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National Instruments · USB

USB-6255 OEM

Name: USB-6255 OEM
Brand: National Instruments

The NI USB-6255 OEM is a board-only M Series USB data acquisition device for OEM integration. It combines 80 analog inputs, two analog outputs and 24 digital I/O lines.

ManufacturerNational Instruments

ModelUSB-6255 OEM

Part Number197201-01

Product TypeBoard-only multifunction data acquisition device

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Analog inputs80 single-ended or 40 differential; 16-bit

Maximum AI rate1.25 MS/s single-channel; 750 kS/s multichannel aggregate

Analog outputs2 channels

Digital I/O24 lines

Form factorOEM board-only, without enclosure

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Overview

Product overview

Key product information and technical features.

The USB-6255 OEM provides multifunction acquisition in a board-only format rather than an enclosed USB instrument. NI identifies part number 197201-01 as the OEM board-only version.

The analog inputs support single-ended or differential measurements. The 1.25 MS/s maximum applies to single-channel acquisition; multichannel acquisition is limited to 750 kS/s aggregate, not per channel.

For mechanical and electrical integration, NI provides an OEM-specific guide covering dimensions, pinouts, connectors, switches, LEDs and chassis ground. Use this guide rather than assuming the enclosed USB-6255 connection scheme applies.

16-bit analog acquisition with up to 80 single-ended or 40 differential inputs.
Two analog outputs and 24 digital I/O lines alongside the analog inputs.
Two 32-bit counters/timers and analog and digital triggering.
OEM-specific pinout documentation and part-number-specific mechanical drawings.

Verified specifications

Technical data

Verified product specifications.

Host interface	USB 2.0
Single-ended analog inputs	80 channels
Differential analog inputs	40 channels
Analog input resolution	16 bits
Maximum single-channel AI sample rate	1.25 MS/s
Maximum multichannel aggregate AI sample rate	750 kS/s
Simultaneous analog input sampling	No
Analog outputs	2 channels
Analog output resolution	16 bits
Maximum analog output update rate	2.86 MS/s
Digital I/O	24 lines
Counters/timers	2 × 32-bit

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National Instruments

Manufacturer

USB M Series

Multifunction DAQ family and host interface

USB-6255 OEM

Board-only integration variant

Integration reference

USB-622x/625x/628x OEM User Guide

Use the OEM pinout and mechanical documentation; enclosed USB-6255 accessory tables do not establish OEM wiring compatibility.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

USB-6255 Product Page and Variant SpecificationsProduct Page · ni.com

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USB-622x/625x/628x OEM User GuideOEM User Guide · ni.com

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USB-6255 Dimensional Drawings and CAD ModelsMechanical Drawings · ni.com

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High-Speed M Series Multifunction DAQ for USBFamily Datasheet · ni.com

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OEM Pinouts and Integration GuideTechnical resource

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197201-01 Drawing and CAD DownloadsTechnical resource

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FAQ

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Product-specific answers based on available technical information.

Which part number identifies the USB-6255 OEM?

NI lists 197201-01 as the USB-6255 OEM board-only kit, distinct from enclosed screw-terminal and mass-termination versions.

Does every input sample at 1.25 MS/s?

No. The maximum is 1.25 MS/s for single-channel acquisition and 750 kS/s aggregate for multichannel acquisition. The inputs are not simultaneously sampled.

Where are the OEM pinouts and mounting information?

The USB-622x/625x/628x OEM User Guide covers pinouts and dimensions. NI also provides separate drawings and CAD models for part number 197201-01.