User guide
Status area
The Status area provides visual indications of the connection status:
Figure 14. Status Area
NOTE: Only link 1, connecting the Tx port of the transmitter to the Rx port of the
receiver, is required for video, audio, and serial command transmission. Link 2 is
not required but, if it is not enabled, the ability to configure the system is limited
by a lack of communication from the receiver to the transmitter.
Video present indicator — Shows green to indicate the presence of composite, S-video, or
component video signals.
Audio present indicator — Shows green when the transmitter detects an audio signal
at or more than 35 dB below the nominal level. Stays on until the signal falls below this
threshold continuously for 10 seconds.
Loop-out indicator — Only visible if the computer is connected to the receiver.
Link 1 indicator — Shows green when the receiver detects light on link 1 (connecting the
Tx port of the transmitter to the Rx port of the receiver). The receiver reports the status to
the transmitter over link 2.
NOTE: If the computer is connected to either of the transmitter’s control ports and link
2 is disconnected, the link 1 indicator does not show green because, when the
receiver detects light on link 1, it is not be able to pass that information to the
transmitter.
Link 2 (Optional) indicator — Shows green when the transmitter detects light on link 2
(connecting the Tx port of the receiver to the Rx port of the transmitter). The transmitter
reports the status to the receiver via link 1.
The status area also shows the unit type (the transmitter or receiver) and model description
for the unit to which the computer is connected, the unit at the other end of the fiber optic
cable and the COM port on the computer that is connected to the unit.
It also provides information about the horizontal and vertical frequencies of the input signal
and the internal temperature.
FOX Tx/Rx AV • Conguration 21