How do I trigger a Quantum 4i Radio Slave from a Quantum T2 QFlash (upgraded to digital)?

I tried connecting from the 2 prong connection on the side of the QFlash to the PC connection on the 4i, but the PC connection seems to function only for an outgoing signal to the flash unit. Can I use a cable with a 2 prong connection at each end to connect the QFlash to the 4i to trigger it?
1 person has
this question