Let's take a look at the meanings of the fiber optic cable models. Ⅰ: Classification code and its meaning are: GY—room (field) optical cable for communication; GR—soft optical cable for communication; GJ - optical cable in communication room (office); GS - optical cable in communication equipment;. Fiber optic cables form the backbone of the contemporary communication systems. However, when it comes to picking the right cable, the task is not very easy because of the codes of different kinds of cables, like GYTA, GYTS, GYXTW, GYFTY, GYUV, and the like. The patterns are not a fortuitous. Optical fiber, formally known as optical waveguide fiber, is a dielectric waveguide that transmits information in the form of light pulses. It is the cornerstone of virtually all high-bandwidth, long-distance communication networks today.
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