Table Of Contents

PXI-2555 Specifications

Version:
    Last Modified: April 19, 2017

    This document lists specifications for the PXI-2555. All specifications are subject to change without notice.
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    Caution  

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

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    Caution  

    Device relays might change state momentarily during electrostatic discharge.

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    Caution  

    Refer to the Read Me First: Safety and Electromagnetic Compatibility document at ni.com/manuals for important safety and compliance information.

    Topology

    Terminated 4 × 1 multiplexer

    About These Specifications

    Specifications characterize the warranted performance of the instrument under the stated operating conditions.

    Typical Specifications are specifications met by the majority of the instrument under the stated operating conditions and are tested at 23 °C ambient temperature. Typical specifications are not warranted.

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

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    Caution  

    The protection provided by the PXI-2555 can be impaired if it is used in a manner not described in this document.

    Input Characteristics

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    Note  

    All input characteristics are DC, ACrms, or a combination unless otherwise specified.

    Maximum switching voltage

    30 V

    Maximum switching current (per channel)

    0.5 A

    Maximum carry current (per channel)

    0.5 A

    Maximum RF power

    10 W (channel to common), 1.5 W (termination)

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    Caution  

    The switching power is limited by the maximum switching current and the maximum voltage. Channel to common switching power must not exceed 10 W.

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    Caution  

    Terminations cannot withstand the full rated power of the PXI-2555.

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    Note  

    National Instruments recommends against switching active RF signals. As a relay actuates, the channel is momentarily unterminated. Some RF sources can be damaged by reflections if their outputs are not properly terminated. Refer to your RF source documentation for more information.

    Typical DC path resistance

    Initial

    < 0.35 Ω

    End-of-life

    ≥1.0 Ω

    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 rises rapidly above 1.0 Ω.

    RF Performance Characteristics

    Characteristic impedance (Z0)

    75 Ω nominal

    Values in parentheses are typical.

    Insertion loss

    ≤1 GHz

    <1.1 dB (<0.65 dB)

    ≤2 GHz

    <1.7 dB (<1.30 dB)

    ≤2.5 GHz

    <2.0 dB (<1.65 dB)

    Voltage standing wave ratio (VSWR)

    ≤1 GHz

    <1.3 dB (<1.2 dB)

    ≤2 GHz

    <1.65 dB (<1.35 dB)

    ≤2.5 GHz

    <1.75 dB (<1.5 dB)

    Typical isolation

    ≤1 GHz

    >49 dB

    ≤2 GHz

    >45 dB

    ≤2.5 GHz

    >43 dB

    Typical channel-to-channel skew

    <30 ps

    Typical propagation delay

    1.2 ns

    Typical rise time (10% to 90%)

    90 ps

    Figure 1. Typical Insertion Loss
    Figure 2. Typical Channel to Common VSWR
    Figure 3. Typical Termination VSWR
    Figure 4. Typical Isolation

    Termination Derating

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    Caution  

    When operating the PXI-2555 at ambient temperatures >25 °C, the derating in the following figure limits the maximum constant power each termination can dissipate.

    Figure 5. Termination Derating
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    Caution  

    Failure to operate below listed power limits can result in permanent damage to the module.

    Dynamic Characteristics

    Maximum relay operate time

    10.4 ms

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    Note  

    Certain applications may require additional time for proper settling. For information about including additional settling time, refer to the NI Switches Help.

    Maximum scan rate

    45 channels/s

    Expected relay life

    Mechanical

    1 × 106 cycles

    Electrical (30 V, 10 mA, DC resistive)

    3 × 105 cycles

    Trigger Characteristics

    Input trigger

    Sources

    PXI trigger lines 0 to 7

    Minimum pulse width

    150 ns

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    Note  

    The PXI-2555 can recognize trigger pulse widths less than 150 ns if you disable digital filtering. For information about disabling digital filtering, refer to the NI Switches Help.

    Output trigger

    Destinations

    PXI trigger lines 0 to 7

    Pulse width

    Programmable (1 μs to 62 μs)

    Physical Characteristics

    Relay type

    Electromechanical, latching

    I/O connectors

    5 mini-75 Ohm SMB jacks, gold plated

    PXI power requirement

    3.7 W at 5 V, 0.3 W at 3.3 V

    Dimensions (L × W × H)

    3U, one slot, PXI/cPCI module 21.6 × 2.0 × 13.0 cm (8.5 × 0.8 × 5.1 in.)

    Weight

    218 g (7.7 oz)

    Environment

    Operating temperature

    0 °C to 55 °C

    Storage temperature

    -20 °C to 70 °C

    Relative humidity

    5% to 85%, noncondensing

    Pollution Degree

    2

    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

    Operating

    5 Hz to 500 Hz, 0.3 grms

    Nonoperating

    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

    Safety

    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
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    Note  

    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
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    Note  

    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.

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    Note  

    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.

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    Note  

    For EMC declarations, 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 ni.com/certification, 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 ni.com/environment. 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)

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    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 ni.com/environment/weee.

    电子信息产品污染控制管理办法(中国RoHS)

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    中国客户  

    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 ni.com/environment/rohs_china。(For information about China RoHS compliance, go to ni.com/environment/rohs_china.)


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