pxi-6652. Industry leading, price advantage, quality assurance 3. pxi-6652

 
Industry leading, price advantage, quality assurance 3pxi-6652 Compliance Electromagnetic Compatibility Information This hardware has been tested and found to comply with the applicable regulatory requirements and limitsPCI-6239 NI module, NI, PCI-6239 NI module Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United StatesHi alls, PXI-6608 can drive backplane with 75bpp 10MHz internal clock

Multichassis PXI Synchronization Module—PXI Synchronization Modules use the trigger bus, star trigger, and system reference clock features of PXI to implement advanced multi-device synchronization. 5 - 9,999 / Piece Min. NI PXI-665x Calibration Procedure 10 ni. 188268C-03 or later PXI-6651 188268C-02 or later PXI-6652 188268C-01 or later PXI-6653 Volatile Memory Target Data Type Size Battery Backup User1 Accessible System Accessible Sanitization Procedure Board Control Registers FPGA N/A No Yes Yes Cycle Power PXI Star Triggers CPLD N/A No Yes Yes Cycle Power. ABB;. PXI-2566 NI module, NI, PXI-2566 NI module Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United States. 3 V, 500 mA max at +12 V, and 0 A max at -12 V. . Has been engaged in industrial control industry for a long time, with a large number of inventories. 5 - 9,999 / Piece Min. . Has been engaged in industrial control industry for a long time, with a large number of inventories. Leading Time:IN STOCK . Short Description: Brand: NI. Hardware: Industrial Communications>>CAN>>NI PXI-8512 CAN/HS1 PXIE-4357 NI module. 075 ppm and a 1. If you are synchronizing 4 or more chassis, install the remaining PXI-6653 or PXI-6652 modules in the leftmost available slots in the master chassis (Slot 3, Slot 4, and so on). 2. Diversified models and products, and all kinds of rare and discontinued products 4. 5 - 9,999 / Piece. 99. 5 - 9,999 / Piece Min. PXI-6652 美国NI PLC模块 机箱. PXI NI PXI-665x User Manual Timing and Synchronization Module for PXI NI PXI-665x User Manual February 2016 370711D-01PXI Digital Waveform Instrument. The Keysight M918xA Series ( M9181A, M9182A, M9183A) compact digital multimeters (DMM) provide popular measurement functions such as DCV, ACV, DCI, ACI, 2- and 4-wire resistance, and more, with the accuracy and stability you would expect from a 6. Leading Time:IN STOCK . 188268C-03 or later PXI-6651 188268C-02 or later PXI-6652 188268C-01 or later PXI-6653 Volatile Memory Target Data Type Size Battery Backup User1 Accessible System Accessible Sanitization Procedure Board Control Registers FPGA N/A No Yes Yes Cycle Power PXI Star Triggers CPLD N/A No Yes Yes Cycle Power. This accuracy is improved to 1 ppm with the PXI-6652, and to 50 ppb with the PXI-6653. FOB Price: US $0. $142. Company advantage service: 1. NI PXI-665 Series i/o systems pdf manual download. Short Description: Brand: NI. One year warranty. High-Performance Test. NI PXI-6652数据采集. Hi, Not sure if this should go in the PXI section or the LabVIEW one. The onboard direct digital synthesis (DDS) clock of the PXI-6652, PXI-6653, and NI PXIe-6672 modules provides an extremely high-resolution programmable clock source that can generate clocks from DC to 105 MHz in frequency with <1. It uses the FPGA on these devices to count these edges and, based on a timed-loop in the FPGA code, measures period and frequency. Perspectives. 3500/93 135799-01 Mechanical protection system, BENTLY NEVADA, 3500/93 135799-01 Mechanical protection system Brand: BENTLY NEVADA Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United States. I am using the following hardware: PXI-1056, PXI-6652, PXI-4461, and PXI-PCI8336. Perspectives; Support. This accuracy is improved to 1 ppm with the PXI-6652, and to 50 ppb with the PXI-6653. . . The NI-Sync driver provides limited support for the NI PXI-6683 (H) timing & synchronization modules when used in a PXI system running LabVIEW Real-Time. PXIe-8430/8. . Attachment. Company advantage service: 1. . Upload ; No category . . This module comes with part number 778726-01. Furthermore, two ADCs, i. The clock preciseness is increased to 1 ppm with the NI PXI-6652 module. I am looking at Single-Board Disciplining with the PXI-6683H. What is PXI? PXI is a computer built for test engineers. PXI-6713 Data acquisition card, NI, PXI-6713 Data acquisition card Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United StatesPXI-5142 National Instruments, NI, PXI-5142 National Instruments Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United States. The M9352A PXI hybrid slot is optimized for use with. . Item Number : PXIe-5442. Website Take me there. PXI-6652 PXI-6651 PXI-6624 . 