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NI (National Instruments) · PXI

PXI-2566

The NI PXI-2566 is a 16-channel SPDT PXI relay module with electromechanical relays and a maximum DC switching current of 2 A. It features a PXI Hybrid bus connection and a scan rate of 115 cycles/s.

ManufacturerNI (National Instruments)

ModelPXI-2566

Part Number778572-66 · 778573-66

Product Type16-Channel, 2 A, SPDT PXI Relay Module

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Scan Rate115 cycles/s

Bus ConnectionPXI Hybrid

Maximum Switching Current DC2 A

Relay ConfigurationSPDT

Switch Bandwidth70 MHz

Number of Relays16

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Overview

Product overview

Key product information and technical features.

The PXI-2566 is a general-purpose switch module with independent SPDT Form C armature relays. Each relay channel provides normally closed (NC), normally open (NO), and common (COM) terminals.

The module is designed for switching, routing, and controlling high-current signals. Its nonlatching relays provide low on-resistance and low thermal offsets.

16 electromechanical SPDT relays with row access.
Maximum DC switching current of 2 A.
70 MHz switch bandwidth and 115 cycles/s scan rate.
Maximum AC carry current of 5 A and maximum AC switching voltage of 125 V.
PXI Hybrid bus connection for the PXI hardware platform.

Verified specifications

Technical data

Verified product specifications.

Scan Rate	115 cycles/s
Bus Connection	PXI Hybrid
Maximum Switching Current DC	2 A
Relay Configuration	SPDT
Switch Bandwidth	70 MHz
Number of Relays	16
Supported Hardware Platform	PXI
Maximum Carry Current AC	5 A
Maximum Switching Voltage AC	125 V
Number of Channels	16
Relay Type	Electromechanical
Row Access	Yes
NI part numbers	778572-66, 778573-66

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NI

Manufacturer

PXI

Supported Hardware Platform

PXI-2566

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

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Specifications (NI)Specifications · ni.com

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Getting Started (NI)Getting Started · 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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FAQ

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Product-specific answers based on available technical information.

What relay configuration does the PXI-2566 use?

It uses independent SPDT Form C armature relays. Each channel has normally closed (NC), normally open (NO), and common (COM) terminals.

How many channels and relays does the module have?

The PXI-2566 has 16 channels and 16 electromechanical relays.

What are the switching and carry ratings?

The maximum DC switching current is 2 A. The maximum AC carry current is 5 A, and the maximum AC switching voltage is 125 V. Carry current is not the same as switching current; consult the NI specifications for operating limits.

What part numbers are listed for the PXI-2566?

The existing verified catalog data lists NI part numbers 778572-66 and 778573-66.