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National Instruments NI 9401 - page 1
OPERATING INSTRUCTIONS AND S PECIFICATIONS NI 9401 8-Channel, TTL Digital Input/Output Mo dule ni.com/manuals Deutsch Français ...
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National Instruments NI 9401 - page 2
NI 9401 Operating I nstruction s and Specificati ons 2 ni.com This doc u ment describes ho w to u se the National Instr u ments 9 401 and incl u des specif ications and pin assignments for the NI 9401. Vi s i t ni.com/info and enter rd s oftwarever s ion to det ermine which software yo u need for the mod u les yo u are u sing. For information abo u ...
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National Instruments NI 9401 - page 3
© National Inst ruments Corp. 3 NI 9401 Operating Instructi ons and Specific ations Safety Guidelines Operate the NI 9401 only as described in these operating instr u ctions. Hot Surface This icon denotes that the component may be hot. T o u ching this component may res u lt in bodily inj u ry . Safety Guidelines fo r Hazardous Loca tions The NI 9 ...
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National Instruments NI 9401 - page 4
NI 9401 Operating I nstruction s and Specificati ons 4 ni.com Caution S u bstit u tion of components may impair s u itability for Class I, Division 2. Caution For Zone 2 applications, install the system in an enclos u re rated to at least IP 54 as defined b y IEC 60529 an d EN 60529 . Caution For Zone 2 applications, connected signals m u st be wit ...
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National Instruments NI 9401 - page 5
© National Inst ruments Corp. 5 NI 9401 Operating Instructi ons and Specific ations Special Conditions fo r Marine Ap plications Some mod u les are Lloyd’ s Re gister (LR) T ype Approv ed for marine applications. T o verify Llo yd’ s Register cert ification, visit ni.com/certification and search for the LR certificate, or look for the Lloyd’ ...
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National Instruments NI 9401 - page 6
NI 9401 Operating I nstruction s and Specificati ons 6 ni.com Connecting the NI 9401 The NI 9401 has a 25-pin DSUB connector that pro vides connections for ei ght digital inp u t/o u tp u t channels. Figure 1. NI 9401 Pin Assignments 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 ...
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National Instruments NI 9401 - page 7
© National Inst ruments Corp. 7 NI 9401 Operating Instructi ons and Specific ations Each channel has a DIO pin to which yo u can connect a digital inp u t or o u tp u t device. The eight DIO ch annels are in ternally referenced to COM, so yo u can u se any of the nine COM lines as a reference for the e xternal signal. The DIO channels are gro u pe ...
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National Instruments NI 9401 - page 8
NI 9401 Operating I nstruction s and Specificati ons 8 ni.com Fig u re 2 ill u strates how to connect an SPI de vice to the NI 9401. In this e xample, the thre e channels assigned to o u tp u t signals are on one port and the channel assigned to an inp u t signal is on the other port. Figure 2. Connecting an SPI D evice to the NI 9401 NI 9401 DIO3: ...
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National Instruments NI 9401 - page 9
© National Inst ruments Corp. 9 NI 9401 Operating Instructi ons and Specific ations Fig u re 3 ill u strates how to connect se v era l types of digital de vices to the NI 9401. Figure 3. Connecting Digital Devices to the NI 9401 TTL S ignal +5 V +5 V LED DIO0 as Inp u t DIO1 as Inp u t COM DIO7 as O u tp u t NI 9401 Dev 3 Dev 2 Dev 1 ...
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National Instruments NI 9401 - page 10
NI 9401 Operating I nstruction s and Specificati ons 10 ni.com Overcurrent Protection Overc u rrent protection on the NI 9401 allo ws only a specified amo u nt of c u rrent for switching DIO channels or so u rcing the o u tp u t load. If the NI 9401 goes into an ov erc u rrent state, b y exceed ing the specif ied maxim u m switching freq u enc y or ...
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National Instruments NI 9401 - page 11
© National Inst ruments Corp. 11 NI 9401 Operating Instructi ons and Specific ations Sleep Mode This mod u le s u pports a low-po wer sleep mode. S u pport for sleep mode at the system le vel depe nds on the chassis that the mod u le is pl u gged into. Refer to the chassis man u al for information abo u t s u pport for sleep mode. If the chassis s ...
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National Instruments NI 9401 - page 12
NI 9401 Operating I nstruction s and Specificati ons 12 ni.com Specifications The follo wing specif ications are typical for the rang e – 40 to 70 °C u nless otherwise noted. All v oltages are relat iv e to COM u nless otherwise noted. Input/Output Characteristics N u mber of channels .................. ........ 8 DIO cha nnels Defa u lt po wer- ...
