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HAPTER

3: C

ONFIGURING

THE

AXN

SYSTEM

Maximum Balance defines the required headroom to be applied on top of the user-specified range for each

channel. The setup software sets instrumentation amplifier gain to allow for the required headroom. Ensure you do

not define a maximum balance that pushes the channel outside the range of the instrumentation amplifier. The

Maximum Balance unit is input mode dependent; it is expressed in volts for differential ended, single ended, full-

bridge, half-bridge, AC coupled, and ICP modes. For Thermocouple and RTD modes, the range is in Celsius.
Balance Target defines the value the balance process attempts to adjust the channel counts to match. The

Balance Target unit is input mode dependent, it is expressed in volts for differential ended, single ended, full-

bridge, half-bridge, AC coupled and ICP modes. For Thermocouple and RTD modes the range is in Celsius.

Enabling/disabling shunt resistors

The AXN/ADC/401 supports shunt resistors per channel. These are 100 kΩ resistors that can be switches between

inputs and ground. These resistors are classically used to test bridge operations pre-flight, but may also

be used for ground reference when the input to the module channel is isolated from the module ground.

Configuring the AXN/ADC/401 for differential ended inputs

Set the channel range to cover the range of the measurement you want.

OTE

This applies to all filter tap points for that channel.

Содержание AXN

Страница 1: ...AXN Quick Start Kit User Guide ...

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Страница 3: ...te 7 Connecting the Axonite to the chassis 7 Disconnecting the Axonite from the chassis 8 Grounding the AXN chassis 9 Star point 9 AXN isolated grounds 9 GND 9 CHASSIS 9 POWER 9 AXN grounding 10 Validating grounding 10 Cables and shielding 11 Incorrect configurations 12 Connecting the laptop to the AXN chassis and logging in 13 CONFIGURING THE AXN SYSTEM 15 Configuring the AXN system with DAS Stud...

Страница 4: ...of specific ARINC 429 words 52 Installing the Axonite 57 Setting the IP address of the AXN controller 57 Creating packets and sampling data 58 Verifying the task file 62 Programming instrumentation 63 Real time viewing of data 65 Balancing analog channels using Bridge Balancer 67 ...

Страница 5: ... formats in line with the TTC networked products such as DARv3 and IRIG 106 Ch10 UDP format support TmNS will be supported in the future Figure 1 AXN and ADAU 9 user slot chassis Regardless of the platform flight test programs commonly face the following challenges Ensuring all data is captured Compressed time scales for test campaigns Instrumentation system installation challenges Dealing with ne...

Страница 6: ...Axonites Axonites can be placed up to 10 meters 33 feet from the chassis and are powered by the chassis through a 6 wire interface to the backplane via an extender card placed in the user slot of the chassis The 6 wire cable consists of 2 x TX 2 x Rx and 2 x power wires Axonites can house any AXN user module and offer greater heat dissipation in hot zones due to the greater relative surface area f...

Страница 7: ... AXN Quick Start Kit User Guide The AXN Quick Start Kit User Guide is intended for engineers who need to set up and evaluate an AXN system Unpacking and checking the contents Remove all contents from the package and confirm that the following items are included AXN CHS 09U 9 user slot Axon chassis containing the following modules Slot 0 AXN BCU 40x Axon backplane controller Slot 1 AXN ABM 401 Axon...

Страница 8: ...d to return the product or ship it to another location WARNING Always ensure that proper ElectroStatic Discharge ESD precautions are in place before handling or storing Curtiss Wright equipment See the Axon Handling Precautions document Registering for technical updates Curtiss Wright issues a monthly bulletin which provides updates on software versions and documentation changes To register for th...

Страница 9: ...product family chassis consists of a power supply unit high speed backplane and the single piece milled AXN box Figure 5 Major components of Axon product family chassis Axonite The Axonite is a 1 user slot remote chassis that allows any AXN user module to be placed up to 10 meters 33 feet from the chassis It offers better heat dissipation for hot zones and is designed to fit into compact spaces Th...

Страница 10: ...upply Unit PSU The AXN backplane controller module ships already installed in slot 0 of the chassis For all chassis user slots are numbered in ascending order starting with slot 1 next to the backplane controller slot 0 The following figure shows slot numbering for a 16U chassis Figure 7 16U chassis slot numbering As shown in the following figure each slot has grooves into which the guide rails on...

