National Instruments NI EDIDS-2400 Series, User Manual, Page: 54 / 314

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3.3.3.4 Digital Signals to NI 9411 Digital Input Module
Each NI 9411 digital input module has six digital inputs. Each DI Driver System, regardless of number of DI Driver
channels, contains at least one NI 9411 module in slot one (1). EDIDS-2409 and EDIDS-2412 systems contain an
additional NI 9411 module in slot four (4).
NI 9411 Module Breakout Harness
Each digital input signal pair has a different wire color and is labeled with the associated digital input channel and
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.
Pin Description Pin # Wire Color
DI0a 1 Orange
DI0b* 9 Orange/Black
DI1a 2 Green
DI1b* 10 Green/Black
DI2a 3 Blue
DI2b* 11 Blue/Black
Supply (+5 V Out) 4 Red
Supply (+5 V Out) 5 Red/Black
DI3a 6 White
DI3b* 13 White/Black
DI4a 7 Green/White
DI4b* 14 Blue/White
DI5a 8 Black/White
DI5b* 15 Red/White
Common (COM) 12 Black
Table 3.3.3.4.a, NI 9411 Module Breakout Harness Wire Color
*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 Mfr.’s Part #
AMP HDP-20 Series 109 15P Receptacle Housing 205163-1
AMP HDP-20 Series 109 Crimp Socket Contact 205090-1
Norcomp D-Sub Connector Hood, 15P 45 Degree 971-015-020R121
Paladin Tools Crimper, 26-20 AWG PA-1460