Ingenieurbüro Mulka DAB-XPlorer User Manual Download Page 58

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Ingenieurbüro Mulka

The world of bit streams is our business.

– Ingenieurbüro Mulka

6.6 Troubleshooting

6.6.1 Error during start-up

If you start the DAB-XPlorer application and no licensed device is connected, you get the
following message within the Main Window. In this case make sure that a device is
connected and, respectively, a valid license file is installed.

Figure 49

– DAB-XPlorer main window before licence activation

6.6.2 No audio output

Go to the main application window into the tab

Ensemble

and check the button

Chose an audio service from the service list.

Check if the audio output is muted by your operating system or if it is switched off by your
computer hardware.

6.6.3 The decoder does not work in Playback mode

If the

Decoder

panel shows a red

G.703 » NO SYNC

whilst the player is running, check the

Loopback settings.

6.6.4 I have found a bug!

Please send your bug report to

[email protected]

. Your feedback is important for the further

improvement of the software and very welcome!

Summary of Contents for DAB-XPlorer

Page 1: ...Ingenieurbüro Mulka The world of bit streams is our business Version 2018 10 DABRF RM DABRF HWU DABXP HWU DAB XPlorer User Manual Getting Started ...

Page 2: ... Address Ingenieurbüro Sven Mulka Gostritzer Straße 146 01217 Dresden Germany AVT Audio Video Technologies GmbH Nordostpark 91 90411 Nürnberg Germany Phone Phone 49 351 40 35 05 00 49 911 5271 0 Fax Fax 49 351 40 35 05 05 49 911 5271 100 E mail E mail info ib mulka de info avt nbg de Website Website www ib mulka de www avt nbg de All information provided in this document is subject to change witho...

Page 3: ...C Multiplex Analyser 26 5 2 3 Option DABXP OXT FIC XTractor 32 5 2 4 Option DABXP OPL DAB Plus Decoder FEC and Streaming 33 5 2 5 Option DABXP OCO RDI ETI Converter 34 5 2 6 Option DABXP OPR PRBS Analyser 36 5 2 7 Option DABXP OCC GPS Campaign Converter 37 5 2 8 Option DABXP OTR Triggered Recorder 39 5 3 Examples of use cases and configurations 40 5 3 1 ETI analysis for broadcasters 40 5 3 2 Trans...

Page 4: ...racteristics 59 A 1 DABXP HWU 59 A 2 DABRF HWU 60 A 3 DABRF RM 61 Appendix B Ordering Information 63 B 1 Hardware components require additional software options 63 B 2 DABRF specific software options 64 B 3 Software options require one of the hardware components 65 Appendix C Software License Agreement 67 CE Conformity 71 CE Conformity 73 ...

Page 5: ...cates danger of electric shock For reasons of security these instructions must be followed by all means Attention Indicates very important advice that is absolutely to observe In case of non observance malfunctions and even system errors are possible Important Note Indicates instructions which make sense or are very useful for the usage of the device or the software 1 2 Read the documentation Befo...

Page 6: ...competent and authorised users only The unit must be operated in good working order only The device must be protected from water The device may only be installed in indoor rooms The device may only be cleaned with a dry cloth Any conversions or alterations to the unit or to parts of the unit including software must be carried out by trained personnel authorised by the manufacturer Any conversions ...

Page 7: ...grated into racks or systems the disconnecting device must be provided at the system level When mounting the unit please keep in mind that the bending radius of the connected cables is always greater than the minimum allowed value It must also be ensured that the power supply unit of the DABRF HWU or the power cable of the DABRF RM are installed close to the equipment and are easily accessible DAB...

Page 8: ...al damage to the environment and health The device contains valuable raw materials that can be reused Therefore return the appliance to an appropriate collection point Detailed information on the disposal of your old appliances can be obtained from your local authority your waste disposal service the specialist dealer where you purchased the product or your sales contact These statements apply onl...

Page 9: ...er software suite supports and can be delivered with ETI RDI to USB converter DABXP HWU and DAB test receiver and modulator DABRF HWU or DABRF RM all three from Ingenieurbüro Mulka In addition the DAB XPlorer software suite supports all Ethernet interfaces that can be used to receive EDI data streams DAB test receiver UEB400DXP provided under the trademark VAD and products of VDL s DABSTOR family ...