15 days free replacement for quality problems. Contact us. I have tried using both DAQmx and niSync Property nodes on these cards. . While every slot of the PXI backplane may access the PXI trigger bus, the star trigger lines and differential star trigger lines are only accessible through the system timing slot. Product Description Item #: PXI-6652 Manufacturer: National Instruments Series: PXI Series The PXI-6652 is a PXI Timing and Synchronization Module. 6. Open a service request. PXI is built on CompactPCI, plus it offers additional Timing and Synchronization features. The PXIe‑5652 features continuous-wave generation capabilities with FM, 2‑FSK, or OOK modulation. 01% accuracy for standard baud rates. Has been engaged in industrial control industry for a long time, with a large number of inventories. Has been engaged in industrial control industry for a long time, with a large number of inventories. With these features, the PXI-6652/3 can be used to increase accuracy of instruments within a system, or to synchronize multiple PXI. Industry leading, price advantage, quality assurance 3. Industry leading, price advantage, quality assurance 3. . 6 GHz Analog Signal Generator (Part Number: 779670-02 ), allows the user to disable the signal output on the RF OUT connector utilizing the Output Property enable. About This Manual. Upload ; No category . Compliance Electromagnetic Compatibility Information This hardware has been tested and found to comply with the applicable regulatory requirements and limits779601H-0315 Developer Suite Core 4,970,000 778932-01 PXI 1031 4 slot chassis AC 1,100,000 2008-Jan 779756-01 PXI 1033 Integrated MXIe 5 Periph Slots1 Port PCIe 3m Cable 1,100,000 779602H-03 Automated Test Option 3,860,000 779382-01 PXI 1036 6 Slot 3U Chassis AC for 1 or 2 slot controllers 1,210,000labview fpga rio 타겟에서 pxi-6651, pxi-6652, 또는 pxi-6653이 보이지 않습니다. PXI-6239 NI module, NI, PXI-6239 NI module Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United States. . . hwdb/20-OUI. This page documents all the applicable standards and certifications for the PXI-6652 and provides downloadable certifications. 1 NI PXI-8360 Remote Controller. This documents provides information on calibration service levels available for NI Products. PXIe-8430/8. FOB Price: US $0. . 15 days free replacement for quality problems. Diversified models and products, and all kinds of rare and discontinued products 4. Website. , PCI 1588, PXI 6682/6682H/6683/6683H), then you can modify the Generate Digital Pulse LabVIEW. . 1AS, IRIG-B, or PPS. With these features, the PXI-6652/3 can be used to increase accuracy of instruments within a system, or to synchronize multiple PXI. Compliance Electromagnetic Compatibility Information This hardware has been tested and found to comply with the applicable regulatory requirements and limitsPCI-6239 NI module, NI, PCI-6239 NI module Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United StatesHi alls, PXI-6608 can drive backplane with 75bpp 10MHz internal clock. Directions Advertisement. PXI-6652 PXI-6651 PXI-6624 . NI PXI Platform Completion Hardware enhances your PXI test systems. It is also a test and measurement platform that integrates the controller and measuring instruments in a multi-slot chassis. The National Instruments PXI-6652/3 is a system timing and control module for PXI. Part Number and Revision Description. 