Страница 11: ...xonite to the extender card with the supplied cable Connecting the Axonite to the chassis 1 Disconnect the power cable from the chassis 2 Insert the extender card AXN EXT 401 into the chassis Refer to the Axon Handling Precautions document 3 Connect the Axonite cable AXN CAB 001 01M backshell to the extender card top block 4 Tighten the screws to torque 0 6 Nm 0 44 foot pound force Guide rail groo...

Страница 12: ... dot on the cable connector Ensure the dots are aligned and then connect the cable to the Axonite 6 Power on the chassis The power LED on the Axonite lights Disconnecting the Axonite from the chassis 1 Disconnect the power cable from the chassis 2 Confirm the power LED on the Axonite is off White alignment dots Power LED on Power LED off ...

Страница 13: ...fferenti ate it from the physical AXN chassis metal work GND GND is the zero volt line that all AXN internal signal conditioning modules use All input and output signals on AXN modules are referenced to this potential This signal point is normally taken out to the connector on the top of each AXN module if available and is usually pin 51 The GND point is also available on the AXN Power Supply Unit...

Страница 14: ...e ground mounting bolt on the PSU instead of the CHASSIS pin A common cable should not be used to take more than one of these signals to the star point NOTE When more than one AXN is used each AXN should be connected to the star point using individual cables Shared cables should not be used Figure 9 Axon product family grounding Figure 10 Grounding for multiple chassis Validating grounding After c...

Страница 15: ...tive method is to use a short pig tail and take this to the CHASSIS pin on the AXN connector This method is acceptable but it is not the preferred method as it may result in a short length of unscreened signal cable Signal cable shields should ideally only terminate at the AXN end Bus cables may terminate at both ends as stated in the relevant bus specification document Figure 11 Shielding Curtiss...

Страница 16: ...ns Incorrect AXN grounding Any two or all three of the ground station signals should not share a common cable to the star point as shown in the following two figures Figure 12 POWER return and GND using the same ground Figure 13 POWER return CHASSIS and GND using the same ground ...

Страница 17: ...thernet 2 on the Laptop pre configured to IP address 192 168 28 100 4 Connect the AXN BCU to dual RJ 45 cable AXN CON 002 to the BCU in slot 0 of the chassis and then tighten the thumbscrews to 0 6 Nm 0 44 foot pound force torque 5 Connect one end of the Ethernet cable AXN CON 007 to the RJ45 adapter on the BCU connect the other end to the RJ45 adapter on the laptop 6 Connect the power cable CON P...

Страница 18: ...This page is intentionally blank ...

Страница 19: ...o build a system configuration by detecting existing Curtiss Wright hardware Detected hardware is analyzed and a XidML task file is generated with default hardware settings and parameters 1 Open DAS Studio 3 from the desktop A new XidML 3 0 file named NewConfiguration xidml is automatically created 2 On the File menu click Discover 3 In the Hardware Discovery dialog box select IP Address then righ...

Страница 20: ...16 AXN Quick Start Kit User Guide BK 0045 9 Aug 2021 3 5 Click Run Discovery When Discovery is complete the following message appears ...

Страница 21: ...dware is listed in the Status Information pane 7 Click Save File to save the configuration file The following section describes manually creating the same configuration task that we used Discover to create in this section You can skip the following section and go to Configuring the Axon controller on page 23 ...

Страница 22: ...troller Slot 1 AXN ABM 401 Axon 24 channel ARINC 429 bus monitor packetizer Slot 4 AXN EXT 401 Axon extender module Slot 8 AXN ADC 401 The 8 channel flexible analog module Refer to the following to manually create a task file that matches the factory shipped hardware configuration In the following example an AXN BCU 401 controller is shown in the screen shots for illustration You should choose the...

Страница 23: ...nts Palette opens 3 On the DAU tab select MyAXN_CHS_09U and click Add The overview node and the chassis are added in the Navigator Slot 0 is the backplane controller AXN BCU 40x slot only the AXN bus controller can be added to this slot Overview node ...

Страница 24: ...k Start Kit User Guide BK 0045 9 Aug 2021 3 4 Double click slot 0 Instruments Palette opens 5 On the Ethernet tab select MyAXN_BCU_401 and click Add The backplane controller MyAXN_BCU_401 is added in the Navigator ...