Page 10: ...der FIC XPlorer FIC XTractor PRBS Analyzer RDI ETI Converter GPS Campaign Converter Ensemble Viewer Message Viewer Recorder Player Named Pipe ETI RDI EFCO EDI Musicam Decoder DAB Decoder DMB Decoder Analyzer s Analyzer s Analyser s Triggered Recorder EDI ETI EDI RDI EFCO ETI EDI EFCO EDI KML Hardware Software Module Software Core ETI RDI EFCO EDI RF OUT Figure 1 Summary of components of the DAB XP...

Page 11: ...are implemented in one powerful DSP and one FPGA A gigabit Ethernet interface and 512 MByte internal memory enable a wide band connection between the DABRF and a PC or other external system components The so created device is versatile and suitable for other applications as well Since 2016 the DABRF replaces the established DAB test receiver UEB400DXP within the DAB XPlorer family of DAB analysing...

Page 12: ...or hardware control and configuration Analyser Description of the Analyser option with ETI XPlorer and FIC XPlorer FIC XTractor Description of option FIC XTractor for detailed analysis of the Fast Information Channel PRBS Analyser Description of option PRBS Analyser that serves for detailed examination of bit errors within the data stream RDI ETI Converter Description of a software option to conve...

Page 13: ...essential requirements of article 3 2 of Directive 2014 53 EU ETSI TS 103 461 Digital Audio Broadcasting DAB Domestic and in vehicle digital radio receivers Minimum requirements and Test specifications for technologies and products ETSI EN 300 797 Digital Audio Broadcasting DAB Distribution interfaces Service Transport Interface STI EN 50248 2002 Characteristics of DAB receivers EN 50255 DAB recei...

Page 14: ...graphic data from the GPS receiver ETI Ensemble Transport Interface ETS 300 799 transmission protocol between DAB ensemble multiplexer and DAB transmitter FIB Fast Information Block part of the FIC comprises a maximum of 30 bytes payload FIGs and 2 bytes check sum CRC FIC Fast Information Channel control channel of the DAB ensemble includes the multiplex configuration and service information FIG F...

Page 15: ...eir appropriate ordering information 5 1 Hardware 5 1 1 DABXP HWU Figure 2 DABXP HWU The DABXP HWU also called DAB XPlorer device converts an incoming data stream from G 703 or SPDIF to USB for recording and further processing on an attached PC In the opposite direction ETI streams can be put out via a G 703 interface It serves for the analysis of data streams in DAB networks supporting the Ensemb...

Page 16: ...place of application of the DABXP HWU is typically at the interface between Ensemble Multiplexer and COFDM Modulator or at the Receiver Data Interface RDI of a suitable DAB receiver Due to its small size and low weight the DABXP HWU is especially well suited for the portable use The robust device was made to withstand the rugged application conditions of service technicians workaday Front View Fig...

Page 17: ...f data DAB XPlorer PC Info LED red Indicates errors or alarms at the DAB XPlorer Back View Figure 5 Back view of the DABXP HWU Component Description G 703 TX G 703 output HDB3 encoded BNC plug in connector 75 Ω G 703 RX G 703 input HDB3 encoded BNC plug in connector 75 Ω 1PPS IN Input for time reference BNC plug in connector 75 Ω TTL level RDI IN S PDIF input corresponding to RDI standard optical ...

Page 18: ...m the DAB signal can be captured as EDI files and converted to ETI data streams with the software option RDI to ETI Converter Such test patterns can be employed for the verification of DAB receivers and the final inspection of transmitters Using the measured data of the integrated GPS receiver it is possible to calculate the time jitter of a DAB signal In doing so the synchronism of a single frequ...

Page 19: ...usage of that button depends on the running application LED GPS LED red green A flashing red colour indicates the proper operation of application A flashing green colour indicates the 1PPS pulse LED INF LED orange The usage depends on the running application LED RX LED yellow The usage depends on the running application LED TX LED yellow The usage depends on the running application LAN Gigabit Eth...

Page 20: ...ack view of the DABRF HWU Component Description RF IN SMA connector 50 Ω Serves as RF input for signals in VHF band III as well as for signals in the L band GPS IN SMA connector 50 Ω Serves as RF input of the integrated GPS receiver RF OUT SMA connector 50 Ω Serves as RF output of the integrated DAB modulator ...

