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Model 5205
Mic/Line to Dante Interface
User Guide
Issue 4, November 2021
This User Guide is applicable for serial numbers
M5205-00151 and later with application rmware 2.3
Copyright © 2021 by Studio Technologies, Inc., all rights reserved
studio-tech.com
50280-1121, Issue 4
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Mic/Line to Dante Interface
Model 5205
Table of Contents
Revision History............................................................ 4
Introduction ................................................................... 5
Getting Started ............................................................. 7
Connections.................................................................. 8
Dante Conguration...................................................... 9
Operation ...................................................................... 9
Technical Notes ............................................................ 12
Specications ............................................................... 16
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Mic/Line to Dante Interface
Model 5205
Revision History
Issue 4, November 2021:
• Updates specications and incorporates general improvements.
Issue 3, August 2021:
• Documents that the P48 status LED will no longer necessarily be blue in color.
Issue 2, August 2017:
• Documents that the unit now supports the STcontroller software application.
Issue 1, August 2015:
• Initial release.
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Mic/Line to Dante Interface
Model 5205
Introduction
The Model 5205 Mic/Line to Dante Interface is a general-purpose audio device that
supports applications utilizing the Dante®
Audio-over-Ethernet media networking
technology. Two analog microphone or
line-level audio signals can be connected
to the Model 5205. They are amplied as
required and then converted to digital audio
channels on an associated Dante connection. With the inherent interoperability of
Dante, the Model 5205 can be used with
other Studio Technologies Dante-enabled
products or a multitude of devices from
many other manufacturers.
Microphone or line-level balanced analog
audio signals are connected using two
3-pin XLR connectors. The gain of the
associated preamplier circuitry can be
selected for 0, 20, 30, 40, 50, or 60 dB.
P48 phantom power is provided to support
condenser microphones. LEDs display
the status of the gain and phantom power
functions. Multi-step LED meters provide
conrmation of the level of the two Dante
transmitter (output) audio channels.
The gain of the preampliers and on/o status of the P48 phantom power sources can
be selected locally using the pushbutton
switches. They can also be monitored and
selected remotely using the STcontroller
application.
The audio quality of the Model 5205’s
two audio channels is excellent, with low
distortion, low noise, and high headroom.
Careful circuit design and rugged components ensure long, reliable operation.
A wide range of applications can be supported, including TV, radio, and streaming
broadcast events, corporate and govern-
ment AV installations, and post-production
facilities.
The Model 5205 requires an Ethernet
connection to supply both the data interface as well as Power-over-Ethernet (PoE)
power. This requires an Ethernet connection from a PoE-enabled Ethernet switch.
Alternately, the Model 5205 can be powered by an external midspan PoE power
injector.
Applications
The Model 5205 is perfect for use in
conjunction with a variety of xed and portable audio applications where one or two
analog audio signals need to join a Dante
“network.” The unit’s high-performance
audio circuitry allows virtually any source
to be handled correctly. Essentially all
Figure 1. Model 5205 Mic/Line to Dante Interface front and rear views
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Mic/Line to Dante Interface
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condenser, dynamic, or ribbon microphones are compatible, as are most balanced and unbalanced analog line-level
sources. The simple user controls, along
with an extensive set of status indicators,
help to ensure optimum performance is
maintained. With the unit’s compact size
and PoE powering, it’s simple to deploy
multiple units to integrate a distributed set
of sources into a Dante application. For
permanent applications there’s no reason
why a Model 5205 can’t reside within an
equipment rack or be mounted, using optional brackets, underneath a table or onair studio set. In a conference room setting
the unit can be permanently connected to
a PoE-enabled Ethernet port, ready to accept a signal source from various user-provided devices.
Mic/Line Inputs
Two microphone or line-level analog
audio signals can be connected to the
Model 5205’s 3-pin female XLR connectors. The preamplier gain of each chan-
nel can be independently adjusted from
among six settings: 0 (line), 20, 30, 40,
50, or 60 dB. To support condenser micro-
phones P48 phantom power can be independently selected as required for each
channel. LEDs are provided to display the
conguration of the gain and P48 phantom
power functions.
Six pushbutton switches, located on the
Model 5205’s front panel, allow local
selection of the preamplier gain and P48
phantom power on/o status. The STcon-
troller application allows personal computer users to both view and change the gain
of the preampliers and the on/o status of
the P48 phantom power sources.
