Fiber Optic Cable Company Material Code

Fiber optic cable material codes are standardized identifiers that specify fiber type, jacket color, inner fiber sequence, and connector type according to TIA/EIA standards.

Fiber Type and Outer Jacket Codes

Fiber optic cables are classified by mode and performance, and the outer jacket color is the primary identifier. According to the EIA/TIA-598-D standard, common jacket colors include:

• Orange: OM1/OM2 multimode
• Aqua: OM3/OM4 multimode
• Emerald Green: OM5 multimode
• Yellow: OS2 single-mode These colors allow technicians to quickly identify the fiber type in the field, while hybrid or custom cables may include printed legends for clarity .

Inner Fiber Color Sequence

Inside multi-fiber cables, each fiber strand is color-coded for identification. The standard 12-color sequence is:

1. Blue
2. Orange
3. Green
4. Brown
5. Slate
6. White
7. Red
8. Black
9. Yellow
10. Violet
11. Rose
12. Aqua For cables exceeding 12 fibers, the sequence repeats in groups of 12, and buffer tubes may also follow the same color coding. High-density or European standards may use a 16-color sequence for MPO connectors, including Olive, Magenta, Tan, and Lime for fibers 13–16 .

Connector and Boot Codes

Connector boots indicate polish type and fiber mode:

• Blue boot: UPC (Ultra Physical Contact)
• Green boot: APC (Angled Physical Contact)
• Beige or other colors: multimode connectors These codes help ensure proper mating and minimize insertion loss during installation .

Raw Material Codes

Fiber optic cables are constructed from specific materials, each with its own code or specification:

• Core & Cladding: Ultra-pure silica (SiO₂) with germanium doping
• Primary Coating: Soft UV-cured acrylate
• Secondary Coating: Hard UV-cured acrylate
• Buffer Tubes: Aramid yarn, FRP, or steel for strength
• Water-blocking Elements: Gel or dry core materials
• Outer Jacket: PVC, LSZH, or custom RAL colors for environmental protection
• Identification: UV-cured color inks for fiber numbering .

Custom and OEM Codes

Manufacturers often provide custom jacket colors, printed legends, and OEM material codes for project-specific requirements. These codes are critical for compliance, traceability, and maintenance in large-scale deployments .

Summary

Fiber optic cable material codes integrate fiber type, jacket color, inner fiber sequence, connector type, and raw material specifications. Following TIA/EIA standards ensures accurate identification, reduces installation errors, and supports long-term network reliability .