Failure Reason For XFP Optical Modules

For XFP fiber optical modules, the functional failures usually means transmitter failure and receiver failure. The most common problems are as follow:
1. Optical port pollution and damage
The pollution and damage of the module optical interface result in high optical link loss and failure
A. The optical port of the optical module is exposed to the environment, and the optical port is polluted by dust;
B. The end face of the used optical fiber connector has been contaminated, and the optical port of the optical module is contaminated;
C. Improper use of the end face of the fiber pigtail, scratches on the end face, etc.;
D. Use inferior fiber optic connectors;

2. ESD injury
ESD is the abbreviation of Electro Static Discharge, or “electrostatic discharge”.. ESD can produce several Ten Kv/m or even stronger electromagnetic pulse within even a few hundred ps (1ps = one hundred and ten billionth of a second) . Static electricity will attract dust, change the impedance between the lines, and affect product function and lifetime; the heat generated by the ESD’s instantaneous electric field or current will injure the component which will still work in the short term but the life will be affected; even the component insulation or conductor will be damaged to complete destruction
ESD is inevitable. In addition to improving the anti-ESD ability of electronic components, it is important to use it correctly. The factors that cause ESD damage are:
A. The environment is dry and easy to produce ESD;
B. Abnormal operation, such as: live operation of non-hot-swappable optical modules, direct contact with static sensitive pins of optical modules by hand without electrostatic protection; no anti-static package during transportation and storage;
C. The equipment is not grounded or the grounding is poor;