
The ZC-FV108H-PLC is a vertical (dome-type) outdoor fiber optic splice closure built for splicing, protection, distribution, and fiber storage in OSP/FTTx networks. It is commonly used to connect distribution cable and drop/indoor cable in outdoor environments where sealing requirements are stricter than terminal boxes.

Below are the deployment-critical parameters that affect site compatibility, sealing reliability, and long-term maintainability.
| Item | Specification | Why It Matters |
|---|---|---|
| Model | ZC-FV108H-PLC | Use for BOM standardization and site documentation. |
| Type / Form | Vertical (Dome) Splice Closure | Compact layout, easy re-entry; common for manhole/duct/aerial use. |
| Protection Level | IP68 | Critical for water immersion risk (manhole/duct) and heavy rain zones. |
| Capacity | 48 cores (2 pcs × 24-core trays); Splice tray: max 24 cores / pc | Defines splice density and future expansion headroom. |
| Adapter Capacity (Max) | 36 pcs adapter (max) | Helps plan distribution/patching strategy in field deployments. |
| Sealing Method (Inlets) | Mechanical sealing | Focus on consistent torque/fit; improves re-entry and maintenance cycles. |
| Inlet / Outlet | 2 + 4 | Match feeder/distribution topology and splitting/branch requirements. |
| Port OD | Small round ports: 6 × OD 18mm | Cable OD mismatch is a top cause of sealing failures—validate before rollout. |
| Operating Temperature | -40°C to +60°C | Ensures stable sealing and housing performance in harsh climates. |
| Relative Humidity | ≤95% (at 40°C) | Relevant for tropical/high-humidity OSP deployments. |
| Atmospheric Pressure | 70 kPa to 106 kPa | Useful for altitude and environmental compliance considerations. |
| Dimensions | 470 × 220 mm | Affects manhole space planning and mounting logistics. |
| Material / Color | PP / Black | Engineering plastic housing; outdoor durability and appearance consistency. |
| Weight / Packing | Net: 2.15 kg (max) • Gross/carton: 18 kg • 6 pcs/carton | Impacts shipping cost, handling, and warehouse planning. |
Use the table below as a quick filter to decide whether ZC-FV108H-PLC is the correct closure for your site. This is designed for fast engineering review and procurement alignment.
| Decision Gate | Choose ZC-FV108H-PLC When… | Avoid / Consider Another Option When… | Procurement Risk Note |
|---|---|---|---|
| Environment | Outdoor OSP sites need IP68 sealing (duct/manhole/rain exposure). | Indoor/low-risk areas where IP-rated sealing is not required. | Wrong sealing grade causes repeat truck rolls and SLA penalties. |
| Capacity | You need up to 48 cores with 2×24 trays and clean routing. | You expect higher core count expansion beyond this closure’s practical limit. | Under-sizing capacity increases future retrofit costs and downtime. |
| Port / Cable Fit | Your cable OD matches OD 18mm small round ports (6 ports total). | Your feeder cable OD exceeds port range or requires different entry geometry. | OD mismatch is the #1 sealing failure—confirm cable jacket OD in RFQ. |
| Maintainability | You want mechanical sealing and repeated re-entry without special tools. | You require fully heat-shrink-only closure workflow or special operator preference. | Maintenance approach affects training, tooling, and field time per job. |
| Lifecycle | You prioritize long-life operation with a target 25-year service life. | You plan short-term temporary deployments where low-cost enclosures are acceptable. | Lifecycle focus reduces long-term OPEX even if CAPEX is slightly higher. |
The ZC-FV108H-PLC supports typical OSP cable workflows including direct connection and splitting connection. It is applicable to ribbon type optical cables and common optical cables, with splice trays designed for clean routing and adequate fiber storage.
| Planning Item | ZC-FV108H-PLC Reference | Engineer Notes |
|---|---|---|
| Total ports | Inlet/Outlet: 2 + 4 (6 total) | Align port use with feeder, distribution, and branch paths; label ports for re-entry. |
| Port OD | Small round ports: 6 × OD 18mm | Validate cable OD range and sealing components during FAT/SAT. |
| Splice tray layout | Max 24 cores / tray • Typical: 2 trays for 48 cores | Keep slack consistent; avoid overcrowding which increases micro-bending risk. |
| Bend radius control | Designed to maintain appropriate fiber curvature (field practice recommended) | Maintain clean routing and avoid sharp turns—especially near entry points and tray hinges. |
This closure is suitable for typical OSP installation conditions such as overhead (aerial), manhole/duct, and embedded situations, where stable structure and sealing performance are required.
| Scenario | Why It Works | Site Checklist (Fast Pass) |
|---|---|---|
| Manhole / Duct | IP68 sealing supports high moisture/temporary immersion risk. | Confirm space for 470×220mm • Verify port OD • Add strain relief. |
| Aerial | Optional aerial accessories enable overhead deployment workflows. | Check mounting kit • Cable sag/strain • UV/weather exposure plan. |
| Embedded / Outdoor Cabinet | Mechanical sealing helps re-entry without special tools. | Label trays/ports • Reserve slack • Document splice map for O&M. |
Standard accessories improve field installation consistency and reduce missing-tool delays. For procurement, confirm accessory completeness by carton and by job kit.
| Category | Included Items (Standard Accessories) | Notes |
|---|---|---|
| Consumables | Tag paper (1) • Sand paper (1) • Silver paper (1) • Cleaning tissue (1) • Insulating tape (1) | Ensure the kit matches your field SOP for labeling and cleaning. |
| Cable Management | Cable ties 3mm×10mm (12 pcs) • Fiber protective tube (3 pcs) | Use consistent tie-down points to keep routing repeatable across sites. |
| Sealing / Ports | Plastic plug + Rubber plug (10 pcs) • Plastic plug (4 pcs) | Port sealing parts are critical—inspect for damage before installation. |
| Heat Shrink | Heat-shrink sleeve 1.0mm×3mm×60mm (12–144 pcs) | Quantity may vary by configuration—confirm exact count in the PO. |
| Optional | Pole accessories (1 pc) • Aerial accessories (1 pc) | Request based on installation type; standardize to reduce field variance. |

For large-scale rollout, cost is more than unit price. The key drivers are truck rolls, fault isolation time, and re-entry effort. The closure design supports repeated opening without special tools and emphasizes organized tray routing.
| Driver | What to Control | Typical Failure if Ignored | Actionable Rule |
|---|---|---|---|
| Sealing integrity | Port OD fit, sealing parts condition, proper closure assembly | Water ingress, corrosion, intermittent attenuation | Add OD check in RFQ + field checklist; inspect plugs before install. |
| Fiber routing | Bend radius, slack management, tray labeling | Micro-bending loss, hard-to-debug degradation | Standardize routing path; document splice map per tray. |
| Maintainability | Re-entry time, tool requirements, accessory completeness | Long restoration time, inconsistent field quality | Bundle accessories per job kit; keep SOP aligned with mechanical sealing. |

The ZC-FV108H-PLC is a practical IP68-rated vertical splice closure for OSP environments that require reliable sealing, structured tray management, and repeatable field maintenance. For best results, treat cable OD validation and port sealing parts inspection as mandatory gates during both engineering design and installation.
Actionable recommendation: for each project, submit your cable OD, core count target, port usage topology, and installation method (manhole/duct/aerial). This ensures the closure configuration, accessories, and packing strategy match your deployment reality.
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