Training: How to Test a Simplex Cable Assembly

by: FOCTV

TEST: Video Cable Assembly Spotlight on Fiber Testing

Published: October 11, 2020

, Last updated: September 17, 2025

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Fiber Optic Center training series - this video shows a simple overview of how to test a simplex cable assembly.

Steps in video:

Connect the master test jumper to the detector
Reference the power out to get a zero reference.
The 2 wavelengths selected are 1300-1550, which are typical for Singlemode testing.
Clean and inspect the MTJ and DOT end faces.
Use a mating adapter to connect the MTJ to the DOT.
Connect the far end of the DOT to the detector.
Press the start button.
Within seconds the software calculates the insertion loss and return loss results for each wavelength.
To test the other side of the DOT, flip the jumper and repeat the measurement on the other connector.

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About the Author

FOCTV Not all video is created equal. FOCTV provides the most innovative, high quality solutions with the best technical information within the photonics and nanotechnology world. FOCTV was developed to provide solutions for customers’ challenges and information on the highest quality fiber-optic equipment, supplies and entire fiber-optic cable assembly process.

About Fiber Optic Center, Inc.

Fiber Optic Center, Inc., (FOC), is an international leader in distributing fiber optic components, equipment, materials, and supplies known for helping customers make the best cable assemblies in the world for over three decades. Material property consultation is provided by technical experts for lapping film, epoxy, adhesives, optical coatings, and optical plastics during application specific material selection. Technical process expertise is offered in several key technology areas. Specialized expertise includes cable assembly line mastery, fiber broadband field installation best practices, and technical advancements in telecom, datacom, data centers, and hyperscale. Optical cable specification development includes design and quality testing. FOC's impact reaches the network physical capabilities through fiber manufacturing process expertise from preform fabrication and shaping, fiber drawing, and coating requirements for double clad fibers used for high power fiber laser applications to solution doping, vapor phase doping, rare earth chelates and halide recipe consultation. Fiber Optic Center is the preferred choice for the world’s fiber professionals as the industry connection to the most innovative optical products, technologies and technical experts who integrate their manufacturing knowledge and vast experience into customers' worldwide operations. @FiberOpticCntr

For further information contact:

Fiber Optic Center, Inc., 23 Centre Street, New Bedford, MA 02740-6322
Toll Free in US: 800-IS-FIBER or 800-473-4237 . Direct 508-992-6464. Email: sales@focenter.com or fiberopticcenter@focenter.com

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Kathleen Skelton, Director of Strategic Marketing, C: 617-803-3014 . E: kskelton@focenter.com

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