Customers may encounter various failure problems when using optical modules, including link failure and packet loss. This article will focus on the causes and solutions of optical module failure.
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Optical port contamination and damage: If the optical module is not in use, it must be covered with a dust cap to avoid dust contamination of the optical port, which may cause the link to fail.
Contamination or failure of optical fiber connectors: During the installation, debugging, and maintenance of the network, the optical fiber connectors often undergo multiple insertions and extractions. However, if the operator does not protect the connector's end face, the optical fiber end face may become contaminated. This can affect the transmission performance of the optical link, and may even result in the entire optical link becoming unusable.
Electrostatic discharge (ESD) damage: Static electricity can attract dust and change the impedance between lines, thereby affecting the function and lifespan of the optical module.
Use of poor-quality modules: Poor-quality optical modules may experience link failure, packet loss, unstable transmission, and large optical attenuation.
Mismatched wavelengths or modes of the opposite-end optical module: The wavelengths of the optical modules must be matched at each end. If they are mismatched, data loss may occur during transmission. In addition, the working modes of the optical modules should also be matched on both ends. Full-duplex optical modules should be matched with other full-duplex optical modules.
Excessively high or low transmitting or receiving optical power: Check whether the optical module of the opposite end device uses normal optical power. The transmitting optical power value should not be less than the minimum value of optical power.
Mismatched optical fibers: In situations where there is no extra single-mode optical fiber, multi-mode optical fibers can be used with single-mode optical modules. However, it is best to match single-mode modules with single-mode optical fibers, and match multi-mode modules with multi-mode optical fibers.
Missing conductive metal on the gold fingers of the optical fiber module: Missing gold fingers can cause the optical fiber module to malfunction. The conductive metal on substandard optical fiber modules is missing, and the gloss is clearly not enough.
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Incompatibility between the electronic function circuits of the optical module and the device;
Incompatibility between the main chip and the device;
Physical line faults;
Routing information errors.
In summary, to greatly reduce the probability of optical module failure during use, it is best to choose reliable and stable performance, quality-guaranteed optical modules, and also understand the correct and professional operation methods, such as network cables or fiber optic jumpers and other related equipment.