Audio Quality
The Model 5205’s audio performance is
very good. The low-noise, wide dynamic-
range preamplier circuitry ensures that
input audio quality is preserved. The outputs
of the preampliers are routed to high-performance analog-to-digital conversion (ADC)
sections that support sampling rate of 44.1,
48, 88.2, and 96 kHz with a bit depth of 24.
A precision voltage-reference integrated
circuit supports the ADC circuitry in perform-
ing accurate signal conversion. The audio
signals, now in the digital domain, are connected to the Dante interface section where
they are packetized and prepared for transport over Ethernet. The P48 phantom power
source is extremely low noise, providing
microphone power while causing little signal
degradation. This is important for demanding applications.
The mic/line inputs were carefully designed
for use in permanent, as well as portable
and eld, applications. Extensive ltering
minimizes the chance that radio frequency
(RF) energy will interfere with the audio
input signals. Other components were in-
cluded to specically address ESD (“static”)
situations, helping to ensure long-term
reliable operation.
Metering
Two 8-step LED meters provide a real-time
level indication of the two Dante transmitter
(output) channels. Scaled in dBFS (decibels
referenced to full scale digital) the meters
oer a direct view of the audio signal levels
as they are transported via Dante in the
digital domain. This is important as optimal
audio performance requires transporting
signals at their proper levels — without an
accurate indication this can be dicult to
achieve.
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Mic/Line to Dante Interface
Model 5205
Ethernet Data and PoE
The Model 5205 connects to an Ethernet
data network using a standard 100 Mb/s
twisted-pair Ethernet interface. The physical interconnection is made by way of a
Neutrik® etherCON RJ45 connector. While
compatible with standard RJ45 plugs,
etherCON allows a ruggedized and locking
interconnection for harsh or high-reliability
environments. An LED displays the status
of the network connection.
The Model 5205’s operating power is provided by way of the Ethernet interface us-
ing the 802.3af Power-over-Ethernet (PoE)
standard. This allows fast and ecient in-
terconnection with the associated data network. To support PoE power management,
the Model 5205’s PoE interface reports to
the power sourcing equipment (PSE) that
it’s a class 2 (low power) device. An LED is
provided to indicate when power is being
supplied to the Model 5205.
Dante Audio-over-Ethernet
Audio data is sent from the Model 5205
using the Dante Audio-over-Ethernet
media networking technology. As a Dan-
te-compliant device, the Model 5205’s two
transmitter (output) audio channels can
be assigned to other devices using the
Dante Controller software application. The
bit depth is 24 and sample rates of 44.1,
48, 88.2, and 96 kHz are supported. Two
bi-color LEDs provide an indication of the
Dante connection status.
located on the unit’s back panel, allows the
application rmware (embedded software)
to be updated using a USB ash drive.
To implement the Dante interface the
Model 5205 uses Audinate’s UltimoX2™
integrated circuit. The rmware in this
integrated circuit can be updated via the
Ethernet connection, helping to ensure that
its capabilities remain up to date.
Getting Started
What’s Included
Included in the shipping carton are a
Model 5205 Interface and a printed copy
of this guide. As a device that is Power-
over-Ethernet (PoE) powered, no external
power source is provided. Should a PoE
midspan power injector be required it must
be purchased separately.
Mounting Options
There is no provision for directly mounting
one or more Model 5205 units in an equipment rack. However, the overall height of
the unit was carefully selected so that it
could be placed without interference on a
single space (1U) rack shelf. The Model
5205’s enclosure width allows up to four
units to be placed side-by-side on a 1U
shelf that’s mounted in a standard 19-inch
equipment rack. Hook-and-loop (“Velcro”)
tape can be used to secure the Model
5205 units to the shelf.
Future Capabilities and
Firmware Updating
The Model 5205 was designed so that
its capabilities and performance can be
enhanced in the future. A USB connector,
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A set of mounting brackets is available to
allow a Model 5205 to be attached to the
underside of a desk, table, broadcast set,
or other at surface. The order code for
this item is MBK-02.
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Mic/Line to Dante Interface
Model 5205
Connections
In this section signal interconnections
will be made using the connectors located
on the back panel of the Model 5205.
