DDA-1112 Digital Audio Distribution Amplifier
Guide to Installation and Operation
OPERATION (continued)
STATUS menu
Displays status of the different board alarms. The higher-level
alarm is displayed, even if not configured to activate the
STATUS LED.
ALL OK
indicates an absence of alarm.
REAR PANEL ERROR
Indicates an absence of the rear
panel or an incompatibility between the module and the rear
panel. The STATUS led turns on flashing red
NO LOCK
Indicates that the input stage is not locked on the
incoming AES
.
BIPHASE CODING
Indicates a biphase coding error .
PARITY
Indicates a parity error.
CRCC
Indicates a CRCC error.
SLIPPED
Indicates a sample slipping.
CONFIDENCE
Indicates an input signal up to be low.
INVALID
Indicates an invalid sample.
NON AUDIO
Indicates the audio content is not linear PCM
samples.
NO SIGNAL
Indicates an internal signal level lower than the
selected threshold during a user defined period.
NO SIGNAL DELAY menu
Signal absence is declared when the level signal is lower than
the signal threshold during the selected period, it can be
adjusted from 0 to 255 s. The default value is set to 15 s.
SIGNAL THRESHOLD menu
The absence signal threshold can be adjusted from –72 to –48
dBFS by 6 dB steps. The default value is –60 dBFS.
CABLE CORRECTION menu
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.
MANUAL
This command allows a manual adjustment of the
correction applied to the input signal. The input status is
displayed at the same time to ease the setting.
CONFIGURE ALARM
It is possible to associate the
STATUS
Led colour and/or a
GPI relay activation to each detected error.
Alarm relay activation depends of the ENABLE selection of
the controller board menu GPI REPORT.
ALARM LEVEL
Associates to each error the
STATUS
led
colour: GREEN, YELLOW, RED and FLASH RED. This
selection has no influence on the {STATUS} menu display.
ALARM REPORT
The default value NONE is assigned to
errors. Alarm relay activation will be associated to an error
when GPI is set.
FIRMWARE VERSION menu
UC = Vxxx
Microcontroller firmware version
CPLD = Vx
Programmable logic element firmware
version.
FACTORY DEFAULT menu
RESTORE
Select
RESTORE
to reset all of the menu-adjustable
parameters to a factory-preset state (indicated in the menu chart
by an underline in the list of available choices)
iControl INTERFACE
The operation of the DDA-1112 may be controlled using Miranda’s iControl system.
This section describes the control panels associated with the DDA-1112 and their uses.
Please consult the iControl User’s Guide for information about setting up and operating
iControl.
In iControl Navigator or iControl Websites, double-click on the DDA-1112 icon to open
the control panel.
Status Icons
At the top, to the left of the Miranda logo, are two status icons that report various
aspects of the card’s operation.
The leftmost (CTRL) icon shows whether card configuration is manual [LOC] or via
iControl [REM]. The second icon reports the input status
.
Move the cursor over an icon to see its current status in the message area below the
icons. If there is an error status, the message will appear automatically. If there are
multiple error messages, the display will cycle through them.
The higher level alarm is displayed below inside the Status tab.
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DDA-1112