Solidyne MX 2400 User manual

3 de Febrero 3254 (C.P. 1429)
Buenos Aires - Argentina
Phone: [phone]
e-mail: in [e-mail]
Fax: [phone]
Web: www.SolidynePRO.com
MX 2400
Portable Codec-mixer
User's manual
Last revision: April-16-2014

SOLIDYNE CODEC–MIXER MX2400 Page 2

Table of ontents
Se tion 1 - Overview.................................................................................................................5
1.1 About this manual........................................................................................................................................................ 5
1.2 What's in the box?....................................................................................................................................................... 5
1.3 Main features................................................................................................................................................................ 5
1.3.1 Connectivity......................................................................................................................................................................................5
1.3.2 Inputs...............................................................................................................................................................................................5
1.3.3 Stereo Monitoring.............................................................................................................................................................................6
1.3.4 Power supply....................................................................................................................................................................................6
1.3.5 48V phantom power ........................................................................................................................................................................6
1.4 Re ommendations for use.......................................................................................................................................... 6
1.5 What is streaming?...................................................................................................................................................... 6
1.6 Make your first digital transmission..........................................................................................................................6
1.6.1 The streaming server.......................................................................................................................................................................7
1.6.2 Streaming general diagram.............................................................................................................................................................7
Se tion 2 - Wiring and basi operation..................................................................................9
2.1 Rear panel..................................................................................................................................................................... 9
2.1.1 Power supply....................................................................................................................................................................................9
2.1.2 Microphone inputs ...........................................................................................................................................................................9
2.1.3 Line level inputs...............................................................................................................................................................................9
2.1.4 Input connections ............................................................................................................................................................................9
2.1.5 Tuner input ......................................................................................................................................................................................9
2.1.6 Program output..............................................................................................................................................................................10
2.1.7 USB (detection)..............................................................................................................................................................................10
2.1.8 Ethernet connection.......................................................................................................................................................................10
2.1.9 Telephone lines..............................................................................................................................................................................10
2.1.10 Headphone outputs......................................................................................................................................................................10
2.2 Front panel................................................................................................................................................................. 11
2.2.1 Power on........................................................................................................................................................................................11
2.2.1.1 Charging the battery......................................................................................................................................................................... 11
2.2.2 Phantom power..............................................................................................................................................................................11
2.2.3 Program Mixer................................................................................................................................................................................11
2.2.4 Headphone Mixer...........................................................................................................................................................................12
2.2.4.1 STUDIO............................................................................................................................................................................................ 12
2.2.4.2 CONSOLE........................................................................................................................................................................................ 12
2.2.4.3 BLUETH............................................................................................................................................................................................ 12
2.2.4.4 TCP/IP.............................................................................................................................................................................................. 12
2.2.5 MONO/STEREO............................................................................................................................................................................12
2.2.6 Talk-back........................................................................................................................................................................................13
2.2.7 Program VU-meter........................................................................................................................................................................13
2.2.7.1 Audio compressor............................................................................................................................................................................. 13
2.2.8 Test tone........................................................................................................................................................................................13
Se tion 3 - Work s hemes.....................................................................................................15
3.1 Streaming using a 3G/4G USB modem....................................................................................................................15
3.1.1 Connection........................................................................................................................................................................................... 15
3.1.2 Settings................................................................................................................................................................................................ 15
3.2 Streaming onne ting MX2400 to a WiFi LAN........................................................................................................16
3.2.1 Connection and setup....................................................................................................................................................................16
3.3 Streaming onne ting MX2400 to LAN with Ethernet able .................................................................................16
Connection and IP setup.........................................................................................................................................................................16
3.4 Transmisión por VoIP................................................................................................................................................ 17
3.4.1 On transmission.............................................................................................................................................................................17
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3.4.2 On the return o studies.................................................................................................................................................................17
3.5 Monitoring on lo ation (when transmitting streaming) ........................................................................................17
3.5.1 Streaming latency .........................................................................................................................................................................17
3.6 Using phone lines (land lines and mobiles phones)..............................................................................................18
3.6.1 General connection diagram to transmit audio using standard telephone lines...........................................................................18
3.6.2 Connecting by land line..................................................................................................................................................................18
3.6.3 Using a Bluetooth cell phone.........................................................................................................................................................18
3.6.3.1 Linking the cell phone with the MX2400........................................................................................................................................... 18
3.6.3.2 Re-connections...........................................................................................................................................................................19
3.6.3.3 Set the volume............................................................................................................................................................................19
3.6.4 Wired cellular: hands ree adapter.................................................................................................................................................19
3.6.5 Receiving at the Studios................................................................................................................................................................19
3.6.6 Using MX2400 with phone lines ...................................................................................................................................................20
3.6.6.1 Using a land line............................................................................................................................................................................... 20
3.6.6.2 Using a cell phone ........................................................................................................................................................................... 20
Se tion 4 - Streaming.............................................................................................................21
4.1 Audio IP settings........................................................................................................................................................ 21
4.2 Setting the audio re eption in Studios...................................................................................................................22
4.3 Advan ed information............................................................................................................................................... 23
4.3.1 IP Audio Module.............................................................................................................................................................................23
4.3.2 Audio..............................................................................................................................................................................................23
4.3.3 Destiny IP.......................................................................................................................................................................................24
Security...................................................................................................................................................................................................24
DEFAULT VALUES ...............................................................................................................................................................................24
REBOOT ................................................................................................................................................................................................24
UPDATE .................................................................................................................................................................................................24
Se tion 5 - Operation at the studios.....................................................................................25
5.1 Re eiving the transmission at the radio station.....................................................................................................25
5.1.1 Incoming signal..............................................................................................................................................................................25
5.1.2 The streaming path........................................................................................................................................................................25
5.1.2.1 I the MX2400 transmit to a streaming Server.................................................................................................................................. 26
5.1.2.2 I the MX2400 transmit directly to the studios.................................................................................................................................. 26
5.1.3 Play Bu er......................................................................................................................................................................................26
5.1.4 Improvement o the telephonic reception......................................................................................................................................27
5.2 Send audio from studio to MX2400.........................................................................................................................27
5.2.1 How to talk in private with the MX2400's journalist.......................................................................................................................27
5.2.2 Private talk-back with Studios using stereo streaming ................................................................................................................28
Se tion 6 - Te hni al spe ifi ations....................................................................................29
Stereo mixer .................................................................................................................................................................... 29
Se ión de odifi a ión streaming................................................................................................................................ 30
SOLIDYNE CODEC–MIXER MX2400 Page 4

