Atlona Technologies www.atlona.com
16
3.2 Audio signal connection:
“AUDIO INPUTS”, “AUDIO OUTPUTS” audio network interface in RGB matrix switchers can be con-
nected to the audio signal and amplify sources. Audio connection is little more complicated than video. It
has two types of connection: balanced and unbalanced. The balanced connection transmits a pair of bal-
anced signals with two cables. Because Interferences will have the same intensity and the opposite phases on
the two cables; it will be counteracted in the end. For the low frequency extent of the audio signal, it would
be easily interfered under long distance transmission. Therefore as an anti-interference connection, it is
mostly used in Audio connection of special high end devices.
Connection of captive screw audio connectors (unbalanced/balanced)
4.0 Operation Controls for AV0404
“AV” AV Synchronal button: To transfer video and audio signal synchronously by the switcher
Example: To transfer both the video and the audio signals from input channel No.3 to
output channel No.4.
Operation: Press buttons in this order “3”, “AV”, “4””.
“VIDEO” Video button: To transfer only video signals from input channel to output channel
Example: To transfer video signals from input channel No.3 to output channel No.4.
Operation: Press buttons in this order “3”, “VIDEO”, “4”.
“AUDIO” Audio button: To transfer only audio signals from input channel to output channel
Example: To transfer audio signals from input channel No.2 to output channel No.3.
Operation: Press buttons in this order ““2”, “AUDIO”, “3””.
“1,2,3,4” I/O Keypads: Keys to select I/O channels.
