26.5 GHz Multiplexers, SPDT Relays, and Transfer Switches

• 26.5 GHz bandwidth

electromechanical relays

• 50

• Onboard relay counting

• Fully software programmable

• Configurations

• PXI-2596 – dual 6x1 unterminated

multiplexer (SP6T)

• PXI-2597 – 6x1 terminated

multiplexer (SP6T)

• PXI-2598 – dual transfer switch

• PXI-2599 – dual SPDT

(Form C) relays

• Modules designed using microwave

relays from Radiall

Operating Systems

• Windows 2000/NT/XP

Recommended Software

• NI Switch Executive

• LabVIEW

• LabWindows/CVI

• Measurement Studio

Other Compatible Software

• Visual Basic

• C/C++

Driver/Services Software

(included)

• NI-SWITCH

• NI-DAQmx

NI PXI-2596, NI PXI-2597, NI PXI-2598, NI PXI-2599

Overview and Applications

The National Instruments PXI-2596, PXI-2597, PXI-2598, and PXI-2599

multiplexers, SPDT relays, and transfer switch modules route RF or

microwave signals in automated test applications. While designed to

operate with less than 1 dB insertion loss up to 26.5 GHz, they appear

almost invisible to signals at much lower frequencies as well. Use the

NI PXI-2597 terminated multiplexer when high-power signal reflections are

a concern and 50

higher-density, unterminated option with dual 6x1 multiplexer banks in the

same module. The PXI-2598 and PXI-2599 operate as transfer switches and

SPDT relays, respectively, for basic signal routing or inserting and

removing components in a signal path. These modules are also well-suited

for passing high-order harmonics from RF upconverters such as the

NI PXI-5670 2.7 GHz RF vector signal generator or routing multiple sources to

RF downconverters such as the NI PXI-5660 2.7 GHz RF vector signal analyzer.

Relay Count Tracking

The switches count relay closures on each of their individual relays.

Relay counts are incremented each time a relay is actuated. You can

programmatically retrieve the counts, stored on board the modules, and use

them for predictive maintenance to reduce unexpected system downtime.

Signal Connectivity Options

The PXI-2596, PXI-2597, PXI-2598, and PXI-2599 all use standard SMA

connectors for signal connections. National Instruments offers two semirigid

SMA cables (0.15 and 0.45 cm) that are acceptable for many RF/microwave

signals. There are also many custom cable vendors on the market that can

meet your exact cable length, performance, and connector requirements.

Software

All National Instruments PXI switch modules are shipped with NI-SWITCH,

an IVI-compliant driver offering complete functionality for all switch

modules. For additional assistance in configuring, programming, and

managing higher-channel-count switching systems, NI Switch Executive

software offers an easy-to-use, intelligent switch management and visual

routing environment. With the latest version of NI Switch Executive, you

can store calibration information for your RF/microwave switch routes on a

per-path basis. Use the NI-SWITCH Soft Front Panel for simple relay

operations or debugging switch code/execution.

Ordering Information

NI PXI-2596............................................................................778572-96

NI PXI-2597............................................................................778572-97

NI PXI-2598............................................................................778572-98

NI PXI-2599............................................................................778572-99

Includes NI-SWITCH and NI-DAQmx driver software.

Accessories

SMA male-male cable (semirigid)

0.15 cm..........................................................................…763443-01

0.45 cm ..............................................................................763444-01

NI Switch Executive

Development system ........................................................778546-01

Deployment engine ..........................................................778548-00

BUY NOW!

For complete product specifications, pricing, and accessory information,

call (800) 813 3693 (U.S.) or go to ni.com/switches.