Racal Instruments 3152 User Manual Download Page 16

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Getting Started 1-7

Figure 1-1

Segment 1 -

Sin(x)/x

Waveform

Figure 1-2

Segment 2 -

Sine Waveform

Summary of Contents for 3152

Page 1: ...k System GmbH Technologiepark Bergisch Gladbach Friedrich Ebert Strasse D 51429 Bergisch Gladbach Germany Tel 49 2204 8442 00 FAX 49 2204 8442 19 Racal Australia Pty Ltd 3 Powells Road Brookvale NSW 2...

Page 2: ...t for service or calibration Call your nearest Racal Instruments support facility A list is located on the last page of this manual If you are unsure where to call contact Racal Instruments Inc Custom...

Page 3: ...defeat the protective feature of the third conductor in the power cord Maintenance and calibration procedures sometimes call for operation of the unit with power applied and protective covers removed...

Page 4: ...5 Triggered Mode 1 5 Burst Mode 1 6 Gated Mode 1 6 Output Type 1 6 Standard Waveforms 1 6 Arbitrary Waveforms 1 6 Sequenced Waveforms 1 7 Output State 1 8 Backplane Synchronization 1 9 Front Panel PL...

Page 5: ...eforms 3 14 Selecting An Operating Mode 3 17 Triggered Mode 3 17 Gated Mode 3 18 Burst Mode 3 19 Selecting the Trigger Source 3 19 Using the Internal Trigger Generator 3 20 Selecting the Trigger Slope...

Page 6: ...ommand Summary 4 12 System Related Command Summary 4 13 IEEE STD 488 2 Common Commands and Queries 4 13 The SCPI Status Registers 4 15 The Status Byte Register STB 4 18 Reading the Status Byte Registe...

Page 7: ...ntrol Checkout 5 18 Clock Synthesizer Checkout 5 19 Sequence Generator Checkout 5 20 PLL Checkout 5 21 Engine Board Circuit Checkout 5 22 Engine Board Checkout 5 22 APPENDIX A Specifications A 1 FIGUR...

Page 8: ...Checkout Procedure 5 17 5 2 Output Amplifier and Amplitude Control Checkout Procedure 5 18 5 3 Clock Synthesizer Checkout Procedure 5 19 5 4 Sequence Generator Checkout Procedure 5 20 5 5 Burst Genera...

Page 9: ...3152 WAVEFORM SYNTHESIZER OUTPUT 50 SYNC OUT TTL TRIG PLL IN 30 V MAX CLOCK IN ECL PM IN 30 V MAX R M S vi 3152 Front Panel...

Page 10: ...ms with sampling rates to 100 MHz at 12 bits of vertical resolution Despite its small size the Model 3152 offer many features and functions such as VXIplug play compatibility backplane phase synchroni...

Page 11: ...lifier completes the task by amplifying or attenuating the signal at the output connector The Model 3152 is fully programmable using SCPI commands and syntax There are two ways to program the Model 31...

Page 12: ...y and stability grades of the internal 10 MHz reference clock Normally VXIbus modules receive their clock reference from VXIbus CLK10 There are applications that require complete separation from VXIbu...

Page 13: ...50S to the load impedance The output amplitude is doubled when the output impedance is above 1 MS SYNC Output The SYNC Output generates a single TTL pulse for synchronizing other instruments i e an o...

Page 14: ...input Select between positive or negative transitions to trigger the instrument You may also program the trigger level to the desired threshold level on the external signal When triggered the synthesi...

Page 15: ...d standard waveforms Arbitrary Waveforms The arbitrary waveform memory is capable of storing one or more user waveforms There are 64536 points 523288 optional that can be allocated to one waveform tha...

Page 16: ...Getting Started 1 7 Figure 1 1 Segment 1 Sin x x Waveform Figure 1 2 Segment 2 Sine Waveform...

Page 17: ...igure 1 4 Sequenced Waveforms Output State The main output can be turned on or off The internal circuit is disconnected from the output BNC connector by a mechanical switch under program control relay...

Page 18: ...erence signals at the trigger input This built in counter is made available for you in PLL mode Thus you can use the 3152 as a frequency counter provided that the signal at the trigger input is valid...

Page 19: ...Instrument functions parameters and modes can only be accessed through VXIbus commands There are a number of ways to talk to the instrument They all require that an appropriate software driver be inst...