00 ¥ 666. The NI-Sync 3. Claim this business (604) 767-8621. The devices in slot #s 2,3, and 6 have passed the self test. 6652、6602、4472b,其中: pxi 6652 时钟同步模块采用ni 提供的smb(类似bnc 同轴电缆的接口)接口于 gps 接收器的10m pps 输出端相连,接收10m pps 时钟信号,并且将此时钟信号 进行分频,把分频后的时钟信号提供到pxi 机箱背板,提供给高速同步采集卡pxi Optimized for Use with Keysight’s M9362A-D01 Quad Downconverter. NI PXI-665 Series control unit pdf manual download. . View and Download National Instruments NI PXI-665 Series calibration procedure online. I need to driver to stay ON (driving logic "1" which I will set to 1. com +86 17750010683 . . The PXI-6683H is designed to allow installation in a hybrid slot in a PXI Express system; some PXI timing † Allow a warm up time of at least 15 minutes for the NI PXI-6652 and three hours for the NI PXI-6653 to en sure the measurement circuitry is at a stable operating temperature. Software. AshokFind many great new & used options and get the best deals for National Instruments NI PXI-6652 Timing and MultiChassis Synchronization Module at the best online prices at eBay! Free shipping for many products!Get a quote for a Used PXI 6652 Miscellaneous Modules from Apex Waves, LLC at used-line. . . Skip to content. . PXI Digital Waveform Instrument. PXI. PXI-6652 PXI Synchronization Module. Why PXI?. Industry leading, price advantage, quality assurance 3. PXI NI PXI-665x User Manual Timing and Synchronization Module for PXI NI PXI-665x User Manual February 2016 370711D-01. Engineers can use NI PXI to build high-performance hybrid measurement systems for validation and production testing. It uses direct digital synthesis (DDS) for high-resolution frequency hopping or phase-continuous sweeping for fixture and device characterization applications. Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports. If you are synchronizing 4 or more chassis, install the remaining PXI-6653 or PXI-6652 modules in the leftmost available slots in the master chassis (Slot 3, Slot 4, and so on). . Software. Diversified models and products, and all kinds of rare and discontinued products 4. Industries. † Keep PXI chassis filters clean and fan speed set to High. The National Instruments PXI-6652, referred to as a PXI Timing and Multi-Chassis Synchronization module, is a highly capable device furnished with a 711 nHz resolution. Leading Time:IN STOCK . NI-Sync 19. This program confirms that the ClkOut signal is present and that its gain is enabled. . The NI PXI-6652/3 features the ability to drive the PXI star trigger lines and import or export triggers to the PXI backplane. 6 GHz PXI RF Analog Signal Generator —The PXI‑5652 features continuous-wave generation capabilities with FM, 2‑FSK, or OOK modulation. The PXI‑6683 features an onboard temperature-compensated crystal oscillator (TCXO) that can be disciplined to GPS, IEEE 1588, and IRIG‑B for long-term stability. Industry leading, price advantage, quality assurance 3. Has been engaged in industrial control industry for a long time, with a large number of inventories. . PXI-6220 National Instruments, NI, PXI-6220 National Instruments Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United States. com. sbRIO-9651 Data acquisition card, NI, sbRIO-9651 Data acquisition card Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United StatesPXI-6651 National Instruments, NI, PXI-6651 National Instruments Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United States. Compliance Electromagnetic Compatibility Information This hardware has been tested and found to comply with the applicable regulatory requirements and limitsVendor Details. 15 days free replacement for quality problems. Company advantage service: 1. Has been engaged in industrial control industry for a long time, with a large number of inventories. Company advantage service: 1. NI PXI-6653 Visio Stencil-EQID=NATI158. The PXI 6652 can be used for advanced synchronization. 