This is a full-use standard whose scope is to amend the base IEEE 1394 document set (i.e.,
IEEE Std 1394-1995 as amended by IEEE Std 1394a-2000 and IEEE Std 1394b-2002) to specify alternate
physical layer(s) (PHYs) that provide greater than S100 data rate over Category 5 (CAT-5) or better cable.
This PHY is capable of negotiating with a peer device to select the appropriate next higher protocol layer.