Page 20: ...voltages there are situations where hazardous conditions may be present This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precaution...

Page 21: ...nel the U S O S H A Occupational Safety and Health requirement and good engineering practice mandate that the instrument panel and enclosure be earth grounded Although BNC housings are isolated from t...

Page 22: ...s Selection The VXIbus Chassis Resource Manager identifies modules in the system by the module s address VXIbus logical addresses can range from 0 to 255 however addresses 1 to 254 only are reserved f...

Page 23: ...LSB M SB S1 L O G IC A L A D D R E S S S E L E C T 1 0 OFF LOGIC 0 ON LOGIC 1 SIDE VIEW OF SW ITCH S1 Configuring The Instrument 2 4 Figure 2 1 Set The Logical Address...

Page 24: ...should be gently rocked back and forth to seat the connectors into the backplane receptacle The ejectors will be at right angles to the front panel when the instrument is properly seated into the back...

Page 25: ...Configuring The Instrument 2 6 This page was intentionally left blank...

Page 26: ...mismatch Proper termination is also required for an accurate amplitude level at the main output connector Use 50S cables and terminate the main and SYNC cables with terminating resistors Always place...

Page 27: ...erstand the meaning and response that each command generates Examples contained in the following paragraphs show basic techniques on how to program output waveforms Example 1 The following example pro...

Page 28: ...UTPut SYNC ON If the above commands are executed correctly a square waveform will be seen on your oscilloscope Using the APPLy Command The APPLy command provides a high level method of programming the...

Page 29: ...meters Parameters are not optional if the above APPLy command is used Include all other parameters in the command The default settings for these functions are 1 MHz 5 Vp p 0 V 0 and 1 The command APPL...

Page 30: ...arameters The default settings for these functions are 1 MHz 5 Vp p 0 V and 10 The command APPLy GAUSsian frequency amplitude offset exponent programs the synthesizer to output a gaussian waveform wit...

Page 31: ...utput generates a square waveform programs frequency to 2 MHz programs amplitude to 5 V and offset to 2 5 V It also changes the square wave duty cycle parameter to 25 Reset the Model 3152 to its defau...

Page 32: ...TRIangle SQUare PULSe RAMP SINC EXPonential GAUSsian DC The selected waveform is output using the previously selected frequency amplitude offset and other relevant settings The standard waveform will...

Page 33: ...urce Use the following command to select the source for the sample clock for the user and sequenced functions FREQuency RASTer SOURce EXT INT ECLTRG0 EXT selects an external clock source The external...

Page 34: ...ON The command OUTPut FILTer FREQuency 20MHz 25MHz 50MHz sets the filter frequency for the currently active function 20 MHz has a Gaussian response and the 25 MHz and the 50 MHz filters have an Ellip...

Page 35: ...onto the VXI backplane Other Model 3152s may be set up to receive this sample clock using the command FREQ RAST SOURCE ECLTRG0 See Selecting the Sample Clock Source ECLTRG1 should not be enabled onto...

Page 36: ...r signal at intervals set by the internal trigger generator EXTernal Generates a trigger signal every time a trigger is applied to the front panel TRIG IN connector The query OUTPut TRIGger SOURce que...

Page 37: ...ignals coming from a number of sources Use the following command to select the source for validating the SYNC output OUTPut SYNC SOURce BIT LCOMplete SSYNc HCLock BIT Generates a sync signal every tim...

Page 38: ...on has to be programmed for each segment The default SYNC position is 6 points from the end of the segment The query OUTPut SYNC POSition POINt queries the output SYNC position and returns an integer...

Page 39: ...N Total number of points t Time constant set by user For Negative EXPonential For GAUSsian For SINC where R N number of points per cycle ___ cyc cyc Number of cycles of SINC The standard waveform wil...

Page 40: ...measured between the two turning points of the first transition The query PULSe TRANsition queries the pulse rise time setting and returns a value in percent The command PULSe WIDTh value sets the pul...

Page 41: ...sumes position at a DC level equal to the last point of the waveform The Triggered mode operates on standard waveforms and arbitrary waveforms Observe the limitations of the trigger signal as listed i...

Page 42: ...r input occurs the Model 3152 generates a number of output cycles that have been programmed in the burst count parameter At the end of the burst the output resumes position at a DC level equal to the...

