How to use and maintain fiber optic patch cords?

- Nov 06, 2020-

 Optical fiber jumper connection and disconnection method

Optical fiber jumpers can be used to connect a variety of network equipment and devices with optical fiber interfaces, such as optical modules, adapter panels, distribution boxes, wavelength division multiplexers and demultiplexers, optical fiber transceivers, etc. The following will take a common jumper to connect the optical module on the switch as an example to introduce the general operation steps in detail.

Optical fiber jumper connection steps

1. Remove the dust caps on the connectors at both ends of the optical module and fiber jumper, and save them for later use.

2. Correctly insert the jumper connector into the module.

3. Tighten and fix the optical fiber cable with a cable tie, and shape it to protect the jumper.

Optical fiber jumper disconnection steps

1. Run the command to close the switch port where the optical module is inserted.

2. Carefully pull out the fiber jumper connector from the module.

3. Cover the connectors at both ends of the fiber jumper and the optical module interface with dust caps.


1. The installer must have sufficient technical knowledge and experience in network wiring to ensure installation quality and safety.

2. Be sure to wear protective gloves and anti-static wristbands when handling active devices to prevent damage from fiber fragments and static electricity.

3. Make sure that the end face of the optical fiber connector is clean before use.

4. Pay attention to the bending radius of the fiber jumper when using it. Excessive stretching or squeezing may cause loss.

5. Do not allow the jumper to be suspended or placed freely from the device to prevent breakage when the jumper is accidentally pulled.

6. Avoid frequent insertion or removal of jumpers in the equipment to reduce wear.

7. Do not look directly at the end face of the jumper connector when connecting to prevent the laser from hurting your eyes.

8. After installation, the work area should be cleaned thoroughly.

Optical fiber jumper maintenance method

Although the use of optical fiber jumper is simple, its daily maintenance work cannot be ignored. Proper cleaning and maintenance not only ensure smooth signal transmission, but also extend the service life of the optical fiber to a certain extent.

Clean the fiber jumper in time

Once the optical fiber is contaminated by dust, oil stains and other substances, the quality of optical signal transmission is greatly compromised. In addition, the metal particles produced by the abrasion of the connector body and the fiber shell may also block the fiber, causing signal loss and causing loss to users. Therefore, it can be said that optical fiber jumpers are actually very "fragile", and timely cleaning is essential.

Generally speaking, fiber patch cord cleaning is mainly for the connectors at both ends. There are two main cleaning methods, namely dry cleaning and wet cleaning.

There is a slight difference between the two and can be used together. Commonly used dry cleaning tools include cassette-type fiber optic cleaning boxes and one-touch cleaning pens, and wet cleaning tools include dust-free wipes and cleaning sticks.

Reasonable storage of optical fiber jumpers

1. Do not bend the optical fiber jumper beyond its minimum bending radius, especially in the narrow space of high-density optical fiber wiring.

2. Use appropriate tools to redesign the fiber jumper path to protect the cables from damage, such as horizontal cable management racks.

3. Do not hit the optical fiber connector, otherwise the end face may be worn, and the fragments will pierce the skin. Therefore, it is recommended to put a dust cap on the jumper at any time.

4. For equipment to detect and identify faults, such as damage and full attenuation inside the fiber jumper, optical time domain reflectometer (OTDR) and fiber microscope can be used.


This article lists some common problems and related suggestions that need to be considered when using optical fiber jumpers, including how to connect and disconnect devices, as well as daily cleaning and maintenance items. I hope these tips can help you deploy a safer and more stable fiber optic cabling system and bring you higher benefits.