USB output power?

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• What is CH 0 output power awg PXI - 5422?

  I would like to know what is the minimum and maximum of the CH 0 terminal power in my AWG.  It is inserted in a PXI - 1031 dc chassis.  I looked through the sheet attached PXI - 5422 and page 10, it lists some tension, the configuration of the amplifier and the dBm output power.  For example, Low Gain--> Vpp--> dBm 4.0 1.00 seems to be a unit of energy conversion because putting Vpp 1.00 through the equation of power gives Pout = 10 * log(V^2/R*1000) = 10 * log([(1.00/(sqrt(2)*2)]^2/50*1000) = 4,0 dBm written on the technical data sheet .  In my equation, I took the peak voltage in crete, divided by 2 to get the voltage Amplitude divided by sqrt (2) to convert it to RMS and then used the power = voltage ^ equation 2/resistance and finally the Watts to the conversion of dBm.  I guess as a 50 ohm load for which is what my AWG is currently set to.

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  My analysis is correct?  Further reflection?

  Thanks for the research!

  Hello

  It's Marcus of Engineering Application at National Instruments.  I've reviewed over your math and you are correct in your calculations.  To determine the power output of your PXI-5422, you will need to know the Vpps that you use and also the load to which you connect to the device.  These factors will then determine the power output of your PXI-5422.

  Kind regards

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  This picture date of arrival:
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  In your case, I recommend to remove the /hub of /controller of the USB port on the Device Manager.
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  After restarting again, the system (Win XP in your case) should recognize the USB ports and the driver must be installed again.
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  500mA is a standard USB. All manufactured goods that create devices USB knew this and must follow the rules.
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• L50 - A - 160:USB of power in standby mode satellite is disabled but it STILL works

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  It's my L50-A-160.

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  Hello

  You are talking about sleep function & expenses supported by some USB ports?

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  As far as I know on Satellite L50-A-160 only USB 3.0 (on the right side) would support this sleep & Charge USB.

  The charge & sleep can be enabled and disabled in windows.
  Go to desktop-> Office Assistance (in the task bar)-> utility tools & -> Control Panel

  There you should find the different tabs and one of the tabs should have sleep & fresh / tab sleep & music which allows you to set advanced features for the mod, Hibernate standby mode and stop mode.
  Simply move the slider to activate or deactivate the function sleep & Charge.

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• [F5] Output power

  Hello world!

  I wanted to my screen of Ikan extrenal directly from the camera. And now I'm stuck. First I thought that good cable should be LEMO in DC (quite expensive and hard to find), but now I think that good is Hirose 4 pin in DC. Which is correct?

  Thanks in advance!

  EDIT: I just realized that there is a post open on power output, then perhaps someone can verify is this cable will work for me:
  http://www.creativevideo.co.uk/index.php?t=product/Hawk-woods_la-48
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  www.simonedwards.TV

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  Hello

  I have a pretty simple question. I m using the power spectrum of FFT and PSD vi. and have trouble understand output frequencies. If I understand the first line is DC-value and delta frequency then describe the following frequencies. But when I put for example in 8 points say sampling frequency of 4 Hz = 2 seconds of data to analyze, I'll be back 4 lines of data (including 0). If the first is DC, then the 2nd should be 1 / 2 Hz 1 Hz = 3rd place and 4th place = 3 / 2 Hz, but what about the frequency of 2 Hz Nyquist, why Don t I get this one? or is there something I don't understand?

  I also tried the example of Units.vi of FFT spectrum and can understand, but I still Don t get it.

  Help, please!

  Best

  Jesper

  FFT returns to power in frequency bins. The frequency of the bins is determined by the Fs (sampling frequency) divided by N (number of points), from DC (0Hz). For your case, the table returned would be:

  Bin 0: 0-0.5 Hz

  Bin 1: 0, 5 - 1 Hz

  Tray 2: 1-1.5 Hz

  Bin 3: 1.5 - 2 Hz

  So effectively Bin 3 holds the power of 1.5 to 2 Hz (which contains your Nyquist frequency).

• USB-6251 power(+5V) LED is not solid but flashes when turned on

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  I have been using USB-6251 for 3 years without problems until last week.

  Since last Thursday, when I turn on the Board of Directors, the power led (which is located on the top, we write also POWER (+ 5V)) starts to blink and my laptop does not recognize the Governing Council.

  Before this problem, when I turn on the bud the power led was solid and my laptop automatically recognizes the jury.

  I'd be happy if someone can help me to know what happened to my Board of Directors.

  Thank you!

  skim,

  I would try a couple of things:

  (1) try a different USB port on the computer, and probably not the question, but a good starting point.

  (2) validate the external power supply you are using is to show the voltage it is assumed.

  (3) try another computer if you have one.

  (4) check the fuse (Details) USB device and see if it is blown. I can't find anything in the M-Series user manual the retail why should 5V power light blink.

  If none of these work, then the best option is to return the material to the OR and get it fixed.

  RMA procedures for hardware details are here.

• 6210 USB output impedance

  Hello

  I use the 6210 USB to generate a train of pulses with the meter. I would like to know the output impedance of the acquisition of data to avoid the impedance mismatch. He is waiting to drive a load of 50 ohms? I couldn't find this info in the manual.

  Thank you

  Miko

  Hi Miko,

  Why are you concerned about impedance matching and what type of device you connect to? The USB-6210 using TTL and therefore values of impedance. As long as your current is lower than-16 my for 2.7 V or - 6 mA for 3.8 V (as specified in the technical manual of the product: http://www.ni.com/pdf/manuals/371932f.pdf), you should be fine.

• Looking for a GPIB syntax for the test on the channel Code to reverse output power precision driver

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  I'm working on a module with Labview for a 'Channel of Code to reverse output driver power precision' test.

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  http://Wireless.Agilent.com/rfcomms/refdocs/cdma2k/cdma2000_gen_op_overview_meas_wquality.php#BABCHH...

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  Thank you, StevieZ.   The problem has been solved, I does not recognize that the test had already been done before.