Manual - Berkeley Nucleonics Corporation
Contents
1. 6 1 1 1 Start S T A RI T T ir li lg g jej r I NIH I B I T EJD I N T EIR N ATL EIX TIEIRIN A L RJE P F 1 RJE P F 2 RJE P F 3 SIIINIG LE 1 SIIINIG LE 2 S A T L elvlell 1 510 V S A T P oj lj aj r i ty 6 1 1 2 Stop S T JO P T r ilg g e r I NIH I B I T E D IINIT E IR NI AIL E X IT E R N A L RJE P F 3 RJE P F2 RJE P F 3 SIIINIG LE 1 SIIINIG LE 2 S O P L elvlell 1 510 V STO Plo lja r il t y 6 1 1 3 Sequence measurement Salina Dels WER RE T C p o qo qp o a A A AAA A EE ES DE BERKELEY NUCLEONICS Page 32 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 S e q ju_ e c e S ijnjg Rle pje t ilt ilvle 6 1 1 4 Arming mode HO mia m u DU o D lt lt lt 3 O O O 5 z z zo O0 0NWN3 gt ja io 6 1 1 5 Measurement result Maximum Minimum SC y M x ft EY AER EECHER With X umber of samples measured and Y number of samples Mean delay Jitter D 0 pls J t 0 10 ps Frequency Number of event 6 12. 31 6 1 FRONT PANEL OPERATION 31 6 1 1 TE 31 BERKELEY NUCLEONICS Page 2 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 6 1 2 JP ade cad Leet td dida bd 34 6 1 3 Command struct alas 35 A AA AA AN 35 D Aa OEE AA aa SSS sisa 36 RIG ma el S Nu u as eh nun asus aa acta Badd data ann EE 36 BERKELEY NUCLEONICS Page 3 36 d Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 201 1 EDITION Ed Date Description 14 18 01 2011 Creation 5 12 12 2008 Update the document to correct some bugs 6 08 06 2010 Command STAT SCAN BERKELEY NUCLEONICS Page 4 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 1 GENERAL INFORMATION The BNC 1120 1pS Time Interval Counter measures time interval frequency and events The single shot resolution and low jitter of the instrument make it the ideal for many test and measure application Time intervals are measured with 1 ps resolution Frequency and events are measured up to 10 MHz Trigger level and slope are adjustable on each input The instrument uses a linear interpolation technique and an internal calibration to obtain very high accuracy All the BNC 1120 parameters may be local controlled over the front panel keys and LCD display and remote controlled via an Ethernet interface In
3. STAT CLEAR STAT POW TRIG CLK TEMP SCAN Set amp Query Clear or query the status CLEAR clear the trig status SCAN this command measure all analog values convert analog value in digital value save the digital value in the interface controller and refresh the value in the front panel POW return the power levels 6V 6V 3 3V 1 8V 12V TRIG return the trigger status CLK return the clock status TEMP return the equipment temperature STAT CLEAR STAT SCAN STAT POW gt STAT POW 6 00 6 00 3 30 1 80 12 00 STAT TRIG gt STAT TRIG 1 1 STAT CLK gt STAT CLK INTERNAL STAT TEMP gt STAT TEMP 45 27 BERKELEY NUCLEONICS Page 24 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 STOP Syntax Form Description Command Parameter Query response Example TRIG Syntax Form Description Command Parameter Example STOP Set Stop active measurement STOP TRIG START STOP INH INT EXT TRIG START STOP Set amp Query Set or query channel trigger mode START set trigger for START channel STOP set trigger for STOP channel INH trigger inhibited INT internal trigger 1 kHz EXT external trigger TRIG START EXT TRIG START gt TRIG START EXT BERKELEY NUCLEONICS Page 25 36 Date 18 01 2011 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 4 2 Remote control via Internet web page BNC 1120 is c
4. 13 3 2 3 EE 15 3 2 4 Do qanya esas u TE nsn EEN 16 3 3 REAR PANEL OP RATION esasa Ea E E EEE R AE E E E E A Rais 16 4 CONNECTING TO THE INSTRUMENT VIA ETHERNET 17 4 1 COIN DIN 17 SEN oia AG AN nn nda a 17 ZU AA AA A 17 CAL 18 COUNT dnde iodo I TEE tx S a Le nil M EE 18 DIN d M 9 18 DEFORMAT soi 19 JITTER OQ 19 EE 20 MODE EE EE 20 a da 21 RESULT Sii dida lll iii ltd rol id ls s 22 RUN tata raid TE Na 23 SAMPLES lt td e Ln 23 MATE 24 IUD RENE EHE EE 25 yg jc EE 25 4 2 REMOTE CONTROLE VIA INTERNET WEB PAGE cescescessesseeseeseesecaeenecseeseeaeceecsceeaesaecseeaeenseeaecaeceaseaeeaeeaesareneees 26 4 2 1 Results web papeco A ii 26 4 2 2 SEL UP WED PAGE rain aida diras 27 4 2 3 Status WED PARE BRE 28 4 3 REMOTE CONTR LE VIA ETHERNET s ssessesseesseseestestertesterttttettts testene r tenter t En N ESEAS EES EEEEEENEENEAEEEE AEEA S EEn EES eneen en en eEn 28 Sy OPERATION EXAMPLES on nani a e NADAGANAN 29 SEED CIT 29 3 2 EXAMPLEN eese cem 30 6 ANNEXE OPTION 1 OPTICAL MESSAGE
