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NI PXI-665x User Manual

1. PFI 1 lt _ _ _ gt PFIO Threshold DAC Driver 4 Comparator PFI 2 Driver gt Comparator PFI3 lt P Driver gt Comparator PFI4 gt PFI Threshold DAC PFI2 Threshold DAC PFI3 Threshold DAC Driver P Comparator PFI4 Threshold DAC 3 2 PFI5 gt Driver 4 Comparator ni com PFI5 Threshold DAC CLOCK and TRIGGER Routing PXI_STAR lt 0 12 gt PXI_TRIG lt 0 7 gt PCI Interface PXI PCI NI PXI 665x User Manual Figure 3 2 Functional Overview of the NI PXI 6651 CLKIN AC Coupled Clock Detector PFI 0 lt gt gt Driver Comparator A as PXI_CLK10_IN gt PFIO Threshold DAC PFI 1 lt gt Driver Comparator PFI Threshold DAC CLOCK and TRIGGER Routing PCI Interface PXI_STAR lt 0 12 gt PXI_TRIG lt 0 7 gt PXI PCI National Instruments 3 3 Chapter 3 Hardware Overview NI PXI 6653 Front Panel Figure 3 3 shows the connectors and LEDs on the front panel of the NI PXI 6653 Figure 3 3 NI PXI 6653 Front Panel Y NATIONAL PP INSTRUMENTS NI PXI 6653 Timing Module 00 lt ACCESS ACTIVE CLK OUT CLK IN cana PFIO PFI1
2. NI PXI 6653 and NI PXI 6652 only Signal Name Direction Description PXI_CLK10_IN Out This is a signal that can replace the native 10 MHz oscillator on the PXI backplane PXI _CLK10_IN may originate from the onboard OCXO or TCXO or from an external source PXI_CLK10 In This signal is the PXI 10 MHz backplane clock By default this signal is the output of the native 10 MHz oscillator in the chassis An NI PXI 665x in Slot 2 can replace this signal with PXI CLK10_IN OCXO Clock Out This is the output of the 10 MHz OCXO or NI PXI 6653 or TCXO The OCXO and TCXO are extremely TCXO Clock stable and accurate frequency sources NI PXI 6652 CLKIN In CLKIN is a signal connected to the SMB input pin of the same name CLKIN can serve as PXI_CLK10_IN or be used as a phase lock reference for the OCXO and TCXO CLKOUT Out CLKOUT is the signal on the SMB output pin NI PXI 6653 and of the same name Either the OCXO clock NI PXI 6652 only TCXO clock DDS clock or PXI_CLK10 may be routed to this location DDS Clock Out This is the output of the NI PXI 6653 or NI PXI 6652 DDS The DDS frequency can be programmed with fine granularity from 1 Hz to 105 MHz The DDS chip automatically phase locks to PXI_CLK10 National Instruments 3 9 Chapter 3 Hardware Overview Table 3 3 Signal Descriptions Continued Signal Name Direction Description PXI STAR lt 0 12 gt In Out The PXI star trigger bus connects
3. 3 Stresses beyond those listed can cause permanent damage to the device Exposure to absolute maximum rated conditions for extended periods of time can affect device reliability Functional operation of the device outside the conditions indicated in the operational parts of the specifications is not implied National Instruments A 3 Appendix A Specifications PXI_STAR Trigger Characteristics PXI_STAR lt 0 12 gt to PXI STAR lt 0 12 gt output skew at NI PXI 665x backplane connector 300 ps typical Asynchronous delays tpa PXI_ STAR lt 0 12 gt to PFI lt 0 5 gt Output eeeseeceeeeeeeetees 7 to 11 ns typical PXI_ STAR lt 0 12 gt to PXI TRIG lt 0 7 gt output eee 13 to 19 ns typical PXI Trigger Characteristics PXI_TRIG lt 0 7 gt to PXI_TRIG lt 0 7 gt output skew at NI PXI 665x backplane connector 5 ns typical Asynchronous delay tpa PXI_TRIG lt 0 7 gt to PFI lt 0 5 gt output 11 to 17 ns typical OCXO Characteristics Nominal frequency 0 0 eeeeeeeseteeeceeeneeeeneeees 10 MHz Accuracy within 1 year of calibration adjustment within 0 C to 55 C operating temperature range ccccceeseeeeee 80 ppb Long term stability 0 0 ccc cccsecsecscereereereeeeeee 50 ppb year Stability vs temperature cccecececeteeeeseeee lt 10 ppb peak to peak within 0 C to 55 C operating temperature range Jitter tO CLR OUD er bee 2 0 pSims gt 10 Hz to 1
4. e e e e e e e e e e e e Selection e h t gt Selection PFI 5 lt 4 Circuitry qH 7 gt Circuitry gt PXI_STAR 12 SYNCHRONIZATION T Selecti CLOCKS for PFI lt 0 5 gt Ba Goin L gt PXI_TRIG 0 PFIO T Selection L Circuitry gt PXI_TRIG 1 DDS P e o e es e pm 2N gt ee PXI_CLK10 A z aM Selection gt PXI_TRIG 7 gt Circuitry PELO SYNCHRONIZATION CLOCKS for DDS gt PXI_STAR lt 0 12 gt and PXI_TRIG lt 0 7 gt gt PXI_CLK10 gt oN a 3 Figure 3 7 provides a more detailed view of the Selection Circuitry referenced in Figure 3 6 Figure 3 7 Signal Selection Circuitry Diagram SOURCE SYNCHRONIZATION CLOCKS PFI lt 0 5 gt PXI_TRIG lt 0 7 gt See PXI_STAR lt 0 12 gt Software Trigger gt 9 Da GND CLK N CLK N gt o CLIT CLK M gt d v DESTINATION National Instruments 3 13 Chapter 3 Hardware Overview Determining Sources and Destinations All signal routing operations can be characterized by a source input and a destination In addition synchronous routing operations must also define a third signal known as the synchronization clock Refer to the Choosing the Type of Routing section for more information on synchronous versus asynchronous routing Table 3 4 summarizes the sources and destinations of the NI PXI 665x The dest
5. measurements include signal levels special hardware limited energy parts of hardware circuits powered by regulated low voltage sources and electronics e Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system MAINS This category refers to local level electrical distribution such as that provided by a standard wall outlet for example 115 AC voltage Measurement categories also referred to as overvoltage or installation categories are defined in electrical safety standard IEC 61010 1 and IEC 60664 1 Working voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation N w MAINS is defined as a hazardous live electrical supply system that powers hardware Suitably rated measuring circuits may be connected to the MAINS for measuring purposes National Instruments 1 3 Chapter 1 Introduction 1 4 for U S or 230 AC voltage for Europe Examples of Measurement Category II are measurements performed on household appliances portable tools and similar hardware Measurement Category III is for measurements performed in the building installation at the distribution level This category refers to measurements on hard wired hardware such as hardware in fixed installations distribution boards and circuit breakers Other examples are wiring including cables bus bars junction boxes switches socket outlets in the
6. E A E Bt Direct Digital Synthesis DDS PXI_CLK10 and OCXO or TCKO Routing Signals idien Determining Sources and Destinations ccccccesscesceseeseeseesecseesecsecseeseeseeaeeeeeeeees 3 14 Using Front Panel PFIs As Inputs s s ssseseseeeseseeseeessstserrersrserresesrersreeresrerereese 3 15 Using Front Panel PFIs As Outputs cceceesecseescescesceseeseeseceeceeceseeeeaeeaeenes 3 15 Using the PXI RTSI Triggers ccceccsesseesseseeseeeeeeeeeeceeceeceeceeceseeaeeaeeaeensenaeaes 3 16 Using the PXI Star Triggers 3 17 Choosing the Type of Routing 3 17 Asynchronous Routing 3 17 Synchronous Routing ccececcessessesseseeeeceeceeceeceaeeaeeaeeseaeeaeaecaecaecaecaeeneeeeeeees 3 18 Generating a Single Pulse Global Software Trigger ccceccesesseeseeseeeeeeeeneene 3 19 Using the PXI CEKIO PELD seis cesccscisscoatecuceecsvsesevsciacsscunce ites araa AEAT AT AEEA EIRA 3 20 National Instruments vii Contents Chapter 4 Calibration Factory Calibration snenia ath Bee A Sine aiets ai big Bi ees 4 1 OCXO Breq ueney j 25 cece nce res can eek aa ces a EEA can cds saa eT i a 4 1 TCXO Frequency PXT CLK10 Phasiinae eaten tease as E NEEN N Eoi 4 1 DDS Start Trigger Phase ccceessesscsscescesenseesecseeseeseescesceseeseeseseeseeeececececeaeeae 4 1 DDS Initial Phase Additional Information Appendix A Specifications Appendix B NI Services Glossary Index viii ni c
7. NI warrants that i its software products will perform substantially in accordance with the applicable documentation provided with the software and ii the software media will be free from defects in materials and workmanship If NI receives notice of a defect or non conformance during the applicable warranty period NI will in its discretion i repair or replace the affected product or ii refund the fees paid for the affected product Repaired or replaced Hardware will be warranted for the remainder of the original warranty period or ninety 90 days whichever is longer If NI elects to repair or replace the product NI may use new or refurbished parts or products that are equivalent to new in performance and reliability and are at least functionally equivalent to the original part or product You must obtain an RMA number from NI before returning any product to NI NI reserves the right to charge a fee for examining and testing Hardware not covered by the Limited Warranty This Limited Warranty does not apply if the defect of the product resulted from improper or inadequate maintenance installation repair or calibration performed by a party other than NI unauthorized modification improper environment use of an improper hardware or software key improper use or operation outside of the specification for the product improper voltages accident abuse or neglect or a hazard such as lightning flood or other act of nature THE REMEDIE
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9. Slot 2 to Slot lt 3 15 gt in a star configuration The electrical paths of each star line are closely matched to minimize intermodule skew An NI PXI 665x in Slot 2 can route signals to Slots lt 3 15 gt using the star trigger bus PFI lt 0 5 gt In Out The Programmable Function Interface pins on the NI PXI 665x route timing and triggering signals between multiple PXI chassis A wide variety of input and output signals can be routed to or from the PFI lines PXI_TRIG lt 0 7 gt In Out The PXI trigger bus consists of eight digital lines shared among all slots in the PXI chassis The NI PXI 665x can route a wide variety of signals to and from these lines Note PXI_TRIG lt 0 5 gt are also known as RTSI lt 0 5 gt in some hardware devices and APIs However PXI_TRIG lt 6 7 gt are not identical to RTSI lt 6 7 gt The remainder of this chapter describes how these signals are used acquired and generated by the NI PXI 665x hardware and explains how you can route the signals between various locations to synchronize multiple measurement devices and PXI chassis Clock Generation The NI PXI 6653 and NI PXI 6652 can generate two types of clock signals The first clock is generated using the onboard DDS chip and the second is generated with a precise 10 MHz oscillator The following sections describe the two types of clock generation and explain the considerations for choosing either type Direct Dig