An Ethernet data connection with Power-
over-Ethernet (PoE) capability will be
made using either a standard RJ45 patch
cable or an etherCON protected RJ45
plug. Microphone or line-level signal
sources will be connected using two cable-
mounted 3-pin male XLR connectors.
Ethernet Connection
A 100BASE-TX Ethernet connection that
supports Power-over-Ethernet (PoE) is
required for Model 5205 operation. This
one connection will provide both the Ethernet data interface and power for the Model
5205’s circuitry. A 10BASE-T connection is
not sucient and a 1000BASE-T (“GigE”)
connection is not supported unless it can
automatically “fall back” to 100BASE-TX
operation. For PoE-supporting Ethernet
switch power management the Model
5205 will enumerate itself as a PoE class 2
device.
The Ethernet connection is made by way
of a Neutrik etherCON protected RJ45
connector that is located on the back panel
of the Model 5205. This allows connection
by way of a cable-mounted etherCON
plug or a standard RJ45 plug. The Model
5205’s Ethernet interface supports auto
MDI/MDI-X so that most cabling implementations will be correctly supported without
requiring a “cross-over” or “reversing”
cable.
Ethernet connection will provide both data
and Power-over-Ethernet (PoE) power.
There may be situations where the associated Ethernet switch does not provide
PoE power. In these cases an external
PoE midspan power injector can be used.
As long as the midspan power injector
is 802.3af-compatible it should function
correctly. Midspan units are available
from a variety of sources, including Studio
Technologies.
Mic/Line Inputs
The two mic/line inputs are intended for
connection with balanced microphone or
line-level analog audio signal sources.
Typically these sources will be associated
with professional audio equipment such
as dynamic, condenser, or ribbon microphones, audio consoles, video storage and
playback systems, wireless microphone
receivers, and audio testing equipment.
The Model 5205 provides two 3-pin female
XLR connectors for interfacing analog au-
dio signals with the mic/line inputs. For balanced signals pin 2 should be connected
to signal + (high) and pin 3 should be signal – (low). Pin 1 should be connected to
the shield of the interconnecting cable.
Unbalanced signals can also be connected. In most cases signal + (high) should
be connected to pin 2 and common/shield
should be connected to both pins 1 and 3
of the 3-pin male XLR mating connector.
If this connection arrangement results in
hum or noise it may be eective to try connecting signal + (high) to pin 2 and signal
common/shield only to pin 3.
Ethernet Port without PoE
As previously discussed in this guide, the
Model 5205 was designed such that the
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Dante
Conguration
Several Model 5205’s Dante-related parameters can be congured. These conguration settings will be stored in non-volatile
memory within the Model 5205’s circuitry.
Conguration will typically be done with the
Dante Controller software application which
is available for download free of charge at
audinate.com. Versions of Dante Controller
are available that include support for the
Windows® and macOS® operating systems.
The Model 5205 uses the UltimoX2
2-input/2-output integrated circuit to implement the Dante architecture. However, only
the two transmitter (output) channels are
utilized. This dictates which parameters
can be congured and what choices are
available.
The two transmitter (output) channels
associated with the Model 5205’s Dante
interface must be assigned to the desired
receiver (input) channels. Within Dante
Controller a “subscription” is the term used
for routing a transmitter ow (a group of
output channels) to a receiver ow (a group
of input channels). The number of trans-
mitter ows associated with an UltimoX2
integrated circuit is limited to two. These
can either be unicast, multicast, or a combination of the two.
The Model 5205 will support audio sample
rates of 44.1, 48, 88.2, and 96 kHz with
a limited selection of pull-up/pull-down
values. The Model 5205 can serve as the
Leader clock for a Dante network but in
most cases it will be congured to “sync”
to another device.
The Model 5205 has a default Dante device
name of ST-M5205 and a unique sux. The
sux identies the specic Model 5205
that is being congured. The sux’s actual
alpha and numeric characters relate to the
MAC address of the UltimoX2 integrated
circuit. The two Dante transmitter (output)
channels have default names of Ch1 and
Ch2. Using Dante Controller the default
device name and channel names can be
revised as appropriate for the specic
application.
Operation
At this point an Ethernet connection with
Power-over-Ethernet (PoE) capability should have been made. The Model
5205’s Dante conguration settings should
have been selected using the Dante Con-
troller software application. At a minimum
the two Dante transmitter (output) channels should have been routed to receiver
(input) channels on an associated device.