Page 43: ...s the trigger source and returns EXT INT or TTLT n Using the Internal Trigger Generator The internal trigger generator is a free running generator which is asynchronous with the main output generator...

Page 44: ...les by a value of 10 to 2 million cycles Actual delay is calculated by Tdelay Dcycles fSCLK where Dcycles is the programmed delay and fSCLK is the sample clock frequency setting Enable or disable this...

Page 45: ...an be divided into smaller segments Then it is possible to select which segment is sampled how many times and in what sequence When the instrument is programmed to output arbitrary waveforms a clock s...

Page 46: ...ry Note that if a segment is deleted the memory portion that belonged to this segment is no longer accessible The next segment that is defined will be placed after the last defined memory segment Howe...

Page 47: ...ge quantities of data The Model 3152 uses this command to receive waveforms from the controller TRACe 42000 binary_block This command causes the transfer of 2000 bytes of data 1000 points into the act...

Page 48: ...to Follow Byte Count 2x Number of Points 2 Bytes Per Data Point Figure 3 1 Definite Length Arbitrary Block Data Format 6 bits of data are sent to the Model 3152 although only 12 bits are required to g...

Page 49: ...de the Model 3152 s CPU disconnects from the waveform memory and passes access to the VXIbus The internal data bus is connected directly to the VXIbus and data is downloaded into the memory in binary...

Page 50: ...ns 0 OFF or 1 ON The following sequence should be used for shared memory transfers 1 Slot 0 sends commands TRAC DEF n m Shared Memory write only TRAC SEL n SMEM MODE READ WRITE SMEM STATE ON 2 Slot 0...

Page 51: ...ods to load waveforms into memory Information on how to partition the memory and load waveforms is given in the section entitled Generating Arbitrary Waveforms An example of how sequenced waveforms wo...

Page 52: ...Using The Instrument 3 27 Figure 3 4 Sine Waveform Loaded Into Segment 2 Figure 3 5 Pulse Waveform Loaded Into Segment 3...

Page 53: ...stand on its own or link to another step It is possible to have only one step in a sequence but the output will look like a continuous waveform If only one step is specified and the Model 3152 is pla...

Page 54: ...quence is always completed after the gate stop signal If removal of a step from the sequence is required use the following command SEQuence DELete n where n is the step number to be removed from the s...

Page 55: ...veforms using the commands that were explained before Second place the instrument in Triggered mode using the INIT CONT OFF command To place the Model 3152 in Triggered Sequence Advance mode use the f...

Page 56: ...ization commands that can tightly control phase offsets between two or more Model 3152s These commands are described below To use the following commands two Model 3152s are required When synchronizing...

Page 57: ...hase Lock mode and returns 0 OFF or 1 ON The query PHASe 1 ADJust queries the phase offset and returns a value in degrees In query PHASe 1 SOUR queries the phase lock source and returns MAST or SLAV F...

Page 58: ...lock and it does not check the following 1 Make sure that trigger level is adjusted correctly 2 Make sure that the 3152 frequency setting permits lock in the required range Two graphs one for fixed m...

Page 59: ...the TRIG LEV command The default trigger level setting is 1 6 V 2 Check that the 3152 frequency setting permits lock in the required range Two graphs one for fixed mode and the other for user mode ar...

Page 60: ...th is 50 The query AM queries the modulation depth and returns a value in percent The command AM INTernal FREQuency value sets the frequency of the carrier sine waveform The frequency of the carrier w...

Page 61: ...removed from the queue The error queue is cleared only when power is cycled off or after the execution of a CLS command The RST command does not clear the error queue The query SYST ERR queries the sy...

Page 62: ...Using The Instrument 3 37 The query OPT queries the waveform memory length installed in the 3152 The response is 0 for 64K and 1 for 256K or 512K...

Page 63: ...Using The Instrument 3 38 This page was intentionally left blank...

Page 64: ...standard The SCPI standard defines a common language protocol It goes one step further than IEEE STD 488 2 and defines a standard set of commands to control every programmable aspect of the instrumen...

Page 65: ...e abbreviated form For better program readability send the long form For example in the above syntax statement FREQ and FREQUENCY are both acceptable forms Use upper or lowercase letters Therefore FRE...

Page 66: ...ing Query the current value of most parameters by adding a question mark to the command For example the following command sets the output function to square SOUR FUNC SHAP SQR Query the output functio...