10. at the same time Synchronous routing can thus remove uncertainty about when triggers are received If the delays through the system are such that an asynchronous trigger might arrive near the edge of the receiver clock the receiver might see the signal in the first clock cycle or it might see it in the second clock cycle However by synchronizing the signal you can eliminate the ambiguity and the signal will always be seen in the second clock cycle One useful feature of synchronous routing is that the signal can be propagated on either the rising or falling edge of the synchronization clock In addition the polarity of the destination signal can be inverted which is useful when handling active low digital signals Possible sources for synchronous routing include the following sources e Any front panel PFI pin e Any PXI star trigger line PXI_STAR lt 0 12 gt e Any PXI RTSI trigger line PXI_TRIG lt 0 7 gt e Global software trigger e The synchronization clock itself Note The possible destinations for a synchronous route are identical to those for an asynchronous route The destinations include any front panel PFI pin any PXI star trigger line or any PXI RTSI trigger line The synchronization clock for a synchronous route can be any of the following signals e 10 MHz PXI backplane clock signal e DDS clock on the NI PXI 6653 or NI PXI 6652 e Front panel PFI 0 Input e One of two divided copies of any of the prev
11. be varied over a small range The output frequency of the OCXO is adjusted using this constant to meet the specification listed in Appendix A Specifications This calibration applies only to the NI PXI 6653 TCXO Frequency The TCXO frequency can be varied over a small range The output frequency of the TCXO is adjusted using this constant to meet the specification listed in Appendix A Specifications This calibration applies only to the NI PXI 6652 PXI_CLK10 Phase When using the PLL to lock PXI_CLK10 to an external reference clock the phase between the clocks can be adjusted The time between rising edges of PXI_CLK10 and the input clock is minimized using this constant DDS Start Trigger Phase To start the DDS reliably the DDS start trigger must arrive within a certain window of time The phase of the DDS start trigger is controlled by this constant to meet the setup and hold time requirements of the DDS National Instruments 4 1 Chapter 4 Calibration DDS Initial Phase The phase of the DDS output is adjusted using this constant so that the DDS outputs from multiple NI PXI 6653 or NI PXI 6652 modules are aligned Additional Information Refer to ni com calibration for additional information on NI calibration services 4 2 ni com Specifications This appendix lists the system specifications for NI PPXI 665x modules These specifications are typical at 25 C unless otherwise stated 4 Note Specificati
12. fixed installation and stationary motors with permanent connections to fixed installations Measurement Category IV is for measurements performed at the primary electrical supply installation typically outside buildings Examples include electricity meters and measurements on primary overcurrent protection devices and on ripple control units ni com Installing and Configuring This chapter describes how to install the NI PX1I 665x hardware and software and how to configure the device Installing the Software Refer to the readme htm file that accompanies the N Sync CD for software installation directions Note Be sure to install the driver software before installing the NI PXI 665x hardware Installing the Hardware The following are general installation instructions Consult the chassis user manual or technical reference manual for specific instructions and warnings about installing new modules 1 2 Power off and unplug the chassis Choose an available PXI slot in the PXI chassis Note The NI PXI 665x is usually installed in Slot 2 8 Remove the filler panel for the PXI slot you chose in step 2 Ground yourself using a grounding strap or by touching a grounded object Follow the ESD protection precautions described in the Unpacking section of Chapter 1 ntroduction Insert the NI PXI 665x into the PXI slot Use the injector ejector handle to fully insert the module into the chassis Screw the front pa
13. in more detail in the Choosing the Type of Routing section You can independently select the output signal source for each PFI line from one of the following sources e Another PFI lt 0 5 gt e PXI RTSI triggers lt 0 7 gt PXI_TRIG lt 0 7 gt e PXI STAR lt 0 12 gt e Global software trigger e PFI synchronization clock The PFI synchronization clock may be any of the following signals e DDS clock e PXI CLK10 PFIO Input e Any of the previously listed signals divided by the first frequency divider 2 up to 512 e Any of the previously listed signals divided by the second frequency divider 2 up to 512 National Instruments 3 15 Chapter 3 Hardware Overview Refer to the Choosing the Type of Routing section for more information on the synchronization clock a Note The PFI synchronization clock is the same for all routing operations in which PFI lt 0 5 gt is defined as the output although the divide down ratio for this clock full rate first divider second divider may be chosen on a per route basis Using the PXI RTSI Triggers The PXI RTSI triggers go to all the slots in the chassis All modules receive the same PXI RTSI triggers so PXI RTSI trigger 0 is the same for Slot 2 as it is for Slot 3 and so on This feature makes the PXI RTSI triggers convenient in situations where you want for instance to start an acquisition on several devices at the same time because all modules will receive the sam
14. type Asynchronous Routing Asynchronous routing is the most straightforward method of routing signals Any asynchronous route can be defined in terms of two signal locations a source and a destination A digital pulse or train comes in on the source and is propagated to the destination When the source signal goes from low to high this rising edge is transferred to the destination after a propagation delay through the module Figure 3 8 illustrates an asynchronous routing operation Figure 3 8 Asynchronous Routing Operation Propagation Delay Trigger Input a 2 ae Trigger Output Some delay is always associated with an asynchronous route and this delay varies among NI PXI 665x modules depending on variations in temperature and chassis voltage Typical National Instruments 3 17 Chapter 3 Hardware Overview delay times in the NI PXI 665x for asynchronous routes between various sources and destinations are given in Appendix A Specifications Asynchronous routing works well if the total system delays are not too long for the application Propagation delay could be caused by the following reasons Output delay on the source e Propagation delay of the signal across the backplane s and cable s e Propagation delay of the signal through the NI PXI 665x e Time for the receiver to recognize the signal Both the source and the destination of an asynchronous routing operation on the NI PXI 665x can be any of the followin
15. 00 kHz typical to CILICTOIN prairies 1 5 pS ms 10 Hz to 100 kHz typical Recommended calibration interval TCXO Characteristics Nominal frequency cceseeseeseeseeeeeeneeneeneees 10 MHz Accuracy within 1 year of calibration adjustment within 0 C to 55 C operating temperature range cccececeeeeceeee 5 ppm This specification applies to all synchronous routes to the PXI_Star lines as well as asynchronous routes from the PFI inputs to the PXI_ Star lines 2 After 72 hours of continuous operation A 4 ni com NI PXI 665x User Manual Long term stability 1 ppm year Stability vs temperature 0 0 ccc cceeseeseeteereeeeees lt 1 6 ppm peak to peak within 0 C to 55 C operating temperature range Recommended calibration interval 04 1 year DDS Characteristics Frequency Tange 0 cece cece AEEA 1 Hz to 105 MHz Frequency resolution lt 1 1 uHz Frequency ACCUracy ccecseseecscscssseecstsssteescenees Equivalent to PXI_CLK10 accuracy Physical Chassis requirement ccececeeseeseeseeeeeeneene One 3U CompactPCI or PXI slot PXI Slot 2 for full functionality Front panel COMNCCtOLS eceeeeseeseereeneereeneene SMB male 50 Q Front panel indicators cceseseeseeseereeneeeeee Two tricolor LEDs green red and amber Recommended maximum cable length PFI CLKOUT DC to 10 MHz 006 200 m CLKOUT High Gain 105 MHZ3 100 m PFI
16. A and EISA It is achieving widespread acceptance as a standard for PCs and work stations it offers a theoretical maximum transfer rate of 132 Mbytes s Programmable Function Interface phase locked loop the measure of the stability of an instrument and its capability to give the same measurement over and over again for the same input signal the amount of time required for a signal to pass through a circuit PXI PXI star PXI Trig PXI_ Star synchronization clock R RTSI bus skew slave slot Slot 2 SMB synchronous NI PXI 665x User Manual a rugged open system for modular instrumentation based on CompactPCI with special mechanical electrical and software features The PXIbus standard was originally developed by National Instruments in 1997 and is now managed by the PXIbus Systems Alliance a special set of trigger lines in the PXI backplane for high accuracy device synchronization with minimal latencies on each PXI slot the clock signal that is used to synchronize the RTSI PXI triggers or PXI STAR triggers on an NI PXI 6653 Real Time System Integration bus the NI timing bus that connects DAQ devices directly by means of connectors on top of the devices for precise synchronization of functions seconds the actual time difference between two events that would ideally occur simultaneously Inter channel skew is an example of the time differences introduced by different characteristics of multiple ch
