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NI PXI-2548

2.7 GHz 50 Ω Quad SPDT (Insertion Loss <0.9 dB)

  • 50 Ω characteristic impedance
  • 2.7 GHz bandwidth
  • Insertion loss at 2.7 GHz <0.9 dB (typical <0.6 dB)
  • VSWR at 2.7 GHz <1.5 (typical <1.35)
  • Onboard relay counting
  • Use NI Switch Executive for calibrating losses on each PXI-2548 channel
  • Data Sheet  |   Configure System popup

View Diagram

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Step 1: Verify Device and Quantity Selection
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Description Est Ship Days Glossary Definition US Dollars
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778572-48 NI PXI-2548 -- For price, select country  

Each NI PXI-2548 requires: 12 Cables

NI PXI-2548 Cable
Step 2: Select Cable
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Shielded
763443-01 SMA100 Cable (15cm)
NI Recommended
-- For price, select country  
763444-01 SMA100 Cable (45cm) -- For price, select country  
Step 3: Select Optional Accessories
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Software
778546-09 NI Switch Executive Development System + 1 Yr SSP -- For price, select country  
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The National Instruments PXI-2548 is a general-purpose switch module that features four (quad) independent SPDT relays suited for routing signals from DC to 2.7 GHz in 50 Ω RF applications. It can switch up to 30 Vrms or 500 mA at a maximum power rating of 10 W. Use the NI PXI-2548 to add flexibility to your switch network or to maintain uniform signal paths across multiple channels when building high-channel-count multiplexers. The module also features excellent insertion loss, voltage standing-wave ratio (VSWR), and isolation parameters to minimize signal degradation; and its onboard relay-count-tracking feature can be used to predict relay lifetime and reduce unexpected system downtime.

Note: The bandwidth specification of a switch module, which is not an absolute specification, is determined by vendor standards. Although higher frequency signals can be routed through this switch module, they will encounter more degradation than those at lower frequencies. In order to determine the best switch module for your application, review the insertion loss, VSWR, and isolation specifications of the product for the bandwidth of your application. For more information on choosing the right RF switch for your application, review the ‘Guide to Selecting an RF Switch’ linked in the 'Resources' section of this page.

Specifications Documents


Specifications Summary

General 
Form FactorPXI
OS SupportWindows, Real-Time, Linux, Mac OS, Unix, Other
Switch TypeGeneral-Purpose Relay, RF
Relay TypeElectromechanical
ConnectivityCables
Product CertificationsC-Tick, CE, FCC Part 15, UL - Product Safety
Input Characteristics 
Number of Relays4 SPDT
Maximum Switching Voltage DC (Pollution Degree 2)30 VDC
Maximum Switching Voltage DC (Pollution Degree 1)30 VDC
Maximum Switching Voltage AC30 Vrms
Maximum Switching Current0.5 A
Maximum Carry Current0.5 A
Maximum Switching Power10 W
Bandwidth2.7 GHz
Relay Count TrackingYes
Voltage CategoryCAT I
Path Resistance (Typical)0.25 Ohm
Dynamic Characteristics 
VSWR (Typical)1.15 @ 1.5 GHz, 1.35 @ 2.7 GHz
Isolation (Typical)39 dB
Insertion Loss (Typical)0.6 dB
TerminatedNo
Characteristic Impedance50 Ohm
Mechanical Relay Life1000000 cycles
Scan Rate45 cycles/s
Timing/Triggering/Synchronization 
Synchronization Bus (RTSI)Yes
TriggeringAnalog
External ClockingNo
Physical Specifications 
Length16 cm
Width10 cm
Height2 cm
I/O ConnectorSMA female

Factory Installation

Reduce your setup time with National Instruments installation services and get a system you can use out of the box. Factory installation services include:

  • Installation of all individual hardware and software components as well as full testing to eliminate conflicts
  • Custom documentation plus a custom restore and startup utility
  • 2-year warranty and calibration coverage

This service is only available for PXI, CompactRIO, and Compact FieldPoint systems.

Extended Warranties

National Instruments designs and manufactures all products to minimize failures, but we know unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase covering any repair costs for up to three years.

  • Significant cost savings compared to individual repair incidents
  • Fault location, diagnostics, and repair by NI any time the system product fails
  • All parts and labor costs covered as well as any adjustments needed to bring the hardware back to manufacturing specifications

Calibration

NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. We provide manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many of our measurement products.

Training

NI training is the fastest, most certain route to productivity with NI tools and successful application development.

Repair Services

  • You can return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to bring the hardware back to manufacturing specifications.
  • Contact us to obtain a Return Material Authorization (RMA) form and shipping instructions
  • View your RMA support request status online
  • Register your product

Technical Support

www.ni.com/support