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1
Introduction
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2
Installation
These units provide broadcast quality audio communica�on between
studios, offices and different areas in a facility or building complex, using
RAVENNA/AES67 as the transport mechanism, allowing simple CAT 5
cabling and expansion.
RAVENNA (of which AES67 is a subset) allows for the distribu�on of audio
across a network. The AVN range use RAVENNA as the communica�on
method providing compa�bility with other AES67 systems.
The AVN-TB20AR and AVN-TB20AD are advanced feature set units. Each of
the 20 channels can be configured to provide communica�ons with other
remote networked intercom units or AoIP streams, or with local 4-wire
systems. They have analogue and digital audio inputs that can be used to
distribute audio over a network to other RAVENNA/AES67 capable systems,
and they have analogue outputs for monitoring of remote sources. It can
also be used as a 4 wire bridge, connec�ng remote AoIP sources with local
audio inputs and outputs.
A call back system monitors missed intercom call requests and makes it easy
to make a return call, and an independently configurable page func�on can
contact selected units with priority over standard intercom calls if required.
There are 2 independent monitor channels that can route the audio from a
local input or AoIP source to the headphones and speaker. This could be
used to take an IFB feed or an off-air transmission signal or simply to listen
to any audio source.
A user configurable GPIO system, with 10 physical ports and 10 virtual
ports, can be used to control opera�onal func�ons on local or networked
units, or drive outputs as selected states change, and a voltage free relay
contact can be used to operate external equipment.
A built-in web server provides complete configura�on control of the units
and also allows for firmware updates and configura�on backup. An Ember+
interface also gives access to the configura�on op�ons as well as providing
remote control and monitoring of the GPIO and virtual GPIO ports.
The front panel OLED display with naviga�on control gives access to the
configura�on se�ngs and also provides status and connec�vity
informa�on.
