Model 207 eSports Console - User Guide Issue 3, March 2021 This User Guide is applicable for serial numbers - Studio Technologies, Inc.

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Model 207 eSports Console - User Guide Issue 3, March 2021 This User Guide is applicable for serial numbers - Studio Technologies, Inc.
Model 207 eSports Console

                       User Guide
                      Issue 3, March 2021

       This User Guide is applicable for serial numbers
  M207-00151 and later with application firmware 1.2 and later

Copyright © 2021 by Studio Technologies, Inc., all rights reserved
                        studio-tech.com

                                                                 50648-0321, Issue 3
Model 207 eSports Console - User Guide Issue 3, March 2021 This User Guide is applicable for serial numbers - Studio Technologies, Inc.
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MODEL 207
                                                          eSPORTS CONSOLE

                                        Table of Contents
                            Revision History ........................................................... 4
                            Introduction ................................................................... 5
                            Getting Started ............................................................. 8
                            Operation ...................................................................... 19
                            Technical Notes ............................................................ 23
                            Specifications ............................................................... 27
                            Appendix A ................................................................... 28

Model 207 User Guide                                                                                              Issue 3, March 2021
Studio Technologies, Inc.                                                                                                      Page 3
MODEL 207
                                      eSPORTS CONSOLE

Revision History
Issue 3, March 2021:
• Updated document for clarity and consistency.

Issue 2, June 2019:
• Documents addition of Fixed Ch 3 & 4 Level headphone feature.

Issue 1, May 2019:
• Documents miscellaneous perfomance improvements.

Issue Preliminary 1, April 2019:
• Initial release.

Issue 3, March 2021                                                 Model 207 User Guide
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MODEL 207
                                         eSPORTS CONSOLE

Introduction
The Model 207 eSports Console offers a
unique combination of analog and digital
audio resources specifically intended to
support eSports-related live event, entertain-
ment, and streaming broadcast applications.
The unit is housed in a compact, rugged
steel enclosure that’s intended for table-top
use. Its diminutive size also makes it ideal
for use in space-constrained locations. Blue
LED lights cast a distinctive “underglow”
from the bottom of the enclosure. The Model
207 supports Dante® audio-over-Ethernet
digital media technology with AES67 com-
patibility for integration into contemporary
applications. The unit is extremely simple
to deploy, is “pro” quality throughout, and
provides an intuitive user experience. The
Model 207’s audio quality is excellent, with
low distortion, low noise, and ample head-
room. Careful circuit design and rugged
components ensure long, reliable operation.       Figure 1. Model 207 eSports Console front and
                                                  back views
The Model 207 integrates directly into both
Dante audio-over-Ethernet and standard an-
alog audio environments. With just a Power-       for personnel is very limited. Four Dante
over-Ethernet (PoE) connection, a broadcast       receiver (input) channels supply the user
or “gaming” headset, and a connection to a        with their talent cue (IFB) signals. Should
stereo line-level audio source, a complete        the cue signal be “mix-minus” an integrated
player position can be created.                   sidetone function can provide the user with
                                                  a microphone confidence signal. Two Dante
Model 207 operating features are configured       audio output channels are associated with a
using the STcontroller software application.      connected headset’s microphone, one des-
An extensive set of parameters allows the         ignated as main and the other as talkback.
unit’s functions to be tailored to meet the       Two additional Dante outputs have signal
needs of many applications. STcontroller is       sources derived from the Model 207’s stereo
a fast and simple means of confirming and         line input. These two audio channels, typi-
revising the unit’s operating parameters.         cally provided by a personal computer, can
                                                  also be routed to the headphone output. The
Applications                                      four Dante transmitter (output) channels are
The Model 207 on its own can provide an           routed via an associated local area network
“all-Dante” solution for one game player          (LAN) to inputs on Dante-compatible de-
location. The unit’s small size makes it ideal    vices. Two pushbutton switches, main and
for live applications where physical space        talkback, provide the user with direct control

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                                         eSPORTS CONSOLE

over audio routing. The audio switching is        level potentiometers. This makes it easy to
performed in the digital domain and is virtu-     control the status of the main and talkback
ally “click-free.” Three rotary controls allow    outputs as well as adjusting the signals that
the user to create their own headphone            are sent to the headphone output channels.
audio mix.
                                                  Ethernet Data and PoE
Setup and Operation                               The Model 207 connects to a local area net-
Set up, configuration, and operation of the       work (LAN) by way of a standard 100 Mb/s
Model 207 is simple. An etherCON® RJ45            twisted-pair Ethernet interface. The physical
jack is used to interconnect with a standard      100BASE-TX interconnection is made by way
twisted-pair Ethernet port associated with a      of a Neutrik® etherCON RJ45 connector.
PoE-enabled network switch. This connec-          While compatible with standard RJ45 plugs,
tion provides both power and bidirectional        etherCON allows a ruggedized and locking
digital audio.                                    interconnection for harsh or high-reliability
                                                  environments.
A dual-channel (dual-ear or “stereo”) broad-
cast headset can be directly connected to         The Model 207’s operating power is provided
the unit’s 5-pin female XLR connector. In         by way of the Ethernet interface using the
addition, a 3.5 mm 4-conductor TRRS jack          802.3af Power-over-Ethernet (PoE) standard.
allows direct connection of gaming-style          This allows fast and efficient interconnection
headsets. For each headset type, the micro-       with the associated data network. To support
phone input is compatible with dynamic or         PoE power management, the Model 207’s
electret microphones. The integrated low-         PoE interface enumerates (reports) to the
voltage DC source provides power support          power sourcing equipment (PSE) that it’s a
for electret microphones.                         class 2 (low power) device. If a PoE-enabled
                                                  Ethernet port can’t be provided by the associ-
A 3.5 mm 3-conductor TRS jack supports
                                                  ated Ethernet switch a low-cost PoE midspan
connection of a computer’s analog line-level
                                                  power injector can be utilized.
audio output. The Model 207 takes this
computer audio source and makes it part of
                                                  Dante Audio-over-Ethernet
the Dante audio network by first converting
                                                  Audio data is sent to and received from
it to digital and then outputting it by way of
                                                  the Model 207 using the Dante audio-over-
two Dante transmitter (output) channels. The
                                                  Ethernet media networking technology. As
audio from the stereo line input can also be
                                                  a Dante-compliant device, the Model 207’s
configured to be part of the sidetone confir-
                                                  two Dante transmitter (output) channels and
mation signal that is sent to the headphone
                                                  four Dante receiver (input) channels can be
output.
                                                  assigned (routed or “subscribed”) to other
The STcontroller software application is used     devices using the Dante Controller software
to configure the wide range of Model 207          application. The Dante transmitter (output)
operating parameters. This allows the unit’s      and receiver (input) channels are limited to
performance to be optimized to meet the           supporting four Dante flows, two in each
needs of specific applications.                   direction. The digital audio’s bit depth is up
                                                  to 24 with a sampling rate of 44.1 or 48 kHz.
The user is presented with two pushbutton
                                                  Two bi-color LEDs provide an indication of
switches and three push-in/push-out rotary
                                                  the Dante connection status. An additional
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                                         eSPORTS CONSOLE