Se tion 1 Overview
1.1 About this manual
All rights reserved. All rights reserved. No part of this
publication may be reproduced, stored in a retrieval
system, or transmitted, in any form or by any means,
electronic, mechanical, photocopying, recording or
otherwise, without prior written permission of Solidyne.
All mentioned trademarks belong to their respective
owners and are used for reference only.
The exclamation icon within a triangle that appears
in this manual is intended to alert the user to the
presence of important instructions on the operation
and maintenance (servicing) of the equipment.
The pencil icon that appears in this manual is to
alert the user to the presence of notes, suggestions
and examples about the operation.
1.2 What's in the box?
Inside the box you will ind the ollowing:
•1 Solidyne MX 400 console
•1 Ethernet crossover network cable for programming. 1 meter
length (grey).
•1 standard Ethernet cable to connect to the LAN. meters
length (colour).
•1 RJ45 short-cable, 4” length
•1 USB extension cable
•1 Charger (110/ 0V 50/60 Hz).
•This user's manual.
•Warranty form.
•In option: a bag for transport the console.
Please he k the items when re eive it to verify
that all omponents are okay.
1.3 Main features
There are many ways to connect and use the cedec-
mixer MX2400. Each case will be described in this
manual. Next, a summary o the modes o
transmission and signals that the console can
manage.
1.3.1 Conne tivity
Bluetooth
The MX2400 supports audio transmission and
reception using a cell phone linked via Bluetooth.
When the console transmits streaming; by landline or
mobile phone connected by "hands ree” cable,
Bluetooth can be used to make a second call that
can be on-air (Channel-6 sends the Bluetooth audio
to program).
Bluetooth wireless technology allows to connect
compatible devices without cables. A Bluetooth connection
does not require that the devices be in line of sight, but the
devices must be within meters from each other (3 meters
maximum recommended for safe operation). Connection
can be subject to interference from obstructions such as
walls or other electronic devices.
ETHERNET
MPEG streaming transmission via Internet.
3G / 4G
Transmission o MPEG data over the Internet through
the cellular network, using a 3G/4G USB modem. This
modem is not included because it provides telephone
companies.
USB
VoIP transmission using an external Laptop running
any VoIP so tware (Skype or similar)
LAND LINES
Transmit/receive audio using standard line lines. The
console have a DTMF dialler, so it operates like a
standard telephone connected to a conventional
telephone line.
MOVILE PHONE
Transmit/receive audio over the phone connected to
the console via wired "hands ree". Both (wireless
Bluetooth and wired hands ree) are supported by the
MX2400 or transmission and reception.
OUTPUT TO RF LINK or RECORDING
The MX2400 has balanced mono and unbalanced
stereo outputs (PGM), or connection to microwave
links, or direct recording on location.
1.3.2 INPUTS
The codec-mixer Solidyne MX2400 manages 7
channel simultaneously, and the return rom Studios.
It's inputs are:
•5 microphone inputs (channels 1 to 5),
balanced.
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•3 line inputs, balanced mono (mic
channels 3, 4 and 5 supports line levels,
changing automatically its gain when you
plug a TRS).
•1 stereo unbalanced line input (channel-6).
•1 Bluetooth device. Return rom Bluetooth
cell phone can listen on headphones or
sent to the main program, since Bluetooth
audio is available on channel 6 (when this
line input is unplugged).
•1 Studio input. Used to hear the on-air
transmission in headphones (coming rom
an external tuner connected to this input).
When there is not external tuner, this
channel connects to the hybrid return o land
line, or secondary cell phone (wired).
1.3.3 Stereo Monitoring
The monitoring stage is a separate mixer that allows
you to hear the locally generated audio and the return
rom the studios, witch incomes via cell phone, land
line, or rom an external tuner that takes the on-air
transmission. The operator can choose mono or
stereo monitoring.
1.3.4 Power supply
Internal nickel-metal hydride (Ni/MH) battery, which
allows up to 20 hours o continuous use, depending
on the mode o work (see below).
1.3.5 48V phantom power
The "phantom" power source is available on all
microphone inputs. To enable it, press the “Phantom”
button at the rontal panel. When Phantom power is
not necessary, make sure that this button be
switched o , to avoid unnecessary battery
consumption.
1.4 Re ommendations for use
•Che k the battery level be ore go out with
the console. Always keep the charger handy.
•Do not connect the console to a charger that
is not supplied rom the actory.
•Do not orget to turn o the unit when it's not
used.
•Do not leave active Bluetooth and/or
streaming unctions i they aren't used. This
reduces the battery charge.
•I the console is used hanged at the
shoulder, take in mind the original bag
provided by Solidyne. This bag is optional
and sold separately.
1.5 What is streaming?
"streaming" is used to indicate a "data stream" that
lows through a cable or a network like the Internet.
These data in our case is a digitized audio signal (audio
streaming).
Streaming audio can be sent in di erent ways (or
protocols) on a computer network. Through Internet
TCP/IP (Trans er Control Protocol / Internet Protocol) is
used.
The TCP protocol is based on IP addresses to identi y
computers (hosts) rom where they come rom and
where the data packets are sent.
The 'port' are numerical values (0 to 65535) are used to
identi y processes that are communicating. At each
end, each device in the communication process uses a
single port to send and receive data. In conjunction, two
pairs o ports and IP addresses identi y unambiguously
two processes in a TCP/IP network. TCP ensures that
in ormation is received in order.
The Solidyne MX2400 module includes a digital audio
transmission over Internet, with TCP/IP and other
protocol. You can access to Internet in three ways:
•Connecting to a Wi -Fi
•Using an external USB 3G/4G modem
connected to the console.
•By a physical cable connection to a LAN with
Internet access.
At the studios, any PC with an audio player so tware
can "download" the audio sent by MX2400.
1.6 Make your first digital
transmission
To per orm the test transmission will use a 3G/4G
modem, as the actory settings MX2400 was designed
in order to connect a modem and transmit without
making con iguration changes. To per orm the test
using a Wi-Fi or cable connection, you must make
some changes to the settings, as detailed in Chapter 3.
•Plug the 'bridge-cable' RJ45 (supplied with the
kit) on the rear panel connecting "Ethernet
Streaming" and "LAN 3G".
•Plug a USB 3G/4G modem to the console
using the USB extension cable provided with
the unit.
SOLIDYNE CODEC–MIXER MX2400 Page 6

