The code for a 6-core optical fiber cable from China Telecom is

For a 6-core optical fiber cable, the standard TIA-598-C color sequence is: Blue, Orange, Green, Brown, Slate, White.

Fiber Color Sequence

According to the TIA-598-C standard, which is widely adopted by China Telecom and other manufacturers, the first six fibers in a multi-fiber cable are color-coded as follows :

1. Fiber 1 – Blue
2. Fiber 2 – Orange
3. Fiber 3 – Green
4. Fiber 4 – Brown
5. Fiber 5 – Slate (Gray)
6. Fiber 6 – White

This sequence ensures consistent identification during installation, splicing, and maintenance. Each fiber is numbered in order, and the color provides a visual cue to prevent miswiring or cross-connections.

Additional Notes

• Outer Jacket: China Telecom cables may use a standard yellow jacket for single-mode OS2 fibers or orange for multimode OM1/OM2, following TIA-598-C conventions .
• Connector Identification: UPC connectors typically have blue boots, while APC connectors have green boots, which helps match fiber type and polish style .
• Cables with More Fibers: For cables exceeding 12 fibers, the 12-color sequence repeats with stripe markers, but for a 6-core cable, no repetition is needed .
• Chinese Manufacturers: While the TIA-598-C standard is followed globally, slight variations in color shades may occur, but the sequence order remains the same .

Using this color code ensures compatibility with China Telecom's network infrastructure and simplifies fiber management in both indoor and outdoor installations.