LED displays the status of the associated          Configuration Flexibility
Ethernet connection.                               The Model 207 can be configured to meet
The Model 207 is compatible with the AES67         the needs of specific applications and user
interoperability standard. In addition, the unit   preferences. All configuration choices are
is compatible with the Dante Domain Man-           performed using the STcontroller software
ager™ (DDM) software application.                  application. Selectable parameters include
                                                   microphone preamplifier gain, microphone
Audio Quality                                      power source on/off, button operation, head-
The Model 207’s audio performance is               phone source routing and control operation,
completely “pro.” A low-noise, wide dynamic-       sidetone operation, and overall unit opera-
range microphone preamplifier and asso-            tion. In addition, the intensity of the LED
ciated voltage-controlled-amplifier (VCA)          indicators can be configured as desired.
dynamics controller (compressor) ensures           The gain of the microphone preamplifier can
the headset’s microphone audio quality is          be selected from among five choices. This
preserved while minimizing the chance of           allows the Model 207 to match the output
signal overload. The output of the micro-          sensitivity of a range of headset-associated
phone preamp and compressor is routed to           microphones. A source of low-voltage DC
an analog-to-digital conversion (ADC) sec-         power can be enabled if required to support
tion that supports sampling rates of 44.1          electret microphones.
and 48 kHz with a bit depth of up to 24.           The main and talkback pushbutton switches
The audio signal, now in the digital domain,       can be individually configured. The main but-
routes through a 32-bit microprocessor and         ton can be selected to operate from among
on to the Dante interface section where it is      six modes while the talkback button can
packetized and prepared for transport over         be selected from among four. These choices
Ethernet.                                          allow the Model 207’s operation to be tai-
Audio signals arrive via the four Dante            lored to meet the specific needs of many
receiver (input) channels and pass into the        applications. As an example, for an on-air
Model 207’s microprocessor. The supported          application the main button might need to be
sampling rates are 44.1 and 48 kHz with a          configured to provide a push to mute (cough)
bit depth of up to 24. Channel routing, head-      function. The microphone signal routed to
phone level control, and sidetone creation         the Dante main output channel would re-
are performed within the digital domain. This      main active unless a game player needs to
provides flexibility, allowing precise control     momentarily disable it. The talkback button
and keeping the three level potentiometers         would most likely be set to the push to talk
from having to directly handle analog audio        mode as its use would be intermittent.
signals. The audio channels destined for           The audio sources and the way in which
the phones outputs are sent to a high-             they are assigned to the headphone output
performance digital-to-analog converter            channels and front-panel rotary controls can
and then on to robust driver circuitry. High       be configured from among many choices.
signal levels can be provided to the connect-      Each choice is unique, allowing almost any
ed headset or earbuds with microphone.             required headphone monitoring situation to
                                                   be implemented.

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                                          eSPORTS CONSOLE

There’s even the ability to route two Dante        circuit can be updated via the Ethernet
receiver (input) channels directly to the          connection, helping to ensure that its capa-
headphone output channels. In this configu-        bilities remain up to date.
ration the level of the audio signals sent to
the headphone output will not be impacted
by the rotary controls. This capability is
included specifically to support gaming ap-
                                                   Getting Started
plications where a “masking” audio signal          What’s Included
needs to be sent to each player’s headset.         Included in the shipping carton are a Model
The integrated sidetone function allows            207 Announcer’s Console and a printed
audio associated with the microphone input         copy of this guide. As a device that is Power-
to be sent to the headphone output. This is        over-Ethernet (PoE) powered, no external
important as different applications may pro-       power source is provided. In most applica-
vide either a “full mix” or a “mix-minus” talent   tions an Ethernet switch with PoE capability
cue signal. If a full mix cue signal is provided   will be utilized.
then sidetone audio will not be needed and
the function can be disabled. In the case          Connections
where a mix-minus signal is present, provid-       In this section signal interconnections will be
ing the user with sidetone can be an impor-        made using the four connectors located on
tant means of confirming the signal that’s         the back of the Model 207’s enclosure. An
coming from the connected microphone.              Ethernet data connection with Power-over-
                                                   Ethernet (PoE) capability will be made using
Three system modes select the overall way          either a standard RJ45 patch cable or an
in which the Model 207 functions. The on-          etherCON protected RJ45 plug. A dual-
air mode is optimized for applications where       channel or single-channel (dual- or single-
strict separation between on-air and produc-       ear) headset will be connected using a
tion audio channels is required. Other ap-         cable-mounted 5-pin male XLR connector.
plications will benefit from the two available     Alternately, a headset with a 3.5 mm 4-
production modes.                                  conductor TRRS plug can be used. (The
                                                   headset’s plug needs to follow the CTIA™/
Future Capabilities and                            AHJ configuration standard.) A source of
Firmware Updating                                  stereo unbalanced analog audio may be
The Model 207 was designed so that its ca-         connected to the Model 207 using a 3.5 mm
pabilities and performance can be enhanced         3-conductor TRS plug.
in the future. A USB connector, located on
                                                   Ethernet Connection with PoE
the unit’s main circuit board (underneath the
                                                   A 100BASE-TX Ethernet connection that
unit’s cover), allows the application firmware
                                                   supports Power-over-Ethernet (PoE) is
(embedded software) to be updated using a
                                                   required for Model 207 operation. This one
USB flash drive.
                                                   connection will provide both the Ethernet
The Model 207 uses the Audinate Ultimo™            data interface and power for the Model 207’s
integrated circuit to implement the Dante          circuitry. A 10BASE-T connection is not suf-
interface. The firmware in this integrated         ficient and a 1000BASE-T (GigE) connection
                                                   is not supported unless it can automatically

