How to connect two sinking output I/O together?

[GregY]

I'm using NI-6513 card and I would like to know how to connect multiple sinking output I/O's to a common circuit?  The descriptions that I have seen online go from one sinking output to one sinking input, but I would like to know if there is a different set up for multiple sinking output's to one common circuit.

[Ben]

Please tell us more about what you are trying to do.

A mixer sounds like what you are looking for but.... well I leave the but for latter.

Ben

[AnalogKid2DigitalMan]

GregY:

A pull up resistor on each output, each fed to the inputs of individual inverter gates whose outputs are fed to an open collector OR gate?

There are probably more straight forward approaches, it's been a while since I've work with logic gates.

-AK2DM

[Ben]

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AnalogKid2DigitalMan wrote:

GregY:

A pull up resistor on each output, each fed to the inputs of individual inverter gates whose outputs are fed to an open collector OR gate?

There are probably more straight forward approaches, it's been a while since I've work with logic gates.

-AK2DM

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"Phantom OR Gate".

I was not thinking logic but rather 4-20 mA, silly me.

Ben