Table Of Contents


    Last Modified: March 31, 2020

    This document contains specifications for the PXIe-1088 chassis.


    The following section provides information about the PXIe-1088 AC input and DC output.

    AC Input

    Input rating

    100 to 240 VAC, 50/60 Hz, 7 to 3.5 A

    Operating voltage range1

    90 to 264 VAC

    Nominal input frequency

    50 Hz/60 Hz

    Operating frequency range1

    47 to 63 Hz


    78% typical

    Over-current protection

    Internal fuse in line

    Main power disconnect

    The AC power cable provides main power disconnect. Do not position the equipment so that it is difficult to disconnect the power cord. The front-panel power switch causes the internal chassis power supply to provide DC power to the PXI Express backplane.


    Disconnect power cord to completely remove power.

    DC Output

    DC output characteristics of the PXIe-1088.

    Voltage Rail Maximum Current Load Regulation Maximum Ripple and Noise (20 MHz BW)
    +5V_AUX 2.7 A ±5% 50 mVpp
    +12 V 28.6 A ±5% 120 mVpp
    +5 V 27.1 A ±5% 50 mVpp
    +3.3 V 30.8 A ±5% 50 mVpp
    -12 V 0.75 A ±5% 120 mVpp

    Maximum total available power for the PXIe-1088 is 329 W.

    The maximum combined power available on +3.3 V and +5 V is 162 W.

    Table 1. Backplane Slot Current Capacity
    Slot +5 V V (I/O) +3.3 V +12 V -12 V 5 VAUX
    System Controller Slot 9 A - 9 A 11 A - 2 A
    Hybrid Peripheral Slot with PXI-5 Peripheral - - 3 A 6 A - 1 A
    Hybrid Peripheral Slot with PXI-1 Peripheral 6 A 5 A 6 A 1 A 1 A -

    PCI V(I/O) pins in Hybrid Peripheral Slots are connected to +5 V.


    The maximum power dissipated in the System Controller Slot should not exceed 140 W.


    The maximum power dissipated in a peripheral slot should not exceed 58 W. Refer to the Operating Environment section for ambient temperature considerations at 58 W.

    Over-current protection

    All outputs are protected from short circuit and overload, they recover and return to regulation when the overload is removed and the power is cycled.

    Over-voltage protection

    +3.3 V clamped at 3.7 V to 4.3 V, +5 V clamped at 5.7 V to 6.5 V, +12 V clamped at 13.4 V to 15.6 V

    Chassis Cooling

    Module cooling

    Forced air circulation (positive pressurization) through two 150 CFM fans

    Module slot airflow direction

    Bottom of module to top of module

    Module intake

    Bottom of chassis

    Module exhaust

    Top, right side of chassis

    Slot cooling capacity

    58 W for slot 2 to slot 8; 38 W for slot 9

    Power supply cooling

    Forced air circulation through integrated fans

    Power supply intake

    Front and left side chassis

    Power supply exhaust

    Rear of chassis

    Minimum chassis cooling clearances


    44.45 mm (1.75 in.)


    44.45 mm (1.75 in.)


    44.45 mm (1.75 in.)



    44.45 mm (1.75 in.)


    25.4 mm (1.00 in.)


    Maximum altitude

    2,000 m (6,560 ft.), 800 mbar (at 25 °C ambient, high fan mode)

    Pollution Degree


    Indoor use only.

    Operating Environment

    Ambient temperature range

    When all peripheral modules require ≤38 W cooling capacity per slot

    0 °C to 50 °C (IEC 60068-2-1 and IEC 60068-2-2.)2 Meets MIL-PRF-28800F Class 3 low temperature limit and high temperature limit.

    When any peripheral module requires >38 W cooling capacity per slot

    0 °C to 40 °C (IEC 60068-2-1 and IEC 60068-2-2.)2 Meets MIL-PRF-28800F Class 3 low temperature limit and MIL-PRF-28800F Class 4 high temperature limit.

    Relative humidity range

    20% to 80%, noncondensing

    Storage Environment

    Ambient temperature range

    –40 °C to 71 °C (IEC-60068-2-1 and IEC-60068-2-2.)3 Meets MIL-PRF-28800F Class 3 limits.

    Relative humidity range

    10% to 95%, noncondensing

    Shock and Vibration

    Operational shock

    30 g peak, half-sine, 11 ms pulse (IEC-60068-2-27.)3 Meets MIL-PRF-28800F Class 2 limits.