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                                         eSPORTS CONSOLE

 “fall back” to 100BASE-TX operation. The
 Model 207 supports Ethernet switch power
 management, enumerating 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 of the
 Model 207’s enclosure. This allows connec-
 tion by way of a cable-mounted etherCON
 connector or a standard RJ45 plug. The
 Model 207’s Ethernet interface supports           Figure 2. Headset A connection pinout chart
 auto MDI/MDI-X so that a crossover cable
                                                   To allow users of stereo (dual-earpiece or
 is not required.
                                                   “double-muff”) headsets to hear a monaural
 Headset Connections                               version of the two headphone output channels
 The Model 207 allows two different types of       does not require special wiring of the 5-pin
 headsets to be connected. A 5-pin female          male XLR mating connector. The headset’s
 XLR connector, located on the Model 207’s         left headphone channel should always be
 back panel, allows connection of a standard       wired to pin 4 and the right headphone chan-
 broadcast- or intercom-style communica-           nel to pin 5. Configuration choices, discussed
 tions headset. A 3.5 mm 4-conductor TRRS          later in this guide, can then be used to create
 jack, also located on the back panel, allows      the desired monaural output. It’s important
 a computer gaming headset to be directly          not to connect together (short) pins 4 and 5
 connected. The Model 207’s two headset            of the headset’s connector as damage to the
 connectors are electrically wired in parallel.    Model 207’s output circuitry could result.
 As such, only one type of headset should          A monaural (single-earpiece or “single-muff”)
 be connected at one time.                         headset should be wired such that its head-
 Headset A                                         phone is wired only to pin 4; pin 5 should
                                                   be remain unused. Configuration choices,
 The Model 207 provides a 5-pin female
                                                   discussed later in this guide, can be used to
 XLR connector that interfaces with the
                                                   create a monaural output.
 microphone and headphone connections
 of a single- or dual-ear intercom or broad-       It’s possible that some Beyerdynamic head-
 cast-style headset. The connector is labeled      set interconnecting cable assemblies termi-
 Headset A. Refer to Figure 2 for connection       nate the earpiece’s left and right connections
 details. The microphone input connections         opposite from what the Model 207 and other
 are compatible with most unbalanced dy-           broadcast equipment require. These cables
 namic or electret (low-voltage DC-powered)        may terminate the left earpiece to pin 5 of
 microphones. A balanced dynamic micro-            the 5-pin male XLR connector and the right
 phone should, in most cases, also function        earpiece to pin 4. If this condition is present
 correctly if its signal – (low) is connected to   it will require reversing or “flipping” the two
 Model 207’s mic in –/shield connection. No        wires in a headset’s connector such that the
 support is provided for microphones that          left earpiece connects to pin 4 and the right
 require P12 or P48 phantom power.                 earpiece to pin 5.

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                                         eSPORTS CONSOLE

If a separate microphone and pair of head-        Stereo Line Input
phones need to be connected an adapter            The Model 207 provides a 3.5 mm 3-conduc-
cable assembly should be fabricated. It would     tor TRS jack for interfacing with a source
consist of a 5-pin male XLR connector wired       of unbalanced stereo line-level audio. The
to both a 3-pin female XLR connector for the      nominal level of the unbalanced source is
microphone and a ¼-inch or 3.5 mm TRS             expected to be in the area of –15 dBV. An
jack for the headphones. In this scenario the     STcontroller configuration setting allows the
microphone would in most cases be a dy-           stereo line input to be compatible with signals
namic type as the Model 207 provides only         that have a fairly wide nominal level range.
low-voltage DC electret power. Phantom-
powered (P12 or P48) microphones would            Located on the back panel, the jack is
not be compatible. Most hand-held or “stick”      labeled Stereo Line In and is specifically pro-
microphones are dynamic and should func-          vided to allow direct interconnection with
tion correctly.                                   a personal computer’s analog line output.
                                                  (This is typically the light-green-colored jack
Headset B                                         on a personal computer.) Using a standard
The Model 207 also allows direct connec-          patch cord with 3.5 mm 3-conductor TRS
tion of gaming headsets that are ubiquitous       plugs on each end will make interconnec-
in the personal computer world. The 3.5 mm        tion very simple. As is standard for personal
4-conductor TRRS jack, labeled Headset B,         computers and other personal electronics the
is compatible with the CTIA™/AHJ configu-         Model 207 implements the jack such that the
ration standard which has the headphone           left channel is on the tip lead, the right chan-
left channel on the tip connection, the head-     nel is on the ring lead, and common/shield
phone right channel on the ring 1 connection,     is on the sleeve lead. Refer to Figure 4 for a
common/shield on the ring 2 connection,           detailed view of the appropriate mating plug.
and the microphone on the sleeve con-
nection. Compatible headsets are readily
available, typically described as personal
computer or gaming headsets. The micro-
phones used in these headsets are electret
type which require a low-voltage DC source        Figure 4. Stereo line in (TRS) connection pinout
for operation. The Model 207 is able to pro-      chart
vide this power and requires only that the ap-
propriate setting in STcontroller be selected.    Dante Configuration
Refer to Figure 3 for a detailed description of   For audio to pass to and from the Model 207
the compatible TRRS plug.                         requires that several Dante-related param-
                                                  eters be configured. These configuration
                                                  settings will be stored in non-volatile memory
                                                  within the Model 207’s circuitry. Configuration
                                                  will typically be done with the Dante Control-
                                                  ler software application which is available for
                                                  download free of charge at audinate.com.
Figure 3. Headset B (TRRS) connection pinout      Versions of Dante Controller are available
chart                                             to support Windows® and OS X® operating