149 King Street Hanover, MA 02339 USA Direct: 781-871-8868 Fax: 781-871-7412 CAGE Code: 639A3 The National Instruments PXI-6652/3 is a system timing and control module for PXI. . pxi-6230 plc 处理器模块 美国ni PXI-6220 美国NI PLC模块 控制器 Company advantage service: 1. This module can also generate a high-stability reference clock: TCXO. . . Company advantage service: 1. e. The NI PXI-6652 is designed by National Instruments. CFP-AO-210 USB-6525 Information Acquisition Card, PXI Module, Card Westinghouse — RTD thermal resistance input module, AI/AO/DI/DO module, power module, control module,. . NI PXI-6652数据采集. Also, there are no DAQmx functions to "disable" the PXI-6608 override clock. Compatible with Windows and LabVIEW. 15 days free replacement for quality problems. Order Quantity: 100 Piece/Pieces Supply Ability: 10000 Piece/Pieces per MonthShort Description: Brand: NI. 2, which is included with the PXI hardware and is available as a free download to engineers who already own the PXI module. - PXI-6682 will trigger according to the GPS timestamp and will provide PPS signal to PXI-6653. Has been engaged in industrial control industry for a long time, with a large number of inventories. Industry leading, price advantage, quality assurance 3. . More. Important Files. 2. single-family home is a 5 bed, 3. . accurate 10 MHz source to the ClkIn connector on the NI PXI-6653 or NI PXI-6652. FOB Price: US $0. Diversified models and products, and all kinds of rare and discontinued products 4. One Year Warranty. Min. two drivers of PXI chassis with Configuration problem. View and Download National Instruments NI PXI-665 Series calibration procedure online. . High-Performance Test. 3221366881@qq. , PXI 6651/6652/6653, PXIe 6672/6674/6674T), then you can modify the Route Software Trigger LabVIEW shipping example. Skype:+86 17750010683. . $179. PXI-6652. View all articles. 3. PXI is built on CompactPCI, plus it offers additional Timing and Synchronization features. . Type Information; ID: 1093All kinds of module card driver controller servo motor servo motor embedded card wires and cables Power module control module is applicable to steel, hydropower, nuclear power, power generation, glass factory, tire factory, rubber, thermal power, paper making, shipping, navigation, etc ABB — AC 800M controller, Bailey, PM866 controller, IGCT silicon. Using both Driver and Comparator on PXI-6552 cards to test for DUT Tristate Solved! Go to solution. A valid service agreement may be required. 5 - 9,999 / Piece Min. 8-Port, RS232 PXI Serial Instrument Control Module. Has been engaged in industrial control industry for a long time, with a large number of inventories. When synchronizing multiple chassis, the PXI-665X devices must be programmed to share the Sync Pulse, the Start Trigger and either the Sample Clock Timebase or. PXI-8512 National Instruments, NI, PXI-8512 National Instruments Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United States. 3-7 PXI-6652. ft. 5 - 9,999 / Piece Min. Item Number : PXI-5441. The PXI-5660 will replace the CLK10 signal on the PXI backplane with a 50 ppb accuracy 10 MHz clock signal. Skip to content. 2. Diversified models and products, and all kinds of rare and discontinued products 4. CFP-AO-210 USB-6525 Information Acquisition Card, PXI Module, Card Westinghouse — RTD thermal resistance input module, AI/AO/DI/DO module, power module, control module,. Hi I have two PXI chassis with me. ABB;. PXI-6652 美国NI PLC模块 机箱. Multichassis PXI Synchronization Module —PXI Synchronization Modules use the trigger bus, star trigger, and system reference clock features of PXI to. . . 15 days free replacement for quality problems. The National Instruments PXI-6652/3 is a system timing and control module for PXI. Industry leading, price advantage, quality assurance 3. Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports. hwdb | 249 +++++ hwdb/20-pci-vendor-model. The PXI‑6683 features an onboard temperature-compensated crystal oscillator (TCXO) that can be disciplined to GPS, IEEE 1588, and IRIG‑B for long-term stability. View all articles. PXIe 6672, PXI 6652) The code is designed to work in a double chassis configuration with two synchronization cards. Documentation You need the NI-Sync User Manual to calibrate the NI PXI-665x. . . Item Number : PXIe-5632. Demonstrates how to use NI-Sync along with a Timing & Synchronization board (PXI-6652 or PXI-6653) to route a clock to the ClkOut terminal. . The