Nevion AAV-HD-XMUX - Manual (Page 11)

AAV-HD-XMUX(-T/R)/ AAV-SD-XMUX(-T/R) Rev. G
nevion.com | 11
3 Configuration
The XMUX embedding core can be considered as an 18x14 stereo audio router and a 5x4
group router.
The group router is used to transport or shuffle groups without introducing any additional
delay.
The inputs or sources in the stereo router are from the de-embedded audio groups, the AES
and analog audio inputs, the delay line outputs and the two built in generators.
The stereo router outputs or destinations are the groups of embedded audio in the output
video, the AES outputs and the delay line inputs.
A normal de-embedder configuration would route the de-embedded audio to the AES
outputs.
A normal embedder configuration would be to route the audio inputs to the appropriate
embedder group outputs.
The AAV-HD-XMUX module can do both at the same time!
Many other configurations are possible and the module may be dynamically controlled as an
18x14 audio router via the system controller, GYDA.
Full control of the module is performed with the GYDA system controller. Controls only
possible with GYDA are:

The data transmission parameters and channel selection.

The output processing of each stereo signal (LR, RL, LL, RR, MS, Sum, ØLR, LØR).

The delay lines delays and routing.

Video and audio generator configuration.
ATTENTION: The switch settings are only read when the module is powered up.
3.1 DIP switch Configuration
Full hardware control of all of the parameters in the module would require either, a
complicated menu type of control interface with a display and control buttons; or an
enormous number of switches. In many cases, most of the parameters will not be changed
from the default settings. It was decided to control only the most used parameters with
switches. This still requires the use of 24 switches.
The switches are only read if SW1.8 (DIP configuration mode) is in the on position.
There are not enough switches on the module to allow full stereo routing configurations.
Groups of four channels are routed together as units, for example: AES input channels 1&2,
embedded audio group 1.
3.1.1 Destinations
The switches control the routing of signals to the outputs or destinations. There are four
embedded audio groups and one pair of AES outputs. The configuration assigns sources to
output groups and the pair of AES outputs. This allows the same input signals to be routed to
several outputs.
There is a group of three switches for each of the outputs. The combination of the three
switches set the input source or disables the output e.g.

Group 1 embedded output is controlled by switches on SW1 positions 1, 2 and 3.

AES outputs are controlled by switches on SW3 positions 1, 2 and 3.