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systems. The Model 207 uses the Ultimo             The Model 207 supports audio sample rates
4-input/4-output integrated circuit to imple-      of 44.1 and 48 kHz with no pull-up/pull-down
ment the Dante functionality. The Model 207        values available. In most cases it’s anticipated
is compatible with the Dante Domain Manag-         that the default rate of 48 KHz will be appro-
er (DDM) software application. It can also be      priate. While technically the Model 207 can
configured for AES67 operation. This requires      serve as a clock master for a Dante network
a setting to be enabled within the Device Info     (as can all Dante-enabled devices) in virtually
section of the Dante Controller application.       all cases the unit will be configured to receive
                                                   “sync” from another device.
The four Dante transmitter (output) channels
associated with the Model 207’s Dante inter-       The Model 207 has a default Dante device
face must be assigned to the desired receiver      name of ST-M207- along with a unique suffix.
channels on associated equipment. This will        The suffix identifies the specific Model 207
route the Model 207’s four output audio chan-      that is being configured. The suffix’s actual
nels to the device (or devices) that will be       alpha and/or numeric characters relate to the
“listening” to them. Within Dante Controller a     MAC address of the unit’s Ultimo integrated
“subscription” is the term used for routing a      circuit. The four Dante transmitter (output)
transmitter flow (a group of output channels)      audio channels have default names of Main,
to a receiver flow (a group of input channels).    Talkback, Line In L, and Line In R. The
                                                   four Dante receiver (input) audio channels
The number of transmitter flows associated
                                                   have default names of Headphone Ch1,
with an Ultimo integrated circuit and, as such
                                                   Headphone Ch2, Headphone Ch3, and
the Model 207, is limited to two. These can
                                                   Headphone Ch4. Using Dante Controller
either be unicast, multicast, or a combination
                                                   the default device name and channel names
of the two. (Note that in the AES67 mode the
                                                   can be revised as appropriate for the specific
four transmitter (output) channels will func-
                                                   application.
tion in multicast; unicast is not supported.) If
the Model 207’s transmitter channels need to
                                                   Model 207 Configuration
be routed to more than two flows it’s possible
                                                   The STcontroller software application is used
that an intermediary device with enhanced
                                                   to configure the way in which the Model 207
flow capability, such as the Studio Technolo-
                                                   functions. No DIP switch settings or other
gies’ Model 5422A Dante Intercom Audio
                                                   local actions are used to configure the unit.
Engine, can be used to “repeat” the signals.
                                                   This makes it imperative that STcontroller
(Use the Model 5422A’s pass-thru group con-
                                                   be available for convenient use in a personal
figuration mode to provide this resource.)
                                                   computer that’s connected to the related LAN.
The desired audio sources need to be routed
to the receiver (input) channels associated        Installing STcontroller
with the Model 207’s Dante audio inputs.           STcontroller is available free of charge on
The unit provides four audio input channels        the Studio Technologies’ website. If required,
although the exact number utilized will            download and install STcontroller onto a
depend on the specific application. Follow-        designated personal computer. This personal
ing the unit’s headphone source and routing        computer must be on the same local area
configuration selections these audio signals       network (LAN) and subnet as the Model 207
will be sent to the Model 207’s 2-channel          unit or units that are to be configured. Immedi-
headphone output.                                  ately after starting STcontroller the application

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will locate the devices that it can control. The   male XLR connectors will not require micro-
one or more Model 207 units to be config-          phone power. The on/off status of the micro-
ured will appear in the device list. Use the       phone power is displayed by way of an LED,
Identify command to allow easy recognition         red in color, that is located on the Model
of a specific Model 207 unit. Double-clicking      207’s back panel adjacent to the Headset A
on a device name will cause the associated         connector.
configuration menu to appear. Review the
                                                   Note that the Model 207 cannot supply P12
current configuration and make any changes
                                                   or P48 phantom power that may be required
that are desired.
                                                   for balanced condenser (capacitor) micro-
Parameters                                         phones. In almost all cases this should not
The configurable functions include:                pose an issue as phantom-powered micro-
                                                   phones are essentially never associated
• Microphone input – electret power on/off
                                                   with headsets that are used for Model 207
• Microphone input – gain                          applications.
• Stereo line input – gain                         Microphone Input – Gain
• Headphone output routing, controls, and          Choices are 24 dB, 30 dB, 36 dB, 42 dB,
  sidetone                                         and 48 dB.
• Button Operation – main and talkback             The gain of the Model 207’s microphone
• System – operating mode and LED light            preamplifier can be selected from among
  intensity                                        five choices. The compressor active LED,
                                                   located adjacent to the headset A connector,
Changes made using STcontroller will be            can act as a guide when setting the preamp
immediately reflected in the unit’s operation;     gain. When a voice signal at a normal level
no Model 207 “reboot” is required. Each time       is present on the connected headset (A
a change is made the main and talkback but-        or B) the compressor active LED should
tons on the front panel will both flash orange     light intermittently. If, for example, it rarely
in a distinctive pattern to indicate that a com-   lights and the gain is set to 36 dB, it might
mand from STcontroller has been received.          be a good idea to change the setting to
Microphone Input – Electret Power                  42 dB. If the compressor LED is lit fully
                                                   during normal talking and the gain is set for
Choices are Enabled and Disabled.
                                                   42 or 48 dB, a change to one of the lower
Enable the Electret Power check box if the         values might be warranted. There’s no “hard
connected headset has an electret micro-           and fast” rule about which gain setting is
phone which requires a source of low-              appropriate. But unless otherwise indicated,
voltage DC power for operation. In virtually       42 dB is typically a good initial choice for a
all cases a gaming or computer headset that        headset that uses a dynamic microphone
uses a 3.5 mm TRRS plug will require mi-           and 30 dB for a headset that includes an
crophone power. If the associated headset          electret microphone.
has a dynamic (non-powered) microphone
do not the Electret Power check box. Most
broadcast headsets that terminate on 5-pin

