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PXI-2548 Specifications

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    Last Modified: April 24, 2017

    This document lists specifications for the PXI-2548 (PXI-2548) relay module. All specifications are subject to change without notice. Visit ni.com/manuals for the most current specifications.

    About These Specifications

    Specifications characterize the warranted performance of the instrument under the stated operating conditions. Data in this document are Specifications unless otherwise noted.

    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.

    Topology

    Quad SPDT

    Refer to the NI Switches Help at ni.com/manuals for detailed topology information.

    spd-note-caution
    Caution  

    The protection provided by the PXI-2548 can be impaired if it is used in a manner not described in this document.

    Input Characteristics

    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

    Minimum switch load

    0 dBm
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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.

    spd-note-note
    Note  

    NI 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.

    spd-note-note
    Note  

    Switching active RF signals below 0 dBm may degrade signal integrity and decrease relay life. For more information about switching active RF signals, visit ni.com/info and enter Info Code RFSwitching.

    DC path resistance

    Initial

    <0.25 Ω, typical

    End-of-life

    ≥1.0 Ω, typical

    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)

    50 Ω, nominal

    Insertion loss

    ≤1.5 GHz

    <0.7 dB (<0.5 dB), typical

    ≤2.7 GHz

    <1.0 dB (<0.65 dB), typical
    Voltage standing wave ratio (VSWR)

    ≤1.5 GHz

    <1.4 (<1.25, typical)

    ≤2.7 GHz

    <1.7 (<1.25, typical)
    Isolation

    ≤1.5 GHz

    >58 dB, typical

    ≤2.7 GHz

    >39 dB, typical
    Crosstalk

    ≤1.5 GHz

    <-60 dB, typical

    ≤2.7 GHz

    <-45 dB, typical

    Channel-to-channel skew

    <15 ps, typical

    Propagation delay

    710 ps, typical

    Rise time (10% to 90%)

    55 ps, typical

    Refer to the following figures for typical insertion loss, typical VSWR, and typical isolation.

    Figure 1. Insertion Loss, Typical
    Figure 2. VSWR, Typical
    Figure 3. Isolation, Typical

    Dynamic Characteristics

    Maximum relay operate time

    10.4 ms
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    Note  

    Certain applications may require additional time for proper settling. Refer to the NI Switches Help at ni.com/manuals for more information about including additional settling time.

    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...7>

    Minimum pulse width

    150 ns
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    Note  

    The PXI-2548 can recognize trigger pulse widths less than 150 ns if you disable digital filtering. Refer to the NI Switches Help at ni.com/manuals for information about disabling digital filtering.

    Output trigger

    Destinations

    PXI trigger lines <0...7>

    Pulse width

    Programmable (1 µs to 62 µs)

    Physical Characteristics

    Relay type

    Electromechanical, latching

    I/O connectors

    12 SMA 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 cm × 2.0 cm × 13.0 cm (8.5 in. × 0.8 in. × 5.1 in.)

    Weight

    255 g (9 oz)

    Environment

    Maximum altitude

    2,000 m (at 25 °C ambient temperature)

    Pollution Degree

    2

    Indoor use only.

    Operating Environment

    Ambient temperature range

    0 °C to 55 °C (Tested in accordance with IEC 60068-2-1 and IEC 60068-2-2.)

    Relative humidity range

    10% to 90%, noncondensing (Tested in accordance with IEC 60068-2-56.)

    Storage Environment

    Ambient temperature range

    -20 °C to 70 °C (Tested in accordance with IEC 60068-2-1 and IEC 60068-2-2.)

    Relative humidity range

    5% to 95%, noncondensing (Tested in accordance with IEC 60068-2-56.)

    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, 0.31 grms (Tested in accordance with IEC 60068-2-64.)

    Nonoperating

    5 Hz to 500 Hz, 2.46 grms (Tested in accordance with IEC 60068-2-64. 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
    • AS/NZS CISPR 11: Group 1, Class A emissions
    • FCC 47 CFR Part 15B: Class A emissions
    • ICES-001: Class A emissions
    spd-note-note
    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.

    spd-note-note
    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 and certifications, 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)
    spd-note-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 ni.com/environment/weee.

    电子信息产品污染控制管理办法（中国RoHS）
    spd-note-china-rohs
    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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