Dome Joint MMJ

Dome Joint MMJ | Medium Multi-Function Fibre Optic Splice Closure (Up to 288F Capacity)

The Medium Multi-Function Joint (MMJ) is a compact yet high-capacity dome-style fibre splice closure, ideal for splicing and managing optical fibre cables in a wide variety of deployment environments. Designed for use in Cable Chamber, Track, Spur, or Distribution joints, it provides exceptional versatility for FTTx, backbone, or access networks.

With a maximum fibre capacity of 288 fibres, this closure is engineered to deliver reliable performance in aerial, wall, pole-mounted, or underground installations.

✅ Key Specifications:

• Capacity: Up to 288 fibres (with 24 SE trays) or 192 fibres (with 24 SC trays)
• Ports:
  • 4 × Circular Ports (mechanical gland entry, up to 23mm cables)
  • 1 × Oval Port (heat shrink or mechanical entry)
  • 2 × Emergency Circular Ports (heat shrink, up to 12mm cables)
• Splice Tray Support:
  • 24 Single Element (SE) trays – 12 splices per tray
  • 24 Single Circuit (SC) trays – 4 splices per storage section, 48 total trays
• Splitter Support: Accommodates up to 4 optical splitters on input manifold
• Splice Protector Compatibility:
  • 1.3mm × 30mm heat shrink
  • 2.2mm × 45mm heat shrink
  • Crimp splice protectors
• Mounting: Vertical or horizontal pole/wall mounting bracket supplied
• Ingress Protection: IP68
• Loop Storage: Integrated basket for mid-span fibre management
• Testing: Pressure test valve included for flash testing
• Material: UV-resistant, durable plastic housing

✅ Features & Benefits:

✅ Compact closure with large internal capacity

✅ Supplied with 24 splice trays (SE or SC configuration)

✅ Tool-free re-entry for maintenance or future expansion

✅ Individual tray hinging – no disturbance to live fibres

✅ Mechanical and heat shrink sealing options for all ports

✅ Supports multiple cable diameters and configurations

✅ Integrated fibre routing manifold for neat cable organisation

✅ Optional Multi-Way Entry Glands for increased cable density

✅ Includes mounting bracket for flexible deployment

✅ Sealing glands can be pre-assembled offsite for faster installation

✅ Optional earthing and support tools available

📦 What’s Included:

• 1 × Dome Cap
• 1 × Base
• 1 × Closure Clamp
• 1 × Fibre Routing Manifold
• 2 × Tube Retainers
• 4 × Tube Retainer Covers
• 1 × Loop Storage Basket
• 1 × Pressure Test Valve
• 1 × Pole / Wall Mounting Bracket

🔧 Optional Accessories:

• 12 × SE or SC Splice Trays
• 1 × Oval Port Entry Kit
• 4 × Circular Port Entry Kits
• Multi-Way Entry Glands
• Silicone Grease
• Optical Splitters
• Emergency Port Cable Entry
• Splice Protectors
• Support Tools

The Dome Joint MMJ is a rugged, flexible, and future-ready fibre closure—perfect for high-density splicing and rapid deployment in challenging telecom environments.