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Thread ID: 59454 2005-07-03 05:33:00 Is this the correct button switch? Nomad (952) PC World Chat
Post ID Timestamp Content User
368875 2005-07-03 05:33:00 Hiya

If you reading Godfather. I went to DSE and got my stuff prior to final soldering the remote cable to my cam works great. Just one issue thou, I went to DSE and asked for a push in push out (turn on/off) button and they gave this button. I tried it abit but I think if you connect the wires, the cam fires, if you press the button, the cam still fires.

Maybe I was rough in my testing .. but I don't want to solder the switch and then know it was wrong and can't get a exchange.

The button is called:
w PB Alternate SPDT 250V 3A

Is this the turn on/off button? It has 3 legs to be soldered, if this is the correcdt button which leg(s) should I solder. My diagram just have 2 connections....


Thanks in advance.

Edit, the 2 other buttons are great (unlockable buttons). Just not sure about this one, this one is for bulb exposure. 		Nomad (952)
368876 2005-07-03 05:49:00 I presume you mean this button?
www.dse.co.nz

It would be so much easier just to quote the Cat number, removes all doubt.

Please be clear and specific what you want the button to do.

Do you want it to make a connection between the two wires ONLY when its pressed in, and the connection is broken when the button is releaded?

If so, you have the wrong button. If not, its the right button. You should use the centre and one of the outer pins.

You have indeed got what you asked for, but if you want something that connects only when pressed, and disconnects as soon as its released you want a MOMENTARY on-off with 2 connections.

What you have with Cat P7575 is a switch that connects from the center pin to one outer pin when pressed, that connection remains until its pressed again, when it connects between the center pin and the other outer pin. It Alternates every push exactly as the clear description in the title suggests.

You should be using a multimeter to confirm that what you are doing is correct, unless the camera is considered a "disposable" one. 		godfather (25)
368877 2005-07-03 06:05:00 Yes that is the correct cat number and URL link P7575.

Thanks, I will use a multimeter..

When pressed I want the connection to be live. When pressed again I want the connection to be off. I will rewire the thingy and test it again :)

So I got the right switch?
May of been I was touching the two outside pins. 		Nomad (952)
368878 2005-07-03 06:13:00 As there is probably not any indication which "position" the switch is in, it will not matter which was round you wire it.

I am assuming just from logic that the centre pin is common, but the multimeter should confirm that.

Assuming the above, just connecting the outer pins means that the switch would never work as you intend it. They are never connected together, each outer pin is connected alternately to the common (centre?) pin, never to each other. So I don'y subscribe to that being the cause.

Are you 100% sure you KNOW what the effect is that you are trying to create using the switch (from the point of the internal camera electronics)?

There could be some very good reasons why the commercial product costs so much, I would always be hesitant connecting to a camera port without knowing exactly what the camera expected to see happening to the pins, both in a logic and a voltage scenario. Unless as suggested, the camera is disposable.... 		godfather (25)
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