AJA io hd, Инструкция по установке и эксплуатации

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2 channel unbalanced audio outputs (2x RCA) for monitoring.
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4 channel analog balanced audio inputs and outputs. 4x female XLRs are
provided for input and 4x male XLRs for output.
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IEEE 1394b FireWire™ 800Mbps connector for data between Io HD and
Apple Mac.
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RS-422 Control Port, 9-pin D-sub, for machine control.
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AC power connector with ON/OFF switch, 3 pin (with ground).
Each of these groups of connectors are discussed on the following pages.
Note: Io HD does not require synchronous digital audio inputs.
Connector
Descriptions LTC Timecode Input And Output
Two BNCs provide connections to the house LTC timecode generator or
source. Connections are high impedance. One BNC is for input and the
other for output.
SDI Input and Outputs
BNC connectors are provided for two SDI inputs (only one can be
selected and routed through the Io HD at a time) and two SDI
outputs (independent of the input). SDI inputs and outputs
support SD-SDI and HD-SDI video and embedded 24-bit digital
audio. If peripheral equipment has a variety of inputs/outputs,
look to see if it has SDI I/O, and use it where possible for the
highest quality.
Component YPbPr
Connect component YPbPr video cables from a VTR,
Camera, or other source to the three YPbPr input BNCs:
Y/G, Pr/R, and Pb/B. Then connect the YPbPr Out BNCs
to a monitor, or other component device. Component
input video signals are A/D (input) converted (10-bit).
Similarly, component output video signals are D/A converted (10-bit). Component
video signals are higher quality than composite.
A Note About RGB
—Although RGB is used less in today’s video systems, Io HD
supports it at both input and output. Because Io HD’s (and SMPTE SDI)
native format is YPbPr, AJA recommends the use of YPbPr whenever possible.
Although component video monitors often have RGB inputs, it’s better to use
YPbPr when the monitor supports it. The YPbPr format provides “headroom”
for “superwhite” and “superblack”—and these video levels
will be clipped when
transcoding to RGB. Also, the RGB/YPbPr transcoding involves a level
translation that results in mathematical round-off error. Within Final Cut Pro,
RGB can be configured in the
Audio/Video Settings or Easy Setups menus.