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1) Short-distance network cabling The short distance range is generally less than 1 kilometer, and some manufacturers define this as within 500. Because the maximum transmission distance of network cables is 200m (the limit is 300m), exceeding this value will cause attenuation that can affect sig...

The SFP optical module is an interface device that converts gigabit electrical signals into optical signals (of course, there are also 100-megabit versions of this module, with the same principle, mainly distinguished by the difference in BOSA). It is an industry-standard small hot-swapable gigab...

Since World War II, wireless communication has received attention due to its significant achievements in military applications, which have greatly enhanced the environmental limitations of information transmission. Since then, wireless communication has been developing, but there is a lack of ext...

Many international and industry organizations have formulated various standards to regulate the production and manufacturing of optical modules, such as GBIC, SFF-0053, INF-8074 and SFF-8472, etc. Nowadays, as people’s demand for bandwidth keeps increasing, optical modules must also enhance...

The ports (gold finger ends) of SFP optical modules are hot-swappable I/O interfaces (referring to input/output interfaces). The gold fingers are generally covered with copper or gold on the surface to meet the wear resistance requirements for hot-swappable plugging. It is commonly found in netwo...

DDM information: Digital diagnostic function, which is equivalent to a case manual, can identify abnormal phenomena of the optical module and the abnormal areas, and can more accurately locate the source of the abnormality. It can diagnose the working status of the optical module and also monitor...