Analog signal sources should have been
connected to the two mic/line inputs. Normal Model 5205 operation can now begin.
Initial Operation
The Model 5205 will begin to function as
soon as a Power-over-Ethernet (PoE)
power source is connected. However, full
operation may take 20 seconds or longer
to begin. Upon initial power up the four
status LEDs located on the back panel will
begin to light. The USB LED on the back
panel and the P48, gain, and meter LEDs
on the front panel will light in a test se-
quence. After the LEDs complete their test
sequence one LED associated with the
level meter for channel 1 and one LED associated with the level meter for channel 2
will briey light to indicate the version number of the unit’s application rmware (em-
bedded software). (Understanding how to
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Model 5205
“read” the application rmware number will
be discussed in detail later in this guide.)
Once the entire sequence has completed
and the Dante connection has been established full operation will begin.
Ethernet, PoE, and Dante
Status LEDs
Four status LEDs are located below the
etherCON connector on the Model 5205’s
back panel. The PoE LED will light green
to indicate that Power-over-Ethernet (PoE)
power associated with the connected Ethernet signal is providing operating power
for the Model 5205. The LINK/ACT LED
will light green whenever an active connection to a 100 Mb/s Ethernet network has
been established. It will ash in response
to Ethernet data packet activity. The SYS
and SYNC LEDs display the operating status of the Dante interface and associated
network. The SYS LED will light red upon
Model 5205 power up to indicate that the
Dante interface is not ready. After a short
interval it will light green to indicate that it
is ready to pass data with another Dante
device. The SYNC LED will light red when
the Model 5205 is not synchronized with
a Dante network. It will light solid green
when the Model 5205 is synchronized
with a Dante network and an external
clock source (timing reference) is being
received. It will slowly ash green when
the Model 5205 is part of a Dante network
and is serving as a Leader clock.
How to Identify a Specic
Model 5205
The Dante Controller software application
oers an identify command that can be
used to help locate a specic Model 5205.
When identify is selected for a specic
unit its meter LEDs will light in a unique
pattern. In addition, the SYS and SYNC
LEDs, located directly below the etherCON
connector on the back panel, will slowly
ash green. After a few seconds the LED
identication patterns will cease and nor-
mal Model 5205 level meter and Dante
status LED operation will again take place.
Level Meters
Two 8-step LED meters display the level
of the two Dante transmitter (output) channels. The meter steps are calibrated in
dBFS which indicates the number of dB
below the maximum possible digital
signal level. The maximum level, 0 dBFS,
is the digital audio reference level equal
to “full scale.” Full scale refers to the maximum level possible for a sine wave before
“digital clipping.” In typical applications
a signal with a nominal (normal) level of
–20 dBFS would be desirable. The ve
meter steps that have a threshold of
–20 dBFS and less light with the color
green. The steps that light at –15 and
–10 dBFS are yellow in color and indicate
“hot” or above average signal levels. The
top step lights red in color when a signal
level is –5 dBFS or greater, indicating that
a potentially “clipped” (distorted due to
excessive level) signal is present.
Mic/Line Inputs
Two 3-pin female XLR connectors are
provided to interface analog audio signals
with the Model 5205’s mic/line inputs.
Balanced and unbalanced signals with a
wide range of nominal levels can be successfully connected.
As expected, a signal connected to the
channel 1 mic/line input connector is
associated with Dante transmitter (output)
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channel 1. A signal connected to the channel 2 mic/line input connector is associated
with Dante transmitter (output) channel 2.
Preamplier Gain Selection
Two pushbutton switches are associated
with each mic/line input and are used to
locally adjust the gain of the preampli-
er circuitry. In the 0 dB (line) position the
Model 5205 will provide no (unity) gain.
In this specic case a connected analog
signal that has a level of precisely 0 dBu
will result in a Dante digital audio level of
–20 dBFS. (That corresponds to 20 dB
less than the maximum possible level.)
Five other settings allow a gain of 20 to
60 dB, in 10-dB steps, to be selected.
Select the preamplier gain such that normal input signals will cause the ve green
LEDs to light. Peak signals can cause the
yellow LEDs to light on occasion. But the
yellow LEDs should never be continuously
lit. The red LED should never light, except
possibly in the case of an extreme peak.
The red LED lighting on a regular basis
indicates that the signal level is at risk of
reaching digital 0 (0 dBFS) which is destructive to audio quality.