17. C OVto5 V Voltage level The lower limit is load dependent because of the AC coupling This limit is less than 1 MHz for high impedance loads A 2 ni com Absolute maximum input voltage ow Input threshold Voltage level Voltage resolution Hysteresis Asynchronous delay tpa PFI lt 0 5 gt to PXI_ TRIG lt 0 7 gt output PFI lt 0 5 gt to PXI STAR lt 0 12 gt output Synchronized trigger input setup time ietin S Synchronized trigger input hold time thoid Output Characteristics Frequency range Output impedance Output coupling Voltage level Absolute maximum applied voltage Synchronized trigger clock toont TIME teg irii i epii Output to output skew synchronous NI PXI 665x User Manual 5 25 V max 0 to 4 3 V software selectable 16 8 mV 8 bits 40 mV 50 mV 15 ns to 23 ns typical 10 ns to 19 ns typical 11 2 ns typical 10 8 ns typical DC to 105 MHz 50 Q nominal DC 0 to 1 6 V into 50 Q 0 to 3 3 V into open circuit typical 5 25 V max 8 4 ns typical 500 ps typical 1 Stresses beyond those listed can cause permanent damage to the device Exposure to absolute maximum rated conditions for extended periods of time can affect device reliability Functional operation of the device outside the conditions indicated in the operational parts of the specifications is not implied 2 Relative to PXI CLK10
18. CLKOUT Low Gain 105 MHz 30m Power Requirements ERVE EE REA A A E AN 2 A max EB BEV OT EEEE AATA 600 mA max AND W ENA AIA POE A 500 mA max A E E EEE TT 0 A max Environmental Operating Environment Ambient temperature range se sssesseeeeeeseeeeee e 0 to 55 C Tested in accordance with IEC 60068 2 1 and IEC 60068 2 2 Relative humidity range ceceecseseeseeseereee 10 to 90 noncondensing Tested in accordance with IEC 60068 2 56 1 Includes stability of TCXO and supporting circuitry 2 The DDS frequency inherits the relative frequency of PXI_CLK10 For example if you route the OCXO to PXI_CLK10 the DDS output inherits the same relative frequency accuracy as the OCXO output 3 Maximum cable length with a direct cable connection Loss from a signal splitter would reduce maximum cable length National Instruments A 5 Appendix A Specifications Maximum altitude ceeeesesseeeceecseeseeseeees 2 000 m at 25 C ambient temperature Pollution Degree cc ceececeeeseeseeseeeeeneeeenes 2 Indoor use only Storage Environment Ambient temperature range eee eeeee 20 to 70 C Tested in accordance with IEC 60068 2 1 and IEC 60068 2 2 Relative humidity range ceeeeeeeeeeeeeees 5 to 95 noncondensing Tested in accordance with IEC 60068 2 56 Shock and Vibration Operational SHOCK eeeeeeeeeseseeseeeeeeeeeeees 30 g peak half sine 11 ms pulse Tested in accordance
19. I 665x is shipped in an antistatic package to prevent electrostatic damage to the module Electrostatic discharge ESD can damage several components on the module A Caution Never touch the exposed pins of connectors To avoid such damage in handling the module take the following precautions e Ground yourself using a grounding strap or by touching a grounded object e Touch the antistatic package to a metal part of the computer chassis before removing the module from the package Remove the module from the package and inspect the module for loose components or any sign of damage Notify NI if the module appears damaged in any way Do not install a damaged module into the computer Store the NI PXI 665x in the antistatic envelope when not in use Software Programming Choices When programming the NI PXI 665x you can use NI application development environment ADE software such as LabVIEW or LabWindows CVI or you can use other ADEs such as Visual C C LabVIEW features interactive graphics a state of the art interface and a powerful graphical programming language The LabVIEW Data Acquisition VI Library a series of virtual instruments for using LabVIEW with National Instruments DAQ hardware is included with LabVIEW LabWindows CVI is a complete ANSI C ADE that features an interactive user interface code generation tools and the LabWindows CVI Data Acquisition and Easy I O libraries Safety Information The following s
20. PFI2 PFI3 PFI4 PFIS A 1 Access LED 4 CLKIN Connector 2 Active LED 5 PFI lt 0 5 gt Connectors 3 CLKOUT Connector 3 4 ni com NI PXI 665x User Manual NI PXI 6652 Front Panel Figure 3 4 shows the connectors and LEDs on the front panel of the NI PXI 6652 Figure 3 4 NI PXI 6652 Front Panel o Y7 NATIONAL gt INSTRUMENTS NI PXI 6652 Timing Module ACCESS ACTIVE 2 CLK OUT TFF PFIO PFI1 PFI2 PFI3 PFI4 A 1 Access LED 4 CLKIN Connector 2 Active LED 5 PFI lt 0 5 gt Connectors 3 CLKOUT Connector National Instruments 3 5 Chapter 3 Hardware Overview NI PXI 6651 Front Panel Figure 3 5 shows the connectors and LEDs on the front panel of the NI PXI 6651 Figure 3 5 NI PXI 6651 Front Panel o Yy NATIONAL D INSTRUMENTS NI PXI 6651 Timing Module 20040 ACCESS ACTIVE On CLK IN PFIO PFI1 A 1 Access LED 3 CLKIN Connector 2 Active LED 4 PFI lt 0 1 gt Connectors 3 6 ni com NI PXI 665x User Manual Access LED The Access LED indicates the communication status of the NI PXI 665x Refer to Figures 3 3 3 4 and 3 5 for the location of the Access LED Table 3 1 summarizes what the Access LED colors represent Table 3 1 Access LED Color Indication Color Status Off Module is not yet functional Green Driver has initialized the module Amber Modu
21. PLL 3 20 power requirement specifications A 5 programmable function interface See PFI PXI backplane clock 3 11 PXI star trigger bus See PXI_STAR lt 0 12 gt PXI star triggers front panel triggers as outputs 3 15 PXI trigger bus See PXI_TRIG lt 0 7 gt PXI_CLK10 Active LED 3 7 clock generation 3 11 DDS phase lock 3 9 front panel triggers as outputs 3 15 routing to the CLKOUT connector 3 8 using front panel PFIs as outputs 3 15 using the PXI_CLK10 PLL 3 20 using the PXI RTSI triggers 3 16 PXI_CLK10 phase calibration 4 1 PXI_CLK10_IN routing from the CLKIN connector 3 8 signal description table 3 9 PXI_CLK10_OUT signal description table 3 9 PXI_ STAR lt 0 12 gt asynchronous routing 3 18 signal description table 3 10 specifications A 4 using front panel PFIs as outputs 3 15 using the PXI star triggers 3 17 using the PXI RTSI triggers 3 16 NI PXI 665x User Manual PXL TRIG lt 0 7 gt asynchronous routing 3 18 signal description table 3 10 specifications A 4 using front panel PFIs as outputs 3 15 using the PXI star triggers 3 17 using the PXI RTSI triggers 3 16 PXI Trig PXI_ Star synchronization clock possible sources 3 16 using the PXI RTSI triggers 3 16 R reflections recommended cable configuration 3 15 related documentation ix resistors terminating signals note 3 15 routing architecture figure 3 13 routing signals front panel triggers using as inputs 3 15 usin
22. PXI NI PXI 665x User Manual Timing and Synchronization Module for PXI May 2015 7 NATIONAL 370711C 01 y INSTRUMENTS Worldwide Technical Support and Product Information ni con Worldwide Offices Visit ni com niglobal to access the branch office websites which provide up to date contact information support phone numbers email addresses and current events National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin Texas 78759 3504 USA Tel 512 683 0100 For further support information refer to the MI Services appendix To comment on National Instruments documentation refer to the National Instruments website at ni com info and enter the Info Code feedback 2004 2015 National Instruments All rights reserved Legal Information Limited Warranty This document is provided as is and is subject to being changed without notice in future editions For the latest version refer to ni com manuals NI reviews this document carefully for technical accuracy however NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS NI warrants that its hardware products will be free of defects in materials and workmanship that cause the product to fail to substantially conform to the applicable NI published specifications for one 1 year from the date of invoice For a period of ninety 90 days from the date of invoice
23. S SET FORTH ABOVE ARE EXCLUSIVE AND THE CUSTOMER S SOLE REMEDIES AND SHALL APPLY EVEN IF SUCH REMEDIES FAIL OF THEIR ESSENTIAL PURPOSE EXCEPT AS EXPRESSLY SET FORTH HEREIN PRODUCTS ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND AND NI DISCLAIMS ALL WARRANTIES EXPRESSED OR IMPLIED WITH RESPECT TO THE PRODUCTS INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE TITLE OR NON INFRINGEMENT AND ANY WARRANTIES THAT MAY ARISE FROM USAGE OF TRADE OR COURSE OF DEALING NI DOES NOT WARRANT GUARANTEE OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF OR THE RESULTS OF THE USE OF THE PRODUCTS IN TERMS OF CORRECTNESS ACCURACY RELIABILITY OR OTHERWISE NI DOES NOT WARRANT THAT THE OPERATION OF THE PRODUCTS WILL BE UNINTERRUPTED OR ERROR FREE In the event that you and NI have a separate signed written agreement with warranty terms covering the products then the warranty terms in the separate agreement shall control Copyright Under the copyright laws this publication may not be reproduced or transmitted in any form electronic or mechanical including photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation National Instruments respects the intellectual property of others and we ask our users to do the same NI software is protected by copyright and other intellectual property laws Where NI soft
24. S timing PXI_CLK10 and OCXO or TCXO The NI PXI 6653 features a precision 10 MHz OCXO The NI PXI 6652 features a precision 10 MHz TCXO The frequency accuracy of this clock is several orders of magnitude greater than the frequency accuracy of the native 10 MHz PXI backplane clock PXI_CLK10 The main source of error in most frequency reference oscillators is temperature variation The OCXO houses the oscillator circuit inside a sealed oven A resistive heater and automatic feedback circuit maintain a precisely controlled operating temperature for the oscillator This temperature control scheme minimizes frequency error to low enough levels that other sources of error become considerable The user can do two things to help mitigate these other error sources and achieve the best possible performance from the OCXO 1 Use a chassis that has as little variance in the 5 V supply as possible The OCXO has an error of 1 ppb for every 1 of inaccuracy in the voltage level of the 5 V supply The CompactPCI Specification requires all chassis to regulate the 5 V supply to 3 to 5 which results in a 3 ppb to 5 ppb possible error referenced to 5 V Improved performance can be obtained by using a chassis that specifies a tighter accuracy on the 5 V supply NI recommends using the NI PXI 1044 or NI PXI 1045 chassis as they have tighter power supply regulation performance 2 Avoid power cycling the OCXO The longer the OCXO is consistently powered the mor