5. 1 6 Historical command GIR O U P BERKELEY NUCLEONICS Page 33 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 6 1 2 IP adress G F T 2 0 0 2 n 1 0 V 1 5 Press OK and OK P A D R E S 0 9 19 o o O 0 jo O 1 2 3 Press UP N JE T M JA S K 2 5 5 o o 0 0 o 0 0 o 0 Press UP G JA T E IW A Y D R E S 0 9 9 o jo lo o jo jo 1 2 3 Press UP U s E D H C P N O Press a UP S Y N C W IO R 3 15 Press UP L JA IN G U A JG E E n g i S h Press UP C a i b r a t P R E S S O IK Press UP R E T JU R IN O M l N M E N U Press UP to go IP menu Press OK to go BNC 1120 menu BERKELEY NUCLEONICS Page 34 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 6 1 3 Command structure STAT Syntax Form Descr
6. 3 SS1 trigger on SS1 signal SS2 trigger on SS2 signal TRIG START EXT TRIG START gt TRIG START EXT BERKELEY NUCLEONICS Page 36 36
7. Interval Counter NUT 012 Ed 6 Date 18 01 2011 LEVEL Syntax Form Description Command Parameter Specified limit Example MODE Syntax Form Description Command Parameter Query response Example LEVEL START STOP lt level gt LEVEL START STOP Set amp Query Set or query channel trigger level START set level for START channel STOP set level for STOP channel lt level gt level between 0 5 and 5 0 volts 0 5V lt level lt 5 0V LEVEL START 2 8 LEVEL START gt LEVEL START 2 8 MODE SING REP MODE Set amp Query Set or query mode SING set single measurement REP set repetitive measurement MODE SING single measurement MODE REP repetitive measurement MODE SING MODE gt MODE SING BERKELEY NUCLEONICS Page 20 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 POL Syntax Form Description Command Parameter Example POL START STOP POL START STOP Set amp Query Set or query channel trigger polarity START set polarity for START channel STOP set polarity for STOP channel set polarity to positive set polarity to negative POL START POL START gt POL START BERKELEY NUCLEONICS Page 21 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 RESULTS Syntax Form Description Query Parameter Example RESULTS FLOAT l
8. Vii 1 2 2 8 1 C INI IT E JRINJA L 1 0 M H z S T A R T E XT 1 5 0 V S T O P E XT 1 5 0 V 1 0 0 SIIINIG LJE A R M ON S T A R T 3 2 2 1 Start SIT RIT T r ilg g e r ION IH B I T E D I NITIE R N ATL E X IT E R N A I L S A T L elvlell 1 510 V S A T P oj lj aj r i ty 3 2 2 2 Stop Ss T O P T r ilg g e r ION IH I B I T E D I NITIE R N ATL E X IT E R N A L s T o P Llelvliell 1 510 V Ss T O P Ploll aj rij i t y 3 2 2 1 Sequence measurement ajm ip ljel s BERKELEY NUCLEONICS Page 13 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 S e q ju_ e c e S ijnjg R elple t ilt ilvle 3 2 2 2 Arming mode HO mia m u DU o D lt lt lt 3 O O O 5 z z zo O0 0NWN3 gt ja io 3 2 2 3 Measurement result Maximum Minimum EL I1 e eee RE RE ER E ey CC p O A a aY With X umber of samples measured and Y number of samples Mean delay Jitter D 0 pls J t 0 10 ps Frequency Number of event BERKELEY NUCLEONICS Page 14 36 Model 1120 1pS Time Interval Counter NUT 012
9. indicate power failure BERKELEY NUCLEONICS Page 6 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 2 SPECIFICATIONS Inputs start or stop Threshold 5 to 5 V Slope Rising or falling edge Input gate Threshold 1 5 V fixed Trigger rate 0 to 20 KHz Time interval Range 1 to 1 second Trigger rate 0 to 20 kHz Resolution lt 1ps single shot Error lt 250 ps time interval x 10 RMS jitter 10 ps Arming mode On start on stop on gate Event counting Range 0 to 10 000 000 Count rate 0 to 10 MHz Gate Internal 1 s external on input gate System Calibration Internal Functions Time interval event counting Output 10 MHz Signal Square wave 2 5 V pp ac coupling Input 10 MHz Signal 1 V nominal automatic detection BERKELEY NUCLEONICS Page 7 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 Clock Time base 10 MHz ovenized Stability 0 05 ppm Accuracy 10 Interface Front panel Ethernet 10 100 Mb s Internet Web page General Power required 90 220 V 50 60 Hz Weight lt 10 Kg Dimensions 19 1 U 300 mm BERKELEY NUCLEONICS Page 8 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 3 OPERATING INFORMAT
