Reference Manual
Rio Rancho, NM
1
Inc Output RP Gain 1dB (IO)
This function increments the rear panel gain of one or
more audio outputs in response to a contact closure.
This is normally used with a momentary contact switch.
The range over which the gain of the audio output chan-
nels is allowed to vary is controlled by the Rear panel
output gain controls described below. This function can
be applied to any combination of audio output channels.
Dec Output RP Gain 1dB (DO)
This function decrements the rear panel gain of one or
more audio outputs in response to a contact closure.
This is normally used with a momentary contact switch.
The range over which the gain of the audio output chan-
nels is allowed to vary is controlled by the Rear panel
output gain controls described below. This function can
be applied to any combination of audio output channels.
Recall Memory Preset (MP)
This function initiates the loading of a memory preset
in response to a contact closure. This is normally used
with a momentary contact switch, and can be applied to
any one of the memory presets stored in the DMPA12
memory.
Toggle Mute Outputs (MO)
This function toggles the mute status of one or more
audio outputs in response to a contact closure. If muted,
a contact closure unmutes the channel, and vice versa.
This is normally used with a momentary contact switch,
and can be applied to any combination of audio output
channels.
Momentary Mute Outputs (MMO)
This function momentarily mutes one or more audio
outputs in response to a contact closure. The channel is
muted when the contact closure is made, and unmuted
when it is broken. Normally used with a momentary
contact switch, either a “push to mute” or a “push to
talk” action can be supported (depending on whether a
normally open or normally closed switch is used). This
function can be applied to any combination of audio
output channels.
Run a Macro on Close (RM)
This function initiates the running of a macro in re-
sponse to a contact closure. This is normally used with
a momentary contact switch, and can be applied to any
one of the macros stored in the DMPA12 memory.
Run a Macro on Close/Open (RM2)
This function initiates the running of a macro in re-
sponse to a contact closure, and another macro in
response to the subsequent contact opening. This is
normally used with a momentary contact switch, and
can be applied to any two of the macros stored in the
DMPA12 memory.
When certain functions have been selected and the
control panel is connected to a DMPA12, the Test but-
ton is enabled. Pressing this button simulates a contact
closure on the programmable input and is very useful
for testing the function.
Programmable input status indicators
These display the status of the corresponding program-
mable input when a function has been assigned and the
control panel is connected to a DMPA12. For the Analog
Gain Control function, the indicator is lit red when the
voltage applied to the input is in the upper half of the
allowable 0 to 5VDC range. For all other functions, the
indicator is lit red when a contact closure occurs.
Rear panel output gain controls
These are used to set up rear panel gain control for out-
put channels. This operates as an attenuator, adjustable
from some minimum gain (max attenuation) up to 0dB
(no attenuation). The group consists of these numerical
controls and indicators:
•
Min Gain (minimum gain)
The minimum gain value establishes the bottom end
of the rear panel gain control range. The mimimum
gain value is displayed here and can be adjusted
from “Off” up to the gain preset value. This value
tracks the gain preset value and is automatically
adjusted as required to satisfy the rule:
minimum gain <= gain preset
There are two ways to change the value:
1) Click on the buttons next to the control to run the
value up or down
2) Type a value directly into the control and press
ENTER
•
Gain Preset
The gain preset value establishes the starting point
for rear panel gain control on system powerup. This
normally used to select a gain point somewhere in
the middle of the adjustment range. The user may
then adjust gain up or down from there.
The value may be changed in the same manner as
the Gain Preset control.
•
Rear Panel Gain
these read-only indicators display the current rear
panel gain setting (in dB) for each audio output
channel. These are useful for monitoring the effects
of rear panel control actions.