25. T TCXO clock generation 3 11 clock using the PXI_CLK10 PLL 3 20 frequency calibration 4 1 overview 3 11 specifications A 4 temperature compensated oscillator See TCXO terminating signals with resistors note 3 15 threshold voltage 3 15 trigger bus See PXI_TRIG lt 0 7 gt 3 10 U unpacking the device 1 2 V voltage thresholds programming 3 15
26. TIES AIRCRAFT NAVIGATION AIR TRAFFIC CONTROL SYSTEMS LIFE SAVING OR LIFE SUSTAINING SYSTEMS OR SUCH OTHER MEDICAL DEVICES OR ANY OTHER APPLICATION IN WHICH THE FAILURE OF THE PRODUCT OR SERVICE COULD LEAD TO DEATH PERSONAL INJURY SEVERE PROPERTY DAMAGE OR ENVIRONMENTAL HARM COLLECTIVELY HIGH RISK USES FURTHER PRUDENT STEPS MUST BE TAKEN TO PROTECT AGAINST FAILURES INCLUDING PROVIDING BACK UP AND SHUT DOWN MECHANISMS NI EXPRESSLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS OF THE PRODUCTS OR SERVICES FOR HIGH RISK USES Compliance Electromagnetic Compatibility Information This hardware has been tested and found to comply with the applicable regulatory requirements and limits for electromagnetic compatibility EMC as indicated in the hardware s Declaration of Conformity DoC These requirements and limits are designed to provide reasonable protection against harmful interference when the hardware is operated in the intended electromagnetic environment In special cases for example when either highly sensitive or noisy hardware is being used in close proximity additional mitigation measures may have to be employed to minimize the potential for electromagnetic interference While this hardware is compliant with the applicable regulatory EMC requirements there is no guarantee that interference will not occur in a particular installation To minimize the potential for the hardware to cause interference to radio and
27. am 3 4 3 5 3 6 specifications A 1 CLKOUT connector 3 8 description 3 8 location diagram 3 4 3 5 3 6 signal description table 3 9 specifications A 2 clock generation DDS 3 10 overview 3 10 PXI_CLK10 and OCXO 3 11 color Access LED color explanation table 3 7 Active LED color explanation table 3 7 configuring the device Access LED 3 7 Active LED 3 7 overview 2 2 D DDS clock generation 3 10 DDS clock PFI synchronization clock 3 15 PXI Trig PXI Star synchronization clock 3 16 routing to the CLKOUT connector 3 8 front panel triggers as outputs 3 15 signal description table 3 9 specifications A 5 DDS initial phase calibration 4 2 DDS start trigger phase calibration 4 1 destinations possible destinations table 3 14 direct digital synthesis See DDS documentation related documentation ix E electromagnetic compatibility A 7 environmental management specifications A 7 environmental specifications A 5 equipment getting started 1 1 National Instruments l 1 Index F factory calibration 4 1 frequency tuning word 3 10 front panel See also CLKIN connector connector descriptions 3 8 NI PXI 6651 diagram 3 6 PFI 3 8 G generating a clock DDS 3 10 overview 3 10 PXI_CLK10 and TCXO 3 11 generating a single pulse trigger 3 19 getting started configuring the device 2 2 equipment 1 1 installing the hardware 2 1 installing the software 2 1 software prog
28. annels Skew can occur between channels on one module or between channels on separate modules intermodule skew a computer or peripheral device controlled by another computer the place in the computer or chassis in which a card or module can be installed the second slot in a PXI system which can house a master timing unit sub miniature type B a small coaxial signal connector that features a snap coupling for fast connection a property of an event that is synchronized to a reference clock National Instruments G 5 Glossary T tctoQ thoid tpa TRIG trigger tsetup V VI G 6 ni com clock to output time hold time propagation delay time trigger signal a digital signal that starts or times a hardware event for example starting a data acquisition operation setup time volts virtual instrument Index A Access LED color explanation table 3 7 overview 3 7 Active LED color explanation table 3 7 overview 3 7 asynchronous routing overview 3 17 sources and destinations 3 18 B block diagram routing architecture 3 13 C cable configuration 3 15 calibration additional information 4 2 DDS initial phase 4 2 DDS start trigger phase 4 1 factory calibration 4 1 OCXO frequency 4 1 PXI_CLK10 phase 4 1 TCXO frequency 4 1 CE compliance specifications A 7 changing the Active LED color tip 3 7 cleaning A 6 CLKIN connector description 3 8 location diagr
29. at www picmg org e PXI Specification Revision 2 1 available from www pxisa org e NI VISA User Manual available from ni com manuals e NI VISA Help included with the NI VISA software e NI Sync User Manual available from ni com manuals e NI PXI 665x Calibration Procedure available from ni com manuals National Instruments ix Introduction The NI PXI 665x timing and triggering modules enable you to pass PXI timing signals between two or more PXI chassis The NI PXI 665x modules generate and route clock signals between devices in multiple chassis providing a method for synchronizing multiple devices in a PXI system What You Need to Get Started To set up and use the NI PXI 665x you need the following items NI PXI 665x Timing and Triggering Module NI PXI 665x User Manual NI VISA NI Syne CD One of the following software packages and documentation LabVIEW LabWindows CVI Microsoft Visual C MSVC PXI chassis PXI embedded controller or a desktop computer connected to the PXI chassis using MXI 3 hardware If you are using the NI PXI 665x in a system to synchronize NI PXI 4472 NI PXI 5112 NI PXI 5411 NI PXI 6115 or E Series DAQ modules you can refer to the N Sync User Manual which you can find on the N Sync CD or download from ni com manuals National Instruments 1 1 Chapter 1 Introduction Unpacking The NI PX
30. at only nonconductive pollution occurs in most cases Occasionally however a temporary conductivity caused by condensation must be expected Pollution Degree 3 means that conductive pollution occurs or dry nonconductive pollution occurs that becomes conductive due to condensation You must insulate signal connections for the maximum voltage for which the product is rated Do not exceed the maximum ratings for the product Do not install wiring while the product is live with electrical signals Do not remove or add connector blocks when power is connected to the system Avoid contact between your body and the connector block signal when hot swapping modules Remove power from signal lines before connecting them to or disconnecting them from the product Operate the product at or below the measurement category marked on the hardware label Measurement circuits are subjected to working voltages and transient stresses overvoltage from the circuit to which they are connected during measurement or test Measurement categories establish standard impulse withstand voltage levels that commonly occur in electrical distribution systems The following is a description of measurement categories e Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage This category is for measurements of voltages from specially protected secondary circuits Such voltage
31. clock directly the OCXO or TCXO can phase lock to an external frequency source This operation is discussed in detail in the Using the PXI_CLK10 PLL section Routing Signals The NI PXI 665x has versatile trigger routing capabilities It can route signals to and from the front panel the PXI star triggers and the PXI RTSI triggers The NI PXI 665x also can route a 10 MHz clock from CLKIN to the PXI 10 MHz reference clock The NI PXI 6653 and NI PXI 6652 can lock the OCXO or TCXO to an external reference clock and send that to the PXI 10 MHz reference clock The NI PXI 6653 and NI PXI 6652 can route the OCXO TCXO DDS or PXI 10 MHz reference clock to CLKOUT Figures 3 6 and 3 7 summarize the routing features of the NI PXI 6653 and NI PXI 6652 The remainder of this chapter details the capabilities and constraints of the routing architecture 3 12 ni com Signal Routing Architecture NI PXI 665x User Manual Figure 3 6 High Level Schematic of NI PXI 6653 and NI PXI 6652 Selection lt 5 PXI_STAR lt 0 12 gt m Selection PFI 0H Circuitry je PXI_TRIG lt 0 7 gt 28 gt Circuitry gt PXI STAR 0 PFI lt 0 5 gt and SOURCE Selection _4 Software Trigger are T gt Selection PFI 1 Circuitry le routed to SOURCE l Circuitry gt PXILSTAR 1 of each Selection ad e a Circuitry block
32. connected to the SMB input pin of the same name CLKIN can serve as PXI_CLK10_IN or be used as a phase lock reference for the OCXO CLKOUT is the signal on the SMB output pin of the same name Either the OCXO clock or PXI_CLK10 can be routed to CLKOUT hardware component that controls timing for reading from or writing to groups a Eurocard configuration of the PCI bus for industrial applications digital to analog digital to analog converter an electronic device that converts a digital number into a corresponding analog voltage or current data acquisition 1 collecting and measuring electrical signals from sensors transducers and test probes or fixtures and inputting them to a computer for processing 2 collecting and measuring the same kinds of electrical signals with A D and or DIO devices plugged into a computer and possibly generating control signals with D A and or DIO devices in the same computer DC DDS E EEPROM ESD F frequency frequency tuning word front panel H LabVIEW LED NI PXI 665x User Manual direct current direct digital synthesis a method of creating a clock with a programmable frequency electrically erasable programmable read only memory ROM that can be erased with an electrical signal and reprogrammed electrostatic discharge the basic unit of rate measured in events or oscillations per second using a frequency counter or spectrum analyzer Frequency is the recip
