Ross HDC-8223, Руководство пользователя

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HDC-8223 User Manual (Iss. 01) Introduction • 1–3
Video Subsystem Overview
The HDC-8223 features a downconverting scaler, video proc, and user-adjustable aspect ratio
control and zoom control. The HDC-8223 video subsystem also provides the functions described
below.
Rear Modules
The HDC-8223 physically interfaces to system video connections at the rear of its frame using a
rear module.
All inputs and outputs shown in Figure 1.3 enter and exit the card via the card edge backplane
connector. The rear module breaks out the HDC-8223 card edge connections to BNC and other
connections that interface with other components and systems in the signal chain.
For More Information on...
• the required rear modules, refer to the section “ Rear Modules for the HDC-8223 ” on
page 2-3.
Input Select
The HDC-8223 can select from either of two HD/SD-SDI inputs using either manual control, or
settings that provide failover to the alternate secondary input. (Failover is simple signal presence
check only.)
Video Processor
The HDC-8223 provides full color processing control (luma gain and lift, chroma saturation, and
color phase) of the output video.
Scaler Function
The scaler function provides down-conversion to SD from multiple standard SD and HD video
formats and multiple frame rates, with auto-format detect/down-conversion of SMPTE 292/259M
formats. Color framing is preserved on CVBS outputs for all conversions.
The scaler function also provides aspect ratio conversion that provides a choice from several
standard aspect ratios. User-defined settings allow custom user-defined H and V aspect ratio
control, as well as pan/tilt control. Reticule insertion provides safe action area marking as well as
other reticule functions and patterns.
Closed Captioning Processor
This function provides support for closed captioning setup. When receiving HD-SDI, both CEA
608 and CEA 708 are supported, with CEA 608 and CEA 708 (containing CEA 608 packets)
converted to line 21 closed captioning on outputs down-converted to SD.