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Stereo Line Input – Gain                            Headphone Output – Routing
Choices are –3 dB, 0 dB, 3 dB, 6 dB, 9 dB,          Choices are Dual-Channel Stereo, Dual-
and 12 dB.                                          Channel Mono, and Single-Channel Mono.
The gain of the circuitry associated with           STcontroller allows selection from among
the stereo line input can be selected from          three headphone output routing modes. Each
among six choices. Two bi-color LEDs,               mode is distinct and careful selection will help
located adjacent to the stereo line input’s         optimize the Model 207’s operation.
3.5 mm connector, can serve as a guide when         Dual-Channel Stereo
selecting the gain value. The LEDs serve in
                                                    The Dual-Channel Stereo mode is provided
a signal present and peak role, lighting green
                                                    for applications where two independent audio
for signals that are in the normal audio range
                                                    sources need to be routed to the two head-
and red when they approach or reach audio
                                                    phone output channels. Dante audio input
“clipping.”
                                                    channel 1 will be routed to the left headphone
The first step to achieving optimal audio per-      output channel and Dante audio input chan-
formance is to confirm and, if required, revise     nel 2 will be routed to the right headphone
the level of the source. This will typically be     output channel. Note that in this mode the
the unbalanced stereo analog audio output of        sidetone audio signal will be routed to both
a personal computer. A software configuration       the left and right headphone output channels.
setting associated with the personal comput-
                                                    Dual-Channel Mono
er’s operating system should allow adjust-
ment of the output level, typically over a range    The Dual-Channel Mono mode can be useful
of 0 (mute) to 100 (full level). While there is     in applications where the same audio signals
no standard for what these settings represent,      need to be provided to the user on both the
selecting 100 can be a good starting point.         left and right headphone output channels.
Tests that Studio Technologies performed on         In this mode Dante audio inputs 1 and 2 are
multiple personal computers never found that        combined (mixed together or “summed”) and
a full level setting had resulted in audio degra-   routed to both the left and right headphone
dation (“clipping”). However, if issues do arise    output channels. Note that in this mode the
revise the output level downward, first trying      sidetone audio signal will be routed to both
90, then 80, then 70, etcetera, until good au-      the left and right headphone output channels.
dio performance is obtained.                        Single-Channel Mono
Once the source level has been established          The Single-Channel Mono mode is specifi-
the stereo line input value on STcontroller         cally provided for applications where a
can be selected. Use the signal present/peak        2-conductor ¼-inch plug is being used with
(SIG/PK) LEDs on the Model 207 as a ref-            the connected headphones, headset, or a
erence when adjusting the gain value. The           broadcast-style earpiece. In this mode Dante
LEDs, one for each input channel, should light      audio inputs 1 and 2 are combined to monau-
green when signals in an acceptable range           ral and routed to only the left channel of the
are present. The LEDs should never light red        headphone output; no audio signal is routed
as this indicates imminent or active distortion     to the right channel of the headphone output.
of the audio signal.                                Note that in this mode the sidetone audio sig-
                                                    nal will be routed to only the left headphone
                                                    output channel.

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Headphone Output – Controls (A/B/C)                 Ch 1 & 2 Level / Ch 3 & 4 Level / Line In Level
STcontroller allows selection from among            • Dante input channel 1 is routed to the left
nine headphone controls modes. Each mode              channel of the headphone output. Dante
is distinct and careful selection will help opti-     input channel 2 is routed to the right chan-
mize the Model 207’s operation for a range of         nel of the headphone output. Pot A adjusts
applications. The listen audio sources include        the level of both Dante input channels 1
the four Dante receiver (input) channels,             and 2.
the two channels associated with the stereo         • Dante input channel 3 is routed to the left
line input, and audio signal coming from the          channel of the headphone output. Dante
microphone preamplifier/compressor which              input channel 4 is routed to the right chan-
provides sidetone. There are three rotary             nel of the headphone output. Pot B adjusts
level controls across on the bottom front of          the level of both Dante input channels 3
the enclosure. Starting from the left side and        and 4.
moving to the right side, the controls (poten-
tiometers or “pots”) are referred to as Pot A,      • The left channel of the stereo line input
Pot B, and Pot C.                                     is routed to the left channel of the head-
                                                      phone output. The right channel of the
Ch 1 & 2 Level / Line In Level / Sidetone Level       stereo line input is routed to the right chan-
• Dante input channel 1 is routed to the left         nel of the headphone output. Pot C adjusts
  channel of the headphone output. Dante in-          the level of both of the stereo line input
  put channel 2 is routed to the right channel        channels.
  of the headphone output. Pot A adjusts the
                                                    Ch 1 Level / Ch 2 Level / Line In Level
  level of both Dante input channels 1 and 2.
                                                    • Dante input channel 1 is routed to the left
• The left channel of the stereo line input is        channel of the headphone output. Pot A
  routed to the left channel of the headphone         adjusts the level of Dante input channel 1.
  output. The right channel of the stereo line
  input is routed to the right channel of the       • Dante input channel 2 is routed to the right
  headphone output. Pot B adjusts the level           channel of the headphone output. Pot B
  of both of the stereo line input channels.          adjusts the level of Dante input channel 2.

