Appendix B
LED Indicators
©
National Instruments Corporation
B-3
VXI/VMEpc 600 Series User Manual
If either the SYSF or FAIL 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 VXI/VMEpc 600 Series jumper settings are correct.
4.
Make sure that the VXI/VMEpc 600 Series is seated properly in the
mainframe.
5.
Power on the mainframe and observe whether the SYSF and FAIL
LEDs become unlit some time before the operating system boots.
Board Access LEDs
The board access LEDs—ACC and DRV—indicate when board resources
have been accessed. The following paragraphs describe these LEDs.
ACC LED
When lit, the ACC LED indicates that the VXI/VMEpc 600 Series MODID
line is asserted or that another VXI/VMEbus master is accessing
VXI/VMEbus shared registers or shared memory.
DRV LED
The DRV LED light indicates that an access to the internal hard disk drive
is occurring.
Ethernet LEDs
The Ethernet LEDs (RX, TX, LNK, and 100B-T) indicate the status of the
Ethernet interface on the VXI/VMEpc 600 Series.
RX LED
The RX LED lights when the Ethernet interface is receiving a packet.
TX LED
The TX LED lights when the Ethernet interface is transmitting a packet.
LNK LED
The LNK LED indicates link status, in this case that the controller is
connected to a valid Ethernet port.