What is a Fiber Optic Splice Closure?
A Fiber Optic Splice Closure is a passive device that protects fiber splices and cable joints from moisture, dust, and mechanical damage, ensuring long-term stable operation of fiber networks.
Langzhi Technology offers a full range of fiber optic splice closures and terminal boxes for various indoor and outdoor applications.
Types of Splice Closures
Horizontal Splice Closure
Most common type for aerial and duct cable splicing. Supports 2-in/2-out or more ports. Capacities from 12 to 144 fibers.
Vertical Splice Closure
Compact design for space-constrained installations like manholes and cabinets.
Fiber Terminal Box
Fiber terminal boxes are wall-mounted units for FTTH building distribution, installed in wiring closets or residential units.
Selection Factors
Capacity (Fiber Count)
Common: 12, 24, 48, 72, 96, 144 cores. Reserve 20% for future expansion.
Protection Rating (IP)
Outdoor closures need IP65 or IP68. Langzhi closures use high-quality engineering plastics and rubber seals.
Installation Method
Aerial lines: closures with mounting brackets. Duct lines: compact designs. Buried lines: high mechanical strength.
Splice Closure vs Terminal Box
- Splice Closure - Outdoor cable splicing, large capacity, high waterproof rating
- Terminal Box - Indoor fiber termination, used with ODF and patch panels
Contact Langzhi Technology for splice closure pricing.
