NVIDIA Corporation
Quadro FX 4800/5800 and Quadro CX SDI User’s Guide – Version 1.0  21
C
HAPTER 3
Windows–Using the Graphics to SDI Control Panel
Understanding the Status Indicators
TheLEDsontheNVIDIASDIOutputCardconnectorbracketindicatethestatusofthe
SDIoutputsandthesynchronizationinputsignals.
Figure 3.1
SDI Connection LED Indicators
TheactivityoftheLEDsindicatesthesignalstatusasfollows:
• FILLorKEYOut
• Input
Status Meaning
Off (gray)
SDI output is not in use
Steady Green
SDI output has power.
Blinking Green
SDI output is active. 
Status Meaning
Off (gray)
SDI input synchronization is disabled.
Blinking Green
Valid SDI synchronization signal is detected.
SDI Output Card LEDs
FILL KEY INPUT