Appendix C
LED Indicators
VXIpc-850 Series User Manual
C- 2
© National Instruments Corporation
LEDs and System Startup Cycle
Table C-1 shows a system startup cycle and possible points of failure,
up to and including the state in which VXIinit asserts the ONLINE
LED.
Table C-1. LEDs and System Startup Status
Step LEDs Lit
Status
Possible Problem if VXIpc-850 Fails
1
None
Machine just turned on.
The VXIpc-850 is not receiving power.
2
FAILED ,
SYSFAIL
Now asserting SYSFAIL
because VXIbus interface has
not been initialized yet.
Power-on self configuration (POSC)
cannot execute because of problems
with system reset or because the
POSCEN switch is incorrectly
configured.
3
FAILED ,
TEST
VXI interface is being
initialized by MITE power-on
self configuration (POSC)
circuitry.
POSC has stalled.
4
TEST
POSC circuitry has initialized
VXI interface, setting PASSED
and DONE bits.
POSC stalled before clearing the TEST
LED.
5
None
POSC cycles are complete.
VXI port is ready to respond to
Resource Manager inquiries.
POSC completed successfully;
however, Resman either hung or was
not executed.
6
ONLINE
Resman has been executed,
indicating that the VXI
software can now communicate
with the VXI circuitry.
Resman interface initialized
successfully.
If either the SYSFAIL or FAILED LED remains lit, perform the
following steps:
1. Power off the mainframe.
2. Remove all other modules from the mainframe.
3. Make sure that the VXIpc-850 jumper settings are correct.
4. Make sure that the VXIpc-850 is seated properly in the mainframe.
5. Power on the mainframe and observe whether the SYSFAIL and
FAILED LEDs become unlit some time before the operating
system boots .