Datasheet

Studio Technologies, Inc. Model 5482 Dante Bridge, Issue 2, Page 2
Front-panel LED indicators, an LCD display, and five pushbut-
ton switches are provided to view and revise selected operat
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ing parameters. The Dante Controller software application,
available free of charge from Audinate, is used to configure
all Dante network and audio parameters.
Dante Audio-over-Ethernet
Audio data is sent to and received from each Model 5482
interface using the Dante audio-over-Ethernet media net
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working technology. Two separate network interfaces allow
completely independent Dante configurations. Audio signals
with a sample rate of 44.1, 48, 88.2, and 96 kHz and a bit
depth of up to 24 are supported.
The Model 5482-01 allows up to 32 channels in each direc
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tion to be passed (“bridged”) between the unit’s two network
interfaces (32 channels at 44.1 or 48 kHz sample rates and
16 channels at sample rates of 88.2 or 96 kHz). The Model
5482-02 allows up to 64 channels at 44.1 or 48 kHz sample
rates and 32 channels at 88.2 or 96 kHz sample rates.
A special function allows, if desired, the timing reference from
one interface to be used as the reference timing for the Leader
Clock on the other. This will result in the Dante synchroniza
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tion on one LAN to be utilized as the synchronization source
on the other.
Sample rate converter (SRC) functionality is implemented
within field-programmable gate array (FPGA) programmable
logic. This resource ensures that audio that enters on one net
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work interface exits the corresponding network interface with
correctly aligned digital audio information. Each interface in a
Model 5482-01 has 32 Dante receiver (input) and 32 Dante
transmitter (output) channels. Each interface in a Model 5482-
02 has 64 Dante receiver (input) and 64 Dante transmitter
(output) channels. They are associated on a one-to-one basis
with the channels in both interfaces. For example, input 1 on
Network A is associated with output 1 on Network B. Rout
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ing (subscribing) the Dante receiver (input) and transmitter
(output) channels to related devices is performed using the
Dante Controller software applications.
Applications
The Model 5482’s primary application is to interconnect audio
channels associated with two independent Dante networks.
The source and destination of these audio channels would
typically be other Dante-compliant equipment such as mixing
consoles, matrix intercom systems, or digital audio processing
units. The Model 5482 can also perform on the same local
area network (LAN), interconnecting two independent Dante
domains. Each Dante network can have its own Leader Clock
(sync reference), bit depth, and sample rate. SRC circuitry
within the Model 5482 ensures that the audio signals can
pass between the networks with minimal degradation in per
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formance. The Model 5482’s two Dante network interfaces,
and four associated RJ45 jacks, are electrically isolated and
share no non-audio data, minimizing the risk of security issues.
Only uncompressed PCM digital audio signals pass, by way
of the sample-rate-converter (SRC) logic, between the two
network interfaces.
The Model 5482 can be effective when used in both fixed
and mobile applications. Ideal uses would include stadiums,
live-event venues, media production studios, mobile produc
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tion trucks or trailers, and education facilities where “guests”
frequently need to interconnect their Dante equipment with
“house” resources. To achieve network isolation one of the
Model 5482’s network interfaces can be connected to secure
resources while the other network interface remains “open”
for guest use.
As the number of mobile broadcast facilities that utilize
Dante-compliant equipment increases so does the need to
interconnect them with the resources offered by various
venues. Maintaining isolation between these two network
implementations can be important for reasons of both signal
integrity and security. In just minutes the Model 5482 can al-
low audio signals in both directions to be securely traversing
the two networks.
The Model 5482 can also find use within a single Dante net
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work. The unit’s ability to link Dante audio channels that have
different clocking, bit depth, and sample rate characteristics
can be valuable. For example, one piece of equipment may
only support a sample rate of 96 kHz, while the other devices
connected to the network only support 48 kHz. In this situa
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tion the Model 5482-01 would allow the interconnection of 16
channels in each direction, while still maintaining the required
96 kHz and 48 kHz sample rates. (The Model 5482-02 would
allow 32 channels.) In this application it’s interesting to note
that the Model 5482’s Dante Ethernet ports would be con
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nected to the same local-area-network (LAN).