Page 67: ...numeric parameters e g MHz or KHz can also be sent If only specific numeric values are accepted the function generator will ignore values which are not accepted and will generate an error message The...

Page 68: ...he Model 3152 can accept binary blocks up to 1046576 bytes The following command uses an arbitrary block parameter that is loaded as binary data TRAC DATA 564000 binary_block SCPI Command Summary Tabl...

Page 69: ...Uare FREQ AMPL OFFS DCYC Not confirmed PULSe FREQ AMPL OFFS DEL WIDT LEAD TRA Not confirmed RAMP FREQ AMPL OFFS DEL LEAD TRA Not confirmed SINC FREQ AMPL OFFS NCYC Not confirmed GAUSsian FREQ AMPL OFF...

Page 70: ...Confirmed FINE 0 36 36 Not Confirmed SEQuence Not Confirmed ADVance AUTOmatic TRIGgered Not Confirmed DEFine 1 1 4096 1 1 4096 1 1 1E6 Not Confirmed Link segment repeat DELete Not Confirmed NAME 1 1...

Page 71: ...and Commands and Parameters Low Limit High Limit Default SOURce APPLy SINusoid frequency amplitude offset phase power APPLy TRIangle frequency amplitude offset phase power APPLy SQUare frequency ampli...

Page 72: ...19 0 VOLTage OFFSet OUTPut FILTer FREQuency 20MHz 25MHz 50MHz 20MHz FILTer FREQuency FILTer OFF ON OFF FILTer STATe OFF ON OFF STATe SOURce SYNC SOURce BIT LCOMplete SSYNc HCLock 1256K BIT SYNC POSiti...

Page 73: ...er value 1 9 1 SINusoid POWer TRIangle PHASe value 0 360 0 TRIangle PHASe TRIangle POWer value 1 9 1 TRIangle POWer SQUare DCYCle value 1 99 50 SQUare DCYCle PULSe DELay value 0 99 9 10 0 PULSe DELay...

Page 74: ...are shown in bold Command and Parameters TRACe binary_block TRACe DEFine segment_number length TRACe DELete segment_number TRACe DELete ALL TRACe SELect segment_number FORMat BORDer NORMal SWAPped FOR...

Page 75: ...two or more modules There is no limit on how many modules can be synchronized as long as one module is programmed to be master and the rest of the modules are slaves The location of the slave modules...

Page 76: ...Appendix A System Related Command Summary The system related commands are not related directly to waveform generation but are an important part of operating the Model 3152 These commands can reset or...

Page 77: ...available the device must return an ASCII 0 for each For example Model 3152 s response to IDN is RACAL INSTRUMENTS 3152 0 1 0 OPC Set the operation complete bit bit 0 in the Standard Event register a...

Page 78: ...et amplifier or offset control failure 4 CPU to peripheral communication failure 8 Trigger circuit or internal trigger failure 16 Sequence or burst generator failure 32 Clock generator failure More th...

Page 79: ...ry bit The user can read from and write to an Enable Register Querying an Enable Register will not clear it The CLS command does not clear Enable Registers but it does clear bits in the event register...

Page 80: ...SCPI Command Reference 4 17 Figure 4 1 SCPI Status Registers...

Page 81: ...ummary Message This bit indicates whether or not one or more of the enabled ESB events have occurred since the last reading or clearing of the Standard Event Status Register Bit 6 Decimal value 64 Mas...

Page 82: ...E0 Clears all bits in the register SRE1 Not used SRE2 Not used SRE4 Not used SRE8 Not used SRE16 Service request on MAV SRE32 Service request on ESB summary bit SRE128 Not used Standard Event Status R...

Page 83: ...vents in the Standard Event Status Register to be reflected in the ESB summary message bit The Standard Event Status Enable Register is an 8 bit register that enables corresponding summary messages in...

Page 84: ...ain up to 80 characters 102 Syntax error A complete listing of the errors that can be detected by the synthesizer is given below 100 Command error When the synthesizer cannot detect more specific erro...

Page 85: ...e specific errors A device specific error as defined in IEEE 488 2 has occurred 311 Memory error Indicates that an error was detected in the instrument s memory 350 Too many errors The error queue is...