10. panel consists of LED Keyboard and LCD display that form the dialogue components in local mode 3 2 1 1 Leds The 4 leds displays following information PWR BNC 1120 ON OFF BUSY F1 CALCUL F2 OPTICAL MESSAGE 3 2 1 2 Front panel connectors Start BNC connector for application of the start events Stop BNC connector for application of the stop events Gate BNC connector for enabling Start and Stop events 3 2 1 3 LCD display The 2 X 20 characters LCD display is the user interface for the front panel programming operation in local mode 3 2 1 4 Keyboard Six keys select the function Tl wil allow user to select display line or if you are in cursor mode you can increment or decrement digit selected by the cursor lt gt Will allow user to move the cursor position OK set cursor mode or if you are already in cursor mode store the current value and clear the cursor mode Start the measure in repetitive or single shot mode Esc clear cursor mode without storing the current value Stop the measure in repetitive mode BERKELEY NUCLEONICS Page 12 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 3 2 2 Display menu G F T 2 0 0 2 sin 11011
11. Ed 6 Date 18 01 2011 3 2 3 IP adress G F T 2 0 0 2 n 1 0 V 1 5 Press OK and OK P A D R E S 0 9 19 o o O 0 jo O 1 2 3 Press UP N JE T M JA S K 2 5 5 o o 0 0 o 0 0 o 0 Press UP G JA T E IW A Y D R E S 0 9 9 o jo lo o jo jo 1 2 3 Press UP U s E D H C P N O Press a UP S Y N C W IO R 3 15 Press UP L JA IN G U A JG E E n g i S h Press UP C a i b r a t P R E S S O IK Press UP R E T JU R IN O M l N M E N U Press UP to go IP menu Press OK to go BNC 1120 menu BERKELEY NUCLEONICS Page 15 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 3 2 4 Default value The default values are the following At factory e IP 99 0 0 18 GW 99 0 0 1 e Mask 255 0 0 0 At start up e START OFF e STOP OFF Level 0 5 V 3 3 Rear panel operation 3 3 1 1 Rear panel connect
12. ION 3 1 Principle 3 1 1 block diagram 10 MHz Clock Tes Me Calibrator Cal converter Clock Gate Linear Start interpolator Timing Time counter controller Linear Stop interpolator Keyboard display Input Interface Controller Ethernet control 3 1 2 Time interval mode In timing interval mode the BNC 1120 measures the time between a Start and Stop pulse The timing information is obtained by a processing that combines the two following information e Coarse information provided by a wide range Time counter running at 155 52 MHz 6 43 ns resolution e And fine information provided by the two linear interpolators started by the event on the Start and Stop inputs A gate input can be used to enable or disable all Start and Stop events as desired The BNC 1120 can make positive or negative time measurements The start pulse can occur before or after the stop pulse The number of sequence measurement can be controlled by the sequence command single repetitive In repetitive sequence the number of measurement is controlled by the value write in sample command BERKELEY NUCLEONICS Page 9 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 3 1 3 Event mode In this mode the BNC 1120 counts events at Start and at Stop inputs Event counting can be gated e Internally with a gate ranging of 1 second e Externally through th