•Turn on the MX2400 and press the 'streaming'
button to power the internal computer.
•Now press the "1 kHz" button to send internet
signal.You are now transmitting!
To listen to the transmission, use another computer and
run an audio player (Windows Media Player, VLC
Player, Winamp). Enter the ollowing URL:
http://streamnow.alsolnet.com:8080/solidynedemo
To open an URL:
In Windows Media Player: "File → Open URL"
In VLC Player: "Media → Open network…"
In Winamp: "File → Play URL"
Now you can connect a microphone to the console and
listen to the sound quality.

Regardless of the configuration of the MX2400 and the server,
the transmission delay can vary depending on player used at
the reception, according to its time 'buffer'. See the
documentation of the player to optimize the 'buffer'. If you
enter http://streamnow.alsolnet.com: 0 0/solidynedemo in an
Internet browser, the browser will probably offer to play audio
directly, but this depends on the version and installed plugins.
Remember OFF Stage "Streaming" if it is not used,
since this is an unnecessary battery drain.
1.6.1 The streaming server
This simplicity to connect across the world, due in part
to the use o a streaming server. For transmission we
have just done, server courtesy provided by Solidyne
was used. You can use it to test, when you receive your
MX2400, but never use it to make real transmissions,
because it is or public use and any other radio with a
MX2400 can also use it and there may be interruptions
in the transmission (the bandwidth this server is
limited).
For the inal trans er our recommendation is to hire a
streaming server indicating that you need a very low
latency connection with IceCast servers, although it is
possible to use Showcast or other protocols.
MX2400 comes actory programmed to connect to
server Solidyne courtesy. There ore, once you hire a
server must re-program the MX2400 with the new
address (see Technical Appendix at the end of the
manual).
I you do not want to hire a streaming server, the
MX2400 Mixer lets you connect directly with Studios
without a server, but this requires a more complex
con iguration (see Chapter 4 - Transmission of
streaming).
1.6.2 Streaming general diagram
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Se tion 2 Wiring and basi operation
2.1 Rear panel
rear panel
2.1.1 Power suply
The console has a built-in rechargeable Ni-Mh
battery which provides up to 20 hours o continuous
use *.
The battery is recharged using the power supply that
came with the console that provides 12 VDC, 1.5A.
When you connect the external source, the battery
begins to recharge and the VU meter lights,
indicating that the unit is recharging. Considering a
total discharge o the battery, the load is obtained in
one night (12 hours). When the load is reduced, it is
possible to recharge the battery be ore ully drain
connecting the unit to the charger or a ew hours, so
that the load reach its highest level. To check the
battery level, press the BATT TEST button at the
rontal panel.
CONNECT THE CONSOLE ONLY TO THE
CHARGER PROVIDED BY SOLIDYNE.
Do not use chargers rom other manu acturers
or external battery.
* estimated value by considering a Bluetooth transmission, 3 dynamic
microphones and two headphones. Using digital streaming is reduced to 8
hours.
2.1.2 Mi rophone inputs
All microphone inputs (MIC-1; MIC-2; MIC-3; MIC-4 &
MIC-5) are electronically balanced, using XLR
connectors. All inputs gives 48 volts 'phantom power' to
use with condenser microphones.
2.1.3 Line level inputs
Inputs 3, 4 and 5 supports balanced TRS ¼” with line
level. When you connects a TRS plug, input gain
changes automatically.
Example o use: reception base o wireless microphone.
In addition, MX2400 has an unbalan ed stereo input ,
using TRS ¼” jack (channel 6).
Note that 3, 4, and 5 inputs are balanced mono, using TRS
jack. Do not connect a stereo signal, since left and right
channels will be mixed with inverted phase.
2.1.4 Input onne tions
Mic’s (XLR 1 to 5) Line (TRS 3 to 5) Stereo Line (TRS)
1 GND Tip Signal (+) Tip left
2 Balanced (+) Ring Signal (-) Ring Right
3 Balanced (-) Sleeve GND Sleeve GND
2.1.5 Tuner input
The signal injected to this input (¼” mono jack) is
sent only to the headphone mix through the ader
STUDIO. When you connects this input, disconnects
the hybrid return rom studios ( RJ11 connector
connected to land line or the wiring cell phone).
This input is used to monitor air emission rom an
external tuner with line-out (you can use the
headphone output o a portable radio).
Is used, or example, when transmitting digital audio
via Ethernet. Digital communication is unidirectional.
The console sends data to an Internet server and the
radio transmission is monitored, i possible, directly
rom the air by connecting an external tuner. Outside
the coverage area, monitoring is made via cell
phone.
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Note that i transmitting streaming audio,
monitoring must be limited to a brie listen to
check the signal, since the delay o the signal
will be annoying. The monitoring must be done
listening the direct audio o MX2400, using the
channel “Console”.
2.1.6 Program output
The MX2400 has two program outputs:
1. One monoaural program output, (PGM
MONO), balanced with XLR. The audio at
this output is processed to maintain
constant the audio level through the link.
2. One stereo program output (PGM STEREO)
unbalanced, with jack TRS ¼”. The signal at
this output is not processed, to maintain
intact the digital quality o the transmission.
This outputs send the program mix, that is to say, the
sum o signals o the 6 input channels (MIC-1 to
MIC-5, and Line/Bluetooth).

