PXI-6653

The National Instruments PXI-6653 is a timing and synchronization module for coordinating devices within and across PXI chassis. It combines an OCXO reference clock with programmable clock and trigger routing.

ManufacturerNational Instruments

ModelPXI-6653

Product TypeMultichassis PXI synchronization module

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PlatformPXI

FunctionMultichassis synchronization

Reference oscillatorOven-controlled crystal oscillator (OCXO)

Programmable front-panel interfacesSix bidirectional PFI connections

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Overview

Product overview

Key product information and technical features.

The PXI-6653 uses PXI reference-clock, trigger-bus and star-trigger resources to coordinate measurement devices. Its role is system timing rather than direct measurement acquisition.

Clock input and output connections provide access to external timing signals. Programmable routing connects front-panel signals with backplane timing resources.

OCXO-based reference-clock generation.
Direct digital synthesis (DDS) clock generation.
Programmable routing of PXI trigger and star-trigger signals.
Supports coordinated operation across multiple PXI chassis.

Verified specifications

Technical data

Verified product specifications.

Platform	PXI
Oscillator type	OCXO
Programmable function interfaces	6 bidirectional connections, PFI 0 through PFI 5
Clock output sources	OCXO, DDS or PXI_CLK10

Condition & included items