PUSHBUTTON OPERATION
The pushbuttons operate as talk or listen selectors depending on the key configuration. Possible key configurations are:-
► Talk only
► Listen only
► Talk and listen
► Talk and Forced listen
► Dual talk and listen
► Use the level up/down buttons to adjust the crosspoint level
Red - Talk
Green - Listen
Amber - Talk and Listen
Pressing the button and quickly releasing it (less than 200 ms) will “latch” the button and the talk or listen path will stay active until it is pressed again. Pressing and holding a pushbutton down causes the talk / listen path to stay active only for as long as it is held down
To prevent the key on the panel from latching in the talk position, use EHX to set local or global latch disable for the destination port.
When a talk path is active, the talk LED lights bright RED continuously.
When a listen path is active, the listen LED lights bright GREEN continuously Having both talk and listen paths active will produce an AMBER led status