The ZC-FV108M-PLC 36/48 Cores Fiber Optic Vertical Splice Closure (Dome Type) is a vertical (dome-type) outdoor fiber optic splice closure designed for protective splicing and distribution between two or more cables. In real FTTx/OSP projects, it is commonly used to connect distribution cable to indoor/drop cable at access points, supporting both direct connection and splitting connection.
These parameters directly impact site compatibility, installation speed, and long-term O&M. Use them as RFQ gates for engineering and procurement alignment.
| Item | Specification | Engineer Notes |
|---|---|---|
| Model | ZC-FV108M-PLC | Standardize naming in drawings, BOM, and acceptance docs. |
| Type / Form | Vertical / Dome Splice Closure | Compact footprint; common for manhole/duct and overhead use. |
| Protection Level | IP68 | A must-pass gate for high moisture / possible immersion environments. |
| Sealing Method (Inlets) | Mechanical seal (M) | Supports repeated re-entry without special tools; focus on consistent assembly SOP. |
| Inlet / Outlet | 2 + 4 (6 ports total) | Map feeder/distribution branches; label ports for future maintenance. |
| Port OD | Small round ports: 6 × OD 18mm | Verify cable jacket OD in RFQ; mismatch increases water ingress risk. |
| Fiber Capacity | 48 cores (2 pcs × 24-core trays) | Balanced capacity for access/distribution splice points; plan for growth margin. |
| Splice Tray | Max 24 cores / tray (typical) | Keep slack consistent; avoid overcrowding to reduce micro-bending risk. |
| Adapter Capacity (Max) | 36 pcs adapter (max) | Supports distribution/patch planning depending on project architecture. |
| Operating Temperature | -40°C to +60°C | Outdoor climate readiness; helps reduce seasonal sealing issues. |
| Relative Humidity | ≤95% (at 40°C) | Relevant for tropical/high-humidity deployment regions. |
| Atmospheric Pressure | 70 kPa to 106 kPa | Useful for environmental compliance and altitude planning. |
| Material / Color | PP / Black | Engineering plastic housing with anti-aging and corrosion resistance. |
| Dimensions | 470 × 220 mm | Confirm space allowance for manhole/cabinet installations. |
| Weight / Packing | Net: 2.15 kg (max) • 6 pcs/carton • Gross/carton: 18 kg | Affects freight, handling, and warehouse planning for rollout projects. |
Use the shortcut table below for fast approval. It links engineering fit to procurement risk and lifecycle cost.
| Decision Gate | Choose ZC-FV108M-PLC When… | Consider Another Option When… | Cost / Risk Note |
|---|---|---|---|
| Environment | OSP sites need IP68 sealing (duct/manhole/rain exposure). | Indoor/low exposure sites where IP-grade sealing isn’t required. | Wrong sealing grade drives repeat truck rolls and SLA penalties. |
| Capacity | You need 36/48 cores at access/distribution points with clean routing. | You expect significantly higher future expansion beyond this closure’s practical capacity. | Under-sizing increases retrofit downtime and OPEX. |
| Port / Cable OD | Your cables match OD 18mm ports and sealing parts. | Feeder cable OD exceeds range or needs different entry geometry/ports. | OD mismatch is one of the most frequent sealing failures. |
| Maintenance Style | You want mechanical sealing and repeated re-entry without special tools. | Your SOP requires a different closure workflow (e.g., heat-shrink-only standardization). | Workflow mismatch increases MTTR and training/tooling cost. |
| Lifecycle Target | You prioritize long-life operation (target 25+ years). | Temporary deployments where short-term low-cost enclosures are acceptable. | Lifecycle focus reduces long-term replacements and service interruptions. |
For OSP deployments, acceptance should focus on sealing integrity and electrical safety (for metal parts/grounding) along with mechanical strength. The test items below help ensure stable operation in harsh environments.
| Test Item | Reference Requirement | Engineer Notes |
|---|---|---|
| Seal performance | Inflate to 100 kPa (models with air hole), soak in normal-temp water, observe 15 minutes: no bubbles. | Use as FAT/SAT gate; re-check after re-entry workflow training. |
| Insulation resistance | Metal work piece to earth: > 20 MΩ | Supports electrical safety checks where grounding is required. |
| Withstand voltage | 15 kV DC / 1 min: no breakdown or flashover | Useful for project specifications requiring high-voltage safety margins. |
| Fiber bend radius | Splice tray curvature radius: 40 mm | Maintain clean routing to reduce micro-bending loss over time. |
| Axial tensile strength | ≥ 1000 N | Relevant for aerial/strain conditions; use proper strain relief in installation. |
| Standard reference | Other performance aligns with YD/T814-1998; designed service life: 25 years | Document acceptance criteria in project QA checklist for consistency. |
For rollout projects, accessory completeness determines installation consistency. Procurement should verify included items per closure and consider “job kits” to avoid missing-part delays.
| Category | Included Items (Standard) | Procurement Notes |
|---|---|---|
| Consumables | Tag paper (1) • Sand paper (1) • Insulating tape (1) | Align with your field SOP for labeling and cleaning. |
| Tools | Spanner (2) | Useful for consistent assembly torque and faster re-entry. |
| Cable Management | Cable ties 3 mm × 10 mm (12 pcs) • Sealing rubber strip (1 pc) | Standardize routing and tie points to reduce variance across sites. |
| Fiber Protection | Fiber protective tube (3 pcs) • Heat-shrink sleeve 1.0 mm × 3 mm × 60 mm (12–144 pcs) | Heat-shrink sleeve qty may vary by configuration—confirm in PO. |
| Port Sealing Parts | Plastic plug + rubber plug (10 pcs) • Plastic plug (4 pcs) | Inspect for damage before installation; keep spares for maintenance. |
| Optional | Pole accessories (1 pc) • Aerial accessories (1 pc) | Request based on installation type; standardize kits by region/team. |
Transportation & storage: avoid rain, sun exposure, and squeezing during transportation. Store in a dry warehouse avoiding moisture, sun, and fire. Suggested storage temperature: 25°C to +40°C.
Unit price is only a small part of total cost. In OSP networks, the biggest cost drivers are repeat truck rolls, fault isolation time, and re-entry effort. This closure is designed to support repeated opening and maintenance without special tools, while keeping splice trays organized for faster restoration.
| Driver | What to Control | Failure Mode | Actionable Rule |
|---|---|---|---|
| Sealing integrity | Port OD fit, sealing parts condition, correct assembly | Water ingress, corrosion, intermittent attenuation | OD check in RFQ + on-site verification; keep spare sealing parts. |
| Fiber routing | Bend radius, slack management, tray labeling | Micro-bending loss, hard-to-debug degradation | Use consistent routing paths; record splice map per tray. |
| Maintainability | Re-entry workflow, accessory completeness, field SOP | Long restoration time, inconsistent field quality | Train mechanical sealing workflow; standardize job kits and labeling. |
The ZC-FV108M-PLC is a practical IP68-rated vertical dome splice closure for outdoor OSP/FTTx splice points, designed for harsh environments and long-life maintenance cycles. It supports organized tray routing, repeatable mechanical sealing, and accessory options for multiple installation methods.
Actionable recommendation: before ordering, confirm your cable OD, core count target, port plan (2+4), and installation scenario (manhole/duct/aerial). This prevents sealing mismatch, reduces truck rolls, and keeps your rollout schedule predictable.
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