13. NUT 012 Ed 6 B NC June 2010 User s manual Model 1120 1pS Time Interval Meter e Two Channels Start Stop e 1 ps one shot resolution e lt 10psrms jitter e 1stime measurement range e Rack 19 1U e Ethernet interface Total sheets 36 1 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 CONTENT 1 GENERAL INFORMATION sisscccssssssssccssssscssascssesssnssssssessctsscssasssncssscesscsesesescssssssasssosssseassesssases sescsesacscoasscsssessesesses 5 1 1 POWER INSTALLATION stoat tresto estros trens ress Eees SeS EAR EEES EPOSSE ESSEE ESE PESEE E SNES Sroa nees eoero eee 6 1 2 OPERATING TEMPERATURE orit rrt uu n XE ER NGANGA Ea e Gaga GER VERE DN LaNa ENEE Lo iR 6 1 3 RACK MOUNTING INFORMATION ccccccssscssssscesscecsssecessescesececseescssssecessecessuecesssecseuscesssecesesecsesevestsecssussesssevesssecsees 6 ON EE 6 2 SPECIFICATIONS 7 33 JOPERATING INFORMATION E 9 lo PRINCIPLE 2At a L iaa iia 9 3 1 1 block diagram iden 9 3 1 2 Time interval mode A 9 3 1 3 EE 10 3 1 4 Ao A ias 10 3 1 5 TO MHz Time DOS iris 10 3 1 6 Eum 11 3 2 FRONT PANEL OPERATION occooocconnccconnncconnncnnnnncnnnnononnnconnnnonnnncnnn nc conan sentes Ea 12 3 2 1 uum 12 3 2 2 Display menu
14. TART BERKELEY NUCLEONICS Page 17 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 CAL Syntax Form Description Command Parameter Query response Example COUNT Syntax Form Description Query Parameter Example DELAY Syntax Form Description Query Parameter Example CAL Set Start an auto calibration sequence CAL COUNT Query Query the counter or frequency measurement COUNT gt COUNT 32456123 DELAY MEAN MIN MAX Query Query the delay measurement in picoseconds MEAN return the mean value of the samples MIN return the minimum value of the samples MAX return the maximum value of the samples DELAY MEAN gt DELAY MIN 145 DELAY gt DELAY 141 145 148 BERKELEY NUCLEONICS Page 18 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 DFORMAT Syntax DFORMAT ASC XML Form Set and Query Description Set or query the response format Command ASC set the format to simple ascii Parameter XML set the format to XML Example DFORMAT ASC DFORMAT gt DFORMAT ASC JITTER Syntax JITTER PPIRMS Form Query Description Query the jitter measurement in picosecond Query PP return the peak to peak jitter of the samples Parameter RMS return the RMS jitter of the samples Example JITTER PP gt JITTER 245 BERKELEY NUCLEONICS Page 19 36 Model 1120 1pS Time
15. e duration of input gate The trigger level and slope for a transition event are adjustable on both the Start and Stop inputs Event rate up to 10MHZ can be counted with a maximum of 10 000 000 digits 3 1 4 Auto calibration The BNC 1120 has a powerful built in auto calibration routine that compensates the nonlinearities in time to digital converter The auto calibration is done through a software command and takes about 30 seconds to be performed To calibrate the BNC 1120 send an Ethernet command or send CALIBRATE with the front panel 3 1 5 10 MHz Time base The accuracy of the BNC 1120 depends of the quality of the selected time base The internal 10MHz standard time base is an ovenized oscillator with stability of 20 005 ppm A rear panel input allows you to connect an external 10MHz source as a time base BERKELEY NUCLEONICS Page 10 36 1 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 3 1 6 Arming mode The BNC 1120 has 3 arming modes e ARM ON START START pulse STOP pulse Time time Measurement e ARM ON STOP w 1 1 1 1 1 f 1 1 1 STOP pulse Wa ime Measurement e ARM ON GATE GATE pulse pulse STOP pulse Time Pod time Measurement BERKELEY NUCLEONICS Page 11 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 3 2 Front panel operation 3 2 1 Interface The front
16. iption Command Parameter Query Parameter Example STAT CLEAR STAT POW TRIG CLK TEMP POPT SYN Set amp Query Clear or query the status CLEAR clear the trig status SYN return the synthesis word e 01 power fault e 02 sync error e 04 inhibited POW return the power levels 6V 6V 3 3V 1 8V 12V TRIG return the trigger status CLK return the clock status TEMP return the equipment temperature POPT return the optical received power STAT CLEAR STAT SYN gt STAT SYN H0001 STAT POW gt STAT POW 6 00 6 00 3 30 1 80 12 00 STAT TRIG gt STAT TRIG 1 1 STAT CLK gt STAT CLK INTERNAL STAT POPT gt STAT POPT 4 54 STAT TEMP gt STAT TEMP 45 27 BERKELEY NUCLEONICS Page 35 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 SYNC Syntax Form Description Command Parameter Example TRIG Syntax Form Description Command Parameter Example SYNC lt syncword gt SYNC Set amp Query Set or query the sync word for optical channel lt sync gt sync word format Hxx SYNC H35 SYNC gt SYNC H35 TRIG START STOP INH INT EXT F1 F2 F3 SS1 SS2 TRIG START STOP Set amp Query Set or query channel trigger mode START set trigger for START channel STOP set trigger for STOP channel INH trigger inhibited INT internal trigger 1 kHz EXT external trigger F1 F2 F3 trigger on frequency 1 2 or