Page 21: ...ployed for the verification of DAB receivers and the final inspection of transmitters Using the measured data of the integrated GPS receiver it is possible to calculate the time jitter of a DAB signal In doing so the synchronism of a single frequency network SFN can be validated In addition the DABRF RM is able to modulate DAB signals based on up to four EDI or IQ streams Front View Figure 10 Fron...

Page 22: ... usage of that button depends on the running application B2 Auxiliary Button 2 The usage of that button depends on the running application LED GPS LED red green A flashing red colour indicates the proper operation of application A flashing green colour indicates the 1PPS pulse LED INF LED orange The usage depends on the running application LED RX LED yellow The usage depends on the running applica...

Page 23: ...al number of the device that shall act as dongle and contains a list of all activated software options In order to allow using the DAB XPlorer software applications as well without the converter or receiver hardware a USB dongle called CodeMeter CM Stick is available for management of the software licensing The USB dongle is also used with DABRF for licensing purpose The CodeMeter CM Stick is a pr...

Page 24: ...SI level FIC BER and MSC BER display of MCI as tree containing all Services Service Components and Sub Channels output of decoded audio MUSICAM sub channels of a selected service via the audio device of the PC recording and playback of the extended EDI streams The Decoder panel gives a summary of the decoded data stream and of the position within the time shift buffer similar to the control of a T...

Page 25: ... Recorder panel you can control the recording of the received multiplex The GPS RS panel gives an overview of the quality of GPS reception Extended EDI format The EDI stream of DABRF uses EDI tags to embed some metrics e g RF level GPS time and position Spectrum CIR MER Constellation Viterbi error rates ...

Page 26: ...information saved within the EDI file The Ensemble panel gives a summary of the decoded ensemble with its services and sub channels The gauge on the right displays the audio level of a selected audio service 5 2 2 DABXP BASIC Multiplex Analyser For deeper analysis additional tools are available as part of the DABXP BASIC Option They extend the main application by the following components for analy...

Page 27: ...ored in a log file The Messages panel provides filtering functions to find particular events Figure 15 Messages panel Hidden Columns The Messages panel contains some hidden columns Type Date UTC Event which can be enabled by the mouse Go with the mouse pointer over the column headers if the mouse pointer changed from a single line to a double line then you can select and drag the column to change ...

Page 28: ...ing of ETI EDI RDI or EFCO data streams and checks them for compliance with the DAB standards Irregularities will be logged as events within a log file counted and displayed in various tables of the graphical user interface 1 The naming of this window comes from the history of the DAB XPlorer application refer to section 0 Actually it could be named Multiplex Analyzer as well ...

Page 29: ...D size in CUs bit rate Protection Level and labels of linked Service Components or Services display of the content types of sub channels MPEG Audio Layer II DAB audio according to MPEG 4 HE AAC v2 DMB video Packet Mode Enhanced Packet Mode Stream Data counting and display of errors per sub channel per Sub Channel display of the temporal position of the received Null symbol compared with the 1 PPS ...

Page 30: ...n The receiver measures the temporal position of the received RF signal gained by a comparison of the Null symbol with the 1 PPS signal from the GPS receiver The measured value has to be unique for all transmitters within the same SFN and it has to be stable over the time The synchronism of the SFN can be checked by a comparison of the measured values on all transmitter sites Figure 18 ETI XPlorer...

Page 31: ...e screenshot 17 seconds FIC XPlorer window Figure 19 FIC XPlorer The FIC XPlorer decodes the Fast Information Channel FIC and collects received FIGs over a configurable number of frames in a database Various lists and a tree view show the Multiplex Configuration Information MCI and important parts of the Service Information to give you a fast overview over the ensemble ...

Page 32: ...es the FIC and displays the results according either to their chronological order frame by frame or to their FIG type and extension A chosen FIG will be presented in a tree like view where the FIG according to the DAB standard will be resolved into its elements Moreover the binary patterns of these elements will be translated into a form readable by men this may be a text string a date as in FIG 0...

Page 33: ...rs in DAB streams display of errors in Fire code RS code and AU CRCs analysis of errors in DMB streams display of errors in RS Code analysis of errors in Enhanced Packet Mode streams display of errors in RS code and Packet CRCs streaming of all sub channels via UDP TCP or named pipes to external decoders decoding of EDI streams coming in via UDP TCP or as file Figure 21 New functions for EDI analy...

