AJA FS4, Руководство по установке и эксплуатации, Страница: 53 / 143

www.aja.com 53 FS4 Frame Synchronizer/Converter v1.1
Preset 1 again, the FS4 instead performs No Action . To prevent unexpected changes in
the GPI IN Response parameters, set these parameters as desired before storing presets; in
the example, set GPI IN 1 to Preset 1 before you store Preset 1.
3.1–4 GPI 1–4 OUT
The setting of this parameter determines whether certain FS4 events will generate a GPI
trigger output at
GPI outputs 1, 2, 3, or 4. The GPI interface pinout is presented in “GPI
Pinouts” on page 122 .
VIDEO Menu Group
The VIDEO Menu Group includes parameters for setting up various FS4 system related
features (video formats, audio level standards, etc.
1 Output Frame
Rate
This parameter selects the system output video frame rate family associated with the
video standard.
NOTE: Changing the Output Frame Rate selection automatically selects a new value for “1 Output
Format” on page 72 . Each Frame Rates selection remembers its own Output Format settings.
2 Genlock Source
This parameter selects the source of reference video used for genlock, either
automatically or explicitly.
3.1 Mon 2K Crop
This parameter selects whether to crop 2K HDMI monitor output rasters to 1920 wide
(and has no effect on the SDI monitor output).
3.2 HDMI RGB
Range
This parameter selects the output range for the HDMI monitor output (and has no effect
on the SDI monitor output).
Full allows a range of 0-255 and SMPTE limits the range to 16
to 235 (see note for details).
No Action (default)
Alarm
No Video
No Ref Does not trigger a GPI output regardless of event.
Generates a GPI out trigger if an internal alarm condition occurs.
Generates a GPI out trigger if no video is detected at the input.
Generates a GPI out trigger if no video is detected at the Ref input.
59/29/23 (default)
50/25
60/30/24 Selects the desired output frame rate family.
Reference (default)
Free run
Input
SDI<n> Use the signal on the Ref connector as the genlock source.
Free run mode (FS4 syncs to its own timebase, not locked to an
external source)
Use the selected SDI input signal as the genlock source.
Off (default)
Crop No cropping occurs on the Monitor Outputs.
Left and right sides of the Monitor Outputs are cropped to 1920.
Full (default)
SMPTE Selects an HDMI output range of 0-255.
Selects an HDMI output range of 16-235.