DDA-1112 Digital Audio Distribution Amplifier
Guide to Installation and Operation
Config Tab
No Signal Delay sub-tab
This tab sets the card’s behavior in the event of a loss or absence of audio
signal content.
A signal absence is declared when the signal level is lower than the signal
threshold during the selected period.
The threshold can be set through the pull-down box to –72, -66, -60, -54 or -
48 dBFS, the default value is –60 dBFS.
The signal absence period can be adjusted from 0 to 255 seconds. The
default value is set to 15 s, an input box is available to enter a numerical value
directly.
Cable Correction sub-tab
Mode MANUAL
This mode allows a manual adjustment of the correction applied to the input
signal. Look at the input status icon to facilitate the setting. An input box is
available to enter a numerical value directly.
Mode AUTO
A START will initiate an automatic sequence, indicated by PROCESS. When
the input status becomes correct it will stop and SUCCESS will be displayed.
FAIL will be displayed to indicate that no correction has been found that will
yield a correct input status
Load Factory
The Factory profile is a read-only set of factory-selected values that can be
used to return your DDA-1112 to a standard operating condition.
See the DDA-1112 Menu, page 3, to see the default values for all parameters.
Alarms Tab
Selecting the Alarm config button opens a separate window
for error status reporting. The alarm Configuration Panel
shows all measured parameters and offers the following
options for each:
Choose an alarm Name, use the pull-down box in the
Overall alarm column to select the level associated to this
alarm: Disabled, Mino, Major or Critical.
Check Log events to enable logging. The result is stored in a
database managed with GSM n iControl Navigator.
In the bottom of the column Status/Name, the Card LED
color follows the status of the physical card LED, as defined
in the front panel menu Configure Alarm (page 4).
The overall Status is reflected by the color of the indicator
attached to the card in iControl Navigator. It is also
displayed in the upper left corner of the iControl Interface of
the DDA-1112.
GSM is a dynamic register of all the system alarms, it is also
an alarm provider for external applications
.
DDA-1112
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