The stereo signal is formed by fixed panning of the microphone
channels, which are assigned to left, right and center as
indicated on the front of the console. The input LINE 6 is stereo.
More in “3.1.2 - Program controls and headphones"
The signal at the mono output is processed by a
dynamic range compressor that controls the peaks,
avoiding di erent levels on the air. The stereo output
is not compressed to preserve the natural sound or
broadcasting music.
Example of use: These outputs can be connected to
a portable recorder to obtain high quality recordings,
or it can be sent to the studios using a high quality
radio link (eg digital microwave link).
2.1.7 USB (dete tion)
The MX2400 mixer-codec is designed or easy
connection with laptops, or transmission via Internet
using VoIP so tware (Skype or similar). The USB
connection solves the send and return the signal to
the Studios.
A mini-USB to USB-A male standard cable is used.
When you connect the MX2400 mixer to a computer
running Windows © XP/Vista/7, Linux or OS-X, the
operating system detects the console and install the
required drivers. No additional drivers are needed.
Windows© will use the USB device as the de ault
playback device. The MX2400 is detected as one
USB playback device (stereo) by which the computer
sends audio to the MX2400; and one USB recording
device, by which the computer receives audio rom
MX2400.
ON USB DETECTION
Windo s XP: Check the output level in the Windows Mixer
("Programs → Accessories → Entertainment → Volume Control").
Windo s 7: Verify that the operating system has correctly
recognized the audio recording device. If Windows 7 erroneously
recognized as "microphone device" transmissions will be mono
(same signal on both channels). To fix it go to Control Panel →
Sound → Recording → select the USB device (shown as USB
microphone) and click [Properties]. Then select the tab "Advanced",
display the Recording Options menu and choose "2 channel, 16 bit,
44.1KHz."
2.1.8 Ethernet onne tion
The RJ-45 allows to connect the console to a LAN with
Internet access to send streaming; or to re-enter the
streaming to the MX2400's internal computer to get
Internet access via WiFi network or 3G/4G modem;
and to streaming to a streaming server or directly to the
studios o the radio station.
2.1.9 Telephone lines
RJ-11: Connects the console to transmit using land-
line or wired cell phone via hands ree (requires a
special adapter cable)
Bluetooth: Links the console to a mobile phone via
Bluetooth. Cell phone can be up to 3 meters away.
2.1.10 Headphone outputs
There are 6 headphone outputs with emale TRS
connectors (¼"). The signal on these outputs is a
headphones mix di erent rom program. It has an
internal ampli ier. The headphones can work in mono
or stereo.
Headphone bus combines the program signal, land
line return (RJ11 connector), Bluetooth return and
streaming return (not yet implemented).
The signal present at the TUNER input is sent to the fader
'STUDIO' when TUNER input is used, replacing the RJ-11
return (landline or cell phone wired).
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2.2 Front panel
2.2.1 Power on
Pressing the "ON" to turn on the console, whether it
is connected to the charger or operating with the
internal battery. The button has an optical indication
(window) that changes to red when it is pressed.
The "BATT TEST" displays on vu-meter the battery
charge (the console must be turned on). The red
zone o the scale indicates ull load. At hal -scale (5)
the battery is still good load. I the needle doesn't
reach the value "5", connect the console to charger
to the battery begins to recharge.
2.2.1.1 Charging the battery
Connect MX2400 to the 110/220 VAC mains using
the charger supplied with the console. When is
connected to AC outlet, the LED "CH" and VU meter
lights. The battery is ull charged a ter 12 hours,
there is no risk o damage i it stays connected
longer.
USE ONLY THE CHARGER PROVIDED BY
SOIDYNE.
NEVER CONNECT the MX2400 to a battery of a
CAR.
Remember turn off the onsole when is not used.
Power-on button indicates its state by means a
mobile window. Button seems red when is pressed,
and black when is released.
2.2.2 Phantom power
The button “Phantom” enables the 48 V phantom
power on all microphone inputs (MIC-1 to MIC-5),
or use with condenser microphones.
Remember that you can connect dynamic
microphones to phantom powered inputs without
risk, since dynamics microphones decoupled the
DC internally. I you don't need the phantom power,
make sure that it is turned o , to avoid unnecessary
battery drain.
2.2.3 Program Mixer
The MX2400 has two independent mixers: Program
mixer, which generates the signal that is on-air, and
Headphones mixer, which allows journalists to listen
the transmission, including the return rom studios.
The audio signals coming rom inputs MIC-1; MIC-
2; MIC/LIN-3; MIC/LIN-4; MIC/LIN-5/BLTH y LIN-
6/USB/IP are mixed using the channel's knobs on
rontal panel. This mix is the program signal.
Program signal sends to the radio station through
phone line and/or Internet; and to the console's
PGM outputs (mono and stereo). Program mix also
sends to the headphone mixer (knob “CONSOLE”).
Channel-5 LIN/BLTH sent to the program mix line
or microphone signal connected, and the return o
the Bluetooth phone. Both signals are summed,
there ore, i the air is required to send the Bluetooth
signal le t unconnected input Channel 5. I or a
particular case requires using a Bluetooth
communication as link (Bluetooth not aired) and
microphone input 5 (or line 5) at a time, you may
remove an internal jumper to remove the Bluetooth
signal return.
SOLIDYNE CODEC–MIXER MX2400 Page 11

