Device configuration
Within the «GPIOs» table, the parameter are listed for either GPIs
and GPOs.
GPI state
GPO state
The GPIO state corresponds to the voltage
applied in relation to the selected GPI
mode.
GPI internal
state
GPO internal
state
The GPIO internal state depends on the
selected GPI/O function.
GPI function
GPO function
Assigns the corresponding function
(Object).
GPI mode
GPO mode
Trigger/switching behavior of the
corresponding GPI/GPO contact. It can be
combined with either level (non-latching) or
edge (latching) triggering, as detailed
below.
GPI function
▪ Display only
Mainly intended as Debug function. Displays the status of the
respective GPIO without any assignment to Objects or Presets.
▪ Power on
▪ Channel mute (Mute Ch A ... Mute Ch D, Mute all)
▪ AmpPreset 1 ... 15
▪ Alarm preset 1 ... 3
▪ Backup 1 ... 3
▪ Input Fallback/Input Override
GPI mode
Off: The corresponding GPI contact is disabled.
Input, level, lo: Level triggered - Lo active -
Input, level, hi: Level triggered - Hi active -
Input, edge, rising: Edge triggered - rising -
Input, edge, falling: Edge triggered - falling -
GPO function
▪ Mains Voltage OK
▪ Power OK
Indicates when the power amplifier stage has reached its full
rail voltage and the device is ready for operation (Þ not
Standby).
▪ Channel error
Ch A Error ... Ch D Error, Error Ch any (cumulative output)
▪ Channel protection
Ch A Protection ... Ch D Protection, Protection Ch any
(cumulative output)
▪ Internal Error
Indicates an internal error of the device which causes an
interruption of the audio signal. Explicitly excluded are "Load
monitoring, System check and Overvoltage or Undervoltage"
conditions/states.
▪ Channel mute (Mute Ch A ... Mute Ch D, Mute any, Mute all)
GPO mode
Off: The corresponding GPO contact is disabled.
Output, level, NO: Level triggered - normally open (NO)
Output, level, NC: Level triggered - normally closed (NC)
GPO manual control: Manual operation (hand control).
Mainly intended for test purposes.
d&b 40D Reference manual 1.3 en26
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