Table Of Contents

NI cDAQ-9184 Specifications

    Last Modified: November 13, 2017


    Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

    Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

    • Typical specifications describe the expected performance met by a majority of the models.
    • Nominal specifications describe parameters and attributes that may be useful in operation.

    Specifications are Typical unless otherwise noted.


    Specifications are valid at 25 °C unless otherwise noted.

    Analog Input

    Input FIFO size

    127 samples per slot

    Maximum sample rate[1]

    Determined by the C Series module or modules

    Timing accuracy[2]

    50 ppm of sample rate

    Timing resolution[2]

    12.5 ns

    Number of channels supported

    Determined by the C Series module or modules

    Analog Output

    Number of channels supported
    Hardware-timed task

    Onboard regeneration



    Determined by the C Series module or modules

    Non-hardware-timed task

    Determined by the C Series module or modules

    Maximum update rate

    Onboard regeneration

    1.6 MS/s (multi-channel, aggregate)


    Determined by the C Series module or modules

    Timing accuracy

    50 ppm of sample rate

    Timing resolution

    12.5 ns

    Output FIFO size

    Onboard regeneration

    8,191 samples shared among channels used


    127 samples per slot

    AO waveform modes

    Non-periodic waveform,

    periodic waveform regeneration mode from onboard memory,

    periodic waveform regeneration from host buffer including dynamic update

    Digital Waveform Characteristics

    Waveform acquisition (DI) FIFO

    Parallel modules

    511 samples per slot

    Serial modules

    63 samples per slot

    Waveform generation (DO) FIFO

    Parallel modules

    2,047 samples per slot

    Serial modules

    63 samples per slot

    Digital input sample clock frequency

    Streaming to application memory



    0 MHz to 10 MHz

    Digital output sample clock frequency

    Streaming from application memory


    Regeneration from FIFO

    0 MHz to 10 MHz


    0 MHz to 10 MHz

    Timing accuracy

    50 ppm

    General-Purpose Counters/Timers

    Number of counters/timers



    32 bits

    Counter measurements

    Edge counting, pulse, semi-period, period, two-edge separation, pulse width

    Position measurements

    X1, X2, X4 quadrature encoding with Channel Z reloading; two-pulse encoding

    Output applications

    Pulse, pulse train with dynamic updates, frequency division, equivalent time sampling

    Internal base clocks

    80 MHz, 20 MHz, 100 kHz

    External base clock frequency

    0 MHz to 20 MHz

    Base clock accuracy

    50 ppm

    Output frequency

    0 MHz to 20 MHz


    Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down

    Routing options for inputs

    Any module PFI, analog trigger, many internal signals


    Dedicated 127-sample FIFO

    Frequency Generator

    Number of channels


    Base clocks

    20 MHz, 10 MHz, 100 kHz


    1 to 16 (integers)

    Base clock accuracy

    50 ppm


    Any module PFI terminal

    Module PFI Characteristics


    Static digital input, static digital output, timing input, and timing output

    Timing output sources[3]

    Many analog input, analog output, counter, digital input, and digital output timing signals

    Timing input frequency

    0 MHz to 20 MHz

    Timing output frequency

    0 MHz to 20 MHz

    Digital Triggers


    Any module PFI terminal


    Software-selectable for most signals

    Analog input function

    Start Trigger, Reference Trigger, Pause Trigger, Sample Clock, Sample Clock Timebase

    Analog output function

    Start Trigger, Pause Trigger, Sample Clock, Sample Clock Timebase

    Counter/timer function

    Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down

    Module I/O States

    At power-on

    Module-dependent. Refer to the documentation for each C Series module.

    Network Interface

    Network protocols


    Network ports used

    HTTP:80 (configuration only), TCP:3580; UDP:5353 (configuration only), TCP:5353 (configuration only); TCP:31415; UDP:7865 (configuration only), UDP:8473 (configuration only)

    Network IP configuration

    DHCP + Link-Local, DHCP, Static, Link-Local

    High-performance data streams


    Data stream types available

    Analog input, analog output, digital input, digital output, counter/timer input, counter/timer output, NI-XNET[4]

    Default MTU size

    1500 bytes

    Jumbo frame support

    Up to 9000 bytes


    Network interface

    1000 Base-TX, full-duplex; 1000 Base-TX, half-duplex; 100 Base-TX, full-duplex; 100 Base-TX, half-duplex; 10 Base-T, full-duplex; 10 Base-T, half-duplex

    Communication rates

    10/100/1000 Mbps, auto-negotiated

    Maximum cabling distance

    100 m/segment

    Power Requirements


    The protection provided by the NI cDAQ-9184 chassis can be impaired if it is used in a manner not described in the NI cDAQ-9181/9184/9188/9191 User Manual.


    Some C Series modules have additional power requirements. For more information about C Series module power requirements, refer to the documentation for each C Series module.


    Sleep mode for C Series modules is not supported in the NI cDAQ-9184.

    Voltage input range

    9 V to 30 V

    Maximum power consumption[5]

    15 W


    The maximum power consumption specification is based on a fully populated system running a high-stress application at elevated ambient temperature and with all C Series modules consuming the maximum allowed power.

    Power input connector

    2 positions 3.5 mm pitch mini-combicon screw terminal with screw flanges, Sauro CTMH020F8-0N001

    Power input mating connector

    Sauro CTF020V8, Phoenix Contact 1714977, or equivalent

    Physical Characteristics

    Weight (unloaded)

    Approximately 643 g (22.7 oz)

    Dimensions (unloaded)

    178.1 mm × 88.1 mm × 64.3 mm (7.01 in. × 3.47 in. × 2.53 in.) Refer to the following figure.

