Avionics Innovations DMP-300 (MP3 Player) Installation Manual - Manual (Page 15)

DMP-300 INSTALLATION GUIDE PAGE 15 OF 20
P/N DMP010 V3.2
4.1.12 Dedicated Annunciators for Triggers 1, 2 and 3
This page allows the selection or deselection of “Dedicated Annunciator Mode” for Triggers 1,
2 and 3. When enabled, this mode causes a separate discrete annunciator to illuminate
whenever the audio track for that trigger is playing. A particular installation could include up to
three dedicated pushbuttons for (particular briefing tracks, background music, etc) along with
an annunciator to indicate when that trigger is active.
Press the button to toggle between “DEDICATED ANN.” (this mode is selected) and “NO
ANNUNCIATOR” (this mode is not selected). The factory default value is “NO
ANNUNCIATOR”.
Notes:
• The annunciator will illuminate whenever the associated track is playing, even if it was
not initiated by the discrete trigger. For example, if a “Prepare to Land” briefing track
is tied to Trigger 1, the Trigger 1 annunciator will illuminate even if the track is selected
from the DMP-300 front panel.
• The BUSY annunciator is redefined as TRIG3_ACTIVE when this mode is selected.
4.1.13 Test External Outputs
This page allows the installer to cycle through all the DMP-300 external outputs, setting and
clearing each one in turn. This function is used during the installation checkout procedure, and
may be used any time an external output needs to be tested. Each press of the button will
activate one output and clear all others except the “All OFF” selection, which turns off all
outputs.
4.1.14 Test External Inputs
This page allows the installer to test the seven external trigger inputs and the external
Play/Pause input. The display shows which input, if any, is currently active. If more than one
input is active, the display will show only the highest priority input. Play/Pause is the highest
priority, followed by Trigger 7, then Triggers 6 through 1 in descending order.
If an input appears to have the wrong polarity, be sure the active levels are set correctly (see
page 12 for more information on setting active levels for inputs).
5.0 Installation Checkout Procedure
After all wiring is double-checked, especially the power and ground connections, the following
procedure should be performed to verify external connections: