Fiber Optic Splice Closure Mechanical Dome Type


The OYI-FOSC-M20 dome fiber optic splice closure is used in aerial, wall-mounting, and underground applications for the straight-through and branching splice of the fiber cable. Dome splicing closures are excellent protection of fiber optic joints from outdoor environments such as UV, water, and weather, with leak-proof sealing and IP68 protection.

Product Detail


Product Tags

The closure has 5 entrance ports on the end (4 round ports and 1 oval port). The shell of the product is made from ABS+PP material. The shell and the base are sealed by pressing the silicone rubber with the allocated clamp. The entry ports are sealed by heat-shrinkable tubes. The closures can be opened again after being sealed and reused without changing the sealing material.

The closure's main construction includes the box, splicing, and it can be configured with adapters and optical splitters.

Product Features

High-quality ABS+PP materials are optional, which can ensure harsh conditions such as vibration and impact.

Structural parts are made of high-quality stainless steel, providing high strength and corrosion resistance, making them suitable for various environments.

The structure is strong and reasonable, with a mechanical sealing structure that can be opened and reused after sealing.

It is well water and dust-proof, with a unique grounding device to ensure sealing performance and convenient installation.

The splice closure has a wide application range, with good sealing performance and easy installation.  It is produced with high-strength engineering plastic housing that is anti-aging, corrosion-resistant, high-temperature resistant, and has high mechanical strength.

The box has multiple reuse and expansion functions, allowing it to accommodate various core cables.

The splice trays inside the closure are turn-able like booklets and have adequate curvature radius and space for winding optical fiber, ensuring a curvature radius of 40mm for optical winding.

Each optical cable and fiber can be operated individually.

Using mechanical sealing , reliable sealing, and convenient operation.

The protection grade reaches IP68.

Designed for FTTH with adapter if needed.

Technical Specifications

Size (mm) Φ130 * 440 Φ160X540
Weight (kg) 2.5 4.5
Cable Diameter (mm) Φ7~Φ25 Φ7~Φ25
Cable Ports 1 in, 4 out 1 in, 4 out
Max Capacity Of Fiber 12~96 144~288
Max Capacity Of Splice Tray 4 8
Max Capacity Of Splice 24 24/36 (144Core Use 24F Tray)
Max Capacity Of Adapter 32Pcs SC Simplex
Cable Entry Sealing Mechanical Sealing By Silicon Rubber
Life Span More Than 25 Years
Packing Size 46*46*62cm (6Pcs) 59x49x66cm (6Pcs)
G.Weight 15kg 23kg


Be suitable for aerial, duct, and direct buried applications.

CATV environments, telecommunications, customer premises environments, carrier networks, and fiber optic networks.

Pole Mounting

Pole Mounting

Aerial mounting

Aerial mounting

Product Pictures

Standard Accessories For M20DM02

Standard Accessories For M20DM02

Pole Mounting Accessories For M20DM01

Pole Mounting Accessories For M20DM01

Aerial Accessories For M20DM01 and 02

Aerial Accessories For M20DM01 and 02

Packaging Information

OYI-FOSC-M20DR02 96F as a reference. 

Quantity: 6pcs/Outer box.

Carton Size: 46*46*62cm.

 N.Weight: 14kg/Outer Carton.

G.Weight: 15kg/Outer Carton.

OEM service available for mass quantity, can print logo on cartons.

Inner Box

Inner Packaging

Outer Carton

Outer Carton

Packaging Information
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