Preparing the Environment
Ensure that the environment in which you are using the NI 9401 meets the following
specifications.
Operating temperature (IEC 60068-2-1, IEC 60068-2-2)
-40 °C to 70 °C
Operating humidity (IEC 60068-2-78)
10% RH to 90% RH, noncondensing
Pollution Degree
2
Maximum altitude
2,000 m
Indoor use only.
Note
Refer to the device datasheet on
for complete
specifications.
Connecting the NI-9401
The NI-9401 provides connections for 8 digital input/output channels.
Figure 2. NI-9401 Pinout
COM
NC
COM
COM
NC
COM
COM
NC
COM
COM
NC
COM
COM
DIO0
NC
DIO1
DIO2
NC
DIO3
DIO4
NC
DIO5
DIO6
NC
DIO7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
NI-9401 Signals
Signal
Description
COM
Common reference connection to isolated ground
DIO
Digital input/output signal connection
© National Instruments
7
NI-9401 Getting Started
