Joint Enclosures

FIBER OPTIC JOINT CLOSURE DOME TYPE (MOD-J03D)

The MOD-J03D Dome Type Fiber Optic Joint Closure is engineered to provide secure and long-lasting protection for optical fiber splices in challenging outdoor and underground environments. Designed for use in aerial, duct, and direct-buried networks, this closure offers a highly reliable, waterproof, and dustproof housing that ensures stable performance over time.

Its dome-shaped structure delivers a balance of high splice capacity and compact design, allowing for efficient installation in limited spaces. The flexible configuration supports multiple cable types and diameters, making it suitable for a wide range of network topologies.

With compatibility for both single fiber and ribbon fiber applications, the MOD-J03D is ideal for backbone, feeder, and distribution networks, providing network operators with a robust and versatile solution that reduces maintenance time and enhances long-term reliability.

Application

  • Branching and straight-through fiber optic joints

  • Pole-mount, wall-mount, and manhole installations

  • Buried and aerial fiber optic networks

  • Suitable for all high-speed transmission systems (FTTx, metro, backbone)

  • Compact dome design, ideal for multi-purpose applications

  • Reliable choice for emergency repair of damaged optical cables

Features & Benefits

  • Outdoor dome-type closure designed for 12 to 48 fibers with modular splice trays

  • Medium-sized housing suitable for backbone, feeder, and distribution networks

  • Robust PP+GF (polypropylene + glass fiber) construction for UV resistance, flame retardancy, and long-term durability

  • 2 inlet + 4 outlet ports for flexible cable management (supports multiple diameters)

  • IP68-rated sealing with mechanical clamp + heat-shrink system for superior protection

  • Craft-friendly design ensures fast installation and easy maintenance

  • Expandable splice tray system supports up to 4 trays (12 cores each) for flexible fiber counts

  • Compatible with all optical cable types – loose tube, single fiber, and ribbon fiber

Technical Specifications

Product Variants

Item No.

MOD-J03D-12C

MOD-J03D-24C

MOD-J03D-48C 

Description

With 1 × 12C Splicing Tray 

With 2 × 12C Splicing Trays 

With 4 × 12C Splicing Trays 

Capacity (Fibers)

12 fibers

24 fibers

48 fibers 

Size: 350 × ⌀230 mm
Material: PP + GF (Polypropylene + Glass Fiber)
Ports: 2 inlets + 4 outlets
Protection Level: IP68
Operating Temperature: −40 °C ~ +65 °C

Mechanical Description / Data

Parameter

Dimensions

Cable Entry 

Color

Material 

Splice Trays 

Weight 

Value

350 mm × ⌀230 mm

2Inlets + 4 Outlets

Black

PP + GF (Polypropylene + Glass Fiber)

1–4 × 12F each

1.9 kg (approx.)

Technical Description / Capacity

Parameter 

Fiber Count 

Protection Class (IP) 

Closure with Grounding 

Closure with Valve 

Closure with Wall/Pole Holder 

Distributor Housing Type 

Version 

Lockable

Splice Tray 

 

Value

12 to 48

IP68

Yes

No

Yes

Dome

Splice

Yes

Yes (Expandable)

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