PXI Express Chassis Doesn’t Power Up When I Power Cycle the Host ComputerHardware: PXI/CompactPCI>>Chassis>>PXIe-1062Q
Problem: I’ve noticed that when I have a chassis connected to a host computer through MXI Express x4, the chassis doesn’t wake up if the host is shut down and restarted. How can I fix this? Solution: PXI Express has access to a wake signal, new to the PXI form factor, which enables the system’s main power rails and reference clocks. The MXI Express system controller handles the wake signal and therefore controls the power up state of some PXI Express chassis such as the NI PXIe-1062. When you power cycle your host computer, the MXI Express system controller has to send a wake signal to the chassis for it to power up again. This functionality is disabled by default to ensure that the downstream chassis are powered up before the host. Some PXIe modules also have access to the wake signal and therefore have the capability to power up both your host computer and PXIe chassis. When a module in the PXIe chassis sends a wake signal to the system, the host computer will power up, but the chassis won't power up by default. An example of a board with this capability is a PXIe network card. This board sits in the PXIe chassis and it can send a wake signal to power up the system. If Remote Power On is disabled (by default) only the host computer will power up. In order for the PXIe chassis to power up when wake signal is sent from the chassis, you have to enable Remote Power On for the PXIe MXI Express x4.
For instructions on how to enable the Remote Power On option, please reference the link to KB ID 3X9GNCD8 attached below. Related Links: KnowledgeBase 3X9GNCD8: MXI Express x1/x4 for PXI Express Powerup Options Attachments:
Report Date: 09/17/2006 Last Updated: 11/29/2006 Document ID: 41GCFPF7 |
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