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National Instruments
13
NI 9155 Operating Instructions and Specifications
Checking MXI-Express LINK LEDs for Status
After powering on the chassis and host system, check the MXI-Express
LINK LEDs to ensure that all connected systems are linked and
communicating properly. The MXI-Express LINK LEDs of the NI 9155
indicate the following:
Note
For information about PCI Express clock compatibility with the NI 9155, go to
ni.com/info
and enter the Info Code
915xclock
.
Powering Down the MXI-Express System
Always power down the host system before powering down any connected
NI 9155 chassis. When the host system is powered down, the order in
which connected NI 9155 chassis are powered down is not important.
Configuring DIP Switches
Figure 11.
DIP Switches
All of the DIP switches are in the OFF position when the chassis is shipped
from National Instruments.
Table 2.
NI 9155 MXI-Express LINK LED Indications
LINK LED Appearance
Meaning
Off
Chassis power is off.
Solid yellow
Link is not established.
Solid green
Link is established.
Blinking yellow
PCI Express clock is incompatible with
NI 9155.
NO FPGA APP
USER FPGA1
USER FPGA2
USER FPGA3
OFF
