Albalá Ingenieros AAD2000C01, Manual

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Albalá Ingenieros | Manual AAD2000C01
4.1.1. Functions of the INPUT LEVEL LED
Status indicator
The LED shines yellow when the signal level is below the silence threshold.
The LED shines red when the signal level is above the overload threshold.
The LED shines green when the signal level is above the silence threshold but has not
exceeded the overload threshold.
The AAD2000C01 uses the peak level meter to update the status LED. The silence
threshold and overload threshold are adjustable between -10 and +25dBu.
The silence detector has a programmable delay and will only indicate silence when
the signal stays below the silence threshold for a period longer than the programmed
delay.
The AAD2000C01 comes preset from the factory using this LED as a status indicator
with the silence and overload thresholds set to -10 and +22dBu, respectively. The
silence detector delay default is 32 seconds.
Level indicator with movement based upon peak level metering
When used for this function the LED will light up when signals between 0 and
+25dBu are present. The color changes with the peak level of the signal, starting with
white at the lowest peak level and changing sequentially to yellow, orange, violet and
red at the highest level.
Level indicator with movement based upon VU metering
When used for this function the LED will light up when signals between -20 and +3
VU are present. The color changes with the level of the signal measured by the VU
meter, starting with green at the lowest peak level and changing sequentially to
yellow, orange and red. If the signal e3 VU continuously the LED stays red.
The level corresponding to 0 VU can be set to +4 or +8dBu. The factory default is
+4dBu.
Selection of the operating mode for the INPUT LEVEL LED is done via the control
software or via a communications control module located in the same mounting
frame.
4.2. Functional description
The AAD2000C01 module distributes the signal received at the input to four outputs. In
order to augment its capabilities it can access a balanced internal bus that allows one
module to sum signals from several other modules that are installed in adjacent slots in
the same mounting frame.
In order to use the internal bus all modules that will use it must be configured using
program jumpers as detailed in the Installation chapter of this manual.
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