National Instruments PXI-6683 Series User Manual Download | Manualshive

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Hardware Overview

This chapter presents an overview of the hardware functions of the NI PXI-6683 Series, shown
in Figure 3-1.

Figure 3-1.

Isometric View of the NI PXI-6683 Series

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NI PXI-6683

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NI PXI-6683H

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2

NI

PXI

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Summary of Contents for PXI-6683 Series

Page 1: ...PXI NI PXI 6683 Series User Manual NI PXI 6683 and NI PXI 6683H Timing and Synchronization Modules for PXI NI PXI 6683 Series User Manual July 2017 373656B 01...

Page 2: ...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 N...

Page 3: ...TLE 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...

Page 4: ...ependent from NI and have no agency partnership or joint venture relationship with NI Patents For patents covering NI products technology refer to the appropriate location Help Patents in your softwar...

Page 5: ...6683 Series Front Panel 3 3 GPS LED 3 4 1588 LED 3 4 Ethernet Speed LED 3 5 Ethernet ACT LINK LED 3 5 Connectors 3 5 Hardware Features 3 6 Clock and Event Generation 3 8 TCXO PXI_CLK10 and Clock Disci...

Page 6: ...3 Synchronization Best Practices 4 3 Operating Environment 4 3 Timing System Performance 4 3 IEEE 1588 Synchronization Best Practices 4 4 Network Topology 4 4 GPS Synchronization Best Practices 4 4 An...

Page 7: ...tion 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...

Page 8: ...giving full PXI timing slot functionality The NI PXI 6683H is designed to allow installation in a hybrid slot in a PXI Express system this means some of the PXI Timing slot features are not available...

Page 9: ...any way Do not install a damaged module into the computer Store the NI PXI 6683 Series in the antistatic envelope when not in use Software Programming Choices The NI PXI 6683 Series uses NI Sync soft...

Page 10: ...h 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...

Page 11: ...vided by a standard wall outlet for example 115 V for U S or 230 V for Europe Examples of Installation Category II are measurements performed on household appliances portable tools and similar product...

Page 12: ...s module in the system controller slot slot 1 of a chassis 2 Choose an available slot in the chassis Refer to Table 2 1 for more information about functionality NI PXI 6683 Install the NI PXI 6683 in...

Page 13: ...and power on the chassis The NI PXI 6683 Series module is now installed Verifying the Installation During the first boot following the software and hardware installation of the NI PXI 6683 Series modu...

Page 14: ...re Overview This chapter presents an overview of the hardware functions of the NI PXI 6683 Series shown in Figure 3 1 Figure 3 1 Isometric View of the NI PXI 6683 Series 1 NI PXI 6683 2 NI PXI 6683H 1...

Page 15: ...3 2 The NI PXI 6683H does not have the CLKIN circuitry or the ability to drive PXI_CLK10_IN Synchronization Clock Generation and Routing Circuitry PCI Interface PXI PCI PXI_STAR 0 12 PXI_TRIG 0 7 PXI...

Page 16: ...6683 Series Figure 3 3 NI PXI 6683 Front Panel Note The NI PXI 6683H does not have the CLKIN connector shown as item 5 in Figure 3 3 1 GPS LED 2 1588 LED 3 GPS Antenna Connector 4 CLKOUT Connector 5...

Page 17: ...Status Off Not using GPS Amber Attempting to start self survey Blinking Amber Self survey in progress Blinking Green Self survey complete normal operation Red Error The GPS LED is turned off if GPS is...

Page 18: ...ion describes the connectors on the front panel of the NI PXI 6683 Series Refer to Figure 3 3 for the location of the connectors GPS ANT GPS antenna RF input and DC power output for active GPS antenna...

Page 19: ...e device driving the AM signal or both Always ensure the line is configured for IRIG B AM operation before connecting an IRIG B AM signal RJ 45 Ethernet 10 100 1000 Mbit Ethernet connection This conne...

Page 20: ...iming slot can replace this signal with PXI_CLK10_IN Oscillator N A This is the output of the 10 MHz TCXO It is used by the FPGA for synchronization An NI PXI 6683 in the system timing slot can be rou...

Page 21: ...tains circuitry to measure the temperature of the oscillator and adjust the oscillator s control voltage to compensate for temperature variations according to the crystal s known frequency variation a...