Channel 6 /USB/IP gives the audio rom the device
connected to that input, a jack TRS with switch.
When the TRS input is not connected, the knob
gives the sum o the USB signal and the return o
streaming IP (not implemented yet).
Channels MIC/LIN-3; MIC/LIN-4 y MIC/LIN-5
supports microphone signals (XLR) or line signals
(Jack 1/4”). See Section 2.
Stereo mix
The signal in the stereo program output is
generated rom the ixed panning o mic channels
and the stereo input “Line 6”. We recommend to
use microphones cardioid-type.
Stereo panning o each channel, indicated at the
ront panel, is the ollowing:
Left
Right
MIC 1
MIC 2
MIC 3
MIC 4
MIC 5
LIN 6
(stereo)
Table 4.1
Examples: In live music show, microphones 1 to 4
are used to take all music, being panned to the left
and right. The microphone 5 must be used for the
singer or a centred instrument, as the bass drum of a
battery, which plays for both channels.
In the case of a sports transmission, you can use
Mic 1 and Mic for the environment, locating them
with a minimum separation of meters. The
rapporteur will use the main MIC-5 (center).
2.2.4 Headphone Mixer
Mix or headphones is made with our knobs:
2.2.4.1 STUDIO
Gives the return rom Studios when using a
telephone line connected to RJ11 (land or wired cell
phone) or the on-the-air transmission when an
external tuner is connected to the TUNER input.
When you connect the TUNER input, the signal at
this input is sent to the headphones mix through the
knob 'STUDIO'. When this input is not used, the
knob 'STUDIO' manages the return signal rom
RJ11, which can be connected to a landline or a cell
phone with an adapter cable.
When you open STUDIO, being the RJ11
unconnected , the output signal o the console
appears on the channel Studio, due to the Hybrid's
circuit is unbalanced. There ore, in these cases
STUDIO knob must always stay closed. This
situation resolves:
•Connecting the jack TUNER. This action
disconnects the hybrid monitoring.
•Connecting a land line to RJ11. Hybrid is
balanced and STUDIO gives you the return
rom Studios and very attenuated residual
local signal.
•Connecting to a cell phone to RJ11, using
the cable adaptor. It cancels completely the
Studio return since hybrids turn to o 4
threads.
2.2.4.2 CONSOLE
Manage the program signal generated by the
console. It can be stereo or mono.
2.2.4.3 BLUETH
Gives the return rom the cell phone linked to the
console via Bluetooth.
2.2.4.4 TCP/IP
Lets you listen a pre-recorded voice that reports the
IP number assigned to the console when it
connects to an Internet network.
This is use ul in the absence o a hosting server or
or technical testing.
2.2.5 MONO/STEREO
Switch the listening mode o the headphone mixer.
In the MONO position (pressed), you listen the
mono mix, the sum o all inputs.
In STEREO (released), you listen microphone
inputs according to the ixed panning (see Table
4.1).
WARNING :
Mono/Stereo button also swit hes the signal as
MONO for the digital stage (streaming). When
the MX2400 is set (via http) to transmit mono
streaming, the button Mono/Stereo must be
pressed (mono) to enable the use of all the
mi rophones. In this mode, the Talk-Ba k
mi rophone adds to the streaming mix, so Talk-
ba k an not be used for a private
ommuni ation with studios while the onsole
is on the air (with mono streaming).
SOLIDYNE CODEC–MIXER MX2400 Page 12

I the button is in 'STEREO' position and the
streaming is stereo, you will be making a stereo
transmission with stereo monitoring (headphones).
In this condition, the Talk-back microphone does
not mix with the streaming, allowing a private
communication with studios using a phone link while
broadcast the audio sends via Internet (stereo
straming).
I you need to use the Talkback mic to talk with
studios in a transmission, you can use the
mono/stereo button as stereo and transmit mono
streaming. But in this case, you can not use the
microphones 2 and 4; and remember audio rom
microphones 1 and 3 will be heard only at the le t
headphone's speaker.
2.2.6 Talk-ba k
Sends the talk-back microphone, located at the
ront o the console, to the mono output (MONO
PGM) and telephones (RJ11 and Bluetooth). Talk-
back signal in not sent to the stereo output.
When the MX2400 is on the air using streaming,
Talkback operates as private circuit ONLY in stereo
transmissions (button MONO/STEREO o
headphone mixer released). In the MONO position
the talk-back microphone is sent to streaming, so it
can not be used while the console is on the air.
2.2.7 Program VU-meter
The console incorporates a needle VU-meter that
shows the signal level at the output o the
compressor. This level corresponds to mono and
stereo program outputs (it shows the sum L+R).
This instrument is connected to an ampli ier that
measures the peak o the audio signal. An optimal
level reaches when the needle moves along the
scale, penetrating the red zone only with peaks. The
compressor attenuates the peaks reeing the
operator o a ine control.
The VU-meter is also used to show the status o the
battery. Pressing BATT TEST, the needle indicates
the battery level. The red zone indicates that the
battery is ull charged (this indication only occurs i
the console is turned on).
The battery drain is not linearly. A ter a brie initial
drop, the charge remains stable or many hours,
then begins to decline astly.
2.2.7.1 Audio ompressor
The Solidyne MX2400 has a dynamic range
compressor, o automatic action, which process the
send to the phone line and the mono program
output, maintaining the peak at a constant level.
Stereo streaming signals and stereo output are not
compressed, to save the ull dynamic range and the
nature o the sound. I using mono streaming, the
compressor is active because it is understood that
transmitting human voice.
LED indicators show the reduction gain applied to
the signal. Indications 5 and 12 expressed in
decibels, are the attenuation applied to the signal
when it exceeds 0VU. The more the signal exceeds
the 0 VU, the higher the compression used, being
18 dB the maximum compression. The ideal
condition o work is green LED always on and red
LED lighting just with the peaks.
This compressor prevents to the signal peaks
saturate the transmission lines, causing distortion.
Using this advanced compression allows a better
reconstruction o sound quality in the studios, using
Solidyne VQR®.
2.2.8 Test tone
MX2400 includes a test-tone generator, which is on
by pressing the button "1KHz". It sends a sinusoidal
tone o 1000 Hz @ 0VU to all outputs (mono,
stereo, RJ11, Bluetooth, Ethernet).
Test tone sent to streaming is 6 dB attenuated in
le t channel, to identi y the channels in studios.
SOLIDYNE CODEC–MIXER MX2400 Page 13

SOLIDYNE CODEC–MIXER MX2400 Page 14

Section 3 Work schemes
The codec-mixer Solidyne MX2400 allows several
work modes so there are many possible
con igurations. This chapter discusses the various
scenarios, including telephone communications. For
each case, the connection, con iguration and speci ic
aspects o the operation are described. The possible
con igurations are:
•Streaming using a 3G/4G USB modem.
•Streaming connecting the MX2400 to a
Wi-Fi LAN
•Streaming connecting the MX2400 to a LAN
with Ethernet cable.
•Streaming using an external laptop
connected by USB.
•Audio using only telephone lines (physical
or mobile).
3.1 Streaming using a 3G/4G USB
modem
In this mode, the MX2400 obtains Internet access
through an external 3G/4G modem connected
directly via USB.

