How Do I Change the Input Impedance of my NI 655x?Hardware: Digital I/O (DIO)>>High-Speed>>PCI-6551, Digital I/O (DIO)>>High-Speed>>PCI-6552, Digital I/O (DIO)>>High-Speed>>PXI-6551, Digital I/O (DIO)>>High-Speed>>PXI-6552
Problem: Due to customer requests, National Instruments now offers all NI 6551 and NI 6552 digital waveform generator/analyzers with a 50 kΩ input impedance, rather than the previous setting of 10 kΩ. To determine whether your device has an input impedance of 10 kΩ or 50 kΩ, refer to the device part number. The part number can be found printed on your device and should be similar to 189876C-03 (PXI) or 190941C-04 (PCI). Your particular part number may vary slightly, but the letter, in this case "C," refers to the device revision. Revisions A and B of the NI 655x were shipped with 10 kΩ input impedance. Revision C and later of the NI 655x ship with 50 kΩ input impedance. If I have an existing NI 6551 or NI 6552 digital board or purchase a new device, can I have the impedance value changed to the other value? Solution: Yes, National Instruments can change the input impedance of any NI 6551 or NI 6552 through its standard repair service. To have the input impedance value changed, simply call National Instruments and request to have your digital device returned for an RMA (Returned Merchandise Authorization). You must mention ECO 40597 and specify whether the 10 kΩ or 50 kΩ input impedance is requested. The cost for this change is the same price as a repair request that results in an NTF (No Trouble Found), which is currently $100 USD. Please make sure the applications engineer understands you wish to return the card for ECO 40597, because the input impedance will remain unchanged if the card is RMAed for any other reason. Related Links: Attachments:
Report Date: 01/19/2006 Last Updated: 03/24/2006 Document ID: 3TICD8VB |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
