Outdoor Screw-Seal FAT for Field-Reenterable FTTx Distribution
The SJ-FTTH-SK18-U combines splicing, splitting, fiber storage and pre-connectorized subscriber access in one compact outdoor enclosure. Unlike permanently welded terminal boxes, its screw-sealed detachable cover allows technicians to reopen the unit for maintenance or future reconfiguration.
Key Features
- Field-reenterable screw seal: Detachable cover for maintenance and configuration changes.
- Plug-and-play drop interfaces: Factory-installed reinforced Mini SC/APC or OptiTap-compatible adapters.
- Clear port identification: Color-coded input and subscriber ports simplify installation and service.
- Flexible splitter options: Supports 1×8 PLC, 1×9 PLC, or 1×2 FBT plus 1×8 PLC configurations, depending on port count.
- Outdoor-ready construction: Modified PP housing, high-quality stainless-steel accessories, IP68 protection and IK10 impact resistance.
- Flexible installation: Suitable for wall, pole or aerial mounting.
- Integrated fiber management: Organizes splicing, splitting and storage within a compact enclosure.
Technical Specifications
| Parameter | 9 Ports | 10 Ports | 12 Ports |
|---|---|---|---|
| Model | SJ-FTTH-SK18-U 9 Ports | SJ-FTTH-SK18-U 10 Ports | SJ-FTTH-SK18-U 12 Ports |
| Housing Material | Modified PP | Modified PP | Modified PP |
| Cover Sealing | Screw seal, detachable | Screw seal, detachable | Screw seal, detachable |
| Metal Accessories | High-quality stainless steel | High-quality stainless steel | High-quality stainless steel |
| External Dimensions | 199 × 193 × 78.5 mm | 199 × 193 × 78.5 mm | 199 × 193 × 78.5 mm |
| Pre-connectorized Adapters | 9 pcs: 1 red + 8 black | 10 pcs: 1 red + 1 blue + 8 black | 12-port configuration: 1 red + 3 blue/green + 8 black |
| Splitter Options | 1×8 PLC | 1×2 FBT + 1×8 PLC, or 1×9 PLC | 1×8, 1×4 + 1×8 PLC, or related project configuration |
| Protection | IP68 | IP68 | IP68 |
| Impact Grade | IK10 | IK10 | IK10 |
| Standard Color | Black | Black | Black |
| Installation | Wall / pole / aerial | Wall / pole / aerial | Wall / pole / aerial |
| Example Unit Packing | 22 × 21 × 9 cm, approx. 0.8 kg | 22 × 21 × 9 cm, approx. 0.9 kg | 22 × 21 × 9 cm, approx. 1.0 kg |
| Master Carton | 20 pcs | 20 pcs | 20 pcs |
For 12-port orders, confirm the adapter color layout and splitter mapping on the approved production drawing before manufacturing.
Interface and Cable Compatibility
- Reinforced Mini SC/APC or OptiTap-compatible adapter interfaces.
- Color coding helps distinguish feeder input, branch input and subscriber outputs.
- Designed for pre-terminated outdoor FTTx drop cables, eliminating field splicing at subscriber adapter ports.
- Specify the required cable construction and diameter when requesting a quotation so compatibility can be confirmed.
Application Scenarios
- Outdoor FTTH and FTTx last-mile distribution points.
- Residential and small commercial access networks.
- Wall, pole or aerial deployments requiring occasional field re-entry.
- Networks using reinforced Mini SC or OptiTap pre-connectorized drops.
How to Select the Right Configuration
| Configuration | Best Fit | Typical Splitter Arrangement |
|---|---|---|
| 9 Ports | Standard equal distribution to eight subscribers | 1×8 PLC |
| 10 Ports | Projects requiring a branch input or unequal split architecture | 1×2 FBT + 1×8 PLC, or 1×9 PLC |
| 12 Ports | Higher-density or project-specific multi-color adapter layouts | Confirm the required splitter and port mapping |
Include the port count, splitter type and ratio, adapter interface, mounting method and expected future growth in your RFQ.
Screw-Seal U Version vs Related FAT Designs
| Product Type | Primary Difference | When to Choose It |
|---|---|---|
| SJ-FTTH-SK18-U | Screw-sealed detachable cover | Projects that require field re-entry for maintenance or reconfiguration |
| SJ-FTTH-SK18-Q/T Caja NAP | Hot-plate welded, non-detachable enclosure | Projects prioritizing a permanently factory-sealed terminal |
| BWN-FAT-4A/8D/8F MST series | Different form factor, sealing options and deployment emphasis | Projects requiring an MST-style terminal architecture |
Testing and Quality Control
The enclosure is designed and manufactured for the stated IP68 ingress protection and IK10 impact resistance. Adapter optical performance, environmental test requirements and supporting reports should be specified and confirmed for the exact ordered configuration.
Product Views
Installation Options
Packaging and Procurement
Standard color is black. Example unit packing is 22 × 21 × 9 cm, with approximate gross weight varying by configuration. A typical master carton contains 20 units. Confirm the exact port mapping, splitter design, accessories, cable interface and packing details on the approved quotation and production drawing.
Request the Correct Configuration
Send your required 9, 10 or 12-port configuration, splitter type, mounting method and quantity. Our technical team will confirm the interface layout and provide the corresponding quotation, datasheet and production drawing.