Page 34: ...a COFDM modulator in the lab Figure 22 illustrates the tool chain used in the conversion process The real converter is only one block in this chain In fact in addition to the raw conversion of RDI or EFCO files into ETI NI or ETI NA files the software tool provides the following additional functions for extraction logging replacement and post processing input formats EFCO RDI EDI ETI LI ETI NI ETI...

Page 35: ...equency insertion of CRC or frame errors During the conversion the RDI ETI Converter performs a complete analyse of the input data stream This analysis is similar to that accomplished by the real time analyser used in DABXP BASIC The analytical result will be provided in a text frame on the GUI and as XML file The latter can be very helpful to document the data stream ...

Page 36: ...pseudo random binary sequences PRBS Then the tool measures the true bit error rate within these sub channels and displays the measuring result with a delay of less than one second Additionally the software displays the position of the bit errors within the frame and the pseudo bit error rate provided by the DAB receiver You can save the results of the measuring into an XML file This file contains ...

Page 37: ...on states as well as data from the integrated GPS receiver time position and the complete content of the multiplex The GPS Campaign Converter decodes all audio sub channels from the input file to gain audio quality information RS BER header CRCs scale factor CRCs Then it puts everything together into a KML file that you can open in Google Earth for presentation Since the KML file is an XML file it...

Page 38: ...Ingenieurbüro Mulka The world of bit streams is our business 2018 Ingenieurbüro Mulka 38 Figure 25 Visualisation of the resulting KML file in Google Earth ...

Page 39: ... is desirable to have the possibility to record the ETI stream that provokes such erroneous transmitter behaviour The Triggered Recorder serves for the event triggered recording of ETI data streams Figure 26 shows the principle The setup requires both the DAB XPlorer hardware for ETI recording and a DABRF or UEB400DXP receiver for quality measuring The DABRF or UEB400DXP receives the RF signal fro...

Page 40: ...at the output of the transport multiplexer or at the transmitter input see Figure 3 on page 16 Use the recorder function the log files and the copy function for documentation and error reporting Use the FIC XTractor to clear up complex problems in the interaction of your multiplexer configuration and consumer receivers 5 3 2 Transmitter setup Setup DABXP HWU DABXP BASIC DABRF HWU or DABRF RM DABRF...

Page 41: ... DABRF RX DABRF PC Use Choose one transmitter of your network as reference for the timing of the whole SFN Measure the parameter Time Position and press the Resume button to copy the value into the field Reference in the SFN panel of the ETI XPlorer window Visit every transmitter within your network and check if Deviation is zero or equal to the wanted additional delay of the transmitter under tes...

Page 42: ...on to catch a DAB multiplex from an on air signal Afterwards use the RDI ETI Converter to convert the recorded EDI file into an ETI NI or NA file Use the DAB XPlorer to replay the so prepared ETI file into the input of your transmitter under test 1 Replace the sub channel content by pseudo random binary sequences Together with the PRBS Analyser you can use the so prepared ETI files to assess the c...

Page 43: ...e system drive approximately 1 GByte for operating protocol log files and data recordings in the user directory Graphics card graphics card with DirectX 9 0 support Display resolution 1024 x 768 pixels Mouse standard mouse two key wheel mouse recommended USB host one free USB host interface USB A port version 2 0 high speed data rate for DABXP HWU or UEB400DXP Ethernet one free Ethernet port recom...

Page 44: ...e CD drive 4 Start the installer program DAB XPlorer x x x x setup exe 5 Follow the instructions of the install wizard The installation program will first check whether the required version of the operating system is available After a successful check of the version you can select a language for the installation process Figure 27 Language selection for setup Figure 28 Display of the software to be...

Page 45: ...Figure 29 Software license agreement If you do not agree you will not be able to use the software Figure 30 Information and important advice Subsequently you can select the installation folder although it is recommended to use the default folder ...

Page 46: ...nieurbüro Mulka The world of bit streams is our business 2018 Ingenieurbüro Mulka 46 Figure 31 Selection of installation folder Figure 32 Selection of components Figure 33 Selection of the start menu folder ...

Page 47: ...ortcuts on the desktop Figure 35 Preparation of the installation has now been concluded While the installation process additional wizards for the device drivers will be started Follow the instructions of these wizards Figure 36 Final overview of the current state of the software ...