When changing from the 0 dB to the
20 dB gain setting, or vice-versa, a slight
mechanical click or “tick” sound may be
heard coming from within the Model 5205’s
enclosure. This is caused by the changing
state of an electro-mechanical relay that
places a 20 dB attenuator network in to
or out of the signal path.
Note that due to a technical consideration
the exact gain values are slightly dierent
from the nominal values that are indicated
on the front panel graphics and in most of
the text provided in this guide. As such,
there can be up to a 1-dB dierence, high
or low, at some gain settings. This will typically have no impact on the performance
or use of the Model 5205. But laboratory or
other precision testing of the Model 5205
will show these apparent anomalies. Refer
to the Specications section of this guide
for the exact values.
P48 Phantom Power
To support microphones that require external power, the Model 5205 can provide
a source of P48 phantom power. Press
the P48 button associated with the de-
sired channel to locally change the on/o
status of the P48 phantom power source.
The P48 LED will light when P48 phantom
power is being provided to the associated
mic/line input connector. For maximum
exibility P48 phantom power is available
in all six of the preamplier gain settings,
including 0 dB (line). While P48 phantom
power would not typically be needed in the
0 dB (line) setting it’s still available for special applications. This can include use with
high-sensitivity microphones being used in
environments with high-SPL audio levels.
Remote Conguration of Gain
and P48 Phantom Power
Using the STcontroller application allows
personal computer users to view and
adjust the Model 5205’s preamplier gain
and P48 phantom power on/o status. The
application is available for download on the
Studio Technologies website (studio-tech.
com). Versions are available that support
the Windows and macOS operating systems. Changes made using the application
will be displayed in real-time on the Model
5205’s LED indicators. Changes made to
the preamplier gain and P48 on/o status
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using the Model 5205’s local pushbutton
switches will be displayed in STcontroller.
Button Lock-Out
There may be situations where it’s desir-
able for the preamplier gain and P48
phantom power on/o congurations to
be maintained without the risk that an unauthorized user will press one of the buttons and cause an unwanted change
to be made. A button lock-out function is
included to minimize the chance that this
will occur. Using the function is very simple: simultaneously press and hold both
P48 buttons for approximately 2 seconds
until the two P48 LEDs ash. This will indicate that a change has been made to the
button lock-out status.
When the button lock-out function is enabled the six pushbuttons will no longer
allow any local preamplier gain or P48
conguration changes to be made. During
operation, if the buttons are “locked” pressing a P48, gain up, or gain down button will
cause both P48 LEDs to ash three times
but no change will occur. Only by changing the status of the lock-out function, by
pressing and holding both P48 buttons,
will local changes to the gain or P48 on/o
status be allowed.
Remote monitoring and control using the
STcontroller application will continue to
function normally, even if the buttons are
in their locked-out state.
Conguration Storage
The selected conguration of the preamplier gain and P48 on/o status, as well as
the button lock-out status, will be stored in
nonvolatile memory within the Model 5205.
This allows the settings to be “remem-
bered” during periods when the Model
5205 is not being provided with power.
Upon the unit being powered up the stored
settings will again be used.
USB Interface
A USB type A connector and associated
status LED is located on the back panel
of the Model 5205. This data interface is
used only for updating the unit’s applica-
tion rmware. No audio data of any kind
will pass through it. For details please
refer to the Technical Notes section of this
guide.
Technical Notes
IP Address Assignment
By default the Model 5205’s Ethernet interface will attempt to obtain an IP address
and associated settings using DHCP
(Dynamic Host Conguration Protocol).
If a DHCP server is not detected an IP
address will be assigned using the link-local protocol. This protocol is known in the
Microsoft® world as Automatic Private IP
Addressing (APIPA). It is also sometimes
referred to as auto-IP (PIPPA). Link-local
will assign an IP address in the IPv4 range
of 169.254.0.1 to 169.254.255.254. In this
way multiple Dante-enabled devices can
be connected together and automatically
function, whether or not a DHCP server
is active on the LAN. Even two Dante-enabled devices that are directly interconnected using an RJ45 patch cord will
correctly acquire IP addresses and be able
to communicate and transport audio.
