Albalá Ingenieros DEM3000C01, Руководство пользователя

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Albalá Ingenieros | Manual DEM3000C01
In the CH. A FAIL and CH. B FAIL boxes:
SDI: Red. Error in the serial digital video signal. This LED lights up when no
signal is present, when the signal does not have the correct binary velocity
or when the cable is too long and the signal arrives with too much
attenuation. Reception of a video signal with EDH or checksum errors in
the audio packets will cause this LED to blink at one second intervals.
AES 1,
AES 2: Red. These LEDs light up when no signal is present at any of the digital
audio inputs or when the sampling rate of the audio received is not
48kHz. The corresponding LED will blink twice within approximately one
second each time that the internal memory overflows or is erased due to
a lack of synchronization with the video signal or when the parity bit of
the audio received is incorrect.
In the central box:
1/2/3/4: Green. These LEDs light up at low intensity to indicate which audio groups
are present in the SDI signal. Whichever LED is lit the brightest indicates
the embedded audio group that is currently being embedded.
GROUP SEL.: Pushbutton. Used to select the group in which the AES/EBU streams will
be embedded.
4.2. Configuration from the front panel
The DEM3000C01 embedder has two independent sections, each of which can embed
an audio group. The SDI stream can carry up to four audio groups, where each group
consists of two or four audio signals that have been independently encoded at 20 or 24
bits. Selection of the group to be embedded is done via a pushbutton on the front panel
or from a computer if the mounting frame has a communications controller installed.
The pushbutton operates in the following manner:
1.- Press and hold the button for more than one second to select the group for Section A
or for more than two seconds to select the group for Section B.
2.- The green audio group LED that was brightest will begin to blink at approximately
one-half second intervals, indicating that the module is in configuration mode.
3.- Use brief presses of the button to make the LED corresponding to the audio group to
be embedded blink.
4.- Press and hold the button for more than one second to confirm the selection.
5.- The associated LED stops blinking and the group to be embedded changes to the
group with the brightest LED.
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