Paul C. Buff, Inc. Technical Forum

Can einstein v2 be fired by radio popper px transmitter on camera and a radio
Popper jrx studio receiver synced to the strobe?

No. Radio Poppers rely on the RJ11 connection to adjust power. Einstein does not have the RJ11 connection.

The JrX Studio receiver, when used with a regular sync cord and not the RJ11, should be able to fire an Einstein. Note that you will not have any TTL or remote power adjustment of the Einstein.

Sorry, I should have been clearer. Yes, it will trigger. It will not allow for any adjustment.

Thank you both. I'm not that far down the road
With radio poppers one px transmitter and one
Receiver. I think I'll try the einsteins and buff triggers.

I just tried to do this very same thing tonight. Radio Popper PX transmitter to a Jrx studio receiver and sync cord. The unit will NOT fire :(

The Jrx will fire my speed lights via the sync cord.
I wound up using the the camera's sync port to the Einstein sync port.

Both of those things tells me there is a compatibility issue between these two.

I can't help but notice that the radio popper uses a Stereo jack and the Einstein uses the a Mono Jack, can this be the source of the issue?

Quite possibly. A non-attenuating mono cable should suffice.

I spoke to RP, they say they need a stereo jack on there end. I tried a simple female stereo to male mono.
I will look up a non-attenuating mono cable, but if you know of a source that would be great!

BTW, I am able to fire the the Einstein with it's optical slave by taping up the output of the commander. The Radio Popper PX only needs to be close enough to the magnetic pulse of the light. Since I shoot the speed lights in manual mode they are not sending bak any pre-flashes.
Now the strobe fires in time with the speed lights. This will get me through this weekend at least!

OK I did a search and I see you sell the CSSC cord. That looks to be what your talking about.

Could I use the PC port on the cam into a CST transmitter and purchase a CSXCV Transceiver Module?
I realize I can't adjust the power, but reliability is the goal.

Yes, you can.