Today I tried to connect our Sinar eMotion 75 to the Schneider proprietary cable for Eyelike digital backs. Unfortunately, it is missing one of the ports that was present in the Eyelike Precision series of digital backs. So, for Schneider Electronic Shutters, you'll need the ES Controller. I'm assuming the eMotion 22 has the same port configuration.
Steve Hendrix
PPR Digital