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National Instruments GPIB-140 Fiber-optic GPIB bus extender
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National Instruments · GPIB

GPIB-140

The National Instruments GPIB-140 is a fiber-optic GPIB extender with a specified reach of up to 1 km. This catalog record identifies the original GPIB-140, not the separately listed GPIB-140/2.

ManufacturerNational Instruments
ModelGPIB-140
Product TypeFiber-optic GPIB bus extender
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30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
FunctionGPIB bus extension
Extension mediumFiber optic
Maximum reachUp to 1 km
Compatibility limitCannot communicate with GPIB-140B extenders
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Overview

Product overview

Key product information and technical features.

NI identifies the GPIB-140 as a high-speed fiber-optic GPIB extender supporting distances up to 1 km. Its role is GPIB bus extension rather than conversion from a computer interface such as RS-232.

Extender model selection matters when maintaining an existing system. NI states that GPIB-140B cannot communicate with the original GPIB-140 because the devices use different fiber-optic communication protocols.

  • Extends GPIB connections using fiber-optic transmission.
  • Supports extension distances up to 1 km.
  • Identified by NI as a high-speed GPIB extender.
Verified specifications

Technical data

Verified product specifications.

Product functionGPIB bus extender
Transmission mediumFiber optic
Maximum extension distance1 km
Communication with GPIB-140BNot supported; different fiber-optic communication protocol
Condition & included items

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Condition

Confirmed per unit.

Included

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Revision

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Compatibility

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National Instruments

Manufacturer

GPIB

Instrumentation bus

GPIB-140

Fiber-optic bus extender

Compatibility

GPIB-140 cannot communicate with GPIB-140B extenders because their fiber-optic communication protocols differ.

Do not pair the original GPIB-140 with a GPIB-140B; NI documents incompatible fiber-optic protocols.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI Archived Product Listing — GPIB-140 Identification and ReachArchived Manufacturer Catalog PDF · ni.com
Open →
Compatibility Between NI GPIB-140B With Legacy NI GPIB Bus ExtenderManufacturer Compatibility Article · knowledge.ni.com
Open →
NI Legacy GPIB Extender Compatibility GuidanceTechnical resource
Open →
Shipping, warranty & returns

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Warranty
30-Day Warranty. Standard coverage applies.
Returns
30-Day Returns. Return policy applies.
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

What is the maximum reach of the GPIB-140?

NI lists the original GPIB-140 as a fiber-optic GPIB extender with reach up to 1 km.

Can a GPIB-140 communicate with a GPIB-140B?

No. NI states that GPIB-140B cannot communicate with GPIB-140 because they use different fiber-optic communication protocols.

Is the GPIB-140 the same model as the GPIB-140/2?

No. NI lists them separately: the GPIB-140 supports up to 1 km, while the GPIB-140/2 is listed for up to 2 km. This record is for GPIB-140.

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