Which switch ?

[Setch]

I'm looking for a way to switch between input pins on an I/O board using the same input from the control panel and wonder if there is a simple switch I could buy instead of building a circuit.

For example pressing the same button on the CP would activate different inputs on the I/O depending on the position of the switch.

do they exists and if so what are they called.

thanks in advance

Setch

 

[trm]

Hi dude,

How many inputs and outputs do you need? Will it be a 1 to 1 mapping e.g.

• Switch in position 1, input routed to output a,
• Switch in position 2, input routed to output b?

Or will it be a case of 1 to many e.g.

• Switch in position 1, inputs 1, 2 & 3 routed to a, b & c,
• Switch in position 2, inputs 4 & 5 routed to d & e,
• Switch in position 3, input 6 routed to f?

Or is it more of a kind of universal control panel in that a single stick and buttons can be switched to go to the JAMMA loom, or the JVS IO or another device, kind of like an old fashioned printer switch box?

It might aid a solution if you explain the problem you're trying to solve too if I've completely missed the point with my questions

cheers

tim

 

[Setch]

Hi Tim

Ok, that's a far better way of explaining it

It's a 1 to 1 mapping exactly as described at the top of your post, I'm hoping there is a simple switch that does this ?

I have 3 different inputs I need to do this with but was just planning on using 3 switches, perhaps I should just stop being lazy and get a circuit made up instead

setchSetch2011-08-24 19:42:52

 

[trm]

Lo Setchington,

Will you need to send all three inputs to three outputs simultaneously? As in:

• Switch in position A, inputs 1, 2 & 3 route to outputs A, B & C
• Switch in position B, inputs 1, 2 & 3 route to outputs D, E & F
• Switch in position C, inputs 1, 2 & 3 route to outputs G, H & I?

So you'd basically have a magic switch which had one set of three input terminals, and three groups of 3 output terminals?

If so you could easily do this with three triple-selector switches (one input lug and switchable between 3 output lugs) but you'd have to have one of these switches for each of the three input lines. It might be possible to find a switch which would combine all this into one unit if that's what you're thinking of?

If the above outline is right, I think you need to be looking at multi-pole rotary switches - the example on this wiki page is a 3 pole - http://en.wikipedia.org/wiki/Rotary_switch

Digikey (which is a bit of a bitch to search) is probably your best bet as they seem to have everything ever made.

If I've got it wrong let me know and will see if we can figure out what's needed.

 

[guddler]

If you just want to have 1 separate switch for each control that you want to be able to change then just standard single pole switches will do nicely. By that I mean the ones that have three pins on the bottom.

So, for each control you'd have the button (or whatever it is) wired to the centre pole and the lower pole wired to one of the inputs you want it wired to, the top one to the other. Flicking the switch will then connect it to which ever one you want. Repeat for each button.

As Tim says, things get a lot more complicated if you want to control a set of more than one buttons with a single switch - least I think that's what he's saying

[EDIT] I MUST switch OS X Lion's bloody spell corrector off. It's driving me potty!!guddler2011-08-24 22:52:02

 

[cliff_poole]

How about a four pole three way rotary switch ?.

 

[trm]

Time here Cliff has rather succinctly said what I was waffling about

 

[Setch]

Thanks for the information guys,

I thought a single pole switch would do the job but just wanted it confirming

I liked Tim's ( and subsequently Cliffs) idea of the rotary switch idea, don't worry Tim I got the idea so popped to Maplins and brought a 4 pole 3 way rotary switch along with a little project box to have a go, not 100% on the required wiring but nothing a google search and a bit of multimeter probing won't solve.

once I get a break from house renovation I will put my plans into action and post more details, Guddler you may find this handy too for your ID3 twin

setchSetch2011-08-25 20:15:20

 

[trm]

Nice one dude. If you post up a photo or link to the switch I can mark up how I think you need to connect the wires. Basically you're using each pole of the switch to handle one input and its three outputs, so you wire the input line to the contact arm on the switch and then as it turns, it'll route to a specific output. Having a 3 way switch lets you "stack" the other two inputs onto the switch so they all get routed out as you turn the knob.

I've probably made that more confusing by trying to explain it sorry