clock signal's frequency is then measured on PFI0. These additional features are implemented on the J2 connector of the boards (the P2 connector on the chassis). National Instruments NI PXI-6652 Timing and MultiChassis Synchronization Module . High-Performance Test. 01 Hz. pxi-6230 plc 处理器模块 美国ni PXI-6220 美国NI PLC模块 控制器 Company advantage service: 1. This also gives you access to TXCO and OCXO which gives you a long term stability of 1 ppm or 50 ppb/year respectively. These additional features are implemented on the J2 connector of the boards (the P2 connector on the chassis). Hi, There is a problem performing Heterogenous Device Synchronization. com +86 17750010683 . NI PXI-6652数据采集. Industry leading, price advantage, quality assurance 3. 6652 Victoria Dr Vancouver BC V5P 3Y1 (604) 767-8621. PXI is built on CompactPCI, plus it offers additional Timing and Synchronization features. 100 MHz, 20 Channel PXI Digital Waveform Instrument —The PXI-6552 is a digital waveform generator/analyzer for interfacing to. 예를 들면, 여러개의 PXI-4472 보드간에 Sample Clock Timebase 를 공유할수 있고, 다른 Rate로. PXI-5691 National Instruments, NI, PXI-5691 National Instruments Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United States. 6 NI PXI-4132 Dev1. 主要软件: 主要软件版本: 3. FOB Price: US $0. The property nodes works for the PXI-6682 but not the other three cards. The PXI-6551 uses custom, programmable voltage levels with per-cycle, per-channel bidirectional control. Skip to content. Has been engaged in industrial control industry for a long time, with a large number of inventories. 2. . PXI-4065 National Instruments, NI, PXI-4065 National Instruments Brand: National Instruments Name: Module Current: 5A Voltage: 24V Mode of use: Hot plug implementation standard: Import origin: United States. 8-Port, RS232 PXI Serial Instrument Control Module. Compliance Electromagnetic Compatibility Information This hardware has been tested and found to comply with the applicable regulatory requirements and limitsThe NI PXI-5652, which is a 6. 5 - 9,999 / Piece Min. 15 days free replacement for quality problems. 对于主机箱,第二槽装一块pxi-6653或者pxi-6652。在所有从机箱的第二槽装一块pxi-6651、pxi-6652或者pxi-6653。如果您同步4个或者4. Has been engaged in industrial control industry for a long time, with a large number of inventories. The problem with me now is that I have two SMB-210 cable and no SMB-200 cable. The NI PXI-6652/3 features the ability to drive the PXI star trigger lines and import or export triggers to the PXI backplane. 00 shipping. PXIe Rubidium Frequency Standard. Industry leading, price advantage, quality assurance 3. These additional features are implemented on the J2 connector of the boards (the P2 connector on the chassis). PXI-6652 PXI Synchronization Module. Timing and Synchronization Module for PXI. 3221366881@qq. When synchronizing multiple chassis, the PXI-665X devices must be programmed to share the Sync Pulse, the Start Trigger and either the Sample Clock Timebase or. As the first test instrument to combine a PXI rubidium source with GPS assist technology, the new PXIe-3352 will be well-suited. Max configuration tree is also showing following devices: Slot# Device. 1 NI PXI-8360 Remote Controller. Hi, Is ther any available IVI-COM driver for the NI-6652 timing module that is compatible with Visual Basic. 6V. Using NI-Sync, program the NI PXI-6653 or NI PXI-6652 to route the ClkIn signal to PXI_Clk10In without using its 10 MHz PLL. I have a PXI-6683H in the. In one of the chassis I have a PXI 6653 and in the other I have PXI 6652. PXI-6652 PXI Synchronization Module. PXI is built on CompactPCI, plus it offers additional Timing and Synchronization features. PXI-6652 PXI-6651 PXI-6624 . Diversified models and products, and all kinds of rare and discontinued products 4. What is PXI? PXI is a computer built for test engineers. To determine the measured accuracy, subtract the nominal frequency (10 MHz) from the measured frequency and divide by the nominal frequency (10 MHz). Outside the model, an 8-slot NI PXI-1042 chassis with 24-bit NI PXI-4498 modules was used for inflow signals. txt) or read online for free. . CFP-AO-210 USB-6525 Information Acquisition Card, PXI Module, Card Westinghouse — RTD thermal resistance input module, AI/AO/DI/DO module, power module, control module,. 