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Product Safety Alert: Fuses Recommended in NI 651x Applications One of the most common failure modes of NI 651x devices that have been returned to National Instruments for repair is damage caused by incorrect wiring - typically a short circuit between outputs and power or ground. Creating this short circuit will damage the board and can result in a fire URL: http://digital.ni.com/public.nsf/allkb/1E677C06384983218625743300501786

Which 651x Products are Affected by the April 2008 Product Safety Alert? I recently received notification from National Instruments recommending the addition of fuses to protect my PXI or PCI 651x board. Which boards are affected by this recommendation? URL: http://digital.ni.com/public.nsf/allkb/FCD1F4C0FA40BA468625743300644C4A

Different Types of Isolation: Channel-to-Channel, Bank (Channel-to-Bus), and Channel-to-Earth Ground Isolation What are the differences between the types of electrical isolation NI offers on devices? I do not understand the differences between channel-to-channel, bank (channel-to-bus), and channel-to-earth ground isolation. URL: http://digital.ni.com/public.nsf/allkb/CF71091043A6193B862573D70077138B

Error Code 250033 I recieve the following error when using a PCI NI digital waveform generator/analyzer. What could be the cause? Error -250033 occurred: NI-TClk committed a session, and the instrument driver reported an error. URL: http://digital.ni.com/public.nsf/allkb/7AD9D646FEA83270862573C60071DCBC

How do I force Windows to remove and redetect a USB device? I have to disconnect and then reconnect my USB device for Windows before it will work. This often happens after losing power to the device but not to the computer. How can I do this manually, without having to physically disconnect the device? URL: http://digital.ni.com/public.nsf/allkb/1D120A90884C25AF862573A700602459

Why Do I Receive Error -1074118592 When Using the niHSDIO Write Named Waveform VI? I am trying to generate a digital waveform using the NI-HSDIO instrument driver and supported hardware. When I use the niHSDIO Write Named Waveform VI I get the following message: Error -1074118592 occurred at niHSDIO Write Named URL: http://digital.ni.com/public.nsf/allkb/F6642877E0D9D0698625738B0007701E

Possible Sources of HSDIO Acquisition Error with NI 655x I am performing a acquisition with an NI 6551 or NI 6552 device, and I am not acquiring the data that I know I should be. Furthermore, I have a oscilloscope or digital multimeter on the lines and I notice that the logic levels are not what I expect. What is going on? URL: http://digital.ni.com/public.nsf/allkb/DA079008D7085E958625737D0078BB04

使用 NI 655x 擷取信號錯誤的可能原因 我使用 NI 6551 或 NI 6552 擷取信號，但是卻沒有收到我預期的正確信號；我同時使用一台示波器與一台數位電表量測信號線，並且發現信號的邏輯準位〈logic level〉不是我所預期的。請問這是發生了什麼事？ URL: http://digital.ni.com/public.nsf/allkb/E0923B9E39054CF3862573B40039C3CC

Differences Between RTSI/PXI Lines And PFI Lines In HSDIO Devices I am seeing unexpected behavior when using the RTSI/PXI lines of my HSDIO devices. What am I doing wrong? URL: http://digital.ni.com/public.nsf/allkb/2DDA995A6FBA07EE8625737500680143

¿Cuáles son los Requisitos de CPU para Utilizar mi Tarjeta de Serie M? He tratado de buscar en la Web pero no he encontrado ningún requisito de CPU para utilizar mi tarjeta de Serie M. ¿Cuáles son los requisitos de URL: http://digital.ni.com/public.nsf/allkb/D205178A4E45BF1F86257362001FC76B