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3.3.3.4 Digital Signals to NI 9411 Digital Input Module
The NI 9411 digital input module has six digital inputs. Each DI Driver System contains one NI 9411 module in slot
one (1).
NI 9411 Module Breakout Harness
Each digital input signal pair has a different wire color and is labeled with the associated
signal polarity. In addition to the signal wire pairs there are 5V output wires (red and red/black) and COM wire
(black). The 5V regulated output is only active if the Vsup and COM screw terminal block is externally powered. Wire
gauge is 22 AWG.
*The "b" pins of the NI 9411 should not be connected for single-ended digital signals. The "b" pins should be used for
optical encoders with differential or complementary outputs. Please refer to the NI 9411 Operating Instructions and
Specifications for details.
List of the connector parts used to assemble the NI 9411 module pigtail:
Description
AMP HDP-20 Series 109 15P Receptacle Housing
AMP HDP-20 Series 109 Crimp Socket Contact
Norcomp D-Sub Connector Hood, 15P 45 Degree
Paladin Tools Crimper, 26-20 AWG
50 | ni.com | NI DIDS-2100 Series User Manual
Pin Description
Pin #
DI0a
1
DI0b*
9
DI1a
2
DI1b*
10
DI2a
3
DI2b*
11
Supply (+5 V Out)
4
Supply (+5 V Out)
5
DI3a
6
DI3b*
13
DI4a
7
DI4b*
14
DI5a
8
DI5b*
15
Common (COM)
12
Table 3.3.3.4.a, NI 9411 Module Breakout Harness Wire Color
Wire Color
Orange
Orange/Black
Green
Green/Black
Blue
Blue/Black
Red
Red/Black
White
White/Black
Green/White
Blue/White
Black/White
Red/White
Black
Mfr.'s Part #
205163-1
205090-1
971-015-020R121
PA-1460
digital input channel
and
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