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FOSCYM9 Dome Type Heat Shrinkable Fiber Optic Splice Closure 

$25
★★★★★
* Ref. Price

Description

FOSCYM9 Dome Type Heat Shrinkable Fiber Optic Splice Closure (FOSC) is heat shrinkable sealing and suitable for uncut cables.

Specification:

ModelFOSCYM9
TypeDome type
Sealing StructureHeat shrinkable
Number of Inlet/Outlet ports9 ports
Cable Diameter1 port×38mm; 8 ports×13mm
Maximum CapacityBunchy: 144 fibers;Ribbon: 432 fibers
Capacity per Splice TrayBunchy: single layer: 12 fibers; dual layers: 24 fibers;Ribbon: standard: 6pcs; max.: 12pcs
Quantity of Splice Tray6pcs
Body MaterialPC
Sealing MaterialThermoplastic rubber
Assembling methodAerial, direct buried, pipelined, wall mounting, manhole
Dimension470(H)×210(D)mm
Net Weight2.6~3.4KG
Temperature-40℃~65℃

Main Components:

ItemNameUsageQuantity
1Housing (Cover)To protect splices of fiber optic cables1pc
2Splice TrayTo fix Fiber Splice Protective SleevesMax. 6pcs
3Fiber Holding TrayTo store loose tube fibers1pc
4Housing (Base)To fix internal and external structure1pc
5Plastic HoopTo fix Housing Cover and Base1pc
6Sealing GrommetTo seal Cover and Base1 set

Standard Accessories:

ItemNameUsageQuantity
7Heat Shrinkable Protective Tubes and Branching ClipTo seal fiber optic splice closureAs per capacity
8Fiber Splice Protective SleevesTo protect fiber splicesSame as capacity
9Nylon TieTo fix buffer tubes with fibers inside8pcs
10Grounding WireTo connect with grounding device1pc
11Abrasive ClothTo polish fiber optic cable1pc
12Labelling PaperTo label fibers1 set
13Hanging HoopTo install on wall and pole1 set
14Heat Shrinkable Fixing Tube (Mass)To seal fiber cablesoptional
15Aluminum-foil PaperTo protect cable ports when heated1pc
16User ManualTo instruct installation1pc

Optional Accessories:

ItemNameUsageQuantity
1ValveTo perform pressure and sealing testing1pc
2Grounding DeviceTo derive metallic components of fiber cable1 set
3Buffer TubeTo protect fibers and be fixed on splice traysspecified
4DesiccantTo desiccate air in FOSC after sealing1 bag

FAQ

Q1: What is the main application and structural design of the FOSCYM9 Dome Type Splice Closure?

A: The FOSCYM9 is a dome-type Fiber Optic Splice Closure (FOSC) engineered with heat-shrinkable sealing to protect fiber optic cable splices, including uncut mid-span feeder cables. It supports versatile outdoor deployment methods, including aerial, direct buried, underground pipeline, wall mounting, and manhole installations.

Q2: What cable entry port configurations and splicing capacities does the FOSCYM9 support?

A: Key port configurations and capacity specifications include:

  • Entry/Exit Ports: 9 total ports (1 oval port × 38 mm diameter; 8 round ports × 13 mm diameter).
  • Bunchy Fiber Capacity: Up to 144 fibers across a maximum of 6 splice trays (12 fibers per single-layer tray / 24 fibers per dual-layer tray).
  • Ribbon Fiber Capacity: Up to 432 fibers.
  • Sealing Protection: Utilizes heat-shrinkable protective tubes, branching clips, and thermoplastic rubber grommets for long-term environmental protection.

Q3: What are the physical dimensions, material construction, and environmental ratings of the FOSCYM9 closure?

A: Technical specifications include:

  • Body & Sealing Materials: High-grade Polycarbonate (PC) housing with thermoplastic rubber seals.
  • Dimensions & Net Weight: 470 (H) × 210 (D) mm outer shell | 2.6 kg to 3.4 kg net weight.
  • Operating Temperature: Weather-resistant performance rated from -40°C to +65°C.
  • Standard Hardware Included: Features 1 fiber holding tray, grounding wire, hanging hoop set, nylon ties, abrasive cloth, labeling paper, user manual, and aluminum-foil protection paper.

Q4: Who manufactures the FOSCYM9 splice closure and what is its reference price?

A: Manufactured by FirstFiber Technologies, the FOSCYM9 Dome Type Heat Shrinkable Fiber Optic Splice Closure carries a reference price starting at $25 USD.

Q5: How can I select capacity options and submit a quote request?

A: Choose your target capacity (24 Cores, 48 Cores, or 72 Cores) on the product page and click “Add to Quote” for custom volume pricing or select “Request a Demo” to submit an evaluation request.

Customer Reviews

5.0 / 5.0 ★★★★★ Based on 56 customer reviews
Arthur Pendelton
January 15, 2026

Deploying the FOSCYM9 dome closure across our regional FTTx distribution network solved multiple cable-routing challenges at once. Engineered with 9 total entry/exit ports—including 1 main 38 mm oval port for mid-span uncut feeder loops and 8 round 13 mm branch ports—it allows our splicing crews to manage multi-directional drop runs effortlessly. The heat-shrinkable sealing system creates a reliable, airtight barrier without damaging delicate buffer tubes. Internally, the 6 dual-layer splice trays accommodate up to 144 bunchy fibers or 432 ribbon fibers with clean bend-radius management. The included hanging hoops and hardware made aerial pole and wall-mounting installations fast and secure.

Gillian Vance
November 4, 2025

At a reference price starting at just $25 USD, the FOSCYM9 delivers heavy-duty outdoor protection that rivals significantly more expensive closures. Its rugged Polycarbonate (PC) shell and thermoplastic rubber sealing grommet withstand severe outdoor exposure across a -40°C to +65°C operating range. We deployed dozens of these 470 × 210 mm closures in flooded manholes, underground pipelines, and direct buried trench lines without a single seal failure. Weighing between 2.6 kg and 3.4 kg, it provides a lightweight yet physically resilient housing for high-density fiber splices.

David Kowalczyk
April 28, 2026

We standardized on the FOSCYM9 for municipal fiber distribution due to its comprehensive standard accessory kit and organized internal layout. Each unit arrives with a dedicated fiber holding tray for storing loose tube buffer fibers, grounding wires, nylon ties, labeling paper, and heat-protective aluminum-foil paper. We also opted for the optional testing valve to verify pressure integrity prior to underground burial. The tray hinges lift smoothly to access lower splices without disturbing active channels. It is a dependable, well-engineered dome splice closure for scalable telecom infrastructure.

Showing 3 of 56 top reviews.

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