Страница 25: ... AXN extender card AXN EXT 401 is installed in slot 4 of the actual chassis hardware However the extender card and the Axonite chassis AXN ITE 01U that connects to it are transparent to the software Therefore they are not added to the configuration file When you install a user module in the Axonite it is shown in the software as though it were installed directly in slot 4 of the chassis See Instal...

Страница 26: ... Double click slot 8 Instruments Palette opens 9 On the Analog tab select MyAXN_ADC_401 and click Add The AXN flexible analog module MyAXN_ADC_401 is added in the Navigator 10 On the File menu click Save As choose a location and file name and then click Save ...

Страница 27: ...from all AXN user modules in the chassis transmitting the data over its dual 1000BT Ethernet ports It acts as a time master of all modules in the chassis taking time from IEEE 1588 PTPv1 or PTPv2 Grandmaster and synchronizing all user modules in the chassis It is also capable of acting as a PTPv1 or v2 Grandmaster itself synchronizing other DAUs in the system to the correct time It also contains a...

Страница 28: ... link status of both ports Health bits of the AXN BCU 40x process and Event triggers See the data sheet for details ReadCounter P_MyAXN_BCU_401_Read Counter This parameter is a test register that increments every time it is read PTPTime P_MyAXN_BCU_401_PTP Time PTP time is available over 3 parameters By default the full PTP time is avail able from P_MyAXN_BCU_401_PTPTime This is a 64 bit parameter...

Страница 29: ...chassis that the AXN BCU 40x is controlling See the data sheet for details EthernetStatus P_MyAXN_BCU_401_Ether netStatus This parameter indicates the status of both Ethernet ports See the data sheet for details Parameter Type Name Description BackplaneVoltage P_MyAXN_BCU_401_Back planeVoltage This parameter indicates the current level of the 15V backplane voltage BackplaneMasterCurrent P_MyAXN_BC...

Страница 30: ...fic coming in on one port from going out on the other port can be set by enabling the Block Traffic From Other Port setting Be default any Ethernet packets generated by the AXN BCU 40x or any user modules in the same chassis are transmitted out of both ports simultaneously To restrict chassis traffic to only come out of one of the ports enable the Block Traffic From Chassis setting on that port Th...

Страница 31: ...self out of PTP sync and indicates this in the Report parameter The Synchronization Level range is from 500 to 10000 ns Setting the PTP mode The AXN BCU 40x supports the following PTP protocols in both client and Grandmaster modes PTPv1 PTPv2 end to end mode PTPv2 peer to peer mode Setting the AXN BCU 40x as a PTPv1 client 1 Set the PTP protocol to PTPv1 2 Select the PTPv1 Subdomain 3 Set the PTPv...

Страница 32: ...d PTP Grandmaster Setting the AXN BCU 40x as a PTPv1 Grandmaster 1 Set the PTP Protocol to PTPv1 2 Enable PTP Grandmaster 3 Configure the PTPv1 settings above as required When acting as a PTPv1 Grandmaster with the Preferred Grandmaster enabled the AXN BCU 40x PTPv1 sync messages will have the Preferred Grandmaster bit set Setting the AXN BCU 40x as a PTPv2 end to end client 1 Set the PTP Protocol...

Страница 33: ...r 5 Set the PTPv2 Priority to match the Priority setting of your PTPv2 Grandmaster Setting the AXN BCU 40x as a PTPv2 peer to peer client 1 Set the PTP Protocol to PTPv2 Delay P2P 2 Set the PTPv2 Subdomain to the required value 0 255 3 Set the PTPv2 Announce Interval to match the announce interval of the PTPv2 Grandmaster ...

Страница 34: ...TPv2 Grandmaster Setting the AXN BCU 40x to act as a PTPv2 Grandmaster in end to end or peer to peer modes To set up the AXN BCU 40x as a PTPv2 Grandmaster in either end to end or peer to peer modes set the PTP protocol to the desired PTPv2 version and enable the PTP Grandmaster Setup the PTPv2 settings as required above For sampling and packaging data see Creating packets and sampling data on pag...

