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How to Cut Fiber Optic Cable: A Step-by-Step Guide

Views: 10     Author: Site Editor     Publish Time: 2024-05-22      Origin: Site

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Fiber optic cable is a crucial component in the communication and data transmission industry. It transmits data through light pulses, making it a faster and more reliable option compared to traditional copper cables. 


However, there may be instances where cutting fiber optic cable is necessary, such as when repairing damaged or broken cables. In this article, we will discuss the proper techniques for cutting fiber optic cable.


How to Cut Fiber Optic Cable A Step-by-Step Guide


Before cutting fiber optic cable, it is essential to have a basic understanding of the cable itself. Fiber optic cables are made of thin strands of glass or plastic fibers that transmit data through light pulses. 


These fibers are protected by a jacket made of a material such as PVC or Kevlar. Cutting fiber optic cable requires specialized tools and techniques to avoid damaging the fibers and affecting data transmission.


To properly cut fiber optic cable, preparation is key. This involves gathering the necessary tools and equipment, stripping the jacket, and cleaning the fibers. Once the preparation is complete, the cutting and splicing techniques can be executed. Finally, post-cutting procedures and testing must be performed to ensure that the cable is functioning correctly. By following these steps, cutting fiber optic cable can be done safely and effectively.


Key Takeaways


  • 1. Understanding the basics of fiber optic cable is crucial before attempting to cut it.

  • 2. Proper preparation is essential to ensure that the cutting and splicing techniques are executed correctly.

  • 3. Post-cutting procedures and testing must be performed to ensure that the cable is functioning correctly.


Understanding Fiber Optic Cable



Fiber optic cable is a type of cable that is used to transmit data over long distances. It is made up of thin strands of glass or plastic that are used to transmit light signals. Fiber optic cables are used in a variety of applications, including telecommunications, medical equipment, and military equipment.


Types of Fiber Optic Cables


There are several different types of fiber optic cables, each with its own unique characteristics. The most common types of fiber optic cables include:

  • 1. OS2: This is a single-mode fiber optic cable that is used for long-distance applications. It has a small core diameter of 9 microns and can transmit data at speeds of up to 10 Gbps.

  • 2. OM1: This is a multimode fiber optic cable that is used for short-distance applications. It has a larger core diameter of 62.5 microns and can transmit data at speeds of up to 1 Gbps.

  • 3. OM2: This is also a multimode fiber optic cable that is used for short-distance applications. It has a smaller core diameter of 50 microns and can transmit data at speeds of up to 10 Gbps.

  • 4. OM3: This is a multimode fiber optic cable that is used for high-speed applications. It has a smaller core diameter of 50 microns and can transmit data at speeds of up to 40 Gbps.

  • 5. OM4: This is also a multimode fiber optic cable that is used for high-speed applications. It has a smaller core diameter of 50 microns and can transmit data at speeds of up to 100 Gbps.

  • 6. OM5: This is a multimode fiber optic cable that is used for high-speed applications. It has a smaller core diameter of 50 microns and can transmit data at speeds of up to 100 Gbps over longer distances than OM4.


Importance of Proper Handling


Fiber optic cables are delicate and can be easily damaged if they are not handled properly. It is important to use the correct tools and techniques when working with fiber optic cables to avoid damaging them.


When handling fiber optic cables, it is important to avoid bending or twisting them, as this can damage the fibers inside. It is also important to avoid exposing the cables to excessive heat or cold, as this can cause the fibers to expand or contract and break.


Proper handling of fiber optic cables is essential to ensure that they function properly and transmit data at the desired speeds. By following the correct procedures and using the right tools, it is possible to work with fiber optic cables safely and effectively.


Preparation for Cutting Fiber Optic Cable



Before cutting fiber optic cable, it is important to gather all the necessary tools and take safety precautions to prevent accidents.


Gathering Necessary Tools


The following tools are necessary for cutting fiber optic cable:

Tool Description
Fiber Optic Cutter Used for cutting fiber optic cable
Fiber Cleaver Used for cutting the bare fiber to an appropriate length
Fiber Optic Stripper Used for removing all armor, jacket, cladding, and coatings from the optical fiber
Cleaning Supplies Used for cleaning the bare fiber

It is important to ensure that all tools are in good working condition and are suitable for the type of fiber optic cable being cut.


