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HS288-23 Dome FOSC 288-Core Fiber Optic Splice Closure IP68 7-Port ADSS/OPGW/FTTx myhopshun
Product Description
Why is the high-capacity Dome FOSC the ideal choice for backbone fiber optic cable splicing?
In FTTx, ODN, ADSS, and OPGW networks, backbone cables often traverse diverse environments, including aerial, duct, and direct-buried installations. Dome-style FOSCs feature a top-sealing structure that offers superior water resistance compared to inline models—particularly in scenarios involving long-term burial or standing water within HDPE ducts.
The HS288-23 features a large 515×310mm design, providing ample space for splicing 288 fibers (or up to 864 fibers using ribbon cables). It includes an air pressure test valve to facilitate post-installation airtightness checks, ensuring IP68-rated sealing. An integrated earthing device provides effective lightning protection and has passed DC 15kV withstand voltage testing. Booklet-style splice trays allow for independent access to each tray, while a fiber bend radius of ≥30mm ensures low signal loss.
Dome-style top structure: A black cylindrical housing with a plastic clamp-locking mechanism at the top ensures an IP68 seal.
7 universal cable ports: The base features 7 universal ports accommodating cables with diameters ranging from Φ5mm to Φ38mm. These include three small ports (each for one Φ16mm cable) and one large port (for either one Φ25mm cable or two Φ21mm cables).
Booklet-style splice trays: White splice trays that flip open like the pages of a book; each tray holds 24 fibers (or 6 ribbon cables), with a maximum capacity of 12 trays.
Plastic clamp locking: An external plastic clamp secures the upper and lower sections, working with a silicone gasket to ensure IP68 protection.
Heat-shrink cable port sealing: Cable entry ports utilize heat-shrink sealing technology, accommodating cables ranging from Φ5mm to Φ38mm. Air pressure test valve + Grounding terminal: Enables airtightness testing; provides lightning protection; passes DC 15kV withstand voltage test.
Re-openable design: Can be reopened after installation, facilitating future capacity expansion and maintenance.
Fiber bend radius ≥30mm: Ensures low signal loss.
Environmental and Performance Specifications
Dimensions: 515 × 310 mm (Height × Diameter)
Weight: 3.0 – 4.6 kg (depending on configuration)
Material: High-quality engineering plastic
Color: Black
Max. capacity (loose tube/stranded): 288 fibers
Max. capacity (ribbon): 864 fibers
Fibers per tray: 24 fibers (stranded) or 6 ribbons
Max. number of trays: 12 trays
Port configuration: 7 universal cable entry/exit ports
Cable diameter: Φ5 – Φ38 mm
Protection rating: IP68 ⭐
Cable entry sealing: Heat-shrink sealing
Housing sealing: Silicone gasket + plastic clamp ring
Operating temperature: -40°C to +65°C
Fiber bend radius: ≥30mm
Air pressure test valve: Included ⭐
Grounding terminal: Included ⭐
Withstand voltage test: DC 15kV/1min (no breakdown, no flashover) ⭐
Key Application Scenarios
High-capacity fusion splicing nodes for FTTx/ODN backbone networks (up to 288 stranded fibers or 864 ribbon fibers).
Straight-through or branching connections for ADSS and OPGW aerial cables.
Splice protection for HDPE conduit and direct-buried cables.
Long-term damp environments such as underground utility tunnels, cable ducts, and handholes (IP68 rated).