33. e stable the aging rate will be For the tightest performance requirements the OCXO can be calibrated by the user in the same system in which the NI PXI 6653 is normally used Doing so will calibrate out error from the power supply variance and if done at the normal operating temperature reduce the error from temperature variance Refer to the NI PXI 665x Calibration Procedure for more information on calibrating the OCXO The TCXO contains circuitry to measure the temperature of the oscillator It uses the temperature to adjust its frequency output according to the crystal s known frequency variation across its operating temperature range National Instruments 3 11 Chapter 3 Hardware Overview An NI PXI 6653 or NI PXI 6652 module in Slot 2 of a PXI chassis can replace the native PXI 10 MHz backplane frequency reference clock PXI_CLK10 with the more stable and accurate output of the OCXO or TCXO All other PXI modules in the chassis that reference the 10 MHz backplane clock benefit from this more accurate frequency reference Furthermore the DDS chip on the NI PXI 6653 or NI PXI 6652 references its output to the backplane clock and also takes advantage of the superior OCXO or TCXO accuracy The OCXO or TCXO does not automatically replace the native 10 MHz clock this feature must be explicitly enabled in software The OCXO or TCXO output also can be routed out to the CLKOUT connector In addition to replacing the native backplane
34. e routed programmatically from the oven controlled crystal oscillator OCXO or temperature compensated crystal oscillator TCXO direct digital synthesis DDS or backplane clock PXI_CLK10 PFI lt 0 5 gt Programmable Function Interface lt 0 5 gt The NI PXI 6651 supports only PFI 0 1 These connectors can be used for either input or output Additionally PFI 0 can be used as a clock input for internally synchronizing other signals Refer to the Synchronous Routing section for more information about this functionality You can program the behavior of these PFI connections individually Refer to Figures 3 3 3 4 and 3 5 for diagrams showing the locations of these connections on the NI PXI 665x front panel 3 8 Caution Connections that exceed any of the maximum ratings of input or output signals on the NI PXI 665x can damage the module and the computer NI is not liable for any damage resulting from such signal connections ni com Hardware Features NI PXI 665x User Manual The NI PXI 6653 and NI PXI 6652 perform two broad functions e Generating clock and trigger signals e Routing internally or externally generated signals from one location to another The NI PXI 6651 is primarily a slave module and can only route externally generated signals Table 3 3 outlines the function and direction of the signals discussed in detail in the remainder of this chapter Table 3 3 Signal Descriptions
35. e trigger The frequency on the PXI RTSI triggers should not exceed 20 MHz to preserve signal integrity The signals do not reach each slot at precisely the same time A difference of several nanoseconds between slots can occur in an eight slot chassis However this delay is not a problem for many applications You can route signals to the PXI RTSI triggers from PFI lt 0 5 gt from the PXI star triggers or from other PXI RTSI triggers You also can route PXI_CLK10 or the DDS clock to a PXI RTSI trigger line PXI_TRIG lt 0 7 gt using the synchronization clock You can independently select the output signal source for each PXI RTSI trigger line from one of the following sources e PFI lt 0 5 gt e Another PXI RTSI trigger lt 0 7 gt PXIL_TRIG lt 0 7 gt e PXI STAR lt 0 12 gt e Global software trigger e PXI Trig PXI_ Star synchronization clock The PXI_Trig PXI_Star synchronization clock may be any of the following signals e DDS clock e PXI_CLK10 PFI 0 Input e Any of the previously listed signals divided by the first frequency divider 2 up to 512 e Any of the previously listed signals divided by the second frequency divider 2 up to 512 Refer to the Choosing the Type of Routing section for more information about the synchronization clock Note The PXI Trig PXI Star synchronization clock is the same for all routing operations in which PXI_TRIG lt 0 7 gt or PXI_ STAR lt 0 12 gt is defined as the o
36. ection contains important safety information that you must follow when installing and using the product Do not operate the product in a manner not specified in this document Misuse of the product can result in a hazard You can compromise the safety protection built into the product if the product is damaged in any way If the product is damaged return it to National Instruments for repair Do not substitute parts or modify the product except as described in this document Use the product only with the chassis modules accessories and cables specified in the installation instructions You must have all covers and filler panels installed during operation of the product 1 2 ni com NI PXI 665x User Manual Do not operate the product in an explosive atmosphere or where there may be flammable gases or fumes If you must operate the product in such an environment it must be in a suitably rated enclosure If you need to clean the product use a soft nonmetallic brush The product must be completely dry and free from contaminants before you return it to service Operate the product only at or below Pollution Degree 2 Pollution is foreign matter in a solid liquid or gaseous state that can reduce dielectric strength or surface resistivity The following is a description of pollution degrees e Pollution Degree 1 means no pollution or only dry nonconductive pollution occurs The pollution has no influence e Pollution Degree 2 means th
37. facilities worldwide courses on site at your facility and online courses to serve your individual needs Technical Support Support at ni com support includes the following resources Self Help Technical Resources Visit ni com support for software drivers and updates a searchable KnowledgeBase product manuals step by step troubleshooting wizards thousands of example programs tutorials application notes instrument drivers and so on Registered users also receive access to the NI Discussion Forums at ni com forums NI Applications Engineers make sure every question submitted online receives an answer Software Support Service Membership the Standard Service Program SSP is a renewable one year subscription included with almost every NI software product including NI Developer Suite This program entitles members to direct access to NI Applications Engineers through phone and email for one to one technical support as well as exclusive access to online training modules at ni com self paced training NI also offers flexible extended contract options that guarantee your SSP benefits are available without interruption for as long as you need them Visit ni com ssp for more information Declaration of Conformity DoC A DoC is our claim of compliance with the Council of the European Communities using the manufacturer s declaration of conformity This system affords the user protection for electromag
38. g as outputs 3 15 generating a single pulse trigger 3 19 overview 3 12 possible sources and destinations table 3 14 PXI star triggers 3 17 RTSI PXI triggers 3 16 types asynchronous 3 17 synchronous 3 18 RTSI signal names note 3 10 RTSI PXI triggers front panel triggers as outputs 3 15 S safety specifications A 6 signal descriptions table 3 9 signal source 3 14 possible sources table 3 14 single pulse generation 3 19 National Instruments 1 3 Index software installing 2 1 programming choices overview 1 2 source possible sources table 3 14 signal 3 14 specifications star triggers See PXI_STAR lt 0 12 gt 3 10 CE compliance A 7 cleaning A 6 CLKIN characteristics A 1 CLKOUT characteristics A 2 DDS characteristics A 5 electromagnetic compatibility A 7 environmental A 5 environmental management A 7 OCXO characteristics A 4 online product certification A 7 PFI lt 0 5 gt input characteristics A 2 output characteristics A 3 physical A 5 power requirements A 5 PXI trigger characteristics A 4 PXI_ STAR trigger characteristics A 4 safety A 6 TCXO characteristics A 4 PFI synchronization clock 3 18 synchronization clock See also PXI _Trig PXI Star synchronization clock overview 3 18 synchronous routing l 4 overview 3 18 possible sources and destinations 3 19 synchronization clock sources 3 19 timing diagram 3 18 ni com
39. g lines e Any front panel PFI pin PFI lt 0 5 e Any PXI star trigger line PXI_STAR lt 0 12 gt e Any PXI RTSI trigger line PXI_TRIG lt 0 7 gt Synchronous Routing A synchronous routing operation is defined in terms of three signal locations a source a destination and a synchronization clock A digital signal comes in on the source and is propagated to the destination after the edge has been realigned with the synchronization clock Unlike asynchronous routing the output of a synchronous routing operation does not directly follow the input after a propagation delay Instead the output waits for the next rising edge of the clock before it follows the input Thus the output is said to be synchronous with this clock Figure 3 9 shows a timing diagram that illustrates synchronous routing Figure 3 9 Synchronous Routing Operation Setup Hold Time Time 1 i tsetup r thol me Pid a Trigger Input Synchronization lock 1 Glog Clock to Output Time totog a La Trigger Output i 3 18 ni com NI PXI 665x User Manual Synchronous routing can send triggers to several places in the same clock cycle or send the trigger to those same places after a deterministic skew of a known number of clock cycles If a signal arrives at two chassis within the same clock cycle each NI PXI 665x realigns the signal with the synchronization clock and distributes it to the modules in each chassis
40. icrosoft Corporation Windows is a registered trademark of Microsoft Corporation in the United States and other countries Other product and company names mentioned herein are trademarks or trade names of their respective companies Members of the National Instruments Alliance Partner Program are business entities independent from National Instruments and have no agency partnership or joint venture relationship with National Instruments Patents For patents covering National Instruments products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the National Instruments Patent Notice at ni com patents Export Compliance Information Refer to the Export Compliance Information at ni com legal export compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes ECCNs and other import export data WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS YOU ARE ULTIMATELY RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY AND RELIABILITY OF THE PRODUCTS WHENEVER THE PRODUCTS ARE INCORPORATED IN YOUR SYSTEM OR APPLICATION INCLUDING THE APPROPRIATE DESIGN PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION PRODUCTS ARE NOT DESIGNED MANUFACTURED OR TESTED FOR USE IN LIFE OR SAFETY CRITICAL SYSTEMS HAZARDOUS ENVIRONMENTS OR ANY OTHER ENVIRONMENTS REQUIRING FAIL SAFE PERFORMANCE INCLUDING IN THE OPERATION OF NUCLEAR FACILI