17. ntrol via Ethernet Launch telnet Send the command open ip address 4000 if you want to dialogue with your equipment Send the command open ip address 4001 if you want to stop the connexion at the port 4000 Send the command open ip address 4002 if you want to reboot your equipment BERKELEY NUCLEONICS Page 28 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 5 OPERATION EXAMPLES 5 1 Example 1 Realize in local mode a repetitive Time interval measurement Initial setup Turn on the BNC 1120 with switch located on the rear panel After few second the first line of the menu BNC 1120 is displayed The instrument must warm up at least 20 minutes for maximum accuracy Test signal The operation example is performed using a test signal with following characteristics Pulse generator Duration 1000 ns Rise time 5ns Level 3V Repetition time 100 Hz This signal must be coupled with 502 divider then connected to start and stop input of BNC 1120 The length of the START cable 1 m T Setting up the instrument Use the front panel keyboard to reset the Setup menu as follows Start trigger External Start level 1 50 V Start polarity Stop trigger External Stop level 1 50 V ES polarity Samples 1000 Sequence es Arming mode on onstat Start the measurement Display the result line Mean delay jitter and press the OK keys to start the measurement The fron
18. ontrolled by 3 web pages e result this page controls the instrument and displays results e setup this page is to modify the setup status this page is to display some internal values and states for service people 4 2 1 Results web page GFT2002 Mozilla Firefox Eher dition Affichage Hstorique Marque pages Outils 2 QG S ki D htp EIN cocoge D marrage amp Derni res nouvelles a Sesi GREENFIELD TECHNOLOGY http 99 0 0 18 now us 2html Figure 4 1 Web page Results Page 26 36 BERKELEY NUCLEONICS Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 4 2 2 Set up web page GFT2002 Mozilla Firefox Fichier dition Affichage Historique Marque pages Outils 2 E p S GB D nono PLV D marrage amp Derni res nouvelles sasa GREENFIELD TECHNOLOGY External trigger y External trigger y Armon START hd Termin Figure 4 2 Web page Select trigger for START and STOP BERKELEY NUCLEONICS Page 27 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 4 2 3 Status web page 2 GFT2002 Mozilla Firefox Fichier dition Affichage Historique Marque pages Outils lt a gt e Gt CJ http 99 0 0 18 CEE D marrage Derni res nouvelles s GREENFIELD TECHNOLOGY Figure 4 3 Web page Temperature power supply 4 33 Remote co
19. ors 10MHZ input BNC type When the Rack is in external clock mode the internal oscillator will phase lock to a 10MHz signal applied to this connector 10MHZ output BNC type This signal is a 10 MHz square wave lt is a copy of the internal oscillator and can be used to verify the frequency or to drive another BNC 1120 which are operating in external mode Option Optical input SC PC type This optical input is compliant to GFT3001 for timing system measurement In that mode the BNC 1120 use the clock and the triggers provided by the optical network connected to GFT3001 Power source For 110 to 220 Voltages AC line 3 3 1 2 Rear panel control Power switch Turns AC power on BERKELEY NUCLEONICS Page 16 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 4 CONNECTING TO THE INSTRUMENT VIA ETHERNET 4 1 Command structure IDN Syntax IDN Form Query Description Queries instrument identification Response gives instrument model serial number and firmware version Parameter Example GFTy MIPSI BNC 1120 SN101 000000 V1 0 Instrument model BNC 1120 Serial number 101 Firmware version 1 1 ARM Syntax ARM START STOP ARM Form Set 8 Query Description Define the arming mode or ask for current arming mode Command START arm on start Parameter Query response Example STOP arm on stop ARM START arming on start ARM STOP arming on stop ARM START ARM gt ARM S
