Thats obvious. Which set of pins relate to the switch position? it has two positions, in, and out. I dont understand what the dashed lines are about? would the blue relate to "out" and red to "in"?
The numbers represent the two positions of the contacts, its a little difficult to see but the lines at position 2 are "dashed" lines representing an open contact. Position 1 is closed. Position 2 becomes closed when the switch position is changed. I've cleaned up the drawing a little:This circuit is from a latching DPDT switch. How do I know from this which pins are connected when the switch is in the "in" position?
View attachment 272128
That's annoying. I don't want to wait for the parts to arrive before I can accurately design PCB.The numbers represent the two positions of the contacts, its a little difficult to see but the lines at position 2 are "dashed" lines representing an open contact. Position 1 is closed. Position 2 becomes closed when the switch position is changed. I've cleaned up the drawing a little:
View attachment 272132
Each row represents 1 pole of a two pole switch, hence "double pole". The contacts of both poles change position at the same time with one actuation of the switch, hence "double throw". There is nothing in your image that shows which position is set for the "in" position.
Looks like that's what I'll have to do. Or spend a few extra bucks to get a better documented item from digikeyThe datasheet is not clear on this. I would not assume anything until you can test it.
So from that diagram you can confirm pushed in is circuit 2 and out is circuit 1?Am I missing something? Given that it is a locking push button switch is there any alternative other than pushing in to the locked “in” position closes circuit 2 and unlocking it to the “out” position closes circuit 1?
The geometry of the pins and mechanics of the switch seem to preclude any other arrangement.
Well, I wouldn't bet my life or someone else's money on it but I can't see an alternative.So from that diagram you can confirm pushed in is circuit 2 and out is circuit 1?
I would agree. Seems that position #1 would be the normal resting position when the switch is not activated (pushed in). In that scenario #1 would be the active state. #2 would be the alternate state. When pushed in you change the state from #1 to #2, and thus open the contacts from #1 and closing the contacts for #2.Am I missing something? Given that it is a locking push button switch is there any alternative other than pushing in to the locked “in” position closes circuit 2 and unlocking it to the “out” position closes circuit 1?
The geometry of the pins and mechanics of the switch seem to preclude any other arrangement.
it's not worth betting someone else's money on it.Well, I wouldn't bet my life or someone else's money on it but I can't see an alternative.
Understanding how the switch works isn't the issue. The switch's schematic doesn't indicate a direction of movement that maps to the physical part. It's better to confirm with the manufacturer and remove all doubt.Am I missing something? Given that it is a locking push button switch is there any alternative other than pushing in to the locked “in” position closes circuit 2 and unlocking it to the “out” position closes circuit 1?
The geometry of the pins and mechanics of the switch seem to preclude any other arrangement.
From what the DWG shows, That would be my understanding also.Well, I wouldn't bet my life or someone else's money on it but I can't see an alternative.
This sounds good, I'm not working on anything that would be problem if I got it wrong, but I would like it a certain way.Well, I wouldn't bet my life or someone else's money on it but I can't see an alternative.
If the shorting contacts are attached to the plunger, which they must be, then they can only move in one way. When locked in they would be moved to the rear, when out they would be in the front.
Any other arrangement would require a much longer switch body and very different terminal spacing—and be a waste of time to do.
So, I won't "confirm" it, but if I had to make a decision without more information that would be the basis for it.
It's a 90deg switch so it's not completely symmetric. It can be turned, but then the switch points the wrong way.I have a dumb question. Is the switch symmetric,, as these type often are? One position is center pins connected to one side; the other position is center pins connected to the other side. Just rotate the switch 180° to swap pushed/non-pushed action.
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