8-Core fiber color sequence formula

　　关于8芯光纤的颜色顺序口诀，有多种说法。以下是两种常见的口诀：

　　Formula 1

　　"Red, orange, yellow, green, blue, indigo, purple, white, gray finishing knot." This formula covers common fiber sheath colors, but it is important to note that these colors do not necessarily correspond to a specific fiber type or use. The colors in the formula are mainly for easy memory and identification.

　　Second, formula two (for specific fiber types)

　　黄色：单模光纤。

　　橙色：多模50/125um光纤。

　　红色：多模62.5/125um光纤。

　　紫色：快速以太网专用光纤(100BASE-FX)。

　　蓝色：千兆以太网专用光纤(1000BASE-SX)。

　　绿色：高速以太网专用光纤(10GBASE-SR)。

　　灰色：光纤交换机、光端机等网络设备配套的光纤。

　　This formula is for a specific type of fiber and gives the type of fiber corresponding to each color. However, it should be noted that different manufacturers may use different color sequences and identification methods, so it is best to check the equipment and fiber manufacturer's regulations first when making fiber optic connections.

　　III. Other explanations

　　In practical applications, the color order of fiber optics may vary depending on the manufacturer, application scenario, and fiber type. Therefore, when performing fiber optic connection or maintenance, in addition to referring to the formula, it is also necessary to carefully check the identification and instructions on the fiber and equipment.

　　Overall, formulas can help us quickly memorize and identify the color order of optical fibers, but in practical applications, it is also necessary to judge and operate according to the specific situation.