Fiber Splitter Dome Closure

Fiber Splitter Dome Closure (FTTH Outdoor Splice & Splitter Enclosure)

The fiber splitter dome closure is a rugged outdoor enclosure designed to protect fiber splicing and integrate optical splitters within a single unit. It is widely used in FTTH and FTTx networks to distribute optical signals while ensuring long-term protection against environmental conditions.

With its sealed dome structure, this closure provides waterproof, dustproof, and impact-resistant protection, making it ideal for aerial, pole-mounted, underground, and direct-buried installations.

What Is a Fiber Splitter Dome Closure?

A fiber splitter dome closure is a type of fiber optic splice closure that combines:

• Fiber splicing protection
• Optical splitter installation (PLC splitter)
• Cable distribution management

Unlike standard closures, it allows signal splitting and distribution directly inside the enclosure, reducing the need for additional cabinets or boxes.

👉 It acts as a central distribution point in passive optical networks (PON)

Why Use a Dome Closure Instead of Inline Closure?

Fiber closures are mainly divided into two types:

🔹 Dome Closure (This Product)

• Vertical, cylindrical structure
• Better sealing performance
• Higher capacity for splicing and splitters
• Ideal for outdoor and harsh environments

🔹 Inline Closure

• Horizontal design
• Used for straight cable splicing
• Lower capacity for distribution

👉 Dome closures are preferred in FTTH distribution nodes and branching points

Built-In Splitter Advantage

This product supports PLC splitters (e.g., 1:8, 1:16, 1:32), enabling:

• Direct fiber signal distribution
• Reduced installation time
• Lower network deployment cost
• Compact system design

Pre-installation of splitters and pigtails allows fast field connection, significantly improving efficiency.

Key Features

• Integrated fiber splicing and splitter solution
• High-strength engineering plastic housing
• Excellent sealing (IP-rated waterproof & dustproof)
• Robust to corrosion, UV, and harsh environments
• Supports multiple cable entry types
• Large capacity for splice trays and fibers
• Re-enterable design for maintenance

Applications

Fiber splitter dome closures are widely used in:

• FTTH (Fiber to the Home) distribution networks
• FTTx infrastructure deployment
• Telecom backbone branching points
• Outdoor fiber distribution nodes
• 5G and broadband network expansion

They are ideal for environments requiring secure outdoor fiber management and signal splitting.

FAQ

What is the difference between splitter closure and normal closure?

A splitter closure integrates a PLC splitter, while a normal closure only protects splices.

Can the splitter be pre-installed?

Yes, pre-installation is supported, reducing field work time.

Is it suitable for outdoor use?

Yes, dome closures are designed for harsh environments with waterproof sealing.