AJA FS1 - Manual (Page 25)

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17 FS1 Installation and Operation Manual — Connectors
Composite NTSC/PAL
BNC connectors support composite NTSC or PAL standard definition
input and output. Connect an NTSC or PAL composite video cable from a
VTR, Camera, or other source to the Composite In BNC. Then connect the
Composite Out BNC to a destination composite video device. Composite
video signals are A/D (input) and D/A (output) converted (10-bit). Output
is affected by 5.3 Aspect Ratio and 1.3 Component Out parameter settings (see
chapter 4 for discussion of these parameters).
Reference Video (looping)
These two BNC connectors allow you to synchronize FS1 outputs to your
house reference video signal (blackburst or composite sync for SD, or Tri-
level for HD). If you have a sync generator or video equipment source to use
for synchronizing other video equipment in your studio, then connect its
composite output here. When FS1 outputs video it uses this reference signal
to lock to. Reference video does not need to be the same format as the video
input/outputs, but it must have the same vertical rate (for example, 1080i
Tri-level reference video will work for 525 video input and output).
Examples of permissible reference video signals:
• 525 Color Black
• 625 Color Black
• 1080i Tri-level sync
• 720p Tri-Level sync