MXI-4 Question

[lilocomotiv]

I recently changed from MXI-3 to MXI04 interface for my PXI systems. With MXI-3, as soon as I turn ON my PXI chassis, the Rx LED on the 8331 board turns ON. When I turn on my host PC Tx LED turn ON too. But with MXI-4, Rx or Tx LED will not turn ON unless I try a read or write from MAX. Is it normal? I thought they(Rx/Tx LEDs) have to be ON all the time as long as the power is up. Thanks in advance

[A_Ryan]

lilocomotiv,

The behavior you seeing is expected.  The Rx and Tx should blink when there is activity and stay off by default for MXI-4.  Which would make sense why you only see these LEDs light up when you communicate through MAX to the PXI chassis.

[lilocomotiv]

Thank you much!