20. strument Option e Option 1 Optical triggered In timing system mode the module could be triggered by BNC 575 Digital Delay and Pulse Generator via an optical signal Technical support For more information about operating the BNC 1120 send an email to info berkeleynucleonics com Package contents The box you receive should contain the following e BNC 1120 instrument e User s manual e Power cord e CD contains pdf user manual BERKELEY NUCLEONICS Page 5 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 1 1 Power installation Power source The BNC 1120 can be operated from 110 VAC to 220 VAC nominal supply source The maximum power consumption of the BNC 1120 is 45 W Power cord The BNC 1120 comes with a removable power cord for European usage It has a three contact plug for connection to both the power source and protective ground 1 2 Operating temperature The instrument can be operated where the ambient air temperature is OC to 35 C and can be stored in ambient temperature from 10 C to 60 The BNC 1120 is cooled by air circulation To prevent instrument damage a clearance of 2 inches on the side and 1 inch on the rear must be maintained for proper cooling 1 3 Rack mounting information The BNC 1120 will fit a 19 inch rack 1 4 Self test The BNC 1120 is automatically tested after power on power supply and temperature If the power supply is not ok the BNC 1120
21. t offset gt Query Query the samples measurement results The FLOAT query always returns real computed values As the query response for all samples can be very long the query only returns 100 sample values starting at the offset specified in the query FLOAT returns the translated values of the samples offset starting position for the 100 samples returned RESULTS FLOAT 0 gt RESULTS 0 12345 12346 12343 BERKELEY NUCLEONICS Page 22 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 RUN Syntax Form Description Command Parameter Query response Example SAMPLES Syntax Form Description Command Parameter Specified limit Example RUN DELAY FREQ COUNT RUN Set 8 Query Start measure or ask if measuring DELAY start a delay measurement FREQ start a frequency measurement COUNT start a count measurement RUN YES measurement running RUN CAL calibration running RUN NO no measurement running RUN DELAY RUN gt RUN YES SAMPLES lt samples gt SAMPLES Set 8 Query Set or query the measurement samples lt samples gt number of samples 1 lt samples lt 1000 SAMPLES 500 SAMPLES gt SAMPLES 500 BERKELEY NUCLEONICS Page 23 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 STAT Syntax Form Description Command Parameter Query Parameter Example
22. t panel leds busy must be on and tilt each second Result must be Delay 5 200 ns Jitter 8 ps rms For stopping the measurement press the ESC key BERKELEY NUCLEONICS Page 29 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 5 2 Example 2 Realize in local mode a frequency measurement on start input Same initial set up and test signal as for example n 1 Setting up the instrument Use the front panel keyboard to reset the Setup menu as follows Start polarity Start the measurement Display the result line frequency and press the OK keys to start the measurement The front panel leds busy must be on and tilt each second Result must be Frequency 100 Hz For stopping the measurement press the OK key BERKELEY NUCLEONICS Page 30 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011 6 ANNEXE OPTION 1 OPTICAL MESSAGE 6 1 Front panel operation 6 1 1 Display menu G F T 2 0 0 2 sl n 1 0 1 VI1T 1 2 2 8 1 C 15 6 8 d B m NITE RIN A L 1 10 M Hz SITIAI IRIT E X T 1 ERAN S T O P EXIT 1 5 0 V 1 0 0 S Il N IG LE A R M O N S T A RIT BERKELEY NUCLEONICS Page 31 36 Model 1120 1pS Time Interval Counter NUT 012 Ed 6 Date 18 01 2011
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