Interlogix VAD7000 Series - Manual (Page 5)

INDICATOR FUNCTION
Data Input This LED illuminates when an electrical data signal is connected.
Data Output This LED illuminates when a data signal is optically received.
Audio Input This LED illuminates when an electrical audio signal is received.
Audio Output This LED illuminates when an audio signal is optically received.
AGC
This LED (Automatic Gain Control) illuminates to verify the operation
of the gain circuitry.
Optical Level This LED illuminates and verifies a sufficient amount of light received.
Power This LED illuminates when power is applied to the unit.
Video In
This LED illuminates when an electrical signal from a video source
is connected.
Video Out
This LED illuminates when an optical signal from a video source is
received.
Data Input
Power
Video In
AGC
Video Out
Optical Level
Data Output
Audio Input
Audio Output