41. inations are listed in the horizontal heading row and the sources are listed in the column at the far left A in a cell indicates that the source and destination combination defined by that cell is a valid routing combination Table 3 4 Sources and Destinations for NI PXI 665x Signal Routing Operations Destinations Front Panel Backplane Onboard PXI PXL Star RTSI PXI pn Z CLKOUT PFI lt 0 5 gt CLK10 IN Trigger TRIG Refi o lt 0 12 gt lt 0 7 gt e G PLL f a CLKIN vt vi v v vt v o d L PFI lt 0 5 gt v v v NI PXI 6651 0 1 Only PXI _CLK10 v v v v o PXI STAR v v v ols lt 0 12 gt Q oj amp 5 0 RTSI PXI v v v e oO TRIG lt 0 7 gt OCXO or v vt v vi vi TCXO NI PXI1 6653 and NI PXI 6652 Only o i g DDS v v v v 2 NIPXI 6653 S and NI PXI 6652 Only Global v v v Software Trigger Can be accomplished in two stages by routing source to PXI_CLK10_IN replacing PXI_CLK10 with PXI _CLK10_IN occurs automatically in most chassis and then routing PXI_CLK10 to the destination The source must be 10 MHz 3 14 ni com NI PXI 665x User Manual Using Front Panel PFls As Inputs The front panel PFIs can receive external signals from 0 to 5 V They can be terminated programmatically with 50 Q resistances to match the cable impedance and minimize reflections Note Terminating the signals with a 50 Q re
42. iously listed three signals The NI PX1I 665x includes two clock divider circuits that can divide the synchronization clock signals by any power of 2 up to 512 Refer to Figures 3 6 and 3 7 for an illustration of how the NI PXI 665x performs synchronous routing operations Generating a Single Pulse Global Software Trigger The global software trigger is a single pulse with programmable delay that is fired on a software command This signal is always routed synchronously with a clock Therefore asynchronous routing is not supported when the signal source is the global software trigger The software trigger can be delayed by up to 15 clock cycles on a per route basis This feature is useful if a single pulse must be sent to several destinations with significantly different National Instruments 3 19 Chapter 3 Hardware Overview propagation delays By delaying the pulse on the routes with shorter paths you can compensate for the propagation delay An example of such a situation would be when a trigger pulse must arrive nearly simultaneously at the local backplane and the backplane of another chassis separated by 50 m of coaxial cable Using the PXI_CLK10 PLL A module in Slot 2 of a PXI chassis can replace the PXI_CLK10 reference clock The NI PXI 665x offers three options for this replacement This section describes each option The first option is to replace PXI_CLK10 directly with the OCXO output on the NI PXI 6653 or TCXO outp
43. ital Synthesis DDS DDS is a method of generating a clock with programmable frequency DDS consists of a frequency tuning word an accumulator a sine lookup table a D A converter DAC and a comparator The frequency tuning word is a number that specifies the desired frequency Each master clock cycle the frequency tuning word is added to the accumulator which rolls over when it gets to its maximum value The accumulator value is used to get a point in the sine lookup table which is converted to an analog voltage by the DAC For example if the sine table is 128 points long 3 10 ni com NI PXI 665x User Manual and the frequency tuning word is one the accumulator takes 128 clock cycles to output one sine wave If you change the frequency tuning word to 3 the accumulator steps through the sine table three times as fast and outputs a sine wave in 128 3 or 42 6 clock cycles The output of the DAC is run through an analog filter to smooth the sine wave The filtered output is then run through a comparator which changes the output to a square wave with the specified frequency You can specify the programmable DDS frequency on the NI PXI 6653 and NI PXI 6652 with a precision of approximately 1 Hz within the range 1 Hz to 105 MHz The accuracy of the frequency depends on the PXI_CLK10 reference clock so a precise 10 MHz source improves the accuracy of the DDS output You can replace the 10 MHz clock with the OCXO for more accurate DD
44. le is being accessed The Access LED flashes amber for 50 ms when the module is accessed Active LED The Active LED can indicate an error or phase locked loop PLL activity You can change the Active LED to amber unless an error overrides the selection Refer to Figures 3 3 3 4 and 3 5 for the location of the Active LED Q Tip Changing the Active LED color to amber is helpful when you want to identify devices in a multichassis situation or when you want an indication that your application has reached a predetermined section of the code Table 3 2 illustrates the meaning of each Active LED color Table 3 2 Active LED Color Quick Reference Table PXI_CLK10 Color Stopped PLL Error User Setting PLL Active Red Yes Yes Amber No No Yes Green No No No Yes Off No No No No Note A red Active LED can indicate that either PXI_CLK10 has stopped or that there is a PLL error National Instruments 3 7 Chapter 3 Hardware Overview Connectors This section describes the connectors on the front panel of the NI PXI 665x CLKIN Clock Input This connector supplies the module with a clock that can be programmatically routed to the onboard PLL for use as a reference or routed directly to the PXI backplane PXI_CLK10_IN for distribution to the other modules in the chassis CLKOUT NI PXI 6653 and NI PXI 6652 only Clock Output This connector is used to source a clock that can b
45. ly approved by National Instruments could void the user s right to operate the hardware under the local regulatory rules 1 The Declaration of Conformity DoC contains important EMC compliance information and instructions for the user or installer To obtain the DoC for this product visit ni com certification search by model number or product line and click the appropriate link in the Certification column Contents About This Manual National Instruments Documentation ccccccccccessecesssseeseeceesecessecessecceesecesssseseeecesseeens ix Related Documentation ressens aee E r E EESE ix Chapter 1 Introduction What You Need to Get Started innan Su ade ea a Unpack gonone Software Programming Choices s Safety Information vevesces eis dees ieee sees ee Reset eee ad ae REAA de eel Chapter 2 Installing and Configuring Installing the Somware nanei E E E E E AES 2 1 Installing the Hardware ninrin nr eE EKE ENE KEK No Ei Ea AEREE E 2 1 Configuring the Module cccccceecceccescesceseesesessecsecsecaecaeeseesceaeeseeseeseeeeeeeeceseeeeteteeenees 2 2 Chapter 3 Hardware Overview NI PXI 6653 Front Panel NI PXI 6652 Front Panel NI PXI 6651 Front Panel PACCOSS LB DAENT E E EE EN E E E E Seer rsteeabane Active LEDin a ces sauces A E E AA E E EEEE E AE E CONNECTOTS airneis rea Tarere EE AE EAE eE AEAEE ETANTE ATA Hard ware Featur ssonnyini ninaa a A EE NE I EREE A AE ETE e T0 0 ERNE E EE A ET EEE E
46. ments of applicable European Directives as follows e 2006 95 EC Low Voltage Directive safety e 2004 108 EC Electromagnetic Compatibility Directive EMC Online Product Certification Refer to the product Declaration of Conformity DoC for additional regulatory compliance information To obtain product certifications and the DoC for this product visit ni com certification search by model number or product line and click the appropriate link in the Certification column Environmental Management NI is committed to designing and manufacturing products in an environmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers For additional environmental information refer to the Minimize Our Environmental Impact web page at ni com environment This page contains the environmental regulations and directives with which NI complies as well as other environmental information not included in this document National Instruments A 7 Appendix A Specifications Waste Electrical and Electronic Equipment WEEE psd EU Customers At the end of the product life cycle all products must be sent to dai a WEEE recycling center For more information about WEEE recycling centers National Instruments WEFE initiatives and compliance with WEEE Directive 2002 96 EC on Waste and Electronic Equipment visit ni com environment weee EFAS mAh RE
47. nel of the device to the front panel mounting rail of the chassis Visually verify the installation Make sure the module is not touching other modules or components and is fully inserted into the slot Plug in and power on the chassis The NI PXI 665x is now installed National Instruments 2 1 Chapter 2 Installing and Configuring Configuring the Module The NI PXI 665x is completely software configurable The system software automatically allocates all module resources The two LEDs on the front panel provide information about module status The front panel description sections of Chapter 3 Hardware Overview describe the LEDs in greater detail 2 2 ni com Hardware Overview This chapter presents an overview of the hardware functions of the NI PXI 6653 NI PXI 6652 and NI PXI 6651 Figure 3 1 provides a functional overview of the NI PXI 6653 and NI PXI 6652 hardware Figure 3 2 provides a functional overview of the NI PXI 6651 hardware National Instruments 3 1 Chapter 3 Hardware Overview Figure 3 1 Functional Overview of the NI PXI 6653 and NI PXI 6652 CLKIN gt AC Coupled Clock Detector pe PXI_CLK10_IN CLKOUT PFI O OCXO Clock PEL OCXO 6653 TCXO 6652 OCXO Calibration DAC PXI_CLK10 DDS DDS Clock gt Driver Comparator 4
