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Unable to use NI USB Serial Ports after Installing NI-Serial After upgrading or installing NI-Serial on a new system, I was unable to use the NI USB or ExpressCard serial ports attached to my computer. This hardware worked fine when a previous version of NI-Serial was installed on my system or when I use it with another computer. How can I get my ports URL: http://digital.ni.com/public.nsf/allkb/099F2D2720D86E8586257479004B8A37

Why Is My USB Serial Device Slower Than Other Serial Interfaces? I have a USB serial interface, like the USB-RS232, and when I run code, it is significantly slower than running the same code on any other serial interface (like a built in serial port). Why is this happening? URL: http://digital.ni.com/public.nsf/allkb/251A0AFC807ECFE2862573B4007ABA3B

USB 232/4 Device Shuts Down My USB 232/4 device works for a while and suddenly turns off and then back on after a couple of minutes. I have already checked the USB power settings in Device Manager to disable allowing to turn off device for power savings. I also verified that only one device is connected to one USB root URL: http://digital.ni.com/public.nsf/allkb/9D3890BE49FF5D43862573A7006E5612

Receiving Error when accessing properties of a Serial Device through a USB Serial Adapter I’m using a third party serial device via a third party USB Serial adapter. I am able to configure and communicate with it under hyper-terminal. When testing the device in MAX, I am unable to change items such as the Baud Rate and Parity Bits. The error I receive is 0xBFFF0072. URL: http://digital.ni.com/public.nsf/allkb/D42EB343B549A27A8625734400574D8A

Differences between the PXI-8430/16 and the Legacy PXI-8420/16 I am evalutating the two sixteen port NI-Serial boards and have some questions about them. I noticed that the Legacy board is more expensive. Are there any other differences between the two boards? URL: http://digital.ni.com/public.nsf/allkb/DCE3DEA4B0C8E6EB86257333006D91B2

Is NI-Serial Driver Required to Use My Computer's Serial COM Ports? I found the NI-Serial driver on the Drives and Updates page of www.ni.com. Do I need this driver to use my computer's serial ports? URL: http://digital.ni.com/public.nsf/allkb/CFC1F6920586F06C862572D100752478

Measuring the Output of a Serial Port for Low Level Analysis I'm using a serial device, and I'm unsure of the output of my serial port. Is there a way to view the signal that is being produced by the serial port in the lowest level possible. URL: http://digital.ni.com/public.nsf/allkb/79B995C3638F4177862572C900593631

Pinout For Serial Ports What is the pinout for my serial port? What pins do I need to connect for a loop back test? URL: http://digital.ni.com/public.nsf/allkb/B9A38929D546B796862572C7005F0644

Where Can I Find The Warranty For My NI Hardware? I'm trying to find the warranty information for my NI hardware. Where can I find it? URL: http://digital.ni.com/public.nsf/allkb/8341879DC763DF5886257289005D816E

USB-232/4 Loses Ports In Measurement & Automation Explorer After running my program for a while, my USB-232/4 loses some of its ports in Measurement & Automation Explorer (MAX). Why is this happening? URL: http://digital.ni.com/public.nsf/allkb/6D408190FC62F3888625726000075F4C