confirm for me how to wire up the switch? On the side of the switch it has 0 up the top 125v in the middle and 0 down the bottom.

The switch is a bit arse about face and its putting me off with the off button at the bottom and the on button at the top, seems to be backwards to me.

Am I right that I want to go red 5vDC from the power connector to the middle prong(either left or right) and 0VDC from the black cable from the power connector to the top prong and then run an additional red and black from the prongs opposite out of the case to the grinch and connect the red to the top pin if you are holding it with J1 and J2 up the top left and the black to the bottom pin.

Cheers
Steve

[WireWrap]

Hi again

...

The switch is a bit arse about face and its putting me off with the off button at the bottom and the on button at the top, seems to be backwards to me.

Am I right that I want to go red 5vDC from the power connector to the middle prong(either left or right) and 0VDC from the black cable from the power connector to the top prong and then run an additional red and black from the prongs opposite out of the case to the grinch and connect the red to the top pin if you are holding it with J1 and J2 up the top left and the black to the bottom pin.

Cheers
Steve

Steve, this is a "double-pole, double-throw" toggle switch. The way it works is the two contacts in the middle are each connected to the outer terminals (on each respective side). The thing to mess with your mind is that, USUALLY, when the toggle is down, the center (or "common") contacts are connected to the TOP pair, and vice versa.

So you'll want to connect the Red lead from the power supply to one of the center contacts, and the Black to the other center contact. Then, if your toggle is UP for on, connect the Red and Black leads to the Grinch to the "lower" pair of contacts, keeping the colors (and polarities) on the same sides of the switch - Red to Red on one side and Black to Black on the other.

The way you described it would short out the power supply. :shock:

If this isn't clear let me know & I can elaborate. If you have a multi-meter, (before you wire the switch) set it to read resistance (Ohms) and touch the leads to the center contact on one side and see which of the outer contacts on that side is connected (Zero Ohms) for each position of the switch.

I can't tell from the picture, but if the toggle has a center position, not just up or down, then in that center position the center contacts wil not be connected to either outer set. The plate suggests that it is two position, but those can be misplaced.

[Daemon]

Steve, this is a "double-pole, double-throw" toggle switch. The way it works is the two contacts in the middle are each connected to the outer terminals (on each respective side). The thing to mess with your mind is that, USUALLY, when the toggle is down, the center (or "common") contacts are connected to the TOP pair, and vice versa.

So you'll want to connect the Red lead from the power supply to one of the center contacts, and the Black to the other center contact. Then, if your toggle is UP for on, connect the Red and Black leads to the Grinch to the "lower" pair of contacts, keeping the colors (and polarities) on the same sides of the switch - Red to Red on one side and Black to Black on the other.

The way you described it would short out the power supply. :shock:

If this isn't clear let me know & I can elaborate. If you have a multi-meter, (before you wire the switch) set it to read resistance (Ohms) and touch the leads to the center contact on one side and see which of the outer contacts on that side is connected (Zero Ohms) for each position of the switch.

I can't tell from the picture, but if the toggle has a center position, not just up or down, then in that center position the center contacts wil not be connected to either outer set. The plate suggests that it is two position, but those can be misplaced.

Thanks for the reply
I think I understand that. So I connect one red and one black from the psu to the center contacts and seeing as my switch is up in the on position I connect the new red and black leads I am going to run out to the grinch to the lower connectors making sureto keep the polarity the same, right?
It is definately only a 2 position switch. So as it stands at the moment with the switch down to off,I would expect if I used the multimeter on the center contact and the top contact to get a reading of zero ohms? And on would read zero ohms with thecenter and the bottom contact correct?

Thanks

[WireWrap]

...

It is definately only a 2 position switch. So as it stands at the moment with the switch down to off,I would expect if I used the multimeter on the center contact and the top contact to get a reading of zero ohms? And on would read zero ohms with thecenter and the bottom contact correct?

Thanks

You've got it pegged! Precisely right! :D :D :D

[Daemon]

Wired the switch up with no problems.

Thanks for your help wirewrap.

It not only works but I am still alive as well so its a win-win.

Posted a couple of photos of my shoddy work for you.

[WireWrap]

You're more than welcome. That's the best part of this board, the sharing of information and spreading the talent around. Who knows? It might be you answering someone's question next week. Great job & works as advertised.

Can't beat that!! :D :D :D