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6682h Network speed selection for IEEE 1588

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Hi all, 

 

I'm currently trying to sync two PXI Chassis with IEE1588 with the PXI-6682h board.

I expected around +- 50ns of offset between the two chassis and I'm observing +-400 ns of offset with a great jitter...

 

I know that the precision is better when the two PXI chassis are connected directly together through a Cat 5 ethernet cable, that's my case !

 

How ever I noticed that the speed LED 10/100 is OFF on my 6682, it seems that my 6682 interfaces work at 10MBps...

 

I try to change the interface speed with max but if I choose another setting that autonegociating, my ACT/LED passed OFF and I have no synchro...

 

So my question is: how can I configure my 6682 to work at 100MBps ?

 

Best regards


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