Legacy cards are not officially being supported by EDIUS X anymore. Nevertheless they work without a problem with an older EDIUS 7/8/9 version:

Support for EDIUS 7 and EDIUS 8 (for EDIUS 8, please use this driver - without official support)


Support for EDIUS 7, EDIUS 8, and EDIUS 9 (driver is included in all versions)

Storm 3G Elite: SDI in/out, HDMI in/out + Analog in/out, RS-422