Specification
| Parameter | Technical Specification |
|---|---|
| Model | HS288-23 (also known as GJS-D023) |
| Product Type | Dome Fiber Optic Splice Closure (FOSC) |
| Dimensions (H × Diameter) | 515 mm × 310 mm |
| Weight | 3.0 – 4.6 kg (depending on configuration) |
| Max Capacity (Bunchy) | 288 Cores |
| Max Capacity (Ribbon) | 864 Cores |
| Port Configuration | 7 pieces (universal in/out ports) |
| Cable Diameter | Φ5 – Φ38 mm |
| Fiber per Tray | 24 (bunchy) / 6 pieces (ribbon) |
| Max Number of Trays | 12 |
| Color | Black |
| Material | Quality Engineering Plastics |
| Protection Level | IP68 |
| Sealing of Inlet/Outlet | Heat-shrinkable sealing |
| Sealing of Shells | Silicone rubber + Plastic hoop |
| Splice Tray Type | Booklet-Style Flip Trays |
| Fiber Bend Radius | ≥30 mm |
| Working Temperature | -40℃ ~ +65℃ |
| Air Pressure Test Valve | Yes |
| Earthing Deriving Device | Yes |
| Voltage Resistance | DC 15KV/1min, no breakdown or flashover |
| Reusable | Yes, can be reopened and reused |
| Installation Method | Aerial (ADSS/OPGW) / HDPE Duct / Direct Buried / Wall / Handhole |
Package Information
| Parameter | Technical Specification |
|---|---|
| Standard Accessories | Heat-shrink sleeves, nylon ties, heat-shrink fixing sleeves, branching clip, earthing wire, desiccant, labeling paper, special wrench, aluminum-foil paper |
| Installation Manual | Included |
Faq
Q1: What is the HS288-23 used for?
A: It is a 288-core Dome FOSC (Fiber Optic Splice Closure) used for optical fiber connection and protection in FTTx, ODN, ADSS, and OPGW networks. Suitable for aerial, underground, wall-mounting, duct-mounting, and handhole-mounting.
Q2: Is it a Dome or Inline closure?
A: It is a Dome (cap-style) closure, which uses top sealing instead of side sealing for better water resistance, especially in underground and flooded environments.
Q3: What is the protection level?
A: IP68 — the highest protection rating, suitable for long-term water immersion in manholes, HDPE duct banks, and underground environments.
Q4: What is the maximum capacity?
A: 288 cores (bunchy) or up to 864 cores (ribbon), with 24 fibers per tray (bunchy) or 6 pieces per tray (ribbon), up to 12 trays.
Q5: What is the port configuration?
A: 7 universal ports. Cable diameter Φ5–Φ38mm. Three small ports fit single Φ16mm cables; one large port fits one Φ25mm cable, two Φ21mm cables, or multiple smaller cables.
Q6: What material is the enclosure made of?
A: Quality engineering plastics, with good anti-erosion against acid, alkali, and salt; anti-aging; and reliable mechanical structure.
Q7: How is it sealed?
A: Triple sealing system — shells are sealed with silicone rubber and locked with plastic hoops; inlet/outlet ports use heat-shrinkable sealing.
Q8: What is the fiber bend radius?
A: ≥30 mm, ensuring low signal loss.
Q9: Does it come with an air pressure test valve?
A: Yes, it features an air pressure test valve for sealing tests after installation. Injected air pressure of 100KPa±5Kpa, immersed in water for 15 minutes without bubbles, and no pressure change over 24 hours.
Q10: Can it be reopened after installation?
A: Yes, the product can be reopened and reused after installation, making it convenient for future expansion.
Q11: What is the box size and weight?
A: Box size 515×310mm (H×Diameter); weight 3.0–4.6kg (depending on configuration).
Q12: What is the working temperature range?
A: -40℃ to +65℃.
Q13: Is it compatible with ADSS and OPGW cables?
A: Yes, the 7 ports and Φ5–Φ38mm cable diameter range are compatible with ADSS, OPGW, and other standard FTTx cables.
Q14: What is included in the standard accessories?
A: Heat-shrink sleeves, nylon ties, heat-shrink fixing sleeves (single & mass), branching clip, earthing wire, desiccant, labeling paper, special wrench, and aluminum-foil paper.
Related Product: https://hesfiber.com/product/hs024-24-mini-dome-fosc/