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National Instruments NI 9401 - page 13
© National Inst ruments Corp. 13 NI 9401 Operating Instructi ons and Specific ations Digital logic le v els Inp u t V oltage .......... ......... ........... ... 5.25 V max High, V IH ....... ......... ........... ... 2 V min Low , V IL ..... ......... ............ ..... 0.8 V max O u tp u t High, V OH ...... ........... ......... ... 5.25 V max S ...
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National Instruments NI 9401 - page 14
NI 9401 Operating I nstruction s and Specificati ons 14 ni.com Maxim u m inp u t signal switching freq u ency b y n u mber of inp u t channels, per channel 8 inp u t channels ... ........... ......... ... 9 MHz 4 inp u t channels ... ........... ........... . 16 MHz 2 inp u t channels ... ........... ........... . 30 MHz Maxim u m o u tp u t signal ...
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National Instruments NI 9401 - page 15
© National Inst ruments Corp. 15 NI 9401 Operating Instructi ons and Specific ations MTBF .......... ........... .................. ........ 1,244,763 ho u rs at 25 °C; Bellcore Iss u e 2, Method 1, Case 3, Limited P art Stress Method Note Contact NI for Bellcore MTBF specifications at other temperat u res or for MIL-HDBK-21 7F specifications. Po ...
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National Instruments NI 9401 - page 16
NI 9401 Operating I nstruction s and Specificati ons 16 ni.com Safety Maximum Voltage 1 Connect only v oltages that are within the follo wing lim its. Channel-to-COM .. ........... ............ ..... ±30 V max on one channel at a time, Meas u rement Category I Isolation Voltages Channel-to-channel ........ ........... ........ None Channel-to-eart ...
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National Instruments NI 9401 - page 17
© National Inst ruments Corp. 17 NI 9401 Operating Instructi ons and Specific ations s u pply system that powers eq u ipment. This cate gory is for meas u rements of voltages from spec ially protecte d secondary circ u its. S u ch v o ltage meas u re ments incl u de signal le v els, special eq u ipment, limited-ene rg y parts of eq u ipment , circ ...
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National Instruments NI 9401 - page 18
NI 9401 Operating I nstruction s and Specificati ons 18 ni.com Hazardous Locations U.S. (UL) ........ ........... ......... ........... ... Class I, Division 2, Gro u ps A, B, C, D, T4; Class I, Zone 2, AEx nC IIC T4 Canada (C-UL) ............ ......... ........... . Class I, Division 2, Gro u ps A, B, C, D, T4; Class I, Zone 2, Ex nC IIC T4 E u ro ...
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National Instruments NI 9401 - page 19
© National Inst ruments Corp. 19 NI 9401 Operating Instructi ons and Specific ations Operating h u midity (IEC 60068-2-56)....... ........... ............ 10 to 90% RH, noncondensing Storage h u midity (IEC 60068-2-56)....... ........... ............ 5 to 95% RH, noncondensing Maxim u m altit u de.......... ......... .......... 2,000 m Poll u tion ...
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National Instruments NI 9401 - page 20
NI 9401 Operating I nstruction s and Specificati ons 20 ni.com Electromagnetic Compatibility This prod u ct is designed to meet the req u ire ments of the follo wing standards of EMC for electrical eq u ipment for meas u remen t, control, and laboratory u se: • EN 61326 EMC req u irements; Ind u strial Imm u nity • EN 55011 Emissions; Gro u p 1 ...
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National Instruments NI 9401 - page 21
© National Inst ruments Corp. 21 NI 9401 Operating Instructi ons and Specific ations ni.com/certification , search by mod u le n u mber or prod u ct line, and click the appropriate link in the Certification col u mn. Environmental Mana gement National Instr u ments is committe d to designing and man u fact u ring prod u cts in an en vironmentally ...
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National Instruments NI 9401 - page 22
NI 9401 Operating I nstructions and Specifications 22 ni .com Where to Go for Support The National Instr u ments W eb site is yo u r complete reso u rce for technical s u pport. At ni.com/ s upport yo u have access to ev erything from tro u bleshooting and applic ation de velopment self-help reso u rces to email and phone assistance from NI Applica ...
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National Instruments NI 9401 - page 23
© National Inst ruments Corp. 23 NI 9401 Operating Instructions and Specific ations telephone s u pport o u tside the United Stat es, contact yo u r local branch off ice: A u stralia 1800 300 800, A u stria 43 662 457990-0, Belgi u m 32 (0) 2 757 0020, Brazil 55 11 3262 3599, Canada 800 433 3488, China 86 21 5050 9800, Czech Rep u blic 420 224 235 ...
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National Instruments NI 9401 - page 24
© 2005–2008 Nati onal Instruments Corp. All rights reserved. 374068D -01 Jun08 National Instruments, NI, n i.com, and LabVIEW are trademarks of National Instruments C orporation. Refer to the Terms of Use section on ni.com/legal for more informati on about National Instruments t r ademarks. Other product and company names ment ioned herein are t ...
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