Страница 35: ...f and Filtering Mode Linearization to standard thermocouple or RTD types are supported as are user defined linearization tables per channel Cold junction compensation for thermocouple channels are supported Shunt and bridge completion resistors per channel are on board Fast balancing of analog channels are supported This section explains the major features of the module and how to configure it for...

Страница 36: ...ly The operating range for the channel is applied to all filter tap points and is set by defining the range on filter tap point 0 for each channel The range value is dependent on the input mode selected For differential ended single ended full bridge half bridge AC coupled and ICP modes the range is in volts and limited to 10V For Thermocouple and RTD modes the range is in Celsius and limited to 2...

Страница 37: ... or Voltage excitation Excitation Amplitude is in volts for Voltage excitation and is limited to 0V to 10 2V Excitation is unipolar on the AXN ADC 401 For example to set 5V excitation current set the Excitation Mode to Voltage and Excitation Amplitude to 5 The Excitation Amplitude is in amps for Current excitation and is limited to 0 mA to 32 mA For example to set 2 mA excitation current set the E...

Страница 38: ...The AXN ADC 401 supports fast balancing of analog channels This is explained in Balancing analog channels using Bridge Balancer on page 67 The settings for balance defining the balance target and the balance range is done in DAS Studio 3 and programmed into the module For each channel users must set Balance Options The choices are None Balance is not allowed on this channel previously applied bala...

Страница 39: ...nce process attempts to adjust the channel counts to match The Balance Target unit is input mode dependent it is expressed in volts for differential ended single ended full bridge half bridge AC coupled and ICP modes For Thermocouple and RTD modes the range is in Celsius Enabling disabling shunt resistors The AXN ADC 401 supports shunt resistors per channel These are 100 kΩ resistors that can be s...

Страница 40: ...Modes on page 32 4 Set Excitation Mode to Voltage or Current and set Excitation Amplitude as required See Setting Excitation Mode on page 33 5 If the differential source is isolated from the chassis ground set Classic Shunt on that channel to Enabled Configuring the AXN ADC 401 for single ended inputs 1 Set the channel range to cover the range of the measurement you want NOTE This applies to all f...

Страница 41: ... Filter Cutoff for Input Modes on page 32 4 Set Excitation to Voltage or Current and set Excitation Amplitude as required See Setting Excitation Mode on page 33 Configuring the AXN ADC 401 for full bridge inputs 1 Set the channel range to cover the range of the measurement you want NOTE This applies to all filter tap points for that channel 2 Set the channel Input Mode to Full bridge ...

Страница 42: ...f for Input Modes on page 32 Configuring the AXN ADC 401 for half bridge or potentiometer inputs 1 Set the channel range to cover the range of the measurement you want NOTE This applies to all filter tap points for that channel 2 Set the channel Input Mode to Half bridge NOTE In Half bridge mode the module automatically switches to internal 100 kΩ completion resistors Half bridge mode is also the ...

Страница 43: ...Mode and Filter Cutoff for each filter tap point See Defining Filter Mode and Filter Cutoff for Input Modes on page 32 Configuring the AXN ADC 401 for thermocouple inputs 1 Set the channel Input Mode to Thermocouple 2 Configure Filter Mode and Filter Cutoff for each filter tap point See Defining Filter Mode and Filter Cutoff for Input Modes on page 32 ...

Страница 44: ...5 9 Aug 2021 3 3 Set Excitation Amplitude to 0 4 On the Linearization URL setting for that channel click the drop down arrow and select Add full path 5 Browse to the location of the thermocouple lookup files select a file and then click Open ...

Страница 45: ...the Range Maximum and Range Minimum to the required range for that thermocouple type In this example for a K type thermocouple max min settings would be 1370 ºC to 270 ºC 7 Thermocouples require a cold junction reference which can be configured in one of the following two ways ...

Страница 46: ...sor by selecting the channel required and configuring it to RTD 2 4 Wire as shown below using a range of 125 ºC to 55 ºC See Configuring the AXN ADC 401 for RTD 2 4 wire inputs or RTD 3 wire inputs on page 43 Then set Classic Shunt for this channel to Enabled To use a non standard custom linearization file select the custom file and its compensation channel using the User Compensation URL and User...

