Easy Guide: Making an ST-ST Fiber Optic Cable

Table of Contents

1. Introduction
2. What is an SC Connector?
3. How to Select the Right Fiber Optic Cable
4. Terminating a Fiber Optic Cable with an SC Connector
   • 4.1 Step 1: Preparing the Cable
   • 4.2 Step 2: Stripping the Cable
   • 4.3 Step 3: Cutting the Cable
   • 4.4 Step 4: Pre-fitting the Connector
   • 4.5 Step 5: Gluing the Connector
   • 4.6 Step 6: Cleaving the Cable
   • 4.7 Step 7: Polishing the Connector
5. Testing the Fiber Optic Cable
6. Conclusion

Terminating a Fiber Optic Cable with an SC Connector

Fiber optic cables are widely used in various industries for high-speed data transmission. These cables are terminated with connectors to ensure a secure and reliable connection. One commonly used connector is the SC (Subscriber Connector) connector, which is designed for easy installation and removal. In this article, we will walk through the process of terminating a fiber optic cable with an SC connector.

Step 1: Preparing the Cable

Before starting the termination process, it is crucial to select the right fiber optic cable for the job. The cable should be compatible with the SC connector and meet the required specifications for the application. Once the cable is selected, the first step is to prepare the cable by using a crimper to secure a knot near the end of the cable. This knot is used to prevent the Aramis, which is located inside the cable, from being pulled back during the termination process. After securing the knot, the outer casing of the cable needs to be stripped back.

Step 2: Stripping the Cable

To strip the cable, the outer casing is carefully removed using a cable stripper. The goal is to expose the cladding, buffer, and Aramis inside the cable. The cladding is a protective layer that surrounds the fiber, while the buffer provides additional protection and support. The Aramis is a strength member that is used to secure the fiber inside the cable. It is essential to strip the cable back to the correct length, leaving approximately six millimeters of buffer exposed.

Step 3: Cutting the Cable

After stripping the cable, the next step is to cut off the Aramis, leaving about one to two centimeters of fiber exposed. This exposed fiber will be terminated with the SC connector. Care should be taken not to damage or scratch the fiber during this process. Once the fiber is exposed, the SC connector is slid onto the fiber, ensuring that the boot is also slid down onto the jacket of the cable.

Step 4: Pre-fitting the Connector

Before permanently attaching the SC connector, it is essential to do a pre-fit to ensure proper alignment and positioning. The connector should be slid down to the correct length, leaving about a quarter centimeter of fiber hanging out from the end of the connector. This pre-fit allows for adjustments if needed before moving on to the next step.

Step 5: Gluing the Connector

Once the pre-fit is satisfactory, the SC connector is ready to be permanently attached to the fiber. Before applying the glue, the connector and fiber should be cleaned using alcohol wipes to remove any dirt or debris. A small amount of glue, typically two drops, is applied to the connector, and it is then slid over the fiber. The connector is pushed all the way down, ensuring that the fiber is securely held in place. Excess glue should be wiped off, and the connector should be allowed to dry.

Step 6: Cleaving the Cable

Cleaving the cable is a critical step in the termination process. It involves cutting the fiber with precision to ensure a clean and smooth end face. This is done using a cleaver, which is a specialized tool designed for fiber optic termination. The fiber is cleaved by applying light pressure to Create a controlled fracture. The cleaved fiber should be placed on a clean pad and protected to prevent any damage.

Step 7: Polishing the Connector

After cleaving the fiber, it is necessary to polish the connector to achieve low insertion loss and reflectance. This is done using polishing films or pads of various grits. The connector is placed on the polishing film and moved in a circular motion to remove any imperfections and create a smooth surface. The polishing process is typically done in multiple steps, starting with a coarse grit and progressing to finer grits. After polishing, the connector should be inspected to ensure a high-quality finish.

By following these steps, You can successfully terminate a fiber optic cable with an SC connector. Proper termination is crucial for ensuring optimal performance and reliability in fiber optic networks.