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NI (National Instruments) · PXI

PXIe-2527

The NI PXIe-2527, part number 780587-27, is a high-voltage multiplexer switch module with a PXI Express interface. It uses electromechanical relays and supports 1-wire, 2-wire, and 4-wire operation.

ManufacturerNI (National Instruments)

ModelPXIe-2527

Part Number780587-27

Product Type32‐Channel, 300 V, 2‐Wire PXI Multiplexer Switch Module

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Scan Rate140 cycles/s

Mode (n-wire)1-wire, 2-wire, 4-wire

Bus ConnectorPXI Express

Maximum Switching Current DC2 A

Maximum Switching Voltage DC300 V

Relay TypeElectromechanical

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Overview

Product overview

Key product information and technical features.

The PXIe-2527 is a multiplexer switch module for medium- to high-density automated test systems. Its PXI Express interface places it within the NI PXI ecosystem, while electromechanical relays provide the signal-switching paths.

Supported configurations include 64 × 1 in 1-wire mode, 32 × 1 in 2-wire mode, and 16 × 1 in 4-wire mode. Onboard relay counting and hardware-triggered operation support coordinated switching in automated test sequences.

Supports 1-wire, 2-wire, and 4-wire multiplexer configurations.
Provides 64 crosspoints with 16, 32, or 64 channels and one or two banks, depending on configuration.
Rated for maximum switching voltages of 300 V DC and 300 V AC, with a maximum DC switching current of 2 A.
Uses electromechanical relays and supports a scan rate of 140 cycles/s.
Provides onboard relay counting and hardware-triggered operation.

Verified specifications

Technical data

Verified product specifications.

Scan Rate	140 cycles/s
Mode (n-wire)	1-wire, 2-wire, 4-wire
Bus Connector	PXI Express
Maximum Switching Current DC	2 A
Maximum Switching Voltage DC	300 V
Relay Type	Electromechanical
Switch Bandwidth	30 MHz
Number of Channels	16, 32, 64
Number of Banks	1, 2
Supported Hardware Platform	PXI
Bus Connection	PXI Express
Crosspoints	64
Maximum Carry Current AC	2 A
Maximum Switching Voltage AC	300 V
Number of Columns	1
Number of Rows	64
Row Access	Yes
Termination	Yes
NI part numbers	780587-27

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NI

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PXI

Supported Hardware Platform

PXIe-2527

This product

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Letter Of Volatility (NI)Letter Of Volatility · ni.com

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Getting Started (NI)Getting Started · ni.com

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Specifications (NI)Specifications · ni.com

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User Manual (NI)User Manual · ni.com

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Dimensional Drawings (NI)Dimensional Drawings · ni.com

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Product Page (NI)Product Page · ni.com

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PXIe-2527 SpecificationsTechnical resource

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PXIe-2527 User ManualTechnical resource

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FAQ

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Product-specific answers based on available technical information.

What type of module is the PXIe-2527?

It is a multiplexer switch module with a PXI Express interface and electromechanical relays. Its nominal 2-wire configuration provides 32 channels.

Which wiring modes and channel configurations does it support?

It supports 1-wire, 2-wire, and 4-wire operation, including 64 × 1 1-wire, 32 × 1 2-wire, and 16 × 1 4-wire configurations.

What are its voltage and current ratings?

The retained specifications list maximum switching voltages of 300 V DC and 300 V AC, a maximum DC switching current of 2 A, and a maximum AC carry current of 2 A. Consult the NI specifications for operating conditions and limits; these maxima should not be assumed to apply simultaneously.

Does the PXIe-2527 use PXI or PXI Express?

The module belongs to the PXI hardware platform and uses a PXI Express bus connection. Confirm the intended chassis slot supports this interface before installation.