Note that the transmission is unidirectional: from the console
towards studios, with a delay that depends on the type of
streaming connection (direct or through a server).
3.1.1 Conne tion
Check on the rear panel, the presence o the bridge-
cable linking the RJ45 "Ethernet streaming" and "3G
LAN".
Connect the Modem to the MX2400 using USB
extension cable supplied by Solidyne. This cable
allows you to direct the modem to achieve the best
reception (i the case that the operator at the Studios
reports transmission problems).
3.1.2 Settings
Usually the Modem does not require any special
con iguration. When connected, it will automatically
provide Internet access to the MX2400.
By de ault, the 'IP audio' module o MX2400 transmit
to the Solidyne's test server. To change the
destination IP, you must access via Wi-Fi to
MX2400, as explained in 4.1 - Configuring IP module.
On location the streaming is received with a standard
audio player so tware (see Chapter 5 - Operation
Studies).
You can use a telephone channel o the MX2400 to
dialogue with the operator who's is at studios, to
con irm reception o the streaming (see 3.5 - Return
from Studios)
I the de ault con iguration was modi ied, you need to
per orm ollowing settings to use the Modem:
1) Turn on the MX2400.
2) Enable the "streaming" button on the ront panel.
Wait a ew seconds.
3) Using a laptop, tablet or smartphone, look or
available Wi-Fi networks.
4) Connect to the "MX2400" network (password:
streaming).
5) Open a Web browser and enter 192.168.0.254
(user: admin password: admin) You will access
to the settings panel o the MX2400 internal
router. Enter the ollowing values:
a) System Tool → Working mode: enable "3G/4G
router".
b) Save. The internal computer o the MX2400 is re-
started.
6) Plug the modem to the console, pre erably
using the extension cable to ind the best
reception.
7) On the Laptop, check in settings panel the
Status option, section 3G/4G that the modem
was identi ied and is connected to the network.
SOLIDYNE CODEC–MIXER MX2400 Page 15

3.2 Streaming onne ting MX2400
to a WiFi LAN
In this case, MX2400 obtains Internet access via
WiFi network. The transmission is unidirectional.
From MX2400 to Studios.
3.2.1 Conne tion and setup
The de ault settings are or the use o a 3G USB
Modem. In order to the codec-mixer MX2400 access
to a WiFi network, you need to change the
con iguration o the internal router MX2400.
MX2400 generates its own WiFi node, which can be
accessed rom any WiFi device (Laptop, Tablet,
Smartphone), to edit the con iguration. This own
network appear as "MX2400" among the available
networks. Do not con use MX2400 network, with
WiFi network used to transmit streaming. The
MX2400 node is always available to access the
internal con iguration.
1) On the rear panel, con irm the existence o the
cable-bridge connecting the RJ45 "Ethernet
streaming" and "3G LAN".
2) Turn on the MX2400
3) Enable the "streaming" button on the ront
panel.
4) Using a laptop, tablet or smartphone, look or
available WiFi networks.
5) Connect to the "MX2400" (network password:
streaming).
6) Open a Web browser and enter 192.168.0.254
(user: admin - Password: admin) This opens
the settings panel o the MX2400 internal
router. Enter the ollowing values:
a) System Tool → Working Mode: enable
"so tware switch mode" and select "WISP
Router client." Press Save. The internal router
will reboot. This operation may take several
seconds. Once the MX2400 re-startconnect
the laptop back to the 'MX2400' net.
b) Wireless → Wireless setting: Press the
"Survey" button. A list o available WiFi
networks appears.
c) Select the network used to transmit and
click "Connect". Automatically be selected
MAC-address o the network.
d) Select "Key Type" and select the method o
encryption security to the WiFi network you
want to connect (Windows shows the
encryption on the list o available networks)
e) Password: enter the password or the WiFi
network
) Press Save!
7) Check i you have Internet access in the
MX2400 Laptop connected to the network,
accessing any Web site. I you success ully
navigate the WiFi setup was success ul. The
MX2400 console is already able o transmitting
streaming.
8) I you do not have Internet access, go back to
point 6 and review the settings or the Wi-Fi
network.
By de ault, IP audio module o the MX2400 streams
to the server Solidyne to test transmission. To
change the destination IP, you access via Wi-FI to
the settings pannel o the audio-IP module, as
explained in "4.1 - Setup IP module".
The studios receives the streaming with a standard
audio player (see Chapter 5 - Operation in Studios).
You can use a telephone channel o the MX2400 to
communicate with the technical operator at studios
and con irm receipt o the streaming (see 3.5 -
Return from Studios).
3.3 Streaming onne ting MX2400
to LAN with Ethernet able
In this case, the MX2400 access the Internet by
connecting to a LAN using standard RJ45 cable. The
transmission is unidirectional rom the MX2400 to the
studios.
Conne tion and IP setup
By de ault, the computer is con igured to operate with
USB MODEM. To connect to a LAN, you must
change the IP address o the unit. This must be done
BEFORE you connect the MX2400 to the LAN, it
requires the cable-bridge joining "Ethernet
streaming" to "LAN 3G" on rear panel.
1) On the rear panel , place the cable - bridge
connecting the RJ45 " Ethernet streaming " to "
LAN 3G " .
SOLIDYNE CODEC–MIXER MX2400 Page 16

