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NI PXI-2555

2.5 GHz 75 Ω Terminated 4x1 Mux (Insertion Loss <2.0 dB)

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  • 75 Ω characteristic impedance
  • 2.5 GHz bandwidth
  • Insertion loss at 2.5 GHz <2.0 dB (typical <1.6 dB)
  • VSWR at 2.5 GHz <1.75 (typical <1.5)
  • Onboard relay counting
  • Use NI Switch Executive for calibrating losses on each PXI-2555 channel
Data Sheet  |   Configure System popup

The National Instruments PXI-2555 is a 4x1 high-frequency terminated multiplexer switch module 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. The internal termination of the NI PXI-2555, which helps prevent high-power reflections that arise from open channels on the module, makes it ideal for use in video RF applications where such reflections can damage the source. The module also provides users with excellent insertion loss, voltage standing-wave ratio (VSWR), and isolation parameters to minimize signal degradation; you can use the onboard relay-count-tracking feature 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
778572-55 NI PXI-2555 Call $ 1,899.00

Each NI PXI-2555 requires: 5 Cables

NI PXI-2555 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		 Call $ 49.00
197211-01 Mini-75 Ohm SMB Plug to Mini-75 Ohm SMB Plug (1m) 10 - 15 $ 59.00
Step 3: Select Optional Accessories
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Software
778546-09 NI Switch Executive Development System + 1 Yr SSP 5 - 10 $ 1,199.00
Step 4: Add to Cart or Get a Quote

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Specifications Documents


Specifications Summary

General 
Form FactorPXI Platform
PXI Bus TypePXI Hybrid Compatible
OS SupportWindows, Real-Time, Linux, Mac OS
Switches 
Switch TypeMultiplexer, RF
Relay TypeElectromechanical
ConnectivityCables
Product CertificationsC-Tick, CE, FCC Part 15, UL - Product Safety
Multiplexer Configurations4x1, 1-wire
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
Bandwidth2.5 GHz
Relay Count TrackingYes
Voltage CategoryCAT I
Path Resistance (Typical)0.35 GOhm
VSWR (Typical)1.15 @ 1 GHz, 1.4 @ 2 GHz, 1.5 @ 2.5 GHz
Isolation (Typical)47 dB
Insertion Loss (Typical)1.6 dB
TerminatedYes
Characteristic Impedance75 Ohm
Mechanical Relay Life1000000 cycles
Scan Rate45 cycles/s
Timing/Triggering/Synchronization 
Synchronization Bus (RTSI)Yes
T-clock CapabilityNo
TriggeringAnalog
External ClockingYes

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