Page 86: ...served CAUTION ALWAYS PERFORM DISASSEMBLY REPAIR AND CLEANING AT A STATIC SAFE WORKSTATION Disassembly Instructions If it is necessary to troubleshoot the instrument or replace a component use the fol...

Page 87: ...stalled on the PC board the device is adequately protected and normal handling may resume Cleaning The Model 3152 should be cleaned as often as operating conditions require To clean the instrument use...

Page 88: ...ed to conditions outside these ranges allow at least one additional hour for the instrument to stabilize before beginning the adjustment procedure Always perform a self test sequence before commencing...

Page 89: ...les 1 meter long 50S impedance 20dB feedthrough attenuator 50S 1 T BNC Connector 50S 1 Performance Check Procedures Use the following procedures to check the Model 3152 against the specifications A co...

Page 90: ...fications 1 KHz 1 of reading 200 V to 160 mV 1 of reading 2 mV to 1 6 V 1 of reading 20 mV to 16 V Equipment DMM 50S feedthrough termination 1 Configure the Model 3152 as follows Function Sine Frequen...

Page 91: ...EADING 5 000 V 5 070 V to 4 930 V 4 Change the Model 3152 AMPL setting to 161 mV Set VOLT OFFS and verify the DMM reading as follows OFFS SETTING DMM READING 500 0 mV 507 0 mV to 493 0 mV 5 Change the...

Page 92: ...alyzer RF Spectrum Analyzer 50 feedthrough termination or 20dB 50 attenuator if required 1 Connect the Model 3151 output to distortion analyzer input 2 Set the distortion analyzer to distortion measur...

Page 93: ...ommands RES OUTP ON FREQ 10e3 VOLT 6 2 Connect the Model 3152 OUTPUT to the oscilloscope set the oscilloscope input impedance to 50S and set the oscilloscope to display the sinewave within exactly 6 v...

Page 94: ...e Triggered Remote Commands RES OUTP ON FREQ 1e6 INIT CONT OFF 2 Set the external pulse function generator frequency to 10 KHz and connect its SYNC connector Set the oscilloscope and verify on the osc...

Page 95: ...esolution 2 5E Equipment Oscilloscope Counter Pulse Function Generator Feedthrough Terminator 3 BNC Cables 50S T Connector 1 Configure the Model 3152 as follows Function Square wave Mode Front Panel P...

Page 96: ...and verify counter phase readings as shown below 3152 FREQ PULSE GENERATOR SETTING FREQ SETTING COUNTER READING 10 00 KHz 10 00 KHz 180E 5E 6 Change the Model 3152 PHAS2 ADJ setting to 180E Change 315...

Page 97: ...uipment Recommended test equipment for calibration is listed at the beginning of this chapter in the section entitled Recommended Test Equipment Test instruments other than those listed may be used on...

Page 98: ...emote Commands RES OUTP ON FUNC SHAP SQU FREQ 1e6 VOLT 10 2 Connect the Model 3152 output through 20dB attenuator to the oscilloscope input 3 Set the oscilloscope input impedance to 50S 4 Set the osci...

Page 99: ...6 Repeat Steps 4 and 5 until the best result is obtained in both steps Revised 5 98 Offset Adjustment Equipment DMM 50S feedthrough termination 1 Configure the Model 3152 as follows Function Sine Fre...

Page 100: ...urements 3 Adjust R536 until the DMM reading is 0 V 500 mV Revised 5 99 PLL Adjustment Equipment Oscilloscope Counter Pulse Function Generator Feedthrough Terminator 3 each BNC Cables 50S T Connector...

Page 101: ...s left to the technician Recommended Test Equipment Recommended test equipment for troubleshooting and adjustment of the Model 3152 are listed in the section entitled Recommended Test Equipment in the...

Page 102: ...ircuits can be very difficult The supply voltages are supplied to the Model 3152 through the backplane In case of a dead short between one of the supplies to the common ground disconnect the entire su...

Page 103: ...K U87 pin 5 Negative going 6 5 s width pulses 9 ASIC LCS U104 pin 11 Negative going 6 5 s width pulses 10 LR W U93 pin 19 Negative going 60 s width pulses Output Amplifier and Amplitude Control Checko...

Page 104: ...Maintenance and Performance Checks 5 19 7 Change amplitude setting to 1 61V and offset setting to 7V 8 U8 pin 1 Approximately 320 mV 9 U8 pin 7 Approximately 2 V...

