AJA IoXT - Manual (Page 10)

Io XT v10.4 www.aja.com 10
The AJA Control Panel allows selection and adjustment of some HDMI parameters; please
see Chapter 3—for more information on Control Panel operation.
RS422 Machine Control A female DE-9 connector on Io XT provides connection for VTRs, camcorders, disk media
servers, and other devices using RS422 SMPTE (Sony) protocol. (Connector pinout is
listed in Appendix A, see
“Machine Control” on page 54 .)
Component Video
Output
Io XT features a group of 3 BNC connectors for output of component, composite and
Y/C functions. The signals are labeled on the BNC connectors on the rear panel of Io XT.
A Note About YPbPr: Component Video, or YPbPr, has been given several names over time. YUV, Y/R-Y/B-Y, and
YCbCr, are just some examples. Although these various formats have some differences in
levels, they are all basically the same. Io XT uses the modern YPbPr terminology exclusively. Io
XT supports three different types of YPbPr: SMPTE/EBU N10, Betacam (NTSC), and Betacam
(NTSC Japan). These three formats differ in level only and are configured via the AJA Control
Panel.
Reference Video and
LTC Input
Two BNC connectors on Io XT provide reference Input and Output. The Reference Video
input can also be used for LTC input. The selection of Reference (sync) or LTC is set using
the Io XT Control Panel.
In Video Pass-through mode, these connectors are effectively loop-through. Supplying
reference signal to the Reference input allows you to synchronize Io XT outputs to your
house analog reference video signal (or black burst). If you have a sync generator or
central piece of video equipment to use for synchronizing other video equipment in your
studio, then connect its analog composite output here. When Io XT outputs video, it uses
this reference signal for locking. When connecting a reference video source, the locking
signal should be the same format as the Primary format selected in the Io XT Control
Panel. It is possible in some circumstances to use an alternate format video signal as long
as the basic frame rate is compatible.
In This Manual
Chapter 1 Is the introduction you’re reading, listing features, box contents, and system
requirements.
Chapter 2 Provides complete instructions for installing and configuring the AJA Io XT. The user is
guided through unpacking, cabling the Io XT, installing Io XT Mac Software, then getting
it up and running. Important configuration information is also provided on video settings
and use of genlock/external reference.
Chapter 3 Discusses operational aspects of Io XT and how to work with 3rd-party software.
Appendix 4 Discusses troubleshooting problems with your system and what to do when there’s a
problem you can’t solve.
Appendix A Presents a list of technical specifications for the product.
Appendix B Provides important Safety and Compliance information.
The balance of the book provides Warranty information and an Index.