• Pot C adjusts the sidetone level.                 • The left channel of the stereo line input
                                                      is routed to the left channel of the head-
Ch 1 & 2 Level / Ch 3 & 4 Level / Sidetone            phone output. The right channel of the
Level
                                                      stereo line input is routed to the right
• Dante input channel 1 is routed to the left         channel of the headphone output. Pot C
  channel of the headphone output. Dante in-          adjusts the level of both of the stereo line
  put channel 2 is routed to the right channel        input channels.
  of the headphone output. Pot A adjusts the
                                                    Ch 1 Level / Ch 2 Level / Ch 3 & 4 Level
  level of both Dante input channels 1 and 2.
                                                    • Dante input channel 1 is routed to the left
• Dante input channel 3 is routed to the left         channel of the headphone output. Pot A
  channel of the headphone output. Dante in-          adjusts the level of Dante input channel 1.
  put channel 4 is routed to the right channel
  of the headphone output. Pot B adjusts the        • Dante input channel 2 is routed to the right
  level of both Dante input channels 3 and 4.         channel of the headphone output. Pot B
                                                      adjusts the level of Dante input channel 2.
• Pot C adjusts the sidetone level.
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• Dante input channel 3 is routed to the left       • Pot B adjusts the relative level of Dante
  channel of the headphone output. Dante              input channel 1 versus Dante input chan-
  input channel 4 is routed to the right chan-        nel 2 as they are routed to the headphone
  nel of the headphone output. Pot C adjusts          output left and right channels, respectively.
  the level of both Dante input channels 3          • Dante input channel 3 is routed to the left
  and 4.                                              channel of the headphone output. Dante
Ch 1 Level / Ch 2 Level / Sidetone Level              input channel 4 is routed to the right chan-
• Dante input channel 1 is routed to the left         nel of the headphone output. Pot C adjusts
  channel of the headphone output. Pot A              the level of both Dante input channels 3
  adjusts the level of Dante input channel 1.         and 4.
• Dante input channel 2 is routed to the right      Ch 1 & 2 Level / Balance / Sidetone Level
  channel of the headphone output. Pot B            • Dante input channel 1 is routed to the left
  adjusts the level of Dante input channel 2.         channel of the headphone output. Dante
• Pot C adjusts the sidetone level.                   input channel 2 is routed to the right chan-
                                                      nel of the headphone output channel.
Ch 1 & 2 Level / Balance / Line In Level              Pot A adjusts the level of both Dante
• Dante input channel 1 is routed to the left         input channels 1 and 2.
  channel of the headphone output. Dante
                                                    • Pot B adjusts the relative level of Dante
  input channel 2 is routed to the right chan-
                                                      input channel 1 versus Dante input chan-
  nel of the headphone output. Pot A adjusts
                                                      nel 2 as they are routed to the headphone
  the level of both Dante input channels 1
                                                      output left and right channels respectfully.
  and 2.
                                                    • Pot C adjusts the sidetone level.
• Pot B adjusts the relative level of Dante
  input channel 1 versus Dante input chan-          Headphone Output – Fixed Ch 3 & 4 Level
  nel 2 as they are routed to the headphone         Choices are Off, Low, Medium Low,
  output left and right channels, respectively.     Medium, Medium High, and High.
• The left channel of the stereo line input         When Dante receiver (input) channels 3
  is routed to the left channel of the head-        and 4 have not been assigned to the rotary
  phone output. The right channel of the            controls they can be sent to the headphone
  stereo line input is routed to the right chan-    output channels at a fixed level. Select from
  nel of the headphone output. Pot C adjusts        among the five level choices to achieve the
  the level of both of the stereo line input        desired level in the headphone outputs.
  channels.                                         Select Off if inputs 3 and 4 are not to be
Ch 1 & 2 Level / Balance / Ch 3 & 4 Level           utilized. The ability to send input channels
• Dante input channel 1 is routed to the left       3 and 4 to the headphone outputs at a fixed
  channel of the headphone output. Dante            level is provided specifically for gaming ap-
  input channel 2 is routed to the right chan-      plications where a masking signal needs to
  nel of the headphone output. Pot A adjusts        be sent to Model 207 users.
  the level of both Dante input channels 1
  and 2.

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Headphone Output – Sidetone Mode                  and the Off configuration should be selected.
Choices are Main Active, Talkback Active,         (The user will hear themselves by way of
and Main or Talkback Active.                      audio signals being routed to the Dante
                                                  input channels.) But if “mix-minus” audio
This configuration parameter specifies when       is being supplied to the Model 207 then se-
the sidetone function will be active. Sidetone    lecting a suitable fixed sidetone level can be
is audio associated with the output of the        an important means of establishing user
microphone preamplifier and compressor that       confidence.
is sent to the headphone output channels.
This can be important, allowing the user to       Button Operation – Main
“hear” themselves for performance confirma-       Choices are Push to Mute, Push to Talk,
tion and comfort. Three sidetone modes are        Latching, Push to Talk/Tap to Latch, Push
available:                                        to Mute/Tap to Latch, and Always On.
Main Active                                       STcontroller allows the configuration of the
In this mode the sidetone function will be        main button to be selected.
active whenever the main output function
                                                  Push to Mute
is active and microphone input audio is
present on the Dante main output channel.         If this mode is selected the main button func-
                                                  tion will normally be active and its green LED
Talkback Active                                   lit. The microphone audio signal associated
In this mode the sidetone function will be        with the connected headset will be routed to
active whenever the talkback function is ac-      the Dante main output channel. Whenever
tive and microphone input audio is present        the main button is pressed the audio signal
on the Dante talkback output channel.             will mute on the Dante main output channel
Main or Talkback Active
                                                  and the button’s LED will change from green
                                                  to red.
In this mode the sidetone function will be
active whenever the main or talkback func-        Push to Talk
tions are active. In this case audio signal       If this mode is selected the main button
associated with the microphone input will         function will normally be inactive and the
be present on either or both the Dante main       button’s red LED will be lit. The microphone
and talkback output channels.                     audio signal associated with the connected
                                                  headset will not be routed to the Dante main
Headphone Output – Fixed Sidetone Level
                                                  output channel. Whenever the main but-
Choices are Off, Low, Medium Low, Medium,         ton is pressed the audio signal will become
Medium High, and High.                            active on the Dante output channel and the
When sidetone has not been assigned to one        button’s green LED will light.
of the rotary controls the fixed sidetone func-   Latching
tion is active. The user will be presented with   If this mode is selected the main button’s
sidetone audio at a fixed audio level estab-      function will alternate between its active and
lished by this parameter. Making a specific       inactive states whenever the main button is
selection will depend on the needs of the         pressed. Upon power up the function will be
application. If a “full mix” is being provided    in its inactive state and the red LED associ-
to one of the Model 207’s Dante inputs then       ated with the button will be lit.
locally provided sidetone won’t be needed
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Push to Talk/Tap to Latch                            Button Operation – Talkback
This mode is a combination of the Push to            Choices are Push to Talk, Latching, Push
Talk and Latching modes. It’s similar to the         to Talk/Tap to Latch, and Disabled.
way talk pushbutton switches function on
                                                     The manner in which the talkback button
user stations associated with broadcast or
                                                     functions can be configured.
production intercom systems. If the main
button is pressed and held the main button’s         Push to Talk
function will be active. It will stay active until   If this mode is selected the talkback function
the main button is released. If the main but-        will normally be inactive and the LED associ-
ton is momentarily “tapped” the main button’s        ated with the talkback button will not be lit.
status will change, either from inactive-to-         Whenever the talkback button is pressed the
active or from active-to-inactive. Upon Model        talkback function will become active and its
207 power up the main button will be in its          green LED will light.
inactive state and its red LED will be lit.
                                                     Latching
Push to Mute/Tap to Latch                            If this mode is selected the talkback function
This mode is a combination of the Push to            will alternate between the active and inac-
Mute and Latching modes. Whenever the                tive states whenever the talkback button is
main button is momentarily “tapped” the              pressed. The button’s green LED will be lit
main button’s status will change, either from        whenever the talkback function is active.
active-to-inactive or inactive-to-active. When       Upon power up the talkback function will
the main button function is active its green         be in its inactive state and its button LED
LED will be lit. The audio signal associated         will not be lit.
with the microphone input will be routed to
                                                     Push to Talk/Tap to Latch
the Dante main output channel. Whenever
the main button is pressed and held the audio        This mode is a combination of the Push to
signal will mute on the Dante main output            Talk and Latching modes. It’s similar to the
channel and the button’s LED will change             way talk pushbutton switches function on
from green to red. It will stay in this condition    user stations associated with broadcast or
until the main button is released. Upon Model        production intercom systems. If the talkback
207 power up the main button will be in its          button is pressed and held the talkback func-
inactive state and its red LED will be lit.          tion will be active. It will stay active until the
                                                     talkback button is released. If the talkback
Always On                                            button is momentarily “tapped” the status of
This mode is basically a button inactive             the talkback function will change, either from
function. The audio signal associated with           inactive-to-active or from active-to-inactive.
the microphone audio signal will always be           The button’s green LED will be lit whenever
routed to the Dante main output channel              the talkback function is active. Upon Model
and the button’s green LED will be lit. Press-       207 power up the talkback button will be in
ing the button will not impact operation nor         its inactive state and its LED will not be lit.
cause its associated LED to change color.
                                                     Disabled
                                                     If this mode is selected the talkback function
                                                     will be disabled and the LED associated
                                                     with the talkback button will not be lit. If the

