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June 2015 - Ed.2.1 

 Audio over IP decoders E411, E413, E415 & E417 technical manual

 

Page 3 

Chapter 2: Functionality 

2.1 

 

Audio source types 

Decoders can play high quality stereo sound coming from several source types: 

 

RTP: 

Audio streams coming from E321 encoders, E495 or E497 paging consoles, E430 audio server, computer 
applications or other devices, in the RTP format as defined in RFC 3550.  

The  RTP  can  be  received  also  in  multicast  mode.  So,  many  decoders  can  play  the  same  RTP  stream 
without extra bandwidth consumption. 
The allowable payload formats are:  

o

 

G711-A: (vocal quality, VoIP standard)  

o

 

PCM 16 bits/sample, 1 or 2 channels, 11025 Hz (voice/music – medium quality) 

o

 

PCM 16 bits/sample, 1 channel, 22050 Hz (voice/music – good quality) 

o

 

PCM 16 bits/sample, 1 channel, 32000 Hz (voice/music – very good quality) 

o

 

MP3 (quality according to emitter) 

When using these RTP formats, as audio is not compressed, the latency is fairly low

1

. 

 

RTP/SIP 

2

: 

Audio streams coming from a standard SIP phone or PBX. The audio codec used is G711-A.   

The  decoder  has  an  internal  SIP  agent  that  can  be  registered  in  an  SIP  PBX  and  acts  as  a  standard 
extension accepting calls. 

Also,  can  be  configured  in  “peer-to-peer”  (P2P)  mode  if  not  PBX  is  used  to  accept  calls  directly  from 
phones. 

When a call is received, is automatically answered and the audio is sent to the output if no other higher 
priority channel is being played. 

 

SHOUTcast / ICEcast 

3

: 

High  quality audio  streams coming from local  or internet  servers (internet  radios).  These streams can 
also be generated with the ENA software or the E430 audio server. 

The device connects to the configured URL to acquire the compressed audio stream. The audio can be 
sent in any of the following formats: 

o

 

MP3 up to 192 kb/s 

o

 

AAC+ up to 192 kb/s 

o

 

Ogg-Vorbis up to 192 kb/s 

Due  to  audio  compression  and  buffering,  this  format  has  a  very  high  latency,  that  can  reach  several 
seconds. 

 

 

                                                                 
 

1

  The minimum latency is obtained in a well dimensioned and configured network, and can be as low as 40 milliseconds. 

2

  SIP is the most widely used protocol nowadays for session establishing in VoIP telephony. It is defined in RFC 3261 . 

3

  SHOUTcast and ICEcast are both standards used to transmit music through Internet. There are many public radios in Internet 

using these protocols, and is quite easy to create a proprietary radio using one ICEcast server provided by an ISE (Internet 
Services Provider). 

Summary of Contents for E411

Page 1: ...Audio over IP devices EQUITEL Network Audio Audio over IP decoders mixers E411 E413 E415 E417 Technical Manual Ed 2 1 ...

Page 2: ...e for the decoders of the ENA Audio over IP family of devices Includes the E411 E413 E415 and E417 equipment It is valid for versions Hardware EAIP1V133 Firmware 3 06 Equipos De Telecomunicación Optoelectrónicos S A Zaragoza June 2015 Ed 2 1 ...

Page 3: ...mplified audio output 11 3 8 Audio inputs 12 3 8 1 Mic input 12 3 8 2 Line input 12 3 9 USB connector 12 3 10 Wall mount remote control connector 13 Chapter 4 Configuration and control of the device 14 4 1 Accessing the device 14 4 2 Configuration 16 4 2 1 General Information 17 4 2 2 Audio 17 Audio output 17 Input Amplification 17 4 2 3 Audio Channels 18 RTP Source type configuration 21 SIP PBX S...

Page 4: ...n 38 5 3 1 Initial screen 38 5 3 2 No BGM sources screen 38 5 3 3 Default control screen 39 5 3 4 BGM channel selection 39 5 3 5 ADV or EMG channel information 39 5 3 6 System info and configuration 40 BackLight level change 40 5 3 7 Link error screen 40 Chapter 6 Software 41 Chapter 7 Technical data 42 7 1 Dimensions 42 7 2 Electrical Specifications 43 7 2 1 Power 43 7 2 2 Ethernet 43 7 2 3 Audio...

Page 5: ...nning an application or a SIP phone The E495 and E497 desktop microphone consoles can also send vocal messages to the decoders for paging applications If more than one of these devices are used they intercommunicate to avoid message collisions The E430 is a music and announcements server that can generate audio from internally stored files It can be used to generate background music channels and o...

Page 6: ...l outputs can be used to switch ON OFF the external amplifier E415 Amplified decoder Same as E413 and includes a high quality 25W audio amplifier Amplified output can be configured in mono or stereo Line out output can be used simultaneously E417 Decoder Mixer With the same characteristics as E415 it can also play sound from files stored in an external USB memory and from its analog inputs Ideal t...

