Page
58
User Manual
9.10 Fader Starts (GPOs)
Fader Starts, or GPOs (General Purpose Outputs) are used to trigger various events from the action of opening a
fader. These events include starting tape machines or CD players, switching on lights, and many others. Prodigy
provides a simple but comprehensive method of setting up the open collector circuits that are used for electronic
triggering. Note that the operation of this software depends on the presence of the GPO card in your PC.
9.10.1 Setting up GPOs
To set up GPOs
Touch
DATA
followed by
GPO
Touch here to
change the name
of this GPO
Shows the current
state of the GPOs,
and will react in
real time.
Touch here to choose
which fader's Elec-
tronic Writing Strip
shows the special
symbols indicating
GPO ON or OFF.
Touch here to set
Output Mode for
a GPO (see below)
Touch here to
toggle the
output polarity
Touch here to
set the ON
triggers (see
below)
Touch here to
set the OFF
triggers (only if
output mode is
continuous)
9.10.2 Output Mode
The output mode of the GPO can be set to any of three states:
Disabled
The GPO does nothing
Continuous
The GPO has separate triggers to turn it on and off. The ON and OFF Triggers are set by touching the appropriate
boxes. They may be related to different faders if required. After the ON trigger has been activated, the GPO stays ON
until the OFF trigger is activated.
Pulse
The GPO turns ON when its ON Trigger is activated, stays ON for the period of the Pulse, then turns OFF. There is
no separate OFF Trigger.
