National Instruments VME-SB2020 Getting Started page 48

Appendix B
Perform the following checks to determine the problem with your MXIbus cables:
1. Check the pins on your cable connectors. Sometimes the pins get bent and fail to provide the
proper electrical connection.
2. Make sure the each end of the MXIbus cable is plugged into the proper connector. Certain
MXIbus cables have a single-point connector on one end and a daisy-chain connector on the
other end. With these cables, you must connect the single-point connector to the MXIbus
device that is closer in the MXIbus chain to the MXIbus System Controller. The MXIbus
System Controller determines who gains control of the MXIbus. By default, the SB-MXI is
the MXIbus System Controller (set by the Bus Configuration Editor) and the VME-MXI is
not the MXIbus System Controller (set by an onboard slide switch). If you are having
problems, check that the SB-MXI and the VME-MXI are set accordingly.
3. If the cabling problem is not apparent, try another MXIbus cable if you have one available.
If this solves the problem, contact National Instruments for repair information.
© National Instruments Corporation B-3 VME-SB2020/NI-VXI Solaris Getting Started
Troubleshooting