PXI-2548 Specifications

PXI-2548 Specifications

These specifications apply to the PXI-2548 .

All specifications are subject to change without notice.

About These Specifications

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

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

Topology

Topology

Quad SPDT

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

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.
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.
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

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[1]1 The PXI-2548 recognizes trigger pulse widths less than 150 ns if digital filtering is disabled. Refer to the NI Switches Help for information about disabling digital filtering.

150 ns

Output trigger

Destinations

PXI trigger lines <0...7>

Default pulse width

2 µs, typical

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 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
Note For safety certifications, refer to the product label or the Product Certifications and Declarations 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
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.
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.
Note For EMC declarations, certifications, and additional information, refer to Product Certifications and Declarations.

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 ni.com/product-certifications, 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 Engineering a Healthy Planet 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.

EU and UK Customers

  • Waste Electrical and Electronic Equipment (WEEE)—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）

  • 中国RoHS— NI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NI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.)

    • 1 The PXI-2548 recognizes trigger pulse widths less than 150 ns if digital filtering is disabled. Refer to the NI Switches Help for information about disabling digital filtering.