What Is Fiber Access Terminal (FAT)?

A Fiber Access Terminal (FAT) is a key passive device used in FTTH (Fiber-to-the-Home) and other optical communication networks. It provides a secure and organized point for fiber cabling, splicing, splitting, and distribution, while ensuring reliable protection and easy management for long-term network operation.

FAT boxes are widely applied in:

• Internet access & broadband networks
• Video surveillance systems (CCTV/IP cameras)
• Cable TV (CATV)
• Telecommunication and data transmission systems

By integrating fiber splicing, patching, and protection in one unit, FAT boxes help operators reduce installation costs, simplify network expansion, and ensure stable performance.

Indoor vs Outdoor Fiber Access Terminals

1. Indoor Fiber Access Terminals

Indoor FATs are designed with compact size for convenient installation in apartments, office buildings, and homes. They are ideal for low-capacity fiber connections in FTTH construction projects.

Key features:

• Made of high-quality ABS+PVC materials, usually in white color
• Lightweight, wall-mounted design for quick deployment
• Easy connection for drop cables, pigtails, and patch cords
• Cost-effective solution for indoor fiber distribution

2. Outdoor Fiber Access Terminals

Outdoor FATs, also known as gel-sealed fiber distribution boxes, are engineered with IP68 protection level to withstand harsh weather, moisture, and dust. They act as a secure termination point for feeder cables, enabling smooth connections to drop cables within FTTx network infrastructure.

Key features:

• Made of UV-resistant, flame-retardant plastic, usually in black color
• High sealing performance against water and dust (IP68)
• Flexible installation: wall-mounted with screws or pole-mounted with stainless steel bands
• Extended internal space for easy cable termination and high-capacity fiber management

Key Advantages of Fiber Access Terminals

1. Durable design – long-term usage without frequent replacement
2. Compact & user-friendly – saves FTTH project budget and space
3. Plug-and-play ready – simple maintenance and quick network expansion
4. High splicing capacity – up to 48 cores in a single box
5. Integrated fiber management – includes splice cassette, adapter slots, and splitter holders
6. Outdoor-ready – IP68 protection for extreme conditions
7. Flexible applications – compatible with feeder cables, drop cables, patch cords, and pigtails

Why Choose Jera Fiber FAT Boxes?

At Jera Fiber, we design and manufacture fiber optic termination and distribution solutions tailored for global telecom operators, ISPs, and contractors.

✅ Own production & strict quality control – ensuring consistent performance and durability
✅ Competitive pricing – helping reduce your FTTH/FTTx deployment costs
✅ Flexible customization – available in various sizes, ports, and capacities
✅ Field-tested reliability – used in projects across Europe, Asia, and the Americas

Whether you need indoor compact FAT boxes or outdoor high-protection terminals, Jera Fiber provides ready-to-install solutions for efficient last-mile fiber deployment.

Conclusion

A Fiber Access Terminal (FAT) is an essential, cost-effective solution to terminate feeder cables and connect drop cables in FTTH and FTTx networks. With its proven reliability, scalability, and ease of installation, the FAT box remains a preferred choice for network operators worldwide.

Interested in our fiber access terminal boxes?
Contact Jera Fiber today for datasheets, pricing, and free consultation to find the best solution for your project.