Страница 47: ...ifference is when choosing the Input Mode setting 1 In the Input Mode column of the channel you want to configure click the drop down arrow and do one of the following For RTD 2 4 wire input choose RTD sensor 2 4 wires For RTD 3 wire input choose RTD sensor 3 wires 2 Configure Filter Mode and Filter Cutoff for each filter tap point See Defining Filter Mode and Filter Cutoff for Input Modes on page...

Страница 48: ... BK 0045 9 Aug 2021 3 3 Set Excitation Mode to Current and then set the required Excitation Amplitude for your RTD for example 2 mA 4 On the Linearization URL setting for that channel click the drop down arrow and select Add full path ...

Страница 49: ... Set the Range Maximum and Range Minimum to the required range for that RTD type for PT_100_385 in this example this would be 660 ºC to 200 ºC To use a non standard custom linearization file select the custom file and its compensation channel using the User Compensation URL and User Compensation Channel settings similar to the above ...

Страница 50: ...ach filter tap point See Defining Filter Mode and Filter Cutoff for Input Modes on page 32 3 Set the channel range to the required range for the AC coupled input 4 Set Excitation Amplitude to 0 Configuring the AXN ADC 401 for ICP inputs 1 Set the channel Input Mode to ICP sensor 2 Configure Filter Mode and Filter Cutoff for each filter tap point See Defining Filter Mode and Filter Cutoff for Input...

Страница 51: ...orted The AXN ABM 401 also allows you to define rules to control which words are packetized Rules to allow only specific words into the packetizer packets or to block specific words from being packetized are supported The AXN ABM 401 contains a number of module level word count and status parameters The Word count parameters P_MyAXN_ABM_401_ARINC 429 In 0 _WordCount are parameters that count the n...

Страница 52: ...6 bit parameters By default the 32 bit parameter is available To break it down into two 16 bit high and low parameters click the drop down arrow and select Add new parameter New parameters are created For details of the bus active parameters see the data sheet For debug purposes the AXN ABM 401 type number is available from the parameter P_MyAXN_ABM_401_TypeNumber The ARINC 429 protocol allows thr...

Страница 53: ... parity on any bus set Parity Check to Odd or Even for that bus When parity check is enabled on any bus any parity errors on cherry picked specifically defined words are reflected in the Report word of the module In the packetizer the error code for parity error is set in the word info bits to reflect any parity errors Packetizer setup Packetizer packets can be configured to output packetizer pack...

Страница 54: ...it words NOTE Smaller packets fill faster and generate more traffic The Packet Timeout is the number of milliseconds the packetizer waits for new traffic to arrive before it closes and transmits the packet The reason for this setting is that should the ARINC 429 input traffic stop the module does not wait indefinitely for a full packet before transmitting the packet Packetizers work on a no transm...

Страница 55: ... to just that module Set to All the Packetization Sink setting puts identical packetizer traffic out of all sinks in the chassis Set to Controller Only the packetizer packet is only transmitted out of the AXN BCU 40x Set to any individual slot packetizer traffic is restricted to transmitting or recording on the module in that slot It is recommended the Packetization Sink setting is set to All Conf...

Страница 56: ...es are blocked To block specific messages from making it into the packetizer stream for that channel and allow all others set the rule to Block and define rules on that channel To pass specific messages into the packetizer stream for that channel and block all others set the rule to Pass and define rules on that channel Up to 1024 packetizer filter rules can be defined per bus Rules for which word...

Страница 57: ...CHAPTER 3 CONFIGURING THE AXN SYSTEM 53 1 On the Applications menu click ARINC 429 Builder The ARINC 429 Builder dialog box opens 2 Select one of the module channels in the left pane ...

Страница 58: ...essage name and typing the new name The ARINC 429 label rule can be set to any valid Octal ARINC 429 value SDI and SSM settings for this label can be set to All 00 01 10 or 11 4 To enable this definition as a packetizer filter rule select the Packetizer Filter Rule Enabled check box and set Packetizer Filter Mode to Pass or Block NOTE Changing Packetizer Filter Mode on any message defined on a bus...

Страница 59: ...inition select the message hold the Shift or Ctrl key to select multiple messages and click Remove Message NOTE 7 This step only defines the rules to identify the ARINC 429 words To actually read the message defined by this rule you must define a parameter to be read from this message To do this select the message and then click Add Parameter Repeat for each message you want to define ...