2) Turn on the console MX2400
3) Enable the " streaming " button on the ront
panel.
4) Using a Laptop , look or WiFi networks :
5) Connect to the " MX2400 " ( network password
: streaming)
6) Open a Web browser and enter 192.168.0.90
(de ault IP o the computer).
7) Go to "Settings → Settings → Network"
8) Here the IP address o the MX2400 is de ined.
To connect to a LAN you can:
a) Enable automatic IP assignment (DHCP),
entering the value 0 (zero) in all ields.
b) Enter a ree IP ixed , the range used in the
LAN.
9) Click "Apply". From now it is not possible to
access the console via WiFi.
10) Remove the cable-bridge.
11) Connect the RJ45 "Ethernet streaming" rom
the console to a router / switch on the LAN.
12) Using another terminal on the same network,
open a Web browser and enter the new IP
address (i you chose DHCP, the IP address
announces on headphones on boot).
13) Set the transmission destination IP, as
described in "Chapter 4 - Transmission of
streaming".
3.4 Transmisión por VoIP
This case raises an outdoor mobile unit rom which a
reporter dialogue in real-time with studios. MX2400 is
connected to a laptop running a VoIP so tware
(Skype or similar).
3.4.1 On transmission
Via USB, the MX2400 Solidyne console connects to
a laptop with Internet access. Communication with
radio studios is set rom the laptop using a VoIP
so tware (Skype or similar), which provides good
audio quality and minimum delay even when
bandwidth is limited.
IN STUDIOS, THE OPERATOR DO NOT SEND
BACKGROUND MUSIC TO RETURN. ONLY THE
VOICES. The Skype communication is hal -duplex.
Background music can cause cuts in the audio
transmission.
3.4.2 On the return of studies
The mix generated in the MX2400 is sent via USB to
the laptop, which transmits it to the radio. In turn, the
laptop sends to MX2400 the return rom studios,
which adds directly to the headphone mix. The
operator o the MX2400 has on headphones return
rom studies, giving level to USB/IP knob.
3.5 Monitoring on lo ation
(when transmitting streaming)
The transmission of digital streaming is
unidire tional (with the exception o VoIP so tware
running on an external computer). The console
transmits to studios via Internet. The studios goes
back to the console via a cell phone (see picture
above).
Simultaneously to the Internet link, MX2400 provides
a Bluetooth wireless communication to the studios.
From the studios the radio sends audio to the
console, using a standard phone hybrid. The
operator o the MX2400 listen the transmission by
opening the knob BLUETH o headphones mixer (or
'STUDIO' when RJ11 connector is used instead
Bluetooth).
3.5.1 Streaming laten y
The MX2400 transmission is almost instantaneously
(100 mS delay). But the path that streaming ollows,
including Internet and the decoding at the destiny
computer, makes the total delay amounts 0.3 to 1.5
seconds or a direct link; and 0.5 to 5 seconds i you
use a Icecast streaming server.
This delay (aka latency) must be considered by
journalists. It is irrelevant i you send a music estival,
a sports match, or do interviews rom the MX2400.
However, it must be in consideration when the
journalist asking being studios, and the interviewee is
on location (MX2400). This means that the journalist
should ask through a cell phone link, and wait or the
latency or the response, that coming rom the
MX2400 via Internet.
You can use the analogue transmission to establish
a dialogue with zero latency, since the MX2400 also
transmits the audio signal by cell phone. Just switch
to hybrid that the receives the phone's signal at the
studios i you want to have a communication without
delays. In turn, you can use in the studios the VQR®
system to restore the voice quality o the interview
(please listen the audio demos at Solidyne's web
site).
The next chapter details how to manage in studios
the signals generated by the codec-mixer MX2400.
SOLIDYNE CODEC–MIXER MX2400 Page 17

3.6 Using phone lines (land lines and mobiles phones)
3.6.1 General onne tion diagram to transmit audio using standard telephone lines
3.6.2 Conne ting by land line
The telephone line connects to MX2400 to 'LINE'
connector, RJ11 type. MX2400 sent mix program to
the phone line, which is received at the studios; and
receives return signal rom studios, that mixes
directly to headphones.
When MX2400 transmits using land lines, you can use the
Bluetooth link to make a second call, that can be send to air.
MX2400 has a DTMF keypad to dial with land lines. To
dial up, proceed:
1. Take the line pressing the button “PHONE”.
. Open the knob “STUDIO” to listen in
headphones the dial tone.
3. Dial the phone number.
4. To talk, you can use the built-in microphone
(Talk-back), or a microphone connected to the
console (recommended). Both are sent to
studios via land line.
3.6.3 Using a Bluetooth ell phone
MX2400 supports connection o a mobile phone via
Bluetooth. Bluetooth call phone can be used to link
MX2400 to studios, or send a calling on the air (only
when transmit by streaming or land line).
Any phone with Bluetooth can be linked to the
MX2400, avoiding the use o the headset cable,
which di ers or each mobile. Bluetooth also allows
that cell phone be located up to 10 meters away rom
the console.
The Bluetooth incoming audio is sent to the program
mix (Channel 6) and to the headphones mix
(Blueth). The Bluetooth wireless connection allows
or better audio quality since the signal remains
digital rom the remote cell phone to the phone hybrid
located at studios.
3.6.3.1 Linking the ell phone with the MX2400
By linking cell phone to the MX2400 creates a link
between two devices, and allows the phone to
remember the unique ID o the codec-mixer
MX2400. This procedure is made only the irst time
that use the cell phone. Once the console and the
cell phone are linked, the console automatically
connects to these mobile when you enables
Bluetooth on both devices.
Procedure:
1. MX2400: Enables discovery mode. Being
Bluetooth switched o (LED o ) press and hold the
button BLUET (5 seconds) until the LED lashes
alternating between green and red, indicating the
discovery mode. In this condition the MX2400 can be
ound by the cell phone.
Remmember: To enable Bluetooth, press and hold the button
BLUET by 2 seconds. Release the button just when LED lights.
Led will flash in green slowly, indicating Bluetooth is on.
If when led lights green you remains hold the BLUET button
more that 2 seconds (5 sec approx) Bluetooth enters changes to
“discovery” mode (toggling green and red).
2. At the ell phone, search or Bluetooth devices.
This procedure varies by brand and model, see the
user's manual o the cell phone.
3. When the phone inds the MX2400's, it shows the
code “BTM751” on screen. When the phone asks or
the password, enter 0000 (de ault). See your phone's
user's manual or details.
SOLIDYNE CODEC–MIXER MX2400 Page 18

