Biamp A4 User Manual Page 143

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Component Objects
Most Logic Gates have no Control Dialog Boxes. They are used only to customize behavior of
other control functions in the system. Logic Gates are connected between the output and input
control nodes of other components in the layout. These components can represent internal or
external control functions.
Examples
Internal: Auto Mixer output nodes; Ducker input/output nodes; Remote Preset Button input nodes.
External: Select 8 output nodes; Volume/Select 8 output nodes; Logic Box input/output nodes.
Logic Gates alter the normal operation of component control outputs in the following ways:
NOT: produces opposite/inverted operation (input HIGH turns output LOW; input LOW turns
output HIGH).
AND: all inputs HIGH causes output to go HIGH (any inputs LOW causes output to go LOW).
NAND: all inputs HIGH causes output to go LOW (any inputs LOW causes output to go HIGH).
OR: any inputs HIGH causes output to go HIGH (all inputs LOW causes output to go LOW).
NOR: any inputs HIGH causes output to go LOW (all inputs LOW causes output to go HIGH).
XOR: any inputs (except all) HIGH causes output to go HIGH (all inputs LOW / HIGH causes
output to go LOW).
Flip Flop: produces toggle/latching operation (input HIGH changes output state, HIGH / LOW).
Logic State: provides manual latching operation only (includes no input node).
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