Apple Soundtrack Pro 3 - Manual (Page 502)

In this configuration, you only need your computer and a supported DV device.
FireWire 400
(6-pin)
FireWire 400
(4- or 6-pin)
DV VTR Computer
FireWire for Uncompressed Digital Video
Interfaces such as the AJA Io connect to your computer via FireWire. However, instead
of transferring compressed DV signals, the AJA Io transfers an uncompressed component
4:2:2 signal via FireWire. The AJA Io has a wide range of digital and analog connectors,
as well as RS-422 device control.
Important: Although this type of video interface uses FireWire, it is not used to connect
DV devices. If you want to capture or output DV video, you can connect your DV device
directly to the FireWire port on your computer.
Analog or digital VTR Computer AJA Io
FireWire 400
(6-pin) BNC connector
502 Appendix C Working with Professional Video and Audio Equipment