Page 105: ...dure reset the 3152 to the factory default using the RST command and change frequency setting to 1 MHz Table 5 3 Clock Synthesizer Checkout Procedure Step Test Point Expected Result 1 U510 pin 7 100 M...

Page 106: ...load three different waveforms 100 points long to segments 1 2 and 3 respectively Program each step to repeat once Use the following commands after loading the waveforms Remote Commands FUNC MODE SEQ...

Page 107: ...ms period PLL Checkout Problems with the phase lock loop circuits can be detected if the Model 3152 accepts word serial commands and responds correctly to word serial queries but fails to lock to a va...

Page 108: ...ere is a problem with the engine board circuits proceed with the checks given in Table 5 7a Before starting the following procedure reset the Model 3152 to the factory default using the RST command Ta...

Page 109: ...s width 200 KHz 4 U39 pin 8 TTL Level Positive going pulses 1 Fs width 200 KHz 5 U26 pin 11 TTL Level Negative going pulses 1 Fs width 200 KHz 6 U24 pin 1 ECL Level Negative going pulses 1 Fs width 20...

Page 110: ...ame as waveform memory Synthesizer Reference Sources Sample Clock Reference Sources External Reference Input from VXIbus CLK10 Optional Internal Reference PCB layout to provide for either internal 1 1...

Page 111: ...e of the triggering signal Last cycle of output waveform is always completed External Burst Preset number of up to 1 million cycles are stimulated by an internal external or manual trigger Internal Bu...

Page 112: ...igger operation when synchronized the trigger circuit in the master module has control of the sample clock for all modules Therefore the master module must be triggered before any slave can output it...

Page 113: ...4 V 250 mA 250 mA 12 V 100 mA 100 mA 5 V 3 A 150 mA 5 2 V 2 A 150 mA 12V 100 mA 100 mA 24V 250 mA 150 mA 2V n a n a Maximum Total Module Power 40 W 64K 45 W 512K Self Test Fault Coverage Fault Coverag...

Page 114: ...signed to meet IEC 1010 1 UL 3111 1 CSA 22 2 1010 Workmanship Standards PCB Assembly Conform to IPC A 610D Output Characteristics Output Via front panel OUTPUT BNC terminal Stand By Output Normal or O...

Page 115: ...t Via front panel SYNC OUT BNC terminal Level TTL Protection Protected against temporary short to case ground Standard Waveforms Frequency Range Waveform dependent Source Internal Synthesizer Resoluti...

Page 116: ...to 1 MHz Adjustable Parameters Delay 0 to 99 9 of period Rise Time 0 to 99 9 of period High Time 0 to 99 9 of period Fall Time 0 to 99 9 of period Sinc Sine x x Frequency Range 100 Hz to 1 MHz Adjust...

Page 117: ...Same as frequency standard Sequenced Waveforms Operation Permits division of the memory bank into smaller segments Segments may be linked and repeated in user selectable fashion to generate extremely...

Page 118: ...ristics Operation Automatically locks to external signal PLL Input Characteristics Same as TRIG IN External Lock Frequency Range Standard Waveforms 500 Hz to 200 kHz frequency setting 500 Hz to 200 KH...

Page 119: ...orm samples Accuracy 5 4 x frequency in MHz resolution 2 5 Fine Phase Offset Control Range 36 around coarse phase offset setting Resolution 0 01 Accuracy 10 typical Frequency Counter Operation Made av...

Page 120: ...100MHz PM Input Bandwidth 10 100Hz 10KHz 1KHz 100 1000 10 000 100 000 _______ Ext Freq Specifications A 11 PM Input Impedance 100 K6 5 Sensitivity 20 V typical Accuracy 30...

Page 121: ...Specifications A 12 This page was intentionally left blank...

Page 122: ...Contact Phone Number Purchasing Contact Phone Number 1 Describe in detail the problem and symptoms you are having Please include all set up details such as input output levels frequencies waveform det...

Page 123: ...Phone 33 1 3955 8888 FAX 33 1 3955 6735 Racal Systems Elettronica Srl Strada 2 Palazzo C4 20090 Milanofiori Assago Milan Italy Phone 39 2 5750 1796 FAX 39 2 5750 1828 Racal Elektronik System GmbH Fra...

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