National Instruments VXIpc-871-700, User Manual

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Appendix B LED Indicators
© National Instruments Corporation B-3 VXIpc 870 Series User Manual
Board Access LEDs
The board access LEDs — ACC , DRV , and SCSI — indicate when
board resources have been accessed. The following paragraphs describe
these LEDs.
ACC LED
When lit, the ACC LED indicates that the VXIpc 870 Series MODID line
is asserted or that another VXIbus master is accessing VXIbus shared
registers or shared memory.
DRV LED
The DRV LED light indicates that an access to the internal hard disk drive
or the CD-ROM on the 871 is occurring.
SCSI LED
The SCSI LED light indicates that an access to an external 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 VXIpc 870 Series.
RX/TX LED
The RX/TX LED lights when the Ethernet interface is receiving or
transmitting a packet.
LNK LED
The LNK LED indicates link status — in this case, that the controller is
connected to a valid Ethernet port.
100B-T
The 100B-T LED indicates that the current Ethernet connection is at
100 Mbits/s when lit.