    Screw-terminal wiring


    0.5 mm 2 to 2.1 mm2 (20 AWG to 14 AWG) copper conductor wire

    Wire strip length

    6 mm (0.24 in.) of insulation stripped from the end

    Temperature rating

    85 °C

    Torque for screw terminals

    0.20 N · m to 0.25 N · m (1.8 lb · in. to 2.2 lb · in.)

    Wires per screw terminal

    One wire per screw terminal

    Connector securement

    Securement type

    Screw flanges provided

    Torque for screw flanges

    0.20 N · m to 0.25 N · m (1.8 lb · in. to 2.2 lb · in.)

    If you need to clean the chassis, wipe it with a dry towel.

    Figure 1. NI cDAQ-9184 Dimensions

    Safety Voltages

    Connect only voltages that are within these limits.

    V terminal to C terminal

    30 V maximum, Measurement Category I

    Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.


    Do not connect the system to signals or use for measurements within Measurement Categories II, III, or IV.


    Measurement Categories CAT I and CAT O (Other) are equivalent. These test and measurement circuits are not intended for direct connection to the MAINs building installations of Measurement Categories CAT II, CAT III, or CAT IV.


    Operating temperature (IEC 60068-2-1 and IEC 60068-2-2)

    -20 °C to 55 °C[6]


    To maintain product performance and accuracy specifications when the ambient temperature is between 45 and 55 °C, you must mount the chassis horizontally to a metal panel or surface using the screw holes or the panel mount kit. Measure the ambient temperature at each side of the CompactDAQ system 63.5 mm (2.5 in.) from the side and 25.4 mm (1.0 in.) from the rear cover of the system. For further information about mounting configurations, go to and enter the Info Code cdaqmounting.

    Storage temperature (IEC 60068-2-1 and IEC 60068-2-2)

    -40 °C to 85 °C

    Ingress protection

    IP 30

    Operating humidity (IEC 60068-2-56)

    10% to 90% RH, noncondensing

    Storage humidity (IEC 60068-2-56)

    5% to 95% RH, noncondensing

    Pollution Degree (IEC 60664)


    Maximum altitude

    5,000 m

    Indoor use only.

    Hazardous Locations

    U.S. (UL)

    Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, AEx nA IIC T4

    Canada (C-UL)

    Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, Ex nA IIC T4

    Europe (ATEX) and International (IECEx)

    Ex nA IIC T4 Gc

    Shock and Vibration

    To meet these specifications, you must direct mount the NI cDAQ-9184 system and affix ferrules to the ends of the terminal lines.

    Operational shock

    30 g peak, half-sine, 11 ms pulse (Tested in accordance with IEC 60068-2-27. Test profile developed in accordance with MIL-PRF-28800F.)

    Random vibration


    5 Hz to 500 Hz, 0.3 grms


    5 Hz to 500 Hz, 2.4 grms (Tested in accordance with IEC 60068-2-64. Non-operating test profile exceeds the requirements of MIL PRF-28800F, Class 3.)

    Safety and Hazardous Locations Standards

    This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

    • IEC 61010-1, EN 61010-1
    • UL 61010-1, CSA C22.2 No. 61010-1
    • EN 60079-0:2012, EN 60079-15:2010
    • IEC 60079-0: Ed 6, IEC 60079-15; Ed 4
    • UL 60079-0; Ed 6, UL 60079-15; Ed 4
    • CSA 60079-0:2011, CSA 60079-15:2012

    For UL and other safety certifications, refer to the product label or the Online Product Certification section.

    Electromagnetic Compatibility

    This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:

    • EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
    • EN 55011 (CISPR 11): Group 1, Class A emissions
    • EN 55022 (CISPR 22): Class A emissions
    • EN 55024 (CISPR 24): Immunity
    • AS/NZS CISPR 11: Group 1, Class A emissions
    • AS/NZS CISPR 22: Class A emissions
    • FCC 47 CFR Part 15B: Class A emissions
    • ICES-001: Class A emissions

    In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia and New Zealand (per CISPR 11) Class A equipment is intended for use only in heavy-industrial locations.


    Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.


    For EMC declarations and certifications, and additional information, refer to the Online Product Certification section.

    CE Compliance

    This product meets the essential requirements of applicable European Directives, as follows:

    • 2014/35/EU; Low-Voltage Directive (safety)
    • 2014/30/EU; Electromagnetic Compatibility Directive (EMC)
    • 2014/34/EU; Potentially Explosive Atmospheres (ATEX)

    Online Product Certification

    Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit, search by model number or product line, and click the appropriate link in the Certification column.

    Environmental Management

    NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

    For additional environmental information, refer to the Minimize Our Environmental Impact web page at This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

    Waste Electrical and Electronic Equipment (WEEE)

    EU Customers  

    At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit



    National Instruments符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于National Instruments中国RoHS合规性信息,请登录。(For information about China RoHS compliance, go to

    • 1 Performance dependent on type of installed C Series module and number of channels in the task.
    • 2 Does not include group delay. For more information, refer to the documentation for each C Series module.
    • 3 Actual available signals are dependent on type of installed C Series module.
    • 4 When a session is active, CAN or LIN (NI-XNET) C Series modules use a total of two data streams regardless of the number of NI-XNET modules in the chassis.
    • 5 Includes maximum 1 W module load per slot across rated temperature and product variations.
    • 6 When operating the NI cDAQ-9184 in temperatures below 0 °C, you must use the PS-15 power supply or another power supply rated for below 0 °C.

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