Page 48: ...ion of the user software and the pre installation of the drivers have been successfully concluded you can now connect your DAB XPlorer or UEB400DXP to the PC by the USB cable enclosed The operating system will recognize the DAB XPlorer or UEB400DXP as a new device and will automatically start a wizard Figure 38 Device wizard select No not now and Next ...

Page 49: ...oftware automatically recommended and Next Figure 40 Driver installation concluded successfully You can check the correct driver installation in the Device Manager of the system administration Start menu Control Panel Administrative Tools Computer Management System Tools ...

Page 50: ...s our business 2018 Ingenieurbüro Mulka 50 Figure 41 Device manager showing the DAB XPlorer DABXP HWU as a new device If the software installation has been successfully concluded you can now start the DAB XPlorer software and activate your license ...

Page 51: ...tallations the activation procedure is described below Start the DAB XPlorer software e g via the desktop shortcut Figure 42 DAB XPlorer main window before licence activation Open the License Manager in the Tools menu Figure 43 License Manger without activated license Select and import the license file on your installation medium using the Import button ...

Page 52: ...cense Manager displaying details This last step concludes the installation you can now begin with the analysis of DAB data streams The license that you have purchased is specific to your device i e the options activated with the license are only able to run on the DAB XPlorer UEB400DXP or CM Stick with the same serial number According to the license agreement you are however entitled to install th...

Page 53: ...cal network e g for a second Ethernet port Each DABRF has a label on the bottom side or rear side which contains the serial number and the MAC address The DABRF uses DHCP services to request a valid IP address from the network After them the three lower bytes of MAC address will be used to generate an individual device name which will be registered in the DNS Figure 46 Dashboard of DABRF web front...

Page 54: ...me browser Figure 47 Metrics of DABRF web frontend Via the Web frontend you are able to change the frequency or DAB channel For that click in the frequency or channel field a dialog will be popped up To access the DABRF via DAB XPlorer software you need to define an alias via the Connection Manager in the Tools menu For the above device dabrf f22dac you have to use the following parameters ...

Page 55: ...t URI tcp dabrf f22dac 1410 Figure 48 Connection Manager with some Aliases After input the alias definition you have to press the Apply button After them the DABRF device is selectable as an IP based device in the device panel of DAB XPlorer main window e g IP dabrf f22dac ...

Page 56: ... information DXP Control panel serves for configuration of the DAB XPlorer device UEB400DXP panel serves for configuration of the UEB400DXP device and the display of the UEB400DXP specific status information DABRF panel serves for configuration of the DABRF device and the display of the DABRF specific status information GPS RX panel serves the display of the GPS receiver specific status informatio...

Page 57: ...functions to inspect and edit the DabLog XML KML and DabCfg files Copying table content Try using the right mouse button on any of the tables in the GUI or simply press CTRL C to copy the table content into the clipboard Paste the content into a plain text file and enjoy Familiarise yourself with the time shift buffer The time shift buffer opens interesting additional opportunities in some applica...

Page 58: ...ndow before licence activation 6 6 2 No audio output Go to the main application window into the tab Ensemble and check the button Chose an audio service from the service list Check if the audio output is muted by your operating system or if it is switched off by your computer hardware 6 6 3 The decoder does not work in Playback mode If the Decoder panel shows a red G 703 NO SYNC whilst the player ...

Page 59: ...ed BNC female 75 Ω S PDIF input optical TOSLINK input 1PPS input BNC female 75 Ω TTL for synchronisation to GPS for future use or as electrical S PDIF input RS232 DTE SUB D plug in connector 9 pole RS232C without hardware handshake for debugging purpose General Case Aluminium black and red anodized Dimensions 110 x 106 x 30 mm3 without connectors Weight 500 g Supply voltage 5 V USB powered max 100...

Page 60: ...ns 110 x 176 x 30 mm3 without connectors Weight 415 g Supply voltage 12 VDC lower than 20 W power consumption Operating temperature 5 C 40 C RF IN Input impedance 50 Ω VSWR 2 0 Input level range2 95 dBm 0 dBm Input frequency range 174 928 MHz 239 200 MHz 1452 816 MHz 1491 184 MHz Tuning step size 1 kHz Adjacent channel selectivity2 40 dB Overall selectivity2 60 dB RF OUT Output impedance 50 Ω VSWR...

