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National Instruments Corporation
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VXIpc 700 Series User Manual
C
LED Indicators
This appendix describes how to read the LEDs on the front panel to
interpret the status of the VXIpc 700 Series.
VXIbus Interface Status LEDs
The VXIbus interface status LEDs are located at the top of the module and
include four LEDs: FAILED, SYSFAIL, ONLINE, and TEST. They
indicate the various stages of initialization that occur as the VXIpc-700
boots. The following paragraphs describe each LED.
SYSFAIL LED
The SYSFAIL LED lights when the VMEbus SYSFAIL signal is asserted.
It does not necessarily indicate that the VXIpc 800/700 is asserting
SYSFAIL, only that there is a device in the system asserting SYSFAIL.
FAILED LED
The FAILED LED lights when the VXIpc-700 is driving the SYSFAIL
signal. The VXIpc-700 asserts SYSFAIL when the PASSED bit in its
VXIbus status register is clear. The PASSED bit is set by the power-on self
configuration circuitry (POSC) when it has completed initializing the
VXIbus interface.
ONLINE LED
The ONLINE LED lights when the Resource Manager has successfully
completed and the VXIbus interface is ready for application programs.
TEST LED
The TEST LED lights when the power-on self configuration circuitry is
configuring the VXIbus interface.