Page 7: ... acts as a standard extension accepting calls Also can be configured in peer to peer P2P mode if not PBX is used to accept calls directly from phones When a call is received is automatically answered and the audio is sent to the output if no other higher priority channel is being played SHOUTcast ICEcast 3 High quality audio streams coming from local or internet servers internet radios These strea...

Page 8: ...y audio files stored in an USB mass storage device The allowable formats are o MP3 up to 320 kb s Fixed bit rate Analog inputs in E417 only The E417 has two analog inputs microphone and line in than can be sent directly to the output Each input can be assigned only to one of the possible audio sources See next point for more information ...

Page 9: ...internet radio The playing of a channel of this layer can be interrupted by the presence of audio in one channel of the other two layers Advertisements This is the layer used to play advertisements It accepts up to 3 channels each one with its own priority level Allowable source types are RTP RTP SIP Audio files in periodic playlist mode and the analog inputs Audio in this layer can interrupt the ...

Page 10: ...urces based on local files for the advertisement layer are activated by a time scheduling When used for the background music layer they are always active being played continuously in a loop mode if the channel is selected Analog inputs used for the Advertisements or Emergency layers are activated by one of the digital inputs in the device When used for background music they are always active Each ...

Page 11: ...gure 2 External elements Element Description Applies to Indicators All models USB connector E417 Microphone input E417 Audio line input E417 Audio line out All models Headphone out All models Ethernet All models Terminal for I O contacts E413 E415 E147 Amplified audio output terminals E415 E147 IP recovery and reset default button All models Power supply connector All models Remote wall mount cont...

Page 12: ...A 24V 2A E417 12V 1A 12V 2A 24V 2A E411 P 12V 1A or PoE 802 3af E413 P 12V 1A or PoE 802 3af E415 P 12V 1A or PoE 802 3af 12V 2A or PoE 802 3at 24V 2A E417 P 12V 1A or PoE 802 3af 12V 2A or PoE 802 3at 24V 2A IMPORTANT NOTE Decoders with amplified audio output E415 and E417 need to be powered with an external 24V 2A supply to achieve the maximum output power to the loudspeakers even in the P versi...

Page 13: ...ivity When blinking the line is OK If the LED is OFF there is no link Amber LED indicates the speed of the connection If the LED is ON the link is established at 100 Mb s if OFF at 10 Mb s 3 6 Digital I O The E413 E415 and E417 models have two digital inputs and two digital outputs located in terminal The inputs can be used to trigger some audio sources activation One of the most typical applicati...

Page 14: ...al is connected to the right one C NO NC Figure 5 Digital outputs The characteristics of the relays are Maximum operating current 1A Maximum operating voltage 125VAC or 60VDC 3 7 Audio Outputs As previously said decoders accept several audio input channels but can only play one at a time The resulting audio output is sent simultaneously to the three possible audio outputs Headphone line out and am...

Page 15: ...configured in accordance See point 4 2 2 The maximum output power obtained depends on the power supply chosen as shown in point 3 2 There are two internal potentiometers in the device to limit the maximum output power sent to the speakers Figure 7 Internal volume potentiometers Devices are shipped with this potentiometers set to maximum value If the used speakers power is smaller than the maximum ...

Page 16: ... 2 Line input The line input is a stereo RCA with a level of 2 5Vpp and an impedance of 80kΩ The white connector is the left channel and the red the right one 3 9 USB connector The E417 has a type A USB connector to connect a mass storage device to store audio files that can be decoded and played locally It s an USB 2 0 interface that supports devices formatted in the FAT32 file system with a maxi...

Page 17: ...re 2 to connect the TMH60ENA wall mount remote control In this case a 3 5 mm jack to terminal adapter is supplied to easily connect the 3 wires needed for the remote control as shown in the figure Terminal Wire D Data 5V output Ground Figure 9 Adapter for wall mount remote control connector These 3 wires must be connected to the TMH60ENA wall mount controller corresponding terminals 12 ...

Page 18: ...P 192 168 1 1 Subnet Mask 255 255 255 0 Gateway 192 168 1 254 There are three methods to know the IP address of the device Connect headphones to the connector and momentarily press the IP RD button The device will say its IP address through the headphones Using the free EQUITEL Devices Searcher application 8 for locating Equitel devices in an Ethernet network Using the free application ENALite 8 t...

Page 19: ...the icons to change the language Initially no source is configured So the only information shown on this page is the device s MAC serial number and firmware version The upper button lets you toggle between the two working modes Control Mode When the device is properly configured this page shows its status and allows its control i e background music channel selection and volume control See section ...