4. MX2400's ID is now stored at the cell phone's
memory. You don't need to repeat this procedure or
this phone. In the ront panel o the console, the light
will change to green lashing slow, indicating that
Bluetooth is active.
In some cell phones, it is necessary to "connect" the new device
found to active it. In others, the new device is activated after being
detected.
If there are other Bluetooth devices operating in the studios, we
recommend turning off Bluetooth on the MX2400, to repeat the
search with the cell and write-down the existing devices. Then turn
on Bluetooth in the MX2400 and repeat the search. The new
displayed (BTM-751) will be the MX2400.
3.6.3.2 Re- onne tions
To reconnect the cell be ore linked, power on the
MX2400's Bluetooth by press and hold 2 seconds the
BLUET button, and enables Bluetooth at the cell
phone (i necessary, some cell phones disables
Bluetooth device when turn it o ). When make or
receive a call, the audio is sent to the console.
3.6.3.3 Set the volume
At the cell phone, Bluetooth volume must be set at
maximum level, in order to obtain a good reception and
to sure the best signal to noise ratio.
This adjusting must be done ith a real calling using Bluetooth.
Usually, the volume of the phone's speaker is independent of the
volume of Bluetooth device. If you change the phone's level without
make a calling, you will only be changing the volume for the phone's
speaker, not the Bluetooth level. To change the Bluetooth level, make
a call using the console (or a hands free headset) and set the
Bluetooth level to the maximum. This setting is stored at the cell
phone's memory. If you use another cell phone ith the console,
you needs to set the Bluetooth level again.
To turn off MX2400's Bluetooth, press and hold the
Bluetooth button until LED turn o .
3.6.4 Wired ellular: hands free
adapter
The RJ-11 (LINE) supports direct connection o a
second cell phone, using the "hands ree" connector.
This cell phone is used to link to the Studios. You
probably do not need this second connection, as it is
or very special applications.
This connection varies by brand and model o phone.
You must purchase the hands ree headset or your
cell phone and consult your phone's documentation
to make the connection as diagram below.
What cell phone transmits through this connector are
the audio signals rom cell phones. The console
sends PGM signal to the cell, which transmits to the
radio. The radio sends back to the telephone, which
enters through the cell phone to the console and sent
to the headphone mix (Studio). Usually, the
microphone and speaker phone are disconnected
while using the audio connector or hands- ree.
3.6.5 Re eiving at the Studios
At the studios, communication is established using a
standard telephone hybrid. To achieve good results it
is recommended to use pro essional quality
equipment. Solidyne provides high quality telephone
hybrid: rack-mount units (series HL-202 HL-and
Bluetooth 203VQ) and built-in systems into the on-air
consoles.
In addition, hybrids may include Voice Quality
Restoration (VQR®), a technology developed by
Solidyne which allows the reconstruction o the low
and high requency components losses in the
telephone communication; and eliminate background
noise. The operator adjusts the degree o restoration.
This technology expands the per ormance o
MX2400, allowing high quality transmission on
location using conventional phone lines (land or
cellular). We recommend listening to the VQR®
demo clips at www.solidynePRO.com
3.6.6 Using MX2400 with phone lines
Whether you use cell phones or land lines, the
transmission is made by calling to the studios o the
radio station, or receiving the call. To make a call
rom the console, proceed as ollows.
SOLIDYNE CODEC–MIXER MX2400 Page 19

3.6.6.1 Using a land line
1) Press the button 'PHONE'.
2) Open the knob 'STUDIO' to listen the dial tone at
the headphones.
3) Dial the number using MX2400's DTMF keypad.
To hang up and redial, release 'PHONE' and press
it again.
4) To talk, you can use the built-in talk-back
microphone, by pressing the 'Talk-back' button; or
an external microphone connected to any input.
5) Another option is to receive the calling rom Studios.
In this case the 'Ring LED' will lights (blue) with
each ring. Calling takes by pressing 'PHONE'.
6) Be ore starting the audio transmission, you can
send a test-tone (by pressing "1KHz"), in order to
the operator at studios checks the audio level.
7) To ends the transmission, release 'PHONE' button.
The phone line will be released.
3.6.6.2 Using a ell phone
Usually, the cell phone is linked to the MX2400 via
Bluetooth (recommended) but i the mobile don't
have Bluetooth, you can connect it with a cable
adapter to the RJ-11. I using Bluetooth, remember
to pair the console with the phone be ore making the
call (see 3.6.3 - Connecting to a cell phone).
1) To turn on Bluetooth in the MX2400, press the
button “BLUETH” and release just when LED lights.
I the cell phone is connected to RJ11, press the button
“PHONE” be ore dial.
2) The call is made rom a cell phone liked to the
console. You may also receive the call rom the
studios, but usually it is the reporter who
communicates with the radio.
3) To listen at headphones the ring tone, open the
knob 'BLUETH' at headphone section (i connected
to the RJ-11 open the knob 'STUDIO').
4) To talk, you can use the built-in microphone,
pressing the talkback button, or a microphone
connected to an input (recommended in noisy
environments).
When the cell phone is linked via Bluetooth, depending on the
cellular model, it is possible to redial the last call by pressing
the button 'Blueth' on the console.
It is also possible to take an incoming call directly from the
console by pressing the button 'Blueth'.
5) Be ore starting the transmission, you can send a
re erence tone (by pressing "1KHz") in order to the
operator at the radio station adjust the reception
level.
6) Ends a all: The calling can be inished by pressing
'BLUET' at the console; or directly rom the cell
phone.
Do not forget to turn off Bluetooth hen not used,
since this stage represents an unnecessary battery
drain.
SOLIDYNE CODEC–MIXER MX2400 Page 20