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talkback button is pressed the red LED will        Production With Dim
flash four times as a warning, indicating that     When the mode is configured for Production
the function has been disabled.                    with Dim, the unit will function in a manner
                                                   very similar to the Production mode. The
System – Operating Mode
                                                   difference is that the headphone output
Choices are On-Air, Production, and                channels will dim (reduce in level) when-
Production with Dim.                               ever either or both the main and talkback
The system mode configures the overall             functions are active. This is provided for
manner in which the Model 207 operates.            applications where the headphone outputs
Specifically, it determines how the Dante          are being connected to inputs on an audio
main output channel operates vis-à-vis the         power amplifier or a set of amplified speak-
talkback function. Understanding how each          ers. The dim action can help prevent acous-
specifically impacts Model 207 operation           tical feedback and/or sonic interference
will help ensure the desired operation is ob-      from loudspeakers associated with the
tained and that maximum usability will occur.      Model 207.
On-Air                                             System – Button Backlight Intensity
When selected to the on-air mode, audio            Choices are Low and High.
on the Dante main output channel will typi-
                                                   The caps (top surfaces) of the two pushbut-
cally mute whenever the talkback function is
                                                   ton switches are able to be lit using internal
active. The on-air mode should be selected
                                                   LEDs, one red and one green. When they
for all on-air broadcast applications when
                                                   light and with what color depends on the
it’s imperative that the “on-air” audio signal
                                                   configuration of the Model 207 and the cur-
be muted whenever on-air talent uses the
                                                   rent operating condition. The intensity of
talkback function to communicate with pro-
                                                   these LEDs can be adjusted to perform op-
duction personnel.
                                                   timally in relation to the amount of ambient
Production                                         light present in the Model 207’s location.
When the system mode is set for production,
                                                   System – Underglow Intensity
the audio signal on the Dante main output
channel is never muted in response to talk-        Choices are Off, Low, Medium, and High.
back activity. The main button’s function          Two sets of blue LEDs will illuminate the
operates independently of the talkback             surface directly below the left and right
button’s function. This mode allows the            sides of the Model 207’s enclosure. This
Dante main output channel to be used, for          “underglow” is provided strictly as an “image”
example, as an additional talkback output.         feature but may also help a user locate the
In this way the Dante main output chan-            Model 207 when used in a dark area. Three
nel and the talkback output channel can be         configuration choices allow the intensity of
used separately and not impact each other.         the LEDs to be selected. In addition, the
This also allows both the main and talkback        LEDs can be disabled.
pushbuttons to be used simultaneously.
When selected for the correct application,
the production mode can prove to be very
useful. But it’s not appropriate for on-air use!

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Operation                                        Headset A connector, will flash once in red to
                                                 indicate that it is functioning. The green and
At this point all connections and configura-     red LEDs within the main and talkback push-
tion steps should have been completed and        button switches will also light in a short test
everything should be ready for Model 207         sequence. The lighting of the various LEDs
operation to commence. An Ethernet con-          will indicate that the application firmware
nection with Power-over-Ethernet (PoE)           (embedded software) has started. Once that
capability should have been made. A head-        sequence has completed and the Dante
set or earbuds with microphone should have       connection has been established full opera-
been interfaced using either the Headset         tion will begin. The various LEDs will then
A or Headset B connector. In most cases a        become operational, displaying the status
source of analog audio will have been con-       of their designated functions.
nected to the stereo line input jack.
The Model 207’s Dante configuration set-
                                                 How to Identify a Specific
tings should have been selected using the        Model 207
Dante Controller software application. In this   Functions within the Dante Controller and
way the unit’s four Dante audio output chan-     STcontroller software applications allow a
nels (Dante transmitter channels) and four       specific Model 207 unit to be identified. Each
Dante audio input channels (Dante receiver       application provides an “eyeball” icon that
channels) should have been routed, by way        when clicked will activate the Identify func-
of Dante “subscriptions,” to the receiver and    tion. When Identify is selected it will send a
transmitter channels on associated Dante-        command to a specific Model 207 unit. On
enabled equipment. Using the Studio Tech-        that unit both the main and talkback buttons’
nologies’ STcontroller software application,     red and green LEDs (which together ap-
the Model 207’s configuration should have        pear orange) will “flash” approximately eight
been selected to meet the needs of the           times; the actual on/off status of the buttons
specific application.                            will not change. In addition, the SYS and
                                                 SYNC status LEDs, located directly below
Initial Operation                                the etherCON RJ45 connector on the back
The Model 207 will start to function as soon     panel, will slowly flash green. After a few
as a Power-over-Ethernet (PoE) power             seconds the LED identification pattern will
source is connected. However, it may take        cease and normal Model 207 button LED
20 to 30 seconds for full operation to com-      and Dante status LED operation will resume.
mence. Upon initial power up the three sta-
tus LEDs, located on the back panel below        Ethernet and Dante Status
the RJ45 jack, will begin to light as network    LEDs
and Dante connections are established.           Three status LEDs are located below the
The compressor (COMP) LED, adjacent to           etherCON RJ45 connector on the Model
the Headset A connector, may or may not          207’s back panel. The LINK ACT LED will
flash momentarily. The signal present/peak       light green whenever an active connection
(SIG/PK) LEDs, associated with the stereo        to a 100 Mb/s Ethernet network has been
line input, will light green and red as part     established. It will then flash in response to
of the power-up test sequence. The micro-        all Ethernet data packet activity. The SYS
phone power LED, located adjacent to the

