PXI devices not detected

[Pierce]

I have used the PXI system with PXI-1000b chassis for half a year and the last time is a week ago.The chassis is connected to my computer with PCI-PXI-8335.I have never changed the settings of the computer and the devices.But the devices disappear now,both in the MAX and the Device Manager of Win2k.I have checked it according to the PXI-MXI-3 troulbeshooting advice,but all the solutions didnt help.My partner told me he crushed the fibre by accident,I am not sure if it is the problem.The link lights in the Pxi-8335 and Pci-8335 stay on continuously,but what does each LED stand for? Will they flash if the optical fibre is broken? How can I find where the problem locate, the MXI-3 board,the computer or the PXI chassis?

[JuliaD]

Hi Pierce,

It sounds like something has gone wrong. I'll start by explaining what the LEDs should look like during the power up sequence. There are 4 LEDs:

top-left is green = Power
top-right is yellow = TX
bottom-left is green = Link
bottom-right is yellow = RX

First you power on the chassis alone. The top 2 LEDs (Power and TX) will be on solid (green and yellow respectively). Then once the PC is power on, the Power and Link will be on solid (both green) and the TX and RX should be flashing yellow.

Also, are you running the MXI-3 optimization software? This software will inform you if the MXI-3 link is not working. This software can be obtained from our web site at the following link:

http://digital.ni.com/softlib.nsf/webcategories/852564
10006C055586256BE60070B83C?opendocument

As far as being able to detect which part of the MXI-3 link is malfunctioning, the only way to do this is to swap out individual components one at a time (i.e. the PCI-MXI-3, the PXI-MXI-3 and the cable). Since you mentioned that the cable was crushed, it seems likely that this is what is causing the problem. Try to switch out the cable with a known working cable and see if this fixes the problem.

Let me know if you have any other questions or comments. Have a great day!

Regards,
Julia Dinolfo
Applications Engineer
National Instruments

[JOelei]

Dear Julia 6 months ago I was working using the PXI-1000B chassis with a PCI 4351 temperature & voltage, today I tried to work again, but the RX & Tx led didn't flashed when the computer was able to work, Computer can recognize the PCI card in the MAX,but when I Try to test the device a message appears saying that it did not pass the test. I'm using Win XP SP2,LABview 8.5, MXI-3 ver 1.15