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National Instruments · PXI

PXI-6527

The National Instruments PXI-6527 is an isolated digital I/O module with 24 digital inputs and 24 digital outputs. NI identifies the device as providing channel-to-channel isolation.

ManufacturerNational Instruments

ModelPXI-6527

Part Number777802-01

Product TypeIsolated digital input/output module

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PlatformPXI

Digital inputs24

Digital outputs24

IsolationChannel-to-channel

Output implementationSolid-state relay switches

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Overview

Product overview

Key product information and technical features.

The PXI-6527 combines 24 input channels and 24 output channels in a PXI digital I/O module. Its channel-to-channel isolated architecture distinguishes it from non-isolated digital I/O devices.

The outputs operate as solid-state relay switches rather than independently powered TTL outputs. An NI applications engineer explains that an external source is required to produce an output voltage; this distinction is important when planning load wiring and power connections.

24 digital input channels and 24 digital output channels.
Channel-to-channel isolated digital I/O.
Solid-state relay outputs use a bidirectional switch arrangement.
NI's digital I/O accessory guide lists SH100M-100M Flex cabling and SCB-100A screw-terminal connectivity for the 6527 family.

Verified specifications

Technical data

Verified product specifications.

Digital input channels	24 channels
Digital output channels	24 channels
Isolation topology	Channel-to-channel

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National Instruments

Manufacturer

PXI

Module platform

PXI-6527

24-input, 24-output isolated digital I/O module

Software evidence

NI-DAQmx 8.5 lists the PXI-6527 among supported devices. This historical listing does not establish compatibility with every driver or operating-system version.

Plan output power and wiring for switched contacts, not self-powered TTL outputs; verify electrical limits before connecting loads.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI-DAQmx 8.5 Readme — Supported DevicesDriver Readme · download.ni.com

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650x/651x/652x Digital I/O Cable and Accessory Compatibility GuideCable And Accessory Compatibility Guide · ni.com

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NI Applications Engineer Explanation of PXI-6527 Output SwitchingTechnical resource

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

How many input and output channels does the PXI-6527 provide?

It provides 24 digital input channels and 24 digital output channels, with channel-to-channel isolation.

Do the outputs generate a 5 V TTL signal by themselves?

No. NI describes the outputs as solid-state relay switches. A voltage source and appropriate external circuit are needed to establish the switched output voltage.

Which cable and terminal block does NI list for the 6527?

NI's accessory guide lists the SH100M-100M Flex shielded cable and SCB-100A screw-terminal block for the 6527 family. Check the guide and the device pinout before wiring.