how to terminate fiber optic network cable

how to terminate fiber optic network cable

Table of Contents

Welcome to this blog where I will introduce you to the basics of fiber optic network cable termination, tools and materials required, termination steps, considerations, and testing and verification methods. Understanding the process and key points of terminating fiber optic network cables will help you perform the correct operation and ensure the quality and stability of your fiber optic connection.

I. Basics of Fiber Optic Network Cable Termination

Fiber optic network cable termination is the process of connecting fiber optic cables to optical devices or connectors in a fiber optic network. Here are the relevant basics:

1. Basic structure and composition of optical fiber network cable:

  • Optical fiber core: The core part of the optical fiber network cable, the optical fiber responsible for transmitting optical signals.

  • Coating: A coating wrapped around the core of an optical fiber to provide protection and support to prevent damage to the fiber.

  • Outer sheath: A protective layer wrapped around the entire cable to prevent water, moisture, and physical damage.

2. How fiber optic network cables work:

  • Principle of total reflection: Optical fiber network cables use the total reflection characteristics of light in the fiber core to transmit signals. The optical signal continuously passes through total reflection in the fiber core, thereby realizing signal transmission.

  • Single-mode vs. multi-mode: Fiber optic network cables can be single-mode or multi-mode, and the choice depends on the specific application scenario and needs.

The accuracy and quality of fiber optic network cable termination directly affects the transmission effect of optical signals and network performance, so special attention to details and operating specifications is required during the termination process.

II. Required Tools and Materials

Terminating fiber optic network cables requires the use of a range of specialized tools and materials to ensure connection quality and stability. Here is a list of tools and materials needed:

Tool list:

  1. Fiber Optic Stripper: Used to remove the outer protective layer of fiber optic cables to expose the fiber core and cladding.

  2. Fiber cutter: Used to cut optical fibers accurately to ensure the smoothness of the fiber section and the transmission quality of optical signals.

  3. Optical fiber fusion splicer: used to fuse fiber optic connectors with optical fibers to ensure a stable connection and good optical signal transmission.

  4. Splicing kit: Includes consumables required for the fusion splicer, such as fiber optic splicers, cleaning rods, etc.

  5. Optical fiber detector: used to detect the quality and loss of optical fiber connections to ensure that the connection quality meets the requirements.

Material list:

  1. Fiber optic connector: used to connect two optical fibers to transmit optical signals.

  2. Fiber optic cleaning rod: used to clean the residue on the fiber connection part to ensure the connection quality.

  3. Fiber optic sheath: Used to protect the optical fiber connection part from external interference and damage.

  4. Fiber optic connector cover: Used to cover the fiber optic connector to protect the connection part from contamination and damage.

The above tools and materials are essential when terminating fiber optic network cables. Using the correct tools and materials can improve work efficiency and connection quality, and ensure the stability and reliability of optical signal transmission.

III. Steps to Terminate Fiber Optic Network Cables

Terminating fiber optic network cables is a careful job. Here are the general steps for terminating fiber optic network cables:

  1. Preparation:

    • Make sure the work area is clean, dry, and away from equipment that may cause static electricity.
    • Prepare the required tools and materials, including fiber strippers, fiber cutters, fiber fusion splicers, etc.
  2. Clean fiber:

    • Use the optical fiber cleaning rod to clean the optical fiber to ensure that the surface of the optical fiber is clean and free of dirt.
  3. Strip the optical fiber protective layer:

    • Use a fiber optic stripper to peel off the outer protective layer of the fiber optic cable until the fiber core and cladding are exposed.
  4. Cleaving fiber:

    • Use a fiber cleaver to cut the fiber, making sure the cut is flat and smooth.
  5. Clean the fiber end:

    • Use a fiber optic cleaning rod to thoroughly clean the fiber end to ensure the surface is clean and free of dirt.
  6. Splicing fiber:

    • Insert the optical fiber connector into the fusion splicer, operate according to the machine instructions, and splice the optical fiber.
  7. Check connection quality:

    • Use an optical fiber detector to check the connection quality and loss to ensure that the connection quality meets the requirements.
  8. Protect the connection part:

    • Use an optical fiber jacket to cover the connection part to protect the optical fiber connection from external interference and damage.
  9. Test connection:

    • Conduct a connection test to verify the stability and reliability of the connection and ensure the transmission effect of the optical signal.

After completing the above steps, the fiber optic network cable was successfully terminated. Note, be careful when performing each step to ensure connection quality and work safety.

IV. Things to note during termination

In the process of terminating fiber optic network cables, there are some key considerations and safety issues that users need to pay special attention to:

  1. Keep it clean: Before terminating, make sure the work area is clean and tidy to prevent dust and debris from entering the fiber optic connection.

  2. Handle optical fiber with care: Optical fiber is very fragile and needs to be handled carefully to avoid bending or pulling to avoid breakage.

  3. Use tools correctly: Use the correct tools and follow the instructions to ensure their correct use and safety.

  4. Precise cutting: When cutting optical fiber, make sure the cut is smooth to avoid fiber breakage or uneven cuts resulting in poor connection quality.

  5. Avoid contamination: During the termination process, avoid touching the fiber connection part to avoid contaminating the fiber surface and affecting the connection quality.

  6. Avoid excessive splicing: The temperature and time of the fusion splicer should be controlled during splicing to avoid damage to the optical fiber connection caused by excessive splicing.

  7. Be careful to protect your eyesight: When using the fusion splicer, you should protect your eyes to avoid damage to your eyesight caused by the strong light generated by optical fiber discharge.

  8. Regular cleaning and maintenance: After the termination is completed, clean the optical fiber connection part regularly to keep it clean and ensure the stability of the connection quality.

Following the above precautions and safety regulations can effectively avoid possible problems during the termination process and ensure the connection quality and stability of optical fiber network cables.

V. Termination of post-completion testing and verification

After terminating fiber optic network cables, testing and verification is required to ensure connection quality and stability. The following are some commonly used testing methods and equipment:

  1. Optical power test: Use an optical power meter to measure the output power of the optical signal to ensure that the signal strength is within the normal range and that the signal will not attenuate excessively due to connection problems.

  2. Connectivity test: Use a fiber optic connectivity tester to verify whether the fiber optic connection is successfully established and ensure that data can be transmitted correctly between fibers.

  3. Attenuation test: Use a fiber attenuation tester to measure the attenuation value at the fiber connection to determine whether the connection is normal and whether the signal attenuation is within a reasonable range.

  4. End-to-end testing: Verify the end-to-end communication quality of a fiber optic connection from the sending end to the receiving end by sending specific test signals.

  5. Eye diagram test: Use an eye diagram meter to test the eye diagram of the optical signal to evaluate the quality and stability of the signal.

  6. OTDR test: Use an optical time domain reflectometer (OTDR) to measure the reflection and attenuation at the fiber connection to locate potential connection problems and faults.

During the testing and verification process, appropriate testing methods and equipment must be selected according to specific needs and circumstances, and operations must be strictly followed to ensure the accuracy and reliability of test results.


Thank you for reading this blog and learning about fiber optic network cable termination. I hope this blog can help you understand the basics of fiber optic network cable termination and provide correct operation guidelines. Selecting the appropriate tools and materials, following the steps and precautions for termination, and testing and verifying the quality of the connection will provide you with a stable and efficient fiber optic network connection. Choose reliable products and equipment to ensure high speed and stability of optical fiber transmission.

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