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NI PXI-2559

2.5 GHz 75 Ω Dual Terminated SPDTs (Insertion Loss <1.7 dB)

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  • 75 Ω characteristic impedance
  • 2.5 GHz bandwidth
  • Insertion loss at 2.5 GHz <1.7 dB (typical <1.3 dB)
  • VSWR at 2.5 GHz <1.65 (typical <1.4)
  • Onboard relay counting
  • Use NI Switch Executive for calibrating losses on each PXI-2559 channel
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Data Sheet

The National Instruments PXI-2559 is a general-purpose switch module that features two independent terminated SPDT relays suited for routing signals from DC to 2.5 GHz in 75 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-2559 to add flexibility to your video switch network or to maintain uniform signal paths across multiple channels when building high-channel-count multiplexers to route high-frequency video signals. In addition to adding flexibility, the PXI-2559 uses 75 Ω termination resistors to minimize reflections on open channels and protect your source or device under test from damage. 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.

Data Sheet | View Pricing and Purchasing Information »

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Module Accessories   Chassis, Controllers, Modules Software & Services
Step 1: Verify Device and Quantity Selection
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
778572-59 NI PXI-2559 Call $ 1,699

Each NI PXI-2559 requires: 6 Cables

NI PXI-2559 Cable
Step 2: Select Cable
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Shielded
197211-0R3 Mini-75 Ohm SMB Plug to Mini-75 Ohm SMB Plug (0.3m)
NI Recommended		 12 - 20 $ 49
197211-01 Mini-75 Ohm SMB Plug to Mini-75 Ohm SMB Plug (1m) 12 - 20 $ 59
197210-0R3 Mini-75 Ohm SMB Plug to Type F Female, 0.3m Call $ 59
Step 3: Select Optional Accessories
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Other
780895-01 RF Torque Wrench Call $ 159
Software
778546-35 NI Switch Executive Development System + 1 Yr SSP 5 - 10 $ 959.20
Step 4: Add to Cart or Get a Quote

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Specifications Documents


Specifications Summary

General
Product Family Switches
Form Factor PXI Platform
PXI Bus Type PXI Hybrid Compatible
Operating System/Target Real-Time , Windows
Triggering Analog
Synchronization Bus (RTSI) Yes
External Clocking Yes
Length 16 cm
Width 10 cm
Height 2 cm
I/O Connector SMB 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-2559
Switches
Switch Type General-Purpose Relay , 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 2.5 GHz
Relay Type Electromechanical
Relay Count Tracking Yes
Voltage Category CAT I
Product Certifications C-Tick , CE , UL - Product Safety , FCC Part 15
Path Resistance (Typical) 0.35 Ohm
Number of Relays 2
Relay Form SPDT
Scan Rate 45 cycles/s
VSWR Ratio 1.2 , 1.2 , 1.2
VSWR Frequency 1 GHz , 2 GHz , 2.5 GHz
Isolation (Typical) 50 dB
Insertion Loss (Typical) 1.3 dB
Terminated Yes
Characteristic Impedance 75 Ohm

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