Datasheet

DDM and AES67
The Model 5482 is compliant with the Dante Domain Manager
(DDM) software application. Each of the Model 5482’s Dante
interfaces can function interdependently. However, there is
no requirement that each of the two network interfaces be
part of a DDM domain. One of the Model 5482’s network
interfaces can utilize the security resources of DDM while
the other remains “open.” Each interface can be configured
to support, or not support, AES67 digital audio signals. This
allows a Model 5482 to serve in a unique Dante-to-AES67
bridge function. However, note that when AES67 support
is enabled for an interface the sample rate will be fixed at
48 kHz and only multicast operation will be active.
Pro Audio Quality
The Model 5482’s audio circuitry was designed to meet the
stringent demands of professional audio applications. To
ensure that superior performance is maintained, audio data
passing between the two network interfaces always remains
within the digital domain. To achieve audio data synchro
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nization between the two network interfaces bi-directional
sample-rate-converter (SRC) logic functions are implemented
in high-speed programmable (FPGA) logic. This allows com-
patibility between the two network interfaces, even if they
have widely divergent sample rates and independent reference
clock sources.
Dante Network and Ethernet Data
The Model 5482’s two Dante interfaces can be independently
configured for either Switched or Redundant Dante operation.
In the Switched mode only a single Gigabit Ethernet (GigE)
connection is required. The second Ethernet port can function
either as an active “loop-thru” resource or left unused. In the
Redundant mode two GigE Ethernet connections are made to
two independent LANs, allowing support for Redundant Dante
operation. This ensures that the loss of one network resource
will not result in the interruption of networked audio signals.
For application flexibility one interface can be configured for
Switched Dante operation while the other is configured for
Redundant Dante operation.
As previously mentioned, a third GigE port is associated with
each Model 5482 interface. These are provided for factory-
configuration use only. All six of the Model 5482’s Gigabit
Ethernet ports support twisted-pair signals, each with Auto
MDI/MDI-X capability so no reversing cables are required.
Status LEDs and LCD Display
On the Model 5482’s front panel are 12 LED indicator lights,
a back-lit graphics display, and five pushbutton switches.
Two of the LEDs indicate the status of the AC and DC input
power sources. A set of five LEDs is associated with each of
the two network interfaces. These reflect the status of the
interface’s Dante and management network connections.
The graphics display allows the monitoring of a number of
operating conditions, including Dante names and network
configurations, product firmware versions, and interface audio
sample rates. The five pushbutton switches can be used to
select which information is displayed as well as allowing key
network parameters to be revised for each interface. These
include the IP configuration method, IP addresses, and subnet
mask values.
LEDs on the Model 5482’s back panel indicate the status of
the two network interfaces, specifically two for each of the
six Gigabit Ethernet connections. Two additional LEDs reflect
the status of the USB interfaces which are used to update
the Model 5482’s firmware.
Installation and Operating Power
The Model 5482 is housed in a rugged yet lightweight
aluminum enclosure that is designed for use in fixed or mobile
facilities. It mounts in one space (1U) of a standard 19-inch
rack enclosure. The unit allows an AC mains source of 100-
240 V, 50/60 Hz to be directly connected. It can also be pow
-
ered using a 10–18 volt DC source that is connected via a
broadcast-standard 4-pin XLR connector. If both AC and DC
power sources are connected the Model 5482 will be powered
by the AC mains supply. Should the AC mains source fail the
DC source will provide operating power with no interruption
in the performance of the unit.
Firmware Updating
The Model 5482 was designed so that its performance and
capabilities can be enhanced in the future. Two USB connec
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tors, accessible on the unit’s back panel, allow the main and
programmable logic (FPGA) firmware (embedded software)
to be easily updated using a USB flash drive. To implement its
two Dante interfaces the Model 5482 uses two of the Audinate
Brooklyn II modules. The firmware in these modules can be
updated via the unit’s Ethernet connections, helping to ensure
that the Dante capabilities remain up to date.
Studio Technologies, Inc. Model 5482 Dante Bridge, Issue 2, Page 3