2 NI PXI-6652 Dev2. PXIe, 6. High performance in a small, rugged package gives you an ideal deployment. With this module, the user can adjust the behavior of the PFI connections individually. com +86 17750010683 . Industry leading, price advantage, quality assurance 3. The National Instruments PXI-665x and NI PXIe-6672 timing and synchronization control modules use the trigger bus, star trigger, and system reference clock features of PXI to implement advanced multimodule or multichassis synchronization. National Instruments PXI-6652 Timing and Multi-Chassis Synchronization Module Configuration: • Oscillator: 10 MHz TCXO Part Number: 188268D-02, 778726-01 Product Family: 5998-01-570-2154, 5998015702154 . 6 GHz, PXI RF Analog Signal Generator. PXI is built on CompactPCI, plus it offers additional Timing and Synchronization features. 2. 6 GHz PXI RF Analog Signal Generator —The PXI‑5652 features continuous-wave generation capabilities with FM, 2‑FSK, or OOK modulation. Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports. 3 NI PXI-6115 Dev3. g. Short Description: Brand: NI. 만약 고객님의 장비가 PXI 타입이시고 PXI-6652 또는 PXI-6653 을 가지고 계시다면 가능합니다. 0 Release Notes contains a list of National Instruments PXI timing and synchronization products that are compatible with LabVIEW RT and Windows Vista x64. . These additional features are implemented on the J2 connector of the boards (the P2 connector on the chassis). 3-6 Access. Account. These specifications are typical at 25 °C, unless otherwise stated. The NI PXI-6682 is warranted against defects in materials and workmanship for a period of one year from the date of shipment, a s evidenced by receipts or other documentation. You also can use the PXI‑6683 to route clock signals and triggers with low skew within a PXI chassis or between multiple chassis, providing you a method for synchronizing. The PXI-6652 increases the measurement accuracy and implements high-level triggering schemes. PXI-4462 in Slot 2 acting as a Master & PXI-4472 in Slot 3 as a Slave I've kept 4462 in slot 2 because 4462 requires & generates a higher oversample rate than 4472. Leading Time:IN STOCK . From troubleshooting technical issues and product recommendations, to quotes and orders, we’re here to help. Skip to content. It is equipped with 1 3U PXI slot, and a 50 Ω SMB male front panel connector. . PXI-6652. PXI is built on CompactPCI, plus it offers additional Timing and Synchronization features. These additional features are implemented on the J2 connector of the boards (the P2 connector on the chassis). A PXI-6534 HSDIO card could then be used to generate the PRBS (using the Binary MLS VI) and. Perspectives. The NI PXI-6653 consumes 2 A max at +5 V, 600 mA max at +3. PXI-6652 제품 인증 - NI 홈 페이지로 돌아가기188268C-03 or later PXI-6651 188268C-02 or later PXI-6652 188268C-01 or later PXI-6653 Volatile Memory Target Data Type Size Battery Backup User1 Accessible System Accessible Sanitization Procedure Board Control Registers FPGA N/A No Yes Yes Cycle Power PXI Star Triggers CPLD N/A No Yes Yes Cycle Power. These additional features are implemented on the J2 connector of the boards (the P2 connector on the chassis). I have connected the PXI-6683H's CLK OUT to the chassis' 10 MHz Ref In. This Timing and Control Module requires one 3U PXI Slot and weighs around 203 g. NI PXI-6652数据采集. $219. 3221366881@qq. TCXO PXI Synchronization Module—PXI Synchronization Modules use the trigger bus, star trigger, and system reference clock features of PXI to implement advanced multi-device synchronization. Min. This also gives you access to TXCO and OCXO which gives you a long term stability of 1 ppm or 50 ppb/year respectively. Equipment Recommended Model Requirements 10 MHz clock source Symmetricom/Datum 8040 Accurate to within 0. NI PXI-665x User ManualPXI-6652 PXI-6651 PXI-6624 . Diversified models and products, and all kinds of rare and discontinued products 4.