Page 22: ...a clock generated in this way Refer to Table 3 6 for a list of destinations for synchronized time clocks and future time events PXI_CLK10 Synchronization Design Recommendations Minimize Starting Stop...

Page 23: ...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 asynchron...

Page 24: ...front panel PFI output signals use 3 3 V signaling for high impedance loads You can use the PFI terminals to generate future time events and clock signals up to 1 5 MHz PFI output Table 3 6 Sources an...

Page 25: ...rt Ground to get a logic high The PFI trigger outputs may be synchronized to CLK10 except when routing future time events Refer to the Choosing the Type of Routing section for more information about t...

Page 26: ...e guidelines Whenever timestamping begins on PFI0 either ensure the input will remain at a logic low state for at least 5 ms or disregard timestamps for at least 5 ms When setting up PFI0 as an output...

Page 27: ...This 10 MHz signal can be sourced from the native PXI backplane oscillator or from the system timing slot Controller Module installed in the system timing slot such as the NI PXI 6683 The following s...

Page 28: ...source can be independently selected from the following options PFI 0 2 Another PXI trigger line PXI_TRIG 0 7 PXI_STAR 0 12 Future time events PXI_CLK10 Ground Tip Invert Ground to get a logic high Th...

Page 29: ...ions for choosing each 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 sou...

Page 30: ...nd to get a logic high The destination of an asynchronous routing operation on the NI PXI 6683 Series can be any of the following lines Any front panel PFI pin PFI 0 2 Any PXI star trigger line PXI_ST...

Page 31: ...logic high state within a window of time around the clock edge This window of time around the clock edge is defined by the setup time tsetup and hold time thold If the input signal changes within thi...

Page 32: ...o ensure this requirement is met go to ni com info and enter Info Code SyncTriggerRouting Possible sources and destinations for synchronous routing include the following Any front panel PFI pin PFI 0...

Page 33: ...e per second PPS that the NI PXI 6683 Series uses to achieve sub microsecond synchronization GPS enables the NI PXI 6683 Series to synchronize PXI systems located far away from each other as long as G...

Page 34: ...hen roll over to 0 Hours begin every day at 0 increment to 23 and then roll over to 0 Days begin every year at 1 Days increment to 365 in non leap years or to 366 in leap years and then roll over to 1...

Page 35: ...onization performance Operating Environment In order to achieve the best synchronization performance refer to the following guidelines to provide a thermally stable environment Also ensure you remain...

Page 36: ...d Ethernet switches can have Ethernet packet latencies vary by hundreds of nanoseconds This latency uncertainty degrades synchronization performance significantly Ensure that the network is running at...

Page 37: ...tions far from trees and tall buildings that could block or reflect GPS satellite signals are best Maximum Cable Length Maximum cable length depends on the GPS antenna gain and the cable s loss per un...

Page 38: ...constant is then stored in on board non volatile memory along with other calibration metadata such as calibration date and temperature The calibration constant is used at start up when the board is co...

Page 39: ...ay 11 ns typical Jitter added to CLKIN 1 3 psrms 10 Hz to 100 kHz typical Duty cycle distortion of CLKIN to PXI_CLK10_IN 1 typical Required input duty cycle2 45 to 55 1 When configured to route the on...

Page 40: ...KOUT when configured to route PXI_CLK10 Output current 48 mA max Square wave rise fall time 10 to 90 for 50 load 1 ns typical Input Characteristics3 Frequency range DC to 50 MHz Input impedance 1 k no...

Page 41: ...n configured to route PXI_CLK10 IRIG B Input Characteristics PFI0 IRIG B AM compatibility IRIG B 12X 200 04 standard Maximum Input voltage range 5 V to 5 V Input impedance 5 k Decode Input voltage ran...

Page 42: ...s 2009 If the year is not supplied sent as 00 the OS system time is read and the year is derived from it To achieve proper synchronization of the NI PXI 6683 Series ensure that the IRIG B source used...

Page 43: ...for timestamping 22 ns TCXO Characteristics Nominal frequency 10 MHz Accuracy within 1 year of calibration adjustment within 0 C to 55 C operating temperature range 3 5 ppm Long term stability 1 ppm...

Page 44: ...Input impedance 50 nominal GPS receiver type 50 channels GPS L1 frequency 1575 42 MHz C A Code Recommended signal strength at SMB connector 130 dBm Maximum RF power at input 3 dBm Accuracy PPS1 15 ns...

