How fast is 1394?
The 1394 standard defines three signaling rates which, in precise terms, are: 98.304, 196.608 and 393.216 Mbits/s (megabits per second). These rates are referred to in the 1394 standard as S100, S200 and S400. There are efforts underway to expand the standard to include 800 and 1,200 Mbits/s speeds. You can mix and match devices of different speeds on the same bus. Using “isochronous” data transmission, even the S100 implementation supports two simultaneous channels of 30fps (frames per second) broadcast-quality video along with stereo audio.