Страница 60: ...he parameters you want to add by clicking each parameter s Enable check box Use the Ctrl key to select non contiguous parameters MessageCount is the message count value for this individual instance of this message when it arrived MessageIrigTime48 is a 48 bit time tag parameter the time when this message was received on this bus MessageTimeIrig48 may be broken down into MessageTimeHi MessageTimeLo...

Страница 61: ... in slot 8 of the chassis Figure 15 Moving module from chassis to Axonite Setting the IP address of the AXN controller Refer to the following to update the IP address of the AXN BCU 40x controller module The present IP address and the new IP address are required to update the module 1 On the Tools menu click IP Address The IP Address Programmer dialog box opens This tool supports reprogramming IP ...

Страница 62: ... 1 changes to 192 10 45 56 the PC must move to the 192 10 45 XX subnet IP Address Programmer does not automatically update the IP address in the task file this must be updated manually Failure to update the IP address in the task file to match IP address in the module will cause programming failures Creating packets and sampling data Now that the AXN modules and backplane controller configured the...

Страница 63: ... THE AXN SYSTEM 59 3 Select Ethernet 1 in the Channels pane 4 Click the Import Package button in the Package Properties pane Packages Palette opens 5 Select the iNET X tab and choose MyPlacediNET XPackage and then click Add ...

Страница 64: ...ple packets are defined the acquisition cycle of the chassis is based on the slowest packet out of the AXN BCU 40x For example If two packets are defined both at 10 Hz the acquisition cycle is 10 Hz each parameter in each packet is sampled at the start of the acquisition cycle and any parameters sampled more than once in any packet are sampled at even intervals throughout the 10 Hz cycle If two pa...

Страница 65: ...m all modules in the chassis By clicking the filter icon on any column you can filter to see parameters available from a specific module channel or message 8 Select the parameters you want and click Add Reference The parameters are added to the package and can be viewed in the Content and Placed Data panes ...

Страница 66: ...he Actual Rate setting of one parameter edit Occurrences for that parameter Actual Rate automatically changes to match Changing the Rate setting in Package Properties update the rate on all parameters in that package Verifying the task file Use this tool to verify that the data throughput and sequencing specified in the configuration can be achieved 1 On the Quick Access Toolbar or the Tools menu ...

Страница 67: ...dialog box and locate the error s shown in red text Packetizer packets are automatically generated by the software during verification The AXN BCU 40x Ethernet port on the packages tab now shows packages added for each enabled packetizer channel The package name is based on the module name and the Stream ID for that packetizer channel The rate is automatically calculated based on the bit rate set ...

Страница 68: ...available instrumentation and programs the connected hardware If verification fails programming is not performed and error messages are shown A message box is displayed reporting if programming passed or failed 2 Do one of the following If programming succeeds click OK If programming fails double click the icon to open the Message Server dialog box and locate the error s shown in red text ...

Страница 69: ... C ACRA DASStudio 3 X The XidML file can be used as your input file for Quicklook real time data visualization software Refer to the following to use Quicklook to view and analyze XidML configuration files from DAS Studio 3 1 Launch Quicklook from the start menu 2 Set the Data Source to Acra IENA or iNETX and then click Next 3 Click Next ...

Страница 70: ...ct the All Packages radio button and then click Next 5 In the Network Interface drop down menu select Ethernet and then click Test Connection 6 If three green lights are indicated click Next 7 Select the Create a new Config file radio button and then click Finish ...

Страница 71: ...ta Refer to Quicklook online help for further information Balancing analog channels using Bridge Balancer On the Tools menu of DAS Studio 3 software click Bridge Balancer The Bridge Balancer dialog box opens See Chapter 10 of the DAS Studio 3 User Manual for further steps ...

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Страница 73: ...hout notice This publication may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of Curtiss Wright nor the rights of others Curtiss Wright does not assume any liability arising out of any infringements of patents or other rights of third parties Curtiss Wright makes no warranty of any kind with regard to this ...

Страница 74: ...Curtiss Wright www curtisswrightds com 2021 Curtiss Wright 15 Terry Drive Newtown PA 18940 USA Block 5 Richview Office Park Clonskeagh Dublin 14 Ireland Phone 1 267 352 2020 Phone 353 1 295 1264 ...

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