Appendix B
LED Indicators
VXI/VMEpc 600 Series User Manual
B-2
©
National Instruments Corporation
LEDs and System Startup Cycle
Table B-1 shows a system startup cycle and possible points of failure, up to
and including the state in which the ONLINE LED is asserted.
Table B-1.
LEDs and System Startup Status
Step
LEDs Lit
Status
Possible Problem if
VXI/VMEpc 600 Fails
1
None
Machine just turned on.
The VXI/VMEpc 600 Series is not
receiving power.
2
FAIL,
SYSF
Now asserting SYSFAIL because
VXI/VMEbus 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
FAIL,
TEST
VXI/VMEbus interface is being
initialized by MITE power-on self
configuration (POSC) circuitry.
POSC has stalled.
4
TEST
POSC circuitry has initialized
VXI/VMEbus 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, the Resource Manager
either hung or was not executed.
6
ONLINE
Resource Manager has been
executed, indicating that the VXI
software can now communicate
with the VXI/VMEbus circuitry.
Resource Manager interface
initialized successfully.