14.1.4. Operation by control input

[Pulse trigger]

Use this method to activate operations for which no definite end can be defined, such as "VOL UP/DOWN" (Volume Up/Down), "LOADBANK" (Scene memory recall), and "CH ON." Minimum pulse width is 100 ms.

Over 100 ms

High

Low

State changes at the falling edge.

[Level trigger]

Use this method to activate "CH MUTE" (Channel mute), "POWER" (Power ON/OFF remote function), "EMG- MUTE" (Cut-off by emergency control), paging broadcasts, and other operations of which start and end must be defined.

Activated only for this duration

High

Low

Start

End

For "CH MUTE," "POWER," and "EMG-MUTE" functions, if operated at the front panel (EMG-MUTE does not accept this access from the front panel) or if other control input to which the same function is assigned is fed, their states are changed by subsequent panel operations or control input activations. The following example shows the change in operation when POWER (Power ON/OFF remote function) is assigned to Control inputs 1 and 2;

Control input 1

Control input 2

Unit operation

Power ON

Control input 1 will still keep the power ON after Control input 2 turns the power OFF, however the unit's power is OFF.

99

Page 99
Image 99
Vax M-9000 operating instructions Operation by control input Pulse trigger, Level trigger