48. netic compatibility EMC and product safety You can obtain the DoC for your product by visiting ni com certification or contact your local office at ni com contact You also can visit the Worldwide Offices section of ni com niglobal to access the branch office websites which provide up to date contact information support phone numbers email addresses and current events B 2 ni com Glossary Symbol Prefix Value p pico 10 12 n nano 10 u micro 10 6 m milli 103 k kilo 103 M mega 106 Symbols percent plus or minus positive of or plus negative of or minus per a degree Q ohm A accumulator a part where numbers are totaled or stored ADE application development environment asynchronous a property of an event that occurs at an arbitrary time without synchronization to a reference clock National Instruments G 1 Glossary B backplane bus CLKIN CLKOUT clock CompactPCI D D A DAC DAQ G 2 ni com an assembly typically a printed circuit board PCB with 96 pin connectors and signal paths that bus the connector pins PXI systems have two connectors called the J1 and J2 connectors the group of conductors that interconnect individual circuitry in a computer Typically a bus is the expansion vehicle to which I O or other devices are connected An example of a PC bus is the PCI bus Celsius CLKIN is a signal
49. om About This Manual Thank you for purchasing the National Instruments NI PXI 665x Timing and Synchronization Module The NI PXI 665x enables you to pass PXI timing and trigger signals between two or more PXI chassis The NI PXI 665x can generate and route clock signals between devices in multiple chassis providing a method to synchronize multiple devices in a multichassis PXI system This manual describes the electrical and mechanical aspects of the NI PXI 665x and contains information concerning its operation and programming National Instruments Documentation The NI PXI 665x User Manual is one piece of the documentation set for your measurement system You could have any of several other documents describing your hardware and software Use the documentation you have as follows e Measurement hardware documentation This documentation contains detailed information about the measurement hardware that plugs into or is connected to the computer Use this documentation for hardware installation and configuration instructions specifications about the measurement hardware and application hints Software documentation Refer to the N Sync User Manual available at ni com manuals You can download NI documentation from ni com manuals Related Documentation The following documents contain information that you might find helpful as you read this manual e PICMG 2 0 R3 0 CompactPCI Core Specification available from PICMG
50. ons are subject to change without notice CLKIN Characteristics CLKIN fundamental frequency range cceeeccccsesesescseseecscsestecesees 1 MHz to 105 MHz sine or square wave Input impedance ccecececeseeseeseeteeeeeteeeeeees 50 Q nominal Input coupling 0 eee eee eeeeereeecneeeeeeeeeeeeneees AC Voltage tange a ccsscsccsstesissassevsassccestessentestestestestie 400 mV to 5 Vp p Absolute maximum input voltage 6 Vp p max CLKIN to PXI CLK10_IN delay Uncompensated ccccseeseeseeseeeeeeeeeeee 14 ns to 14 7 ns typical PLL compensated c csceseseseeeeeseeee 1 ns max CLKIN frequency accuracy requirement For PLL and OCXO nsien 1 5 ppm For PLL and TCXO nsss 5 0 ppm For replacing PXI_CLK10 mo PLL sssiccnntascctaiiantandiieadionees 100 ppm Jitter added to CLKIN Without PLD sc scztistscrssszsevetestbciver verse sedeees 0 5 pS ms 10 Hz to 100 kHz typical With PEE co satses Rvevedeusvedeeantdceeadaets loucne des sus 0 6 pS ms 10 Hz to 100 kHz typical Duty cycle distortion of CLKIN to PXI_CLK10_IN Without PLL cee cccecceescceesecesssecsseeeessees 1 max Required input duty cycle When USING PLL i ssiessssssssvascsdedscessssese inanarsan 45 to 55 CLKIN fundamental frequency can be any multiple of 1 MHz within the range specified when the PLL is engaged and PXI_CLK10 is locking to it The frequency must be 10 MHz when replacing PXI_CLK10 without the PLL Stresses beyond tho
51. ramming choices 1 2 unpacking 1 2 global software trigger generating a single pulse 3 19 using front panel PFIs as outputs 3 15 using the PXI star triggers 3 17 using the PXI RTSI triggers 3 16 H hardware calibration 4 1 configuring 2 2 connector descriptions 3 8 installing 2 1 overview 3 9 installation hardware 2 1 software 2 1 l 2 ni com L LED Access LED 3 7 Active LED 3 7 light emitting diode See LED M maximum signal rating caution 3 8 N NI PXI 6651 parts locator diagram 3 6 NI PXI 665x configuration 2 2 connectors 3 8 functional overview 3 9 installation hardware 2 1 software 2 1 O OCXO clock generation 3 11 clock using the PXI_CLK10 PLL 3 20 frequency calibration 4 1 OCXO clock routing to the CLKOUT connector 3 8 overview 3 11 specifications A 4 oven controlled crystal oscillator See OCXO P PFI PFI lt 0 5 gt connector description 3 8 location diagram 3 4 3 5 3 6 signal description table 3 10 PFI lt 0 5 gt signals asynchronous routing 3 18 front panel PFIs as inputs 3 15 front panel triggers as outputs 3 15 specifications A 2 using front panel PFIs as inputs 3 15 using front panel PFIs as outputs 3 15 PFI synchronization clock 3 8 possible sources 3 15 using front panel PFIs as outputs 3 15 phase locked loop See PLL physical specifications A 5 PLL Active LED 3 7 routing from the CLKIN connector 3 8 using the PXI_CLK10
52. rence that is a multiple of 1 MHz such as 13 or 5 MHz you can frequency lock the chassis to it If CLKIN stops or becomes disconnected PXI CLK10 is still present in the chassis If CLKIN is 10 MHz the NI PXI 6653 or NI PXI 6652 can compensate for distribution delays in the backplane The feedback in the PLL comes from PXI_CLK10 This PLL makes it possible for the NI PXI 6653 or NI PXI 6652 to align clock edges at CLKIN with the edges of PXI_CLK10 that the modules receive If you split an external accurate 10 MHz reference and route it to two chassis they can both lock to it The result is a tighter synchronization of PXI_CLK10 on the chassis ni com Calibration This chapter discusses the calibration of the NI PXI 665x Calibration consists of verifying the measurement accuracy of a device and correcting for any measurement error The NI PXI 665x is factory calibrated before shipment at approximately 25 C to the levels indicated in Appendix A Specifications The associated calibration constants the corrections that were needed to meet specifications are stored in the onboard nonvolatile memory EEPROM The driver software uses these stored values Factory Calibration The factory calibration of the NI PXI 665x involves calculating and storing four calibration constants These values control the accuracy of four features of the device which are discussed in the following sections OCXO Frequency The OCXO frequency can
53. rocal of the period of a signal a number that specifies the frequency the physical front panel of an instrument or other hardware hertz the number of scans read or updates written per second inch or inches the rapid variation of a clock or sampling frequency from an ideal constant frequency a graphical programming language light emitting diode a semiconductor light source National Instruments G 3 Glossary M master Measurement amp Automation Explorer MAX N NI DAQ O OCXO oscillator output impedance PCI PFI PLL precision propagation delay G 4 ni com the requesting or controlling device in a master slave configuration a controlled centralized configuration environment that allows you to configure all of your National Instruments DAQ GPIB IMAQ IVI Motion VISA and VXI devices National Instruments driver software for DAQ hardware oven controlled crystal oscillator a device that generates a fixed frequency signal An oscillator most often generates signals by using oscillating crystals but also may use tuned networks lasers or atomic clock sources The most important specifications on oscillators are frequency accuracy frequency stability and phase noise the measured resistance and capacitance between the output terminals of a circuit Peripheral Component Interconnect a high performance expansion bus architecture originally developed by Intel to replace IS
54. se listed can cause permanent damage to the device Exposure to absolute maximum rated conditions for extended periods of time can affect device reliability Functional operation of the device outside the conditions indicated in the operational parts of the specification is not implied i w This is a requirement of the PXI specification National Instruments A 1 Appendix A Specifications CLKOUT Characteristics Output frequency From PXE CEK10 sient aas 10 MHz From OCXO TCXO woe ceceeeseeeeneees 10 MHz FROIN DDS sis cvessicessuvsieevsschcevtobiey a aeae 1 MHz to 105 MHz 40 to 60 50 Q nominal Duty cycle Output impedance Output coupling 0 ec eceesecseceeeeseeseeneeeeeeeees AC Amplitude software configurable to two voltage levels low and high drive Open Load Square Wave Low Drive 2 0 Vp p typical High Drive 5 0 Vp p typical 50 Q Load Square Wave Low Drive 1 0 Vp p typical High Drive 2 5 Vp p typical Square wave rise fall time 10 to 90 LOW dries esis iciiieecscikseeceetsesssadonavsdevsees 0 5 ns min 2 5 ns max High drive eceeceeceeseeeeeceeeeeceseeseseeeeeeeees 0 5 ns min 2 5 ns max PFI lt 0 5 gt Input Characteristics Frequency range sherigini DC to 105 MHz Input impedance ccececescescesseseeseesecseeseeeenee 50 Q nominal or 1 kQ 10 35 pF software selectable Input Coupling eee ee eceeseeeeseeereeeeeeeeneeees D
55. sistance is recommended when the source is another NI PXI 665x or any other source with a 50 Q output The voltage thresholds for the front panel PFI inputs are programmable The input signal is generated by comparing the input voltage on the PFI connectors to the voltage output of software programmable DACs The thresholds for the PFI lines are individually programmable which is useful if you are importing signals from multiple sources with different voltage swings The front panel PFI inputs can be routed to any PXI star triggers PXI RTSI triggers or other front panel PFI outputs Using Front Panel PFls As Outputs The front panel PFI outputs are 3 3 V drivers with 50 output impedance The outputs can drive 50 Q loads such as a 50 Q coaxial cable with a 50 Q receiver This cable configuration is the recommended setup to minimize reflections With this configuration the receiver sees a single 1 6 V step a 3 3 V step split across the 50 Q resistors at the source and the destination You also can drive a 50 Q cable with a high impedance load The destination sees a single step to 3 3 V but the source sees a reflection This cable configuration is acceptable for low frequency signals or short cables You can select the signal source from the front panel triggers PFI lt 0 5 gt the PXI star triggers the PXI RTSI triggers or the synchronization clock PXI_CLK10 the DDS clock or PFI 0 The synchronization clock concept is explained