Page 61: ...rs Weight 2 350 g Supply voltage 100 V 230VAC lower than 30 W power consumption Operating temperature 5 C 40 C RF IN Input impedance 50 Ω VSWR 2 0 Input level range3 95 dBm 0 dBm Input frequency range 174 928 MHz 239 200 MHz 1452 816 MHz 1491 184 MHz Tuning step size 1 kHz Adjacent channel selectivity3 40 dB Overall selectivity3 60 dB RF OUT Output impedance 50 Ω VSWR 2 0 Output level range 100 dB...

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Page 63: ... B cable DABRF HWU DAB DMB test receiver and modulator DAB receiver and modulator stationary antenna for VHF band III and L band magnetic antenna for VHF band III and L band integrated GPS receiver active GPS antenna wall power supply 230V AC to 12 V DC CAT 6 Ethernet cable DABRF RM DAB DMB test receiver and modulator in 19 housing DAB receiver and modulator stationary antenna for VHF band III and...

Page 64: ...DABXP OPL PC software for configuration tuning scanning receiver status FIC BER MSC BER RSSI level recording as EDI IQ or IQX files local playback of IQX EDI ETI EFCO RDI files ensemble overview with a tree of services sub channels and SCs decoding of the selected audio sub channel MUSICAM ETI XPlorer FIC XPlorer Messages Viewer DAB Audio Decoder incl VIA license analyzing of errors within the DAB...

Page 65: ... extracting of the FIC or sub channel content changing of DAB transmission mode replacement of labels and sub channel content by file content replacement of sub channel content by PRBS insertion of bit or frame errors DABXP OPL Option DAB FEC Streaming DAB audio decoder analysis of FEC sub channel streaming EDI decoder DAB audio decoder incl VIA licence analysing errors within the DAB Fire Code RS...

Page 66: ...analyser frame oriented list of received FIGs FIG list sorted by type or extension database oriented list of received FIGs all doublets are removed from the view gets statistic of the FIGs tree view of the decoded FIG DABXP OCC Option GPS Campaign Converter Converter of EFCO EDI to KML displays the measured data on the map of Google Earth DABXP OTR Option Triggered Recorder ETI recording triggered...

Page 67: ...f this agreement objection in written form to be submitted to IB Mulka within 14 days upon purchase of the software he she is not entitled to use the software or any parts of it the purchased software must be deleted by the licensee or an agent of the licensee for example a provider If the software was bought from the IB Mulka then purchase price will be refunded by IB Mulka after the proof of del...

Page 68: ...cquire any copyrights as to the software itself IB Mulka reserves any software rights particularly with respect to publication duplication development and commercialization 7 Demo Version Should the enclosed data carrier the program itself or parts of the program be marked as a demo version the user is only entitled to apply the software exclusively for evaluation reasons in the framework of this ...

Page 69: ...right to remedy the defects for three times or in the case of a final failure of such remedy to grant to the licensee the right to cancellation or price reduction at his her choice A right to cancellation or reduction will only be granted to the licensee if a program defect will prove to be substantial and essential for the entire performance and if such defect cannot be neutralized through other ...

Page 70: ...ese measures liability of IB Mulka is excluded Should IB Mulka provide any fault clearing services due to a malfunction indicated by the licensee IB Mulka is entitled to charge the licensee for the time required according to the respectively valid hourly rates if it will turn out that either there has been no malfunction or that exclusively the licensee has been responsible for the malfunction for...

Page 71: ...lectrical equipment for use within defined voltage limits 2014 35 EC LVD relating to electromagnetic compatibility 2014 30 EC EMCD relating to making available on the market of radio equipment 2014 53 EU RED relating to restriction of the use of hazardous substances in electrical and electronic equipment 2011 65 EC RoHS Conformity is proven by compliance with the following standards EN 61010 1 201...

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Page 73: ...g to electrical equipment for use within defined voltage limits 2014 35 EC LVD relating to electromagnetic compatibility 2014 30 EC EMCD relating to restriction of the use of hazardous substances in electrical and electronic equipment 2011 65 EC RoHS Conformity is proven by compliance with the following standards EN 61010 1 2010 EN 55032 2012 EN 61326 1 2013 EN 61326 2 1 2013 ETSI EN 303 345 ETSI ...

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