(1) Ensure that this optical module has passed the quality certification
Only optical modules that have passed quality certification can be guaranteed to be intact modules. If they have not passed, it is recommended not to use such optical modules anymore.
The optical module itself malfunctions, and the optical power of the transmitting part is substandard: This can be operated by replacing it with a different optical module.
(2) Focus on inspecting the gold fingers of the optical module
If damage occurs or the optical module is covered with solder, it is recommended to replace it.
(3) Check whether the optical interface is contaminated or damaged
The contamination, scratches and damage at the optical interface ports cause the optical transmission link loss to increase, resulting in the optical link being disconnected. The reasons for this situation are as follows:
When optical modules are exposed to the air for a long time, it is easy for dust to enter the optical ports of the optical modules, causing abnormalities. It is recommended to wear protective cases on a regular basis.
The end face of the optical fiber connector used has been contaminated, and the connection of the optical module has caused secondary contamination of its optical port
Improper use of the end face of the optical joint with pigtail fiber, scratches on the end face, etc
Use low-quality optical fiber connectors
If the end face of the optical module core is dirty or the end face of the test optical fiber is dirty, you can try cleaning the end face of the optical module and the end face of the optical fiber. If the interface is contaminated, it can be cleaned. If it is damaged, it is recommended to replace it.
(4) There are defects at the connection points
If there are any abnormalities in the flange plate, the fiber-melting area or the equipment interface, they can be checked step by step in this sequence.
(5) ESD damage
Static electricity can attract dust, change the impedance between circuits, affect the function and lifespan of products, and the possible factors that cause ESD damage include
The working environment is dry and prone to ESD conditions.
Abnormal operations, such as: operating the optical module while it is powered on without hot-swapping
Touching the electrostatically sensitive pins of the optical module directly with hands without taking electrostatic protection measures
There was no anti-static packaging during transportation and storage
The equipment is not grounded or poorly grounded
The above is the knowledge explanation of “Troubleshooting and Solutions for Hardware Faults of Optical Modules” brought by Shenzhen HDV Phoelectronic Technology Co., LTD. The company’s module products cover optical fiber modules, Ethernet modules, optical fiber transceiver modules, optical fiber access modules, SFP optical modules, SFP optical fiber modules, etc. All the above-mentioned modular products can provide support for different network scenarios. For the above-mentioned products, a professional and powerful R&D team has been paired to provide technical support for customers. Moreover, a considerate and professional business team can offer high-quality services for customers’ initial consultation and subsequent work.