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National Instruments · PXI

PXI-6652

The National Instruments PXI-6652 is a TCXO-based PXI timing and synchronization module. It supports clock and trigger distribution for coordinated measurement systems.

ManufacturerNational Instruments

ModelPXI-6652

Part Number778726-01

Product TypeTiming and synchronization module

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PlatformPXI

Onboard oscillatorTCXO

Manufacturer part number778726-01

Front-panel signal connectorsSMB for clock and trigger connections

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Overview

Product overview

Key product information and technical features.

The PXI-6652 provides timing coordination through PXI reference-clock and trigger resources. It fits systems that require multiple instruments to operate with shared timing.

NI documents the module for multi-chassis dynamic signal acquisition, where front-panel connections carry timing signals between chassis. Backplane capabilities include overriding PXI_CLK10 and phase locking to CLK10.

TCXO-based onboard clock.
Internal clock and trigger generation, plus routing of externally generated timing signals.
PXI_CLK10 backplane clock override.
Phase-lock-loop capability to the PXI CLK10 signal.

Verified specifications

Technical data

Verified product specifications.

Bus connector	PXI
Onboard clock type	TCXO
Backplane clock override	Supported: PXI_CLK10
Phase locking to CLK10	Supported

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Compatibility

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National Instruments

Manufacturer

PXI

Modular instrumentation platform

PXI-6652

TCXO timing and synchronization module

Backplane functions

CLK10 override and phase locking

Confirm chassis timing-slot requirements and driver-version support before integration.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI PXI-6652 Product PageOfficial Product Page · ni.com

Open →

How Do NI PXI Boards Map to the PXI Backplane?Technical Support Article · ni.com

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Archived: Synchronizing NI PXI-44xx DSA Devices across Multiple PXI ChassisArchived Application Support Article · knowledge.ni.com

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PXI Backplane Clock and Trigger Function MappingTechnical resource

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

How does the PXI-6652 differ from the PXI-6653?

The PXI-6652 uses a TCXO, while the PXI-6653 uses an oven-controlled crystal oscillator (OCXO). They are distinct models, not interchangeable catalog identities.

Can the PXI-6652 synchronize measurements across chassis?

Yes. NI documents it for sharing clocks and triggers across PXI chassis. The required modules, cabling, and routing depend on the measurement configuration.

Can it override the PXI backplane reference clock?

Yes. NI lists the PXI-6652 as supporting CLK10 override and phase locking to CLK10.