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NI (National Instruments) PXI-2548 2.7 GHz, 50 Ω, Quad SPDT PXI RF Relay Module
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NI (National Instruments) · PXI

PXI-2548

The NI PXI-2548, part number 778572-48, is a 2.7 GHz, 50 Ω quad SPDT PXI RF relay module. It provides four banks of electromechanical switching.

ManufacturerNI (National Instruments)
ModelPXI-2548
Part Number778572-48
Product Type2.7 GHz, 50 Ω, Quad SPDT PXI RF Relay Module
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Number of Banks4
Scan Rate45 cycles/s
Bus ConnectionPXI Hybrid
Maximum Carry Current AC0.5 A
Maximum Switching Voltage AC30 V
Relay ConfigurationSPDT
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Overview

Product overview

Key product information and technical features.

The PXI-2548 is a PXI RF switch module with four single-pole double-throw electromechanical relays arranged in four banks. Its specified switch bandwidth is 2.7 GHz, with a characteristic impedance of 50 Ω.

The module uses a PXI Hybrid bus connection and has no internal termination. Its switching limits and RF performance should be checked against the NI specifications when planning signal paths.

  • Four SPDT electromechanical relays in four banks.
  • 2.7 GHz switch bandwidth and 50 Ω characteristic impedance.
  • Specified scan rate of 45 cycles/s.
  • Maximum AC and DC switching voltage of 30 V; maximum DC switching current of 0.5 A.
  • Unterminated switching paths with row access.
Verified specifications

Technical data

Verified product specifications.

Number of Banks4
Scan Rate45 cycles/s
Bus ConnectionPXI Hybrid
Maximum Carry Current AC0.5 A
Maximum Switching Voltage AC30 V
Relay ConfigurationSPDT
Relay TypeElectromechanical
Switch Bandwidth2.7 GHz
Characteristic Impedence50 Ohm
TerminationNo
Supported Hardware PlatformPXI
Max Insertion Loss-0.65 dB
Maximum Switching Current DC0.5 A
Maximum Switching Voltage DC30 V
Mode (n-wire)1-wire
Number of Channels2
Number of Columns1
Number of Relays4
Number of Rows2
Row AccessYes
NI part numbers778572-48
Condition & included items

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NI

Manufacturer

PXI

Supported Hardware Platform

PXI-2548

This product

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Manuals & software

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Letter Of Volatility (NI)Letter Of Volatility · ni.com
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Specifications (NI)Specifications · ni.com
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Getting Started (NI)Getting Started · ni.com
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Dimensional Drawings (NI)Dimensional Drawings · ni.com
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Product Page (NI)Product Page · ni.com
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Shipping, warranty & returns

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

What switching topology does the PXI-2548 provide?

It provides four SPDT (single-pole double-throw) electromechanical relays arranged in four banks.

What are the bandwidth and impedance?

The specified switch bandwidth is 2.7 GHz, and the characteristic impedance is 50 Ω.

Does the PXI-2548 include termination?

No. The supplied verified specifications identify the module as unterminated.

What platform and bus connection does it use?

The PXI-2548 belongs to the PXI platform and is listed with a PXI Hybrid bus connection. Confirm the intended chassis and software configuration before integration.

Which NI part number is associated with this model?

The supplied structured product record identifies NI part number 778572-48 for the PXI-2548.

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