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National Instruments Corporation
17
NI 9792 WSN Real-Time User Guide and Specifications
Connecting USB Mass Storage Devices to the NI 9792
The NI 9792 supports common USB mass storage devices such as USB Flash drives and USB-to-IDE
adapters formatted with FAT16 and FAT32 file systems. LabVIEW usually maps USB devices to the
U:
,
V:
,
W:
, or
X:
drive, starting with the
U:
drive if it is available. You can connect multiple USB mass
storage devices to the NI 9792 if you use a USB hub. Refer to the
LabVIEW Help
for more information.
Note
If the NI 9792 is not in a hazardous location, you can connect and disconnect USB devices
without affecting operation.
Configuring DIP Switches
Figure 13.
NI 9792 DIP Switches
All of the DIP switches are in the OFF position when the NI 9792 is shipped from National Instruments.
SAFE MODE Switch
The position of the SAFE MODE switch determines whether the embedded LabVIEW Real-Time
engine launches when the NI 9792 boots. If the switch is in the OFF position, the LabVIEW Real-Time
engine launches. Keep this switch in the OFF position during normal operation. If the switch is in the
ON position when the NI 9792 boots, the NI 9792 launches only the essential services required for
updating its configuration and installing software. In the latter case, the LabVIEW Real-Time engine
does not launch.
Table 1.
DB-9 Pin Descriptions
Pin
Signal
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
SAFE MODE
CONSOLE OUT
IP RESET
NO APP
USER1
OFF
ON
