Table Of Contents

PXI-2530B Specifications

    Last Modified: December 13, 2017


    The protection provided by the PXI-2530B can be impaired if it is used in a manner not described in this document.


    To ensure the specified EMC performance, operate this product only with shielded cables and accessories.


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

    The following characteristic specifications 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 performance met by a majority of models.
    • Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.

    Specifications are Warranted unless otherwise noted.


    Specifications are valid at 23 °C unless otherwise noted.

    All voltages are specified in DC, ACpk, or a combination unless otherwise specified.



    1-wire 128 x 1 multiplexer

    1-wire dual 64 x 1 multiplexer

    1-wire quad 32 x 1 multiplexer

    1-wire octal 16 x 1 multiplexer

    2-wire 64 x 1 multiplexer

    2-wire dual 32 x 1 multiplexer

    2-wire quad 16 x 1 multiplexer

    4-wire 32 x 1 multiplexer

    4-wire dual 16 x 1 multiplexer

    1-wire 4 x 32 matrix

    1-wire 8 x 16 matrix

    2-wire 4 x 16 matrix




    Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV. Do not connect the PXI-2530B to signals or use for measurements within Measurement Categories II, III, or IV.

    Maximum switching voltage[2]


    60 VDC, 30 VACrms, CAT I


    60 VDC, 30 VACrms, CAT I

    Maximum current (per terminal or internal path)

    0.4 A

    Maximum switching power (per channel, resistive)

    10 W

    DC path resistance[3] (channel-to-common)


    <2 Ω, typical


    ≥3 Ω, typical

    Thermal EMF (1-wire configuration, channel-to-common)

    <50 µV, typical

    RF Performance

    Bandwidth (50 Ω system, 1-wire configuration referenced to 1WREF)

    16 × 1

    >19 MHz, typical

    128 × 1

    >12 MHz, typical

    Channel-to-channel isolation (50 Ω system, 1-wire configuration referenced to 1WREF)

    200 kHz

    >60 dB, typical

    1 MHz

    >40 dB, typical


    Simultaneous drive limit

    64 relays

    Relay operate/release time[4]

    555 µs

    Relay life (no load)[5][6]


    1 × 109 cycles, typical

    Electrical (resistive, <10 pF load)

    10 V, 100 mA

    1 × 108 cycles, typical

    25 V, 400 mA

    5 × 106 cycles, typical

    60 V, 160 mA

    1 × 106 cycles, typical


    Input trigger


    PXI trigger lines <0…7>, front panel

    Minimum pulse width[7]

    150 ns

    Front panel input voltage

    -0.5 V, minimum

    +0.7 V, VIL maximum

    +2.0 V, VIH minimum

    +3.3 V, nominal

    +5.5 V, maximum

    Output trigger


    PXI trigger lines <0…7>, front panel

    Pulse width

    Software-selectable: 1 µs to 62 µs

    Front panel voltage

    +3.3 V TTL, 8 mA, nominal


    Relay type[8]


    Front panel connector

    LFH matrix 50, 160 positions, female

    PXI power requirement

    5 V

    4.2 W

    3.3 V

    1.2 W

    Dimensions (L × W × H)

    3U, one slot, PXI/cPCI module

    21.6 × 2.0 × 13.0 cm (8.5 × 0.8 × 5.1 in.)


    266 g (9.4 oz)


    Operating temperature

    0 °C to 55 °C

    Storage temperature

    -40 °C to 70 °C

    Relative humidity

    5% to 85%, noncondensing

    Pollution Degree


    Maximum altitude

    2,000 m

    Indoor use only.

    Shock and Vibration

    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. Nonoperating test profile exceeds the requirements of MIL-PRF-28800F, Class 3.)

    Compliance and Certifications


    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 61010-1

    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 sensitive electrical equipment for measurement, control, and laboratory use:

    • EN 61326-2-1 (IEC 61326-2-1): Class A emissions; Basic immunity
    • EN 55011 (CISPR 11): Group 1, Class A emissions
    • AS/NZS CISPR 11: Group 1, 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)

    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 The PXI-2530B has eight interconnected banks of 1-wire 16 × 1 multiplexers. These multiplexers can be used in any combination with the independent topology.
    • 2 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.
    • 3 Path resistance is a combination of relay contact resistance and trace resistance. Contact resistance typically remains low for the life of a relay. At the end of relay life, the contact resistance may rapidly rise above 3 Ω.
    • 4 Certain applications may require additional time for proper settling.
    • 5 Reed relays are highly susceptible to damage caused by switching capacitive and inductive loads. Capacitive loads can cause high inrush currents while inductive loads can cause high flyback voltages. The addition of appropriate resistive protection can greatly improve contact lifetime. For more information about adding protection circuitry to a capacitive load, visit and enter the Info Code relaylifetime. For information about inductive loads, enter the Info Code relayflyback.
    • 6 The relays used in the PXI-2530B are field replaceable.
    • 7 The PXI-2530B can recognize trigger pulse widths less than 150 ns if you disable digital filtering.
    • 8 NI advises against installing reed relay modules directly adjacent to an embedded controller with a magnetic hard drive because of the sensitivity of reed relays and the possibility of interference.

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