Page 20: ...ernet interface configuration Fw Reset Firmware update initial values recovery and device s reset VERY IMPORTANT After doing changes in the configuration you must press the Save button that appear at the bottom of the page If the browser window isn t high enough to show the button you must use the vertical scroll bar to make it visible When changes are saved the device reboots and disconnects for ...

Page 21: ... devices present in a network 4 2 2 Audio This tab contains the analog audio input and output configurations Only appears in the E415 and E417 models Figure 12 Audio setup page Audio output It allows the configuration of the amplified audio output mode This mode can be Not used The output amplifier is not powered reducing the consumption of the device Mono The output is in mono mode Stereo The out...

Page 22: ...layer Only one channel AD Advertisement layer with three channels AD1 to AD3 from higher to lower priority BGM Background music layer with 6 channels BGM1 to BGM6 all with the same priority The change from one channel to another can be done manually through the Control mode of the web server If more than one BGM channel is configured at the bottom appears the BGM auto selection option that allows ...

Page 23: ...ts only in E413 E415 and E417 or with the TMH60ENA wall mount controller For the other source channels ADV and EMG volume can only be changed from the web page Turn output contact on Output contact activated when the source is active only for the E413 E415 and E417 models Source type Allows the selection of the audio source type The allowable options depend on the layer of the channel being config...

Page 24: ... at the bottom of the table BGM Auto Selection If this option is checked when the data connection of the BGM channel that is being played fails the decoder tries to play the next configured channel BGM Volume control with input contacts This allows to use the input contacts only available in E413 E415 and E417 to control the volume of the background music being played When input contact 1 is activ...

Page 25: ... data for more than 1 second This is the configuration form for this source type Figure 16 RTP source type setup form You can select from six audio qualities Vocal quality PCM G711 A PCM 11025Hz 16bit sample Mono PCM 11025Hz 16bit sample Stereo PCM 22050Hz 16bit sample Mono PCM 32000Hz 16bit sample Mono MP3 Buffer size number of packets in the input buffer The greater the value the more network ji...

Page 26: ...t The device registers itself as an extension on the PBX and answers automatically the incoming calls activating the channel The channel is deactivated when the call is ended by the other end telephone The configuration form for this source is Figure 17 SIP PBX source type setup form The parameters to configure are PBX IP IP address of the PBX PBX port SIP port of the PBX the standard is 5060 Refr...

Page 27: ...d a simple numeric extension IMPORTANT NOTE This is not possible with all the phones in the market So special care has to be taken when choosing the phone used to make the calls and also with its configuration The configuration form for this source type is Figure 18 SIP P2P source type setup form The parameters to be set are Local extension The extension assigned to the device Even it cannot be us...

Page 28: ...yer channels The configuration of this source type is very simple Figure 19 SHOUTcast ICEcast source type setup form The main configurable parameter is the URL of the stream to decode Obtaining the URL for an Internet ICEcast radio There are many public internet radios that are broadcasted using the ICEcast or SHOUTcast protocols The method to get the URLs for that radios depends on the publisher ...

Page 29: ...e 25 Figure 20 How to get an ICEcast URL from www icecast org streaming directory Figure 21 Paste obtained URL into the source setup form 1 Choose your preferred radio and check the format is allowed 2 Copy link using right mouse button 3 Paste link using Ctrl V on Windows systems ...

Page 30: ...ion to generate the ICEcast stream the format for the URL would be http DeviceIP name 8000 Stream name where Device IP name Represents the IP address or name in the network of the device generating the stream In case of the ENALite application it must be the name or IP address of the computer where the application is running Stream name Represents the name given to the stream in the E430 or applic...

Page 31: ...1 to 999 The files must be in MP3 format with a maximum bit rate of 320 kb s To select the USB folder press the button Open This will open a new window with the content of the connected USB Navigate though the tree select the desired folder and press Select The device will play all the files in the folder in a sequential loop at the set rate Files are played in alphabetic order So if you want play...

Page 32: ...ed and the playing mode Figure 23 USB Playlist Source type setup form To choose the USB folder containing the files to be played press the button Open select it in the tree shown and press Select Folders with special characters like vowels with accent cannot be chosen Only ASCII characters are supported In the Playing mode selector there are two choices Normal Files are played in alphabetical orde...

Page 33: ... or AD layers If there is another channel using one input contact to trigger the line input the Activation field will let you to choose only the other contact Also if you are using the input contacts to control the volume of the BGM sources and try to create a channel with the microphone source type you ll be prompted about the incompatibility and the possibility to disable the volume control If t...

Page 34: ...June 2015 Ed 2 1 Audio over IP decoders E411 E413 E415 E417 technical manual Page 30 Figure 25 Microphone Source setup in BGM layer ...