Page 45: ...50 one standard RJ 45 Ethernet connector NI PXI 6683H Five SMB male 50 one standard RJ 45 Ethernet connector Front panel indicators Two tricolor LEDs green red and amber for GPS and IEEE 1588 status a...

Page 46: ...15 minutes before PPS offset recording began All test durations were at least 12 hours For the GPS test two NI PXI 6683 Series boards were independently synchronizing to GPS and configured to generate...

Page 47: ...068 2 56 Shock and Vibration Operational Shock 30 g peak half sine 11 ms pulse Tested in accordance with IEC 60068 2 27 Test profile developed in accordance with MIL PRF 28800F Random Vibration Operat...

Page 48: ...ltage Directive safety 2004 108 EC Electromagnetic Compatibility Directive EMC Online Product Certification Refer to the product Declaration of Conformity DoC for additional regulatory compliance info...

Page 49: ...WEEE recycling center For more information about WEEE recycling centers National Instruments WEEE initiatives and compliance with WEEE Directive 2002 96 EC on Waste and Electronic Equipment visit ni c...

Page 50: ...the signal used to transmit the data and the actual data transmitted This is usually specified by 3 digits that follow the IRIG standard name for instance IRIG B 120 Table B 2 details the different c...

Page 51: ...ion and at space for the remaining 20 Binary bits are used to transmit information such as time of year straight binary seconds and so on and position identifiers are used to separate the different pi...

Page 52: ...osition identifier The figure shows the information transmitted using an amplitude modulated signal and a pulse width modulated signal Figure B 1 IRIG B AM and DC Transmission Example IRIG B is one of...

Page 53: ...ction bits 59 Position identifier P6 60 to 68 Control function bits 69 Position identifier P7 70 to 78 Control function bits 79 Position identifier P8 80 to 88 Nine lowest significant bits of time of...

Page 54: ...B signal All conditions must be met for the NI PXI 6683 Series to be able to synchronize accurately Seconds begin every minute at 0 increment to 59 and then roll over to 0 Minutes begin every hour at...

Page 55: ...y your systems accuracy and reliability requirements and provides warranty sparing and calibration services to help you maintain accuracy and minimize downtime over the life of your system Visit ni co...

Page 56: ...tions 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 alm...

Page 57: ...lli 10 3 k kilo 103 M mega 106 Symbols percent plus or minus positive of or plus negative of or minus per degree ohm A AC alternating current ADE application development environment asynchronous a pro...

Page 58: ...XI_CLK10_IN CLKOUT CLKOUT is the signal on the SMB output pin of the same name PXI_CLK10 can be routed to CLKOUT clock hardware component that controls timing for reading from or writing to groups Com...

Page 59: ...ter DC direct current E ESD electrostatic discharge F frequency the basic unit of rate measured in events or oscillations per second using a frequency counter or spectrum analyzer Frequency is the rec...

Page 60: ...urement Automation Explorer MAX a controlled centralized configuration environment that allows you to configure all of your National Instruments DAQ GPIB IMAQ IVI Motion VISA and VXI devices O oscilla...

Page 61: ...the amount of time required for a signal to pass through a circuit PXI a rugged open system for modular instrumentation based on CompactPCI with special mechanical electrical and software features Th...

Page 62: ...slot the place in the computer or chassis in which a card or module can be installed SMB sub miniature type B a small coaxial signal connector that features a snap coupling for fast connection synchro...

Page 63: ...D color explanation table 3 5 configuring the device Ethernet Speed LED 3 5 overview 2 2 D Declaration of Conformity NI resources C 1 destinations possible destinations table 3 11 diagnostic tools NI...

Page 64: ...nization 4 1 best practices 4 3 GPS 4 1 IEEE1588 4 2 IRIG B 4 1 PPS 4 2 help technical support C 1 I I O considerations 3 11 I O terminals table 3 7 IEEE 1588 synchronization 4 2 best practices 4 4 ne...

Page 65: ...sources and destinations table 3 11 PXI star triggers 3 15 PXI triggers 3 14 overview 3 13 types asynchronous 3 16 synchronous 3 17 S safety specifications A 8 shock and vibration specifications A 8 s...

Page 66: ...ized future time clock generation specifications A 4 synchronous routing overview 3 17 timing diagram 3 18 T TCXO clock generation 3 8 overview 3 8 specifications A 5 technical support C 1 temperature...

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