Can I use an RFS2.2 transmitter on a camera other than Canon, Nikon, or Sony?

Use on a non-matched system is not recommended. For use on cameras other than Canon, Nikon, or Sony, the existing RFS2.1 is recommended but broncolor HS is not supported.

Will an RFS2.2 transmitter fire my RFS 2 packs?

Yes, RFS2.2 in all versions will sync to flash packs or monolights with RFS2.1 or RFS 2, as well as adjust the power output as previous generations of RFS 2 offers. broncolor HS is not be compatible on packs or monolights that do not have HS mode available.