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and SYNC LEDs display the operating sta-           level into an associated microphone. But if the
tus of the Dante interface and its associated      COMP LED lights solid while a user is talk-
network activity. The SYS LED will light red       ing at a normal voice level this will typically
upon Model 207 power up to indicate that           indicate that the microphone preamplifier gain
the Dante interface is not ready. After a short    setting should be reduced. Conversely, if the
interval it will light green to indicate that it   COMP LED almost never lights when nor-
is ready to pass data with another Dante           mal talking is taking place, it’s possible that
device. The SYNC LED will light red when           changing the gain to a higher value would be
the Model 207 is not synchronized with a           beneficial. Note that due to the design of the
Dante network. It will light solid green when      circuitry the compressor active LED will func-
the Model 207 is synchronized with a Dante         tion whether or not the main or talkback func-
network and an external clock source (tim-         tions are active.
ing reference) is being received. It will slowly
flash green when this specific Model 207           Stereo Line Input
is part of a Dante network and is serving          Two LEDs, labeled SIG/PK L and R, are
as the clock master. It’s possible that up to      located adjacent to the 3.5 mm 3-conductor
30 seconds may be required for the SYNC            TRS jack utilized by the stereo line input. The
LED to reach its final state.                      LEDs are dual color, lighting green and red.
                                                   The LEDs will light green as a signal pres-
Microphone Power Status LED                        ent indication and light red to indicate a peak
An LED indicator is located on the back panel      condition. During normal operation the LEDs
adjacent to the microphone input connector.        should light green most of the time with an
It is labeled MIC PWR and will light red when-     occasional flash of red acceptable. If the LEDs
ever the microphone input’s electret power         rarely light green then the input gain configu-
source is active and providing low-voltage DC      ration probably needs to be revised to a great-
power to the microphone connections on the         er value. If the LEDs light red frequently then
Headset A and Headset B connectors.                the input gain configuration should be reduced
                                                   to a lower level.
Compressor Active LED and
Mic Preamp Gain                                    Main and Talkback Buttons
An LED indicator, orange in color, is located      Two pushbutton switches are used to select
on the back panel adjacent to the Headset          how the microphone signal is routed to the two
A connector. It is labeled COMP and dis-           Dante output channels. The button labeled
plays the status of the microphone audio           MAIN controls the audio signal that can be
compressor function. This function controls        sent to the Dante main output channel. How
the dynamic range of the audio signal as-          the button functions will depend on the con-
sociated with the microphone input source.         figuration choice that has been made using
The compressor LED will light whenever the         STcontroller. When the main button’s green
input level from the microphone, along with        LED is lit audio will be present on the Dante
the configured microphone preamplifier gain,       main output channel. When the main button’s
is such that the dynamic range of the signal       red LED is lit audio will not be present on the
is being actively controlled. It’s perfectly ac-   Dante main output channel. One configuration
ceptable for this LED to light intermittently      choice available to the main button, Always
whenever a user is talking at a normal voice       On, forces the button to remain in its on state.

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As such, it will always light green, no matter    user stations associated with broadcast or
if the button is pressed or not.                  production intercom systems. If the main
                                                  pushbutton is pressed and held the audio
The talkback function allows the microphone
                                                  signal associated with the Dante main output
audio signal to be routed to the Dante talk-
                                                  channel will become active and remain active
back output channel. When the talkback
                                                  until the pushbutton is released. If the main
function is active the button’s green LED
                                                  pushbutton is momentarily “tapped” the audio
will be lit. When the talkback function is
                                                  signal will change state. Upon Model 207
not active its button will not be lit. How the
                                                  power up the audio signal will be in its muted
talkback button specifically functions and
                                                  state.
whether it impacts the main button’s func-
tioning depends on the Model 207’s system         Push to Mute/Tap to Latch
configuration.                                    This mode is a combination of the Push to
                                                  Mute and Latching modes. Whenever the
Main Button Modes
                                                  main button is momentarily “tapped” its status
There are six ways that the main pushbut-         will alternate between active and muted.
ton switch can function. The way in which it      When the main button’s function is active
specifically operates depends on its selected     and the main button is pressed and held the
configuration.                                    audio signal on the Dante main output chan-
Push to Mute                                      nel will mute. It will stay in this condition until
If this mode is selected the audio signal         the main button is released. Upon Model 207
associated with the microphone input will         power up the main button will be in its muted
normally be active on the Dante main output       state and its red LED will be lit.
channel. The audio signal will mute when-         Always On
ever the main pushbutton is pressed and           In this state microphone audio will always be
held.                                             sent out the Dante main output channel. The
Push to Talk                                      main button’s green LED will always stay lit to
If this mode is selected the audio signal         indicate that the main output is active. Press-
associated with the Dante main output chan-       ing the main button will not cause any action
nel will normally be muted. The audio signal      to take place.
will become active whenever the main push-        Talkback Button Modes
button is pressed and held.
                                                  Depending on the selected configuration,
Latching                                          the talkback pushbutton will function in one
If this mode is selected the audio signal as-     of four possible modes:
sociated with the Dante main output chan-         Push to Talk
nel will alternate between the active and
                                                  If this mode is selected the audio signal asso-
muted states whenever the main pushbutton
                                                  ciated with the Dante talkback output chan-
is pressed. Upon Model 207 power up the
                                                  nel is normally muted and neither LED in the
audio signal will be in its muted state.
                                                  talkback button will light. The audio signal will
Push to Talk/Tap to Latch                         become active whenever the talkback push-
This mode is a combination of the Push to         button is pressed and held. When talkback is
Talk and Latching actions. It’s similar to the    active the button’s green LED will be lit.
way in which talk pushbuttons function on

Model 207 User Guide                                                                Issue 3, March 2021
Studio Technologies, Inc.                                                                      Page 21
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