NI PXI-2546 2.7 GHz 50 Ω Dual 4x1 Mux (Insertion Loss <1.35 dB)

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  • 50 Ω characteristic impedance
  • 2.7 GHz bandwidth
  • Insertion loss at 2.7 GHz <1.35 dB (typical <1.05 dB)
  • VSWR at 2.7 GHz <1.7 (typical <1.5)
  • Onboard relay counting
  • Use NI Switch Executive for calibrating losses on each channel of the PXI-2546
  • Configure Complete PXI System
  • Data Sheet
  • View Support Resources
The NI PXI-2546 is a dual 4x1 high-frequency multiplexer switch module 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, with a maximum power rating of 10 W.

The multibank architecture of the PXI-2546 makes it ideal for test systems that require parallel operations such as RF stimulus-response testing. The module also provides excellent insertion loss, voltage standing-wave ratio (VSWR), and isolation parameters to minimize signal degradation. You can use its onboard relay count tracking feature to predict relay lifetime and reduce unexpected system downtime.

Note: The bandwidth specification of a switch module is not an absolute specification and is determined by vendor standards. Although you can route higher-frequency signals through this switch module, they encounter more degradation than those at lower frequencies. To determine the best switch module for your application, refer to the insertion loss, VSWR, and isolation specifications of the product for the bandwidth you need. For more information on choosing the right RF switch for your application, review the “Guide to Selecting an RF Switch” under the Resources tab of this page.

Data Sheet | View Pricing and Purchasing Information

Specifications Documents

  • Data Sheet

Specifications Summary

Product Family Switches
Form Factor PXI Platform
PXI Bus Type PXI Hybrid Compatible
Part Number 778572-46
Operating System/Target Real-Time , Windows
Triggering Digital
Synchronization Bus (RTSI) Yes
External Clocking Yes
Length 16 cm
Width 10 cm
Height 2 cm
I/O Connector SMA female
Power Requirement for +3.3V Rail 0.09 A
Power Requirement for +5V Rail 0.74 A
Slot Two Module No
Module Width 1
MXI Compatible Yes
Product Name PXI-2546
Switch Type Multiplexer , RF
Max Switching Voltage DC (Pollution Deg. 2) 30 VDC
Max Switching Voltage DC (Pollution Deg. 1) 30 VDC
Maximum Switching Voltage AC 30 Vrms
Max Switching Current 0.5 A
Maximum Carry Current 0.5 A
Maximum Switching Power 10 W
Bandwidth 2.7 GHz
Relay Type Electromechanical
Relay Count Tracking Yes
Voltage Category CAT I
Product Certifications C-Tick , FCC Part 15 , UL - Product Safety , CE
Path Resistance (Typical) 0.25 Ohm
Scan Rate 45 cycles/s
VSWR Ratio 1.3 , 1.25 , 1.5
VSWR Frequency 1.8 GHz , 1 GHz , 2.7 GHz
Isolation (Typical) 40 dB
Insertion Loss (Typical) 1.05 dB
Terminated No
Characteristic Impedance 50 Ohm
Multiplexer Config Wire Mode 1-wire
Multiplexer Config Banks 2

NI PXI-2546 (Multiplexer) Packages

To use the NI PXI-2546 (Multiplexer) , you need all items in the diagram below. Select Option 1 if you already own a PXI System, or Option 2 if you do not already own a chassis, controller, or software.

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PXI System

NI PXI-2546 (Multiplexer)




NI PXI-2546 (Multiplexer) - 778572-46 Qty $ 1,978 each
Optional Accessories
SMA-100 (38.1cm) - 763444-01
Select length:
Qty $ 87 each
SMA Plug (Female) to SMB Jack (Male) Adapter - 779674-01
Qty $ 65 each
Qty $ 168 each
Qty $ 31 each
Qty $ 1,270 each

Package Price: $ 2,065

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Additional Product Information

  • Data Sheet