Nevion ADDA-AES8 - Manual (Page 7)

ADDA-AES8 Rev. B
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3 Configuration
The module has two main configurable parameters.
1. Converter gain
2. A/D Internal clock frequency 48 or 96 kHz.
As all Flashlink modules, the module either uses the internally stored configuration, or uses
the configuration on the DIP switches. The DIP switch labeled ‘DIP config mode’ controls this
behavior.
3.1 DIP configuration mode
SW2.8 is the DIP config mode switch.
On: The card will be configured with the other DIP switches. The module will not accept
commands from the system controller but may be monitored.
Off: The module will be configured with the internally stored configuration and may be
controlled with FLP4 commands as listed in chapter 6.
As with all Flashlink modules, stored configurations in the Multicon controller will be applied
to a module that is plugged into a running system, provided that the switch SW2.8 is off and
that the last module present in the system was of the same type.
A module with SW2.8 on, plugged into a running system will overwrite the stored
configuration in the Multicon controller with its own configuration.
3.1.1 Converter gain
The DIP switches are grouped as sets of three switches for each of the stereo converters.
The levels correspond to the maximum sine wave level, otherwise known 0 dBFS.
Switches 000 001 010 011 100 101 110 111
Max. level (dBu) +12 +13.5 +15 +16.7 18 +20 +21 +24
These values are chosen as being the most often used levels in the broadcast industry.
Custom values are available, contact Nevion support or your local sales representative. The
D/A converter gain setting has a 1dB resolution so the gains at 13.5 and 16.7 dB are
rounded up to 14 and 17 dB respectively.
3.1.2 A/D Internal Clock frequency
SW1.8 controls the A/D converter clock when there is no signal at the reference input. If the
switch is in the off position, the internal sample rate of the A/D converters is 48 kHz.
Otherwise, the internal sample rate of the A/D converters is 96 kHz.
3.2 Multicon control
The module may be monitored and controlled with the Multicon system controller. The
converter gains and A/D internal clock frequency may be remotely controlled through the
module’s configuration page of the system controller.
The AES digital audio input signal presence and the on-board power levels are presented on
the info page. Alarms are generated for AES input loss (including the external reference) and
power supply violations.