56. television reception or to experience unacceptable performance degradation install and use this hardware in strict accordance with the instructions in the hardware documentation and the DoC If this hardware does cause interference with licensed radio communications services or other nearby electronics which can be determined by turning the hardware off and on you are encouraged to try to correct the interference by one or more of the following measures e Reorient the antenna of the receiver the device suffering interference e Relocate the transmitter the device generating interference with respect to the receiver e Plug the transmitter into a different outlet so that the transmitter and the receiver are on different branch circuits Some hardware may require the use of a metal shielded enclosure windowless version to meet the EMC requirements for special EMC environments such as for marine use or in heavy industrial areas Refer to the hardware s user documentation and the DoC for product installation requirements When the hardware is connected to a test object or to test leads the system may become more sensitive to disturbances or may cause interference in the local electromagnetic environment Operation of this hardware in a residential area is likely to cause harmful interference Users are required to correct the interference at their own expense or cease operation of the hardware Changes or modifications not express
57. tendable up to five years NI offers repair services performed in a timely manner by highly trained factory technicians using only original parts at a National Instruments service center Calibration Through regular calibration you can quantify and improve the measurement performance of an instrument NI provides state of the art calibration services If your product supports calibration you can obtain the calibration certificate for your product at ni com calibration System Integration If you have time constraints limited in house technical resources or other project challenges National Instruments Alliance Partner members can help To learn more call your local NI office or visit ni com alliance National Instruments B 1 Appendix B NI Services For information about other technical support options in your area visit ni com services Training and Certification The NI training and certification program is the most effective way to increase application development proficiency and productivity Visit ni com training for more information The Skills Guide assists you in identifying the proficiency requirements of your current application and gives you options for obtaining those skills consistent with your time and budget constraints and personal learning preferences Visit ni com skills guide to see these custom paths Nloffers courses in several languages and formats including instructor led classes at
58. ubsidiaries LEGO the LEGO logo WEDO and MINDSTORMS are trademarks of the LEGO Group TETRIX by Pitsco is a trademark of Pitsco Inc FIELDBUS FOUNDATION and FOUNDATION are trademarks of the Fieldbus Foundation EtherCAT is a registered trademark of and licensed by Beckhoff Automation GmbH CANopen is a registered Community Trademark of CAN in Automation e V DeviceNet and EtherNet IP are trademarks of ODVA Go SensorDAQ and Vernier are registered trademarks of Vernier Software amp Technology Vernier Software amp Technology and vernier com are trademarks or trade dress Xilinx is the registered trademark of Xilinx Inc Taptite and Trilobular are registered trademarks of Research Engineering amp Manufacturing Inc FireWire is the registered trademark of Apple Inc Linux is the registered trademark of Linus Torvalds in the U S and other countries Handle Graphics MATLAB Real Time Workshop Simulink Stateflow and xPC TargetBox are registered trademarks and TargetBox and Target Language Compiler are trademarks of The MathWorks Inc Tektronix Tek and Tektronix Enabling Technology are registered trademarks of Tektronix Inc The Bluetooth word mark is a registered trademark owned by the Bluetooth SIG Inc The ExpressCard word mark and logos are owned by PCMCIA and any use of such marks by National Instruments is under license The mark LabWindows is used under a license from M
59. ut on the NI PXI 6652 This oscillator is a more stable and accurate reference than the native backplane clock The second option is to route a 10 MHz clock directly from the front panel to PXI_CLK10_IN which is the pin on the backplane that will replace PXI_CLK10 There is a delay through the module as well as a distribution delay on the backplane These delays tend to be similar for chassis of the same model so routing the same clock to a pair of chassis usually matches PXI_CLK10 to within a few nanoseconds The third option is to employ the NI PXI 6653 or NI PXI 6652 PLL circuitry for the OCXO or TCXO As in option 1 the output of the OCXO or TCXO replaces the native 10 MHz signal However this scheme also requires an input signal on CLKIN This signal must be a stable clock and its frequency must be a multiple of 1 MHz 5 MHz or 13 MHz for example The PLL feedback circuit generates a voltage proportional to the phase difference between the reference input on PXI_CLK10 and the output of the OCXO or TCXO This PLL voltage output then tunes the output frequency of the OCXO or TCXO As long as the incoming signal is a stable 1 MHz frequency multiple the PLL circuit quickly locks the OCXO or TCXO to the reference eliminating all phase drift between the two signals Using the PLL provides several advantages over the other two options for replacing the PXI backplane clock 3 20 CLKIN is not required to be 10 MHz If you have a stable refe
60. utput although the divide down ratio for this clock full rate first divider second divider may be chosen on a per route basis 3 16 ni com NI PXI 665x User Manual Using the PXI Star Triggers There are up to 13 PXI star triggers per chassis Each trigger line is a dedicated connection between Slot 2 and one other slot The PXI Specification Revision 2 1 requires that the propagation delay along each star trigger line be matched to within 1 ns A typical upper limit for the skew in most NI PXI chassis is 500 ps The low skew of the PXI star trigger bus is useful for applications that require triggers to arrive at several modules nearly simultaneously The star trigger lines are bidirectional so signals can be sent to Slot 2 from a module in another slot or from Slot 2 to the other module You can independently select the output signal source for each PXI star trigger line from one of the following sources e PFI lt 0 5 gt e PXI RTSI triggers lt 0 7 gt PXI_TRIG lt 0 7 gt e Another PXI star trigger line PXI STAR lt 0 12 gt e Global software trigger e PXI Trig PXI Star synchronization clock Refer to the Using the PXI RTSI Triggers section for more information on the PXI Trig PXI_Star synchronization clock Choosing the Type of Routing The NI PXI 665x routes signals in one of two ways asynchronously or synchronously The following sections describe the two routing types and the considerations for choosing each
61. ware may be used to reproduce software or other materials belonging to others you may use NI software only to reproduce materials that you may reproduce in accordance with the terms of any applicable license or other legal restriction End User License Agreements and Third Party Legal Notices You can find end user license agreements EULAs and third party legal notices in the following locations e Notices are located in the lt National Instruments gt _Legal Information and lt National Instruments gt directories e EULAs are located in the lt National Instruments gt Shared MDF Legal license directory e Review lt National Instruments gt Legal Information txt for information on including legal information in installers built with NI products U S Government Restricted Rights If you are an agency department or other entity of the United States Government Government the use duplication reproduction release modification disclosure or transfer of the technical data included in this manual is governed by the Restricted Rights provisions under Federal Acquisition Regulation 52 227 14 for civilian agencies and Defense Federal Acquisition Regulation Supplement Section 252 227 7014 and 252 227 7015 for military agencies Trademarks Refer to the NI Trademarks and Logo Guidelines at ni com trademarks for more information on National Instruments trademarks ARM Keil and Vision are trademarks or registered of ARM Ltd or its s
62. with IEC 60068 2 27 Test profile developed in accordance with MIL PRF 28800F Random Vibration Operating 5 to 500 Hz 0 3 gins 5 to 500 Hz 2 4 gins Tested in accordance with IEC 60068 2 64 Nonoperating test profile exceeds the requirements of MIL PRF 28800F Class 3 Nonoperating AN Caution Clean the NI PXI 665x module with a soft nonmetallic brush Make sure that the device is completely dry and free from contaminants before returning it to service Safety This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement control and laboratory use e TEC 61010 1 EN 61010 1 e UL 61010 1 CSA 61010 1 Note For UL and other safety certifications refer to the product label or the Online Product Certification section A 6 ni com NI PXI 665x User Manual Electromagnetic Compatibility This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement control and laboratory use e EN 61326 IEC 61326 Class A emissions Basic immunity e EN 55011 CISPR 11 Group 1 Class A emissions e AS NZS CISPR 11 Group 1 Class A emissions e FCC 47 CFR Part 15B Class A emissions e ICES 001 Class A emissions Note For the standards applied to assess the EMC of this product refer to the Online Product Certification section CE Compliance CE This product meets the essential require

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