Horizontal Type Optical Fiber Splice Closure
Horizontal Type Fiber Optic Closure
Horizontal type fiber closure is like a flat or cylindrical case. This type of fiber splice closure is the most commonly used one in mounted aerials or buried underground. Horizontal type fiber optic closure usually contains one or more fiber splice trays to provide space and protection for fiber optic splices. Fiber splice trays used in different fiber optic splice closures may have different designs and fiber counts. The common fiber counts of flat fiber splice closure are 12 and 24 fibers.
Horizontal fiber optic splice closures are designed to be waterproof and dust proof. They have good adaptability and compression resistance, for they are commonly made of high tensile construction plastic. If attached to a pole or hung from wiring, these fiber splice closures need to be held firmly in place, to avoid damage from weather and wind.
The following picture shows a 96-fiber horizontal fiber optic splice closure. It has two input ports and two output ports providing space for 96 fiber splices. There are four standard 24-fiber splice trays stacked together inside the fiber optic splice closure.
96 Core Optic Splice Joint Closure 2 in 2 out Horizontal Types F001
The GJS series horizontal type fiber optic splice closure is used for direct connection and disconnection of optical cable lines for overhead, directly buried and pipeline laying. It is used to increase or reduce trays/cassette for capacity requirement. The elastic integrated seal ensure tightening fit, and with slide-in-lock design, over 90 opening angle tray
Horizontal Type Optical Fiber Splice Closure – FAQ
What is a horizontal type optical fiber splice closure?
A horizontal type optical fiber splice closure is a sealed protective housing used to organize, protect, and manage fiber splices in outdoor optical networks. It supports straight-through or branch connections in underground or aerial installations.
What are the main features of a horizontal splice closure?
Typical features include IP68 waterproof rating, 12–288 fiber capacity, temperature range −40 °C to +65 °C, and UV-resistant ABS or PC housing. It ensures long-term stability under harsh environmental conditions.
How does a horizontal closure differ from a dome type?
A horizontal closure has an inline design that allows straight-through cable routing and side branch ports, while a dome type features a vertical cylindrical body. Horizontal closures are often preferred for direct burial or manhole applications.
Which standards apply to fiber splice closures?
Key standards include IEC 61300‑2‑42 for mechanical sealing tests, GR‑771‑CORE for environmental reliability, and YD/T 814.1‑2004 for structural requirements and fiber splice tray compatibility.
Which type of splice closure should I choose?
Choose horizontal closures for buried or wall-mounted networks requiring inline cable routing, and dome closures for pole-mount or small distribution points. Selection depends on fiber count, IP rating, and installation environment.