Page 35: ... Source setup in EM or AD layer If there is another channel using one input contact to trigger the microphone input the Activation field will let you choose only the other contact Also if you are using the input contacts to control the volume of the BGM sources and try to create a channel with the Line source type you ll be prompted about the incompatibility and the possibility to disable the volu...

Page 36: ...June 2015 Ed 2 1 Audio over IP decoders E411 E413 E415 E417 technical manual Page 32 Figure 27 Line Source setup in BGM layer ...

Page 37: ...ccess data has to be configured manually to match the network needs Once the corresponding parameters have been established save changes by pressing the Apply button at the bottom of the page After saving the settings the device will reboot If set to static mode the web server will try to reconnect after 32 seconds with the new IP If it can connect it will ask again for the security credentials an...

Page 38: ...avoid mistakes in the network configuration If you make a mistake entering any parameter and the device becomes inaccessible simply wait 5 minutes and reconnect with the old values Dynamic mode If IP is set to dynamic mode the device will try to obtain the access parameters from a DHCP server in the network If it can t obtain the parameters in 3 minutes it will switch automatically to the static I...

Page 39: ...king in the improvement of our products As a result of this process new firmware versions are published The update process is very simple just select the firmware file you have received or downloaded 10 by pressing the button with the folder icon and then press the Save button The update process will take a few minutes after which the device will restart automatically Normally the configuration is...

Page 40: ...annel currently playing and allows changing the active BGM channel Figure 31 Control page The channel being played is highlighted in shaded gray and a control volume is shown To change the active BGM channel simply press its play button If an AD or EM channel is activated it will be highlighted and its volume can be adjusted ...

Page 41: ... 60mm European universal box It can be also adapted to different plates series of the main manufacturers with the appropriate mounting adaptors In the next table are the existing adaptors Manufacturer Series BJC Aura Iris Magna Mega Coral Room Sol Ibiza SIEMENS Delta Miro EFAPEL Sirius 70 Apolo 500 Logus JUNG CD500 CD Plus LS990 LS Plus LEGRAND Galea President Decor Suno Valena CEESE Serie DosMil ...

Page 42: ... connections 5 3 Operation 5 3 1 Initial screen When the control is powered it shows the initial screen After a few seconds it will show the default screen see point 0 If there are no BGM sources configured in the decoder the controller only can show the information of the emergency or advertisements channel being decoded So the control screen is replaced by the one shown in point 5 3 2 If the com...

Page 43: ...see point 5 3 4 If pressed for a few seconds it shows the information and configuration screen of the TMH60ENA controller see point 0 5 3 4 BGM channel selection The screen shows the list of identifiers of the BGM sources configured in the decoder The selected channel is marked in inverse The right buttons allows to change the selection The upper left button returns to the default screen without a...

Page 44: ...e controller from 1 lowest to 9 highest The level is changed with the right buttons and validated with the lower left one The upper left button discards the change and return to the info configuration screen The backlight is switched off after a time there is no activity in the controller and automatically switched on at the configured level when the user pushes a button or there is any change in ...

Page 45: ...ne or audio files Each stream is sent to a specific configured zone Generate a RTP stream for the emergency channel using the computer microphone or pre recorded messages The destination zone of the stream is chosen when used Also we have created the sample application ENAControl for Android that allows to control all the decoders in a LAN using the WIFI access These applications are created not o...

Page 46: ...ge 42 Chapter 7 Technical data 7 1 Dimensions These are the external dimensions of the devices Figure 35 External dimensions There are four M3 threaded holes in the bottom that can be used to screw the optionally supplied DIN rail adaptor either in horizontal or vertical position ...

Page 47: ...length If the screws used are too long you may damage the internal electronic board 7 2 Electrical Specifications 7 2 1 Power Power voltage input 12 to 24 Vdc Standby consumption 3 W Maximum consumption 35 W Power jack connector 2 1 x 5 5 mm Positive in center pin PoE power options according to IEEE 802 3af PoE Power options according to the IEEE 802 3at 7 2 2 Ethernet Network Interface 10 100 Bas...

Page 48: ...utput depending on power supply Stereo 8 Ω Mono 4 Ω Supply Voltage 2 x 7 W 14 W 12 Vdc PoE PoE 2 x 15 W 30 W 24 Vdc Frequency response 20 Hz 20 kHz Dynamic range 90 dB SNR THD 90 dB 0 07 7 2 4 Contacts Connector 10 pole pressure terminal for 0 5 mm 2 wires Inputs Opto isolated polarized at 5V with surge protections Ouputs Relays with 3 contacts NO NC 7 3 Environmental conditions Extended temperatu...

Page 49: ...EL Network Audio EQUIPOS DE TELECOMUNICACIÓN OPTOELECTRÓNICOS S A Polígono de Malpica calle F Oeste G Quejido N 74 50057 ZARAGOZA SPAIN Tel 34 976 570 353 Fax 34 976 571 383 www ena equitel es www equitel es ...

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