Using the Dante Controller software application the Model 5205’s IP address and
related network parameters can be set for
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a xed (“static”) conguration. While this is
more involved than letting DHCP or link-lo-
cal “do their thing,” if xed addressing is
necessary then that capability is available.
But in this case it’s highly recommended that each unit be physically marked,
e.g., directly using a permanent marker or
“console tape,” with its specic IP address.
If knowledge of a Model 5205’s IP address
has been misplaced there is no reset button or other method to restore the unit to
a default IP setting.
In the unfortunate event that a device’s IP
address is “lost,” the Address Resolution
Protocol (ARP) networking command can
be used to “probe” devices on a network
for this information. For example, in Windows OS the arp –a command can be
used to display a list of LAN information
that includes MAC addresses and cor-
responding IP addresses. The simplest
means of identifying an unknown IP address is to create a “mini” LAN with a personal computer connected directly to the
Model 5205. Then by using the appropriate
ARP command the required “clues” can be
obtained.
For best Dante audio-over-Ethernet performance a network that supports VoIP
QoS capability is recommended. This can
typically be implemented on virtually all
contemporary managed Ethernet switches.
There are even specialized switches that
are optimized for entertainment-associated
applications. Refer to the Audinate website
(audinate.com) for details on optimizing
networks for Dante applications.
Application Firmware Version
Display
As part of the Model 5205’s power-up
sequence the unit’s application rmware
version number is displayed. This is useful
when working with factory personnel on
application support and troubleshooting.
The eight LEDs associated with the channel
1 level meters are used to display the major
version number with a range of 1 through 8.
The eight LEDs associated with the channel 2 level meters are used to display the
minor version number which ranges from 1
through 8. Refer to Figure 2 for a detailed
view of the LEDs and the corresponding
application rmware version numbering
scheme.
Application Firmware Update
Procedure
It’s possible that updated versions of the
application rmware (embedded software)
that is utilized by the Model 5205’s microcontroller (MCU) integrated circuit will be
released to add features or correct issues.
Refer to the Studio Technologies website
for the latest application rmware le. The
unit has the ability to load a revised le into
the MCU’s nonvolatile memory by way of a
USB interface. The Model 5205 implements
a USB host function that directly supports
connection of a USB ash drive. The Model
5205’s MCU updates its rmware using a
le named m5205.bin.
The update process begins by preparing
a USB ash drive. The ash drive doesn’t
have to be empty (blank) but must be in
the personal-computer-standard FAT32
format. Save the new rmware le in the
root folder with a name of m5205.bin.
Studio Technologies will supply the
application rmware le inside a .zip archive le. While the rmware le inside of
the zip le will adhere to the naming con-
vention required by the Model 5205, the
name of the zip le itself will include the
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Mic/Line to Dante Interface
Major Version Number Minor Version Number
O 8 .8 O
O 7 .7 O
O 6 .6 O
O 5 .5 O
O 4 .4 O
O 3 .3 l
l 2 .2 O
O 1 .1 O
Figure 2. Detail of front panel showing the level meter
LEDs that display the application rmware version. In
this example, the application rmware version shown
is 2.3.
Model 5205
le’s version number. For example, a le
named m5205v2r3MCU.zip would indicate
that version 2.3 of the application rmware
(m5205.bin) is contained within this zip
le. Once the USB ash drive is inserted
into the USB interface, the unit powered
o and again powered on, the le will auto-
matically load. The precise steps required
will be highlighted in the next paragraphs
of this guide. After the rmware has been
updated the two LED level meters should
be used to conrm that the desired application rmware version has been successfully
installed.
To install the application rmware le
follow these steps:
1. Remove power from the Model 5205.
This will entail removing the Ethernet
connection that is providing PoE power.
2. Ensure that nothing is present in the
USB port. Then again apply power to
the unit and “read” the currently loaded
application rmware version during the
power-up sequence using the two level
meters. (Refer to the Application Firmware Version Display paragraph earlier
in this section.) Record the version
number for later reference.
3. Remove power from the Model 5205.
4. Insert the prepared USB ash drive into
the Model 5205’s USB port, located on
the back panel of the unit.
5. Apply power to the Model 5205. Power
is provided by Power-over-Ethernet
(PoE) associated with the connected
Ethernet signal.
