I need an isolated closing contact, like a relay, but ideally solid state. Rating 24V 100 mA on the contact side would be plenty. 1 kHz operation would be enough as well. I will drive this from 5V 25 mA gpio pins. Ideally with a <10 mA draw!
I've looked at optocouplers, but the ones I can find put VCC on the transistor/contact side; I'd need one with that side having only contacts.
The application is a remote camera trigger with both pre-trigger and trigger inputs, so two channels needed although two singles is fine.
Is there some kind of component or variant I'm missing?