Safety Precautions


When cutting fiber optic cable, it is important to take the following safety precautions:

  • 1. Wear safety glasses to protect the eyes from fiber shards.

  • 2. Use a dust mask to prevent inhalation of dust and fiber particles.

  • 3. Keep the work area clean and free of clutter to prevent tripping hazards.

  • 4. Use a fiber optic stripper to remove the outer sheath of the cable.

  • 5. Use a fiber cleaver to cut the fiber at the desired length.

  • 6. Clean the fiber with alcohol and lint-free wipes to remove any debris or contaminants.


By following these safety precautions, accidents can be prevented and the fiber optic cable can be cut safely and effectively.


Cutting and Splicing Techniques


A fiber optic cable being cut and spliced using precision tools and equipment in a controlled environment


Cutting and splicing fiber optic cables is a delicate process that requires precision and expertise. There are two primary techniques used for splicing fiber optic cables: mechanical splicing and fusion splicing.


Mechanical Splicing


Mechanical splicing involves joining two fiber optic cables together by aligning and mechanically fastening them. This process is typically used for quick-connect fiber-optic connectors


The process involves stripping the protective coating from the fiber optic cables, aligning the fibers, and securing them with a mechanical splice. The mechanical splice is then covered with a heat shrink tube to protect the splice from moisture and other environmental factors.


Fusion Splicing


Fusion splicing involves joining two fiber optic cables together by using an electric arc to melt the ends of the fibers together. The process involves stripping the protective coating from the fiber optic cables, aligning the fibers, and fusing them together using a fusion splicer. The splicer uses an electric arc to melt the ends of the fibers together, creating a permanent splice. The splice is then covered with a heat shrink tube to protect it from moisture and other environmental factors.


Both mechanical and fusion splicing techniques have their advantages and disadvantages. Mechanical splicing is a quicker and simpler process, but it can result in higher insertion loss and lower reliability. Fusion splicing, on the other hand, is a more complex and time-consuming process, but it results in lower insertion loss and higher reliability.


Regardless of the technique used, proper alignment of the fibers is critical to achieving a successful splice. It is important to use high-quality splicing equipment and to follow proper splicing procedures to ensure optimal splicing performance.


In conclusion, cutting and splicing fiber optic cables requires precision and expertise. Mechanical and fusion splicing are the two primary techniques used for splicing fiber optic cables. Proper alignment of the fibers is critical to achieving a successful splice. It is important to use high-quality splicing equipment and to follow proper splicing procedures to ensure optimal splicing performance.


Post-Cutting Procedures and Testing


A technician examines and tests a freshly cut fiber optic cable for accuracy and quality control


After cutting the fiber optic cable, it is important to perform post-cutting procedures and testing to ensure that the connection is properly established and there is no signal loss. This section will discuss two important post-cutting procedures: inspecting and testing the connection and troubleshooting common issues.


Inspecting and Testing the Connection


Inspecting and testing the connection is crucial to ensure that the fiber optic cable is properly cut and spliced. The optical time domain reflectometer (OTDR) is a useful tool for testing the fiber optic cable. It uses a laser to send a signal through the cable and measures the time it takes for the signal to reflect back. This helps to identify any issues with the cable, such as signal loss or attenuation.


To perform the OTDR test, connect the OTDR to one end of the fiber optic cable and turn it on. The OTDR will then send a signal through the cable and measure the time it takes for the signal to reflect back. The results of the test will be displayed on the OTDR screen, which will show the length of the cable, the signal strength, and any issues with the cable.


Troubleshooting Common Issues


If there are any issues with the fiber optic cable, such as signal loss or attenuation, it is important to troubleshoot and fix them. One common issue is a break in the cable, which can be caused by improper handling or installation. To fix a break in the cable, splice the two ends of the cable together using a fusion splicer or mechanical splicer.


Another common issue is excessive attenuation, which can be caused by a dirty connector or a damaged fiber. To fix this issue, clean the connector using a lint-free cloth and isopropyl alcohol, or replace the damaged fiber.


In conclusion, performing post-cutting procedures and testing is essential to ensure the reliability and performance of the fiber optic cable. By inspecting and testing the connection, and troubleshooting common issues, you can ensure that the cable is properly cut and spliced, and that there is no signal loss or attenuation.


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