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Mic/Line to Dante Interface
Model 5205
6. The Model 5205 will run a “boot loader”
program that will immediately load
the new application rmware le
(m5205.bin). This process takes only
a few seconds. During this time pe-
riod the LED located below the USB
connector will ash slowly on and o
green. Once the entire loading process
is over, taking approximately 10 seconds, the Model 5205 will restart using
the newly loaded application rmware.
7. At this time the Model 5205 is function-
ing with the newly loaded application
rmware and the USB ash drive can
be removed. But to be conservative,
remove power rst and then remove
the USB ash drive.
8. Apply power to the Model 5205 and
“read” the application rmware ver-
sion number by observing the two level
meters. Ensure that this is the desired
version and that it’s dierent from that
noted in step 2. Note that upon power
being applied to the Model 5205 if the
USB ash drive doesn’t have the correct le (m5205.bin) in the root folder
no harm will occur. Upon power up the
USB LED will ash on and o rapidly
for a few seconds to indicate this condition and then normal operation using
the unit’s existing application rmware
will begin.
UltimoX2 Firmware Update
As previously discussed in this guide, the
Model 5205 implements Dante connec-
tivity using the 2-input/2-output UltimoX2
integrated circuit from Audinate. The
Dante Controller software application can
be used to determine the version of the
rmware (embedded software) residing in
the UltimoX2 “chip.” This rmware can be
updated by way of the Model 5205’s Ether-
net connection. The latest Dante rmware
le is available on the Studio Technologies
website. The Dante Firmware Update
Manager application is used to install the
rmware. This program is also available
for download on the Studio Technologies
website.
Model 5205 User Guide Issue 4, November 2021
Studio Technologies, Inc. Page 15
Page 16
Mic/Line to Dante Interface
Model 5205
Specications
Network Audio Technology:
Type: Dante Audio-over-Ethernet
Bit Depth: 24
Sample Rates: 44.1, 48, 88.2, and 96 kHz
Number of Dante Transmitter (Output) Channels: 2
Dante Audio Flows: 2 transmitter
Analog to Digital Equivalence: a +4 dBu input with
0 dB gain selected results in a Dante digital output
level of –20 dBFS
Network Interface:
Type: twisted-pair Ethernet with Power-over-
Ethernet (PoE)
Data Rate: 100 Mb/s (10 Mb/s Ethernet not
supported)
Power: Power-over-Ethernet (PoE) per IEEE 802.3af
class 2 (low power, ≤6.49 watts)
General Audio Parameters:
Frequency Response (48 kHz Sample Rate):
+0.0/–0.5 dB, 20 Hz to 22 kHz
Frequency Response (96 kHz Sample Rate):
+0.0/–0.5 dB, 20 Hz to 40 kHz
Distortion (THD+N): 0.001% (–100 dB) at
–1 dBFS, 40 dB gain, 22 kHz bandwidth
Dynamic Range: >114 dB, 0 dB gain, A-weighted
EIN: –123 dBu, 22 kHz bandwidth, 60 dB gain,
150 ohm source resistance
IMD (SMPTE): <0.002%, 60 Hz/7 kHz, 4:1,
–20 dBFS
Mic/Line Inputs: 2
Type: electronically balanced
Input Impedance: 3.7 k ohms
CMRR: >75 dB, 20 Hz to 22 kHz, 40 dB gain
Preamplier Gain, Nominal: 0 (line), 20, 30, 40,
50, and 60 dB
Preamplier Gain, Actual: 0 (line), 19, 31, 40, 49,
and 61 dB
Compatibility: dynamic, ribbon, or phantompowered mics
Phantom Power: P48 per IEC 61938 standard,
+45 volts DC nominal, on/o selectable
Remote Conguration Capability: preamplier
gain and P48 phantom power on/o status (uses
STcontroller application)
Meters: 2
Function: displays level of Dante transmitter
(output) signals
Type: 8-segment LED, modied VU ballistics
Connectors:
Mic/Line Inputs: 3-pin female XLR
Ethernet: Neutrik etherCON RJ45
USB: type A receptacle
Dimensions (Overall):
4.2 inches wide (10.7 cm)
1.7 inches high (4.3 cm)
5.1 inches deep (13.0 cm)
Mounting Option: MBK-02 Mounting Bracket Kit
Weight: 0.8 pounds (0.35 kg)
Specications and information contained in this
guide subject to change without notice.
Issue 4, November 2021 Model 5205 User Guide
Page 16 Studio Technologies, Inc.
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