NVIDIA Corporation
10  Quadro FX 4800/5800 and Quadro CX SDI User’s Guide– Version 1.0
C
HAPTER 2
NVIDIA Graphics-to-SDI
Operating NVIDIA SDI
ThefollowingsectionsprovideanoverviewofSDIoperation:
• “UnderstandingtheConnections”onpage 10
• “AbouttheSoftware”onpage 11
• “RecommendedOperatingPractices”onpage 13
Understanding the Connections
Figure2.4showstheavailableSDIandexternalsyncconnectorsontheNVIDIAQuadro
FXSDI.
Figure 2.4
NVIDIA Quadro FX SDI Connectors
Key portion 
of a dual-link
SDI output
Fill portion 
of a dual-link
SDI output
- or - 
SDI/Composite
Sync Signal
“FILL”“KEY”
“INPUT”
Fill portion 
of a single-link
SDI output
Fill portion 
of a single-link
SDI output