    Operational random vibration

    5 to 500 Hz, 0.3 grms

    Non-operating vibration

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

    Acoustic Emissions

    Sound Pressure Level (at Operator Position)

    (Tested in accordance with ISO 7779. Meets MIL-PRF-28800F requirements.)

    38 W Profile

    Auto fan (up to 30 °C ambient)

    44.3 dBA

    High fan

    59.0 dBA

    58 W Profile

    Auto fan (up to 30 °C ambient)

    59.0 dBA

    High fan

    62.4 dBA

    Sound Power Level

    38 W Profile

    Auto fan (up to 30 °C ambient)

    54.0 dBA

    High fan

    66.3 dBA

    58 W Profile

    Auto fan (up to 30 °C ambient)

    66.3 dBA

    High fan

    69.5 dBA


    The protection provided by the PXIe-1088 can be impaired if it is used in a manner not described in this document.

    Safety Compliance 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

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

    EMC Guidelines

    This product was tested and complies with the regulatory requirements and limits for electromagnetic compatibility (EMC) stated in the product specifications. These requirements and limits provide reasonable protection against harmful interference when the product is operated in the intended operational electromagnetic environment.

    This product is intended for use in industrial locations. However, harmful interference may occur in some installations, when the product is connected to a peripheral device or test object, or if the product is used in residential or commercial areas. To minimize interference with radio and television reception and prevent unacceptable performance degradation, install and use this product in strict accordance with the instructions in the product documentation.

    Furthermore, any changes or modifications to the product not expressly approved by NI could void your authority to operate it under your local regulatory rules.

    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)
    • 2011/65/EU; Restriction of Hazardous Substances (RoHS)

    Product Certifications and Declarations

    Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for NI products, visit, search by model number, and click the appropriate link.

    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 Commitment to the Environment 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



    3U-sized; one system slot (with three system expansion slots) and eight peripheral slots. Compliant with IEEE 1101.10 mechanical packaging. PXI Express Specification compliant. Accepts both PXI Express and CompactPCI (PICMG 2.0 R 3.0) 3U modules.

    Backplane bare-board material

    UL 94 V-0 Recognized

    Backplane connectors

    Conforms to IEC 917 and IEC 1076-4-101, UL 94 V-0 rated

    System Synchronization Clocks

    10 MHz System Reference Clock: PXI_CLK10

    Maximum slot-to-slot skew

    250 ps


    ±25 ppm max (guaranteed over the operating temperature range)

    Maximum jitter

    5 ps RMS phase-jitter (10 Hz–1 MHz range)


    45% to 55%

    Unloaded signal swing

    3.3 V ±0.3 V


    For other specifications, refer to the PXI-1 Hardware Specification.

    100 MHz System Reference Clock: PXIe_CLK100 and PXIe_SYNC100

    Maximum slot-to-slot skew

    100 ps


    ±25 ppm max (guaranteed over the operating temperature range)

    Maximum jitter

    3 ps RMS phase-jitter (10 Hz to 12 kHz range), 2 ps RMS phase-jitter (12 kHz to 20 MHz range)

    Duty-factor for PXIe_CLK100

    45% to 55%

    Absolute differential voltage (When terminated with a 50 Ω load to 1.30 V or Thévenin equivalent)

    400 mV to 1000 mV


    For other specifications, refer to the PXI-5 PXI Express Hardware Specification


    Standard chassis dimensions


    177.2 mm (6.98 in.)


    355.6 mm (14.00 in.)


    214.2 mm (8.43 in.)


    7.64 kg (16.8 lb)

    Chassis materials

    Extruded Aluminum (6063-T5, 6060-T6), Cold Rolled Steel, Santoprene, Urethane Foam, PC-ABS, Nylon, Polyethylene


    Conductive Clear Iridite on Aluminum, Electroplated Nickel on Cold Rolled Steel, Electroplated Zinc on Cold Rolled Steel

    The following figures show the PXIe-1088 chassis dimensions. The holes shown are for the installation of the optional rack mount kits.

    Figure 1. PXIe-1088 Chassis Dimensions (Front)
    Figure 2. PXIe-1088 Chassis Dimensions (Side)
    Figure 3. PXIe-1088 Chassis Dimensions (Bottom)
    • 1 The operating range is guaranteed by design.
    • 2 This product meets the requirements of the environmental standards for electrical equipment for measurement, control, and laboratory use.
    • 3 This product meets the requirements of the environmental standards for electrical equipment for measurement, control, and laboratory use.

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