DESCRIPTION
The Butterfly SC/APC Field Assembly Fast Connector is specially designed for quick fiber termination in FTTH applications. It integrates a factory-polished ferrule with pre-embedded fiber and a mechanical splice element that aligns fibers precisely. The connector features a hinged butterfly-style housing for easier fiber alignment, offering stable and efficient installation with no need for polishing or adhesives. It supports 3.0×2.0mm flat drop cables, making it a preferred solution for high-speed deployments and emergency fiber repairs.
Engineering Suitability & Selection Boundaries
- When This Product Is the Right Choice
- Typically selected for FTTH drop termination where installers need rapid SC/APC field assembly on 3.0×2.0 mm flat drop cable without fusion splicing, epoxy, or polishing.
- Commonly used for emergency repairs and on-site re-termination when restoration speed matters and the workflow supports mechanical splice assembly.
- Usually appropriate when the site requires APC reflection control (RL ≥60 dB) for access networks and wants a connector format that helps technicians verify seating via a visual alignment window.
- Typically suitable when the deployed fiber types align with the stated set (G.657A1/A2, G.652D) and the crew can follow consistent strip/cleave handling.
- When This Product May NOT Be Suitable
- May not be suitable when the drop cable geometry is not 3.0×2.0 mm, since clamp fit and strain retention depend on the specific cable profile.
- Commonly unsuitable if field conditions prevent consistent cleave quality, cleanliness, and insertion depth control, as mechanical splice performance is more technique-sensitive than fusion splicing.
- May not be appropriate for applications requiring high rework frequency, since reusability is limited and repeated re-assemblies can increase variability.
- Typically not suitable when the installation environment requires a sealed hardened interface; this is a fast field-assembly termination and relies on the enclosure for environmental protection.
- Common Selection Mistakes to Avoid
- Using the connector on “similar” flat drops without confirming the exact 3.0×2.0 mm size, which commonly leads to weak retention and intermittent loss under movement.
- Treating the visual window as proof of quality without controlling strip length and cleave, which commonly causes IL variation during acceptance tests.
- Mixing APC and UPC ecosystems in the same handoff area without strict labeling and procedures, which commonly creates turn-up mistakes and rework.
Feature Details

- Tool-Free Assembly: Enables fast fiber termination without fusion splicer or curing.
- Mechanical Splicing Technology: Provides high precision alignment and stable signal performance.
- High Durability: Strong tensile and impact resistance suitable for various environments.
- Visual Alignment Window: Easy verification of fiber position during installation.
- Wide Compatibility: Works with G657A1/A2, G652D fibers.
Specification
| Item | Parameter |
| Connector Type | SC/APC |
| Applicable Cable Size | 3.0mm x 2.0mm Flat Drop Cable |
| Fiber Mode | Single-mode |
| Insertion Loss | ≤ 0.3 dB (Typical ≤ 0.2 dB) |
| Return Loss | ≥ 60 dB |
| Operating Temperature | -40°C ~ +85°C |
| Tensile Strength | > 30N |
| Reusability | ≥ 5 Times |
| Material | Flame-retardant ABS, Ceramic Ferrule |
| Polishing Method | Pre-polished, Field Assembly |
Application Details
- FTTH Network Rollouts: Rapidly terminate indoor or outdoor fiber drops with precision.
- On-Site Fiber Repair: Ideal for maintenance technicians performing emergency fixes.
- ODN Infrastructure Projects: Efficient for large-scale deployments requiring consistent termination quality.
- Patch Panel Terminations: Used in fiber distribution frames where fast, repeatable connections are required.
FAQ
Q1: What cable size is this connector designed for?
It is specifically designed for 3.0×2.0 mm flat FTTH drop cables.
Q2: Does installation require epoxy or polishing tools?
No. The connector is pre-polished and uses mechanical splicing, requiring no epoxy, curing, or polishing.
Q3: What optical performance can be expected?
Typical insertion loss is ≤0.2 dB, with return loss ≥60 dB for SC/APC connections.
Q4: Is the connector reusable?
Yes. It can be reassembled at least five times, making it suitable for re-termination and testing.
Q5: Which fiber types are supported?
It supports common single-mode fibers including G.657A1, G.657A2, and G.652D.
Q6: Is it suitable for outdoor installations?
Yes. The materials and temperature range support both indoor and outdoor FTTH deployments.
Q7: When is this connector most useful?
It is ideal for rapid FTTH installations, emergency fiber repairs, and projects where fusion splicing is impractical.
Q8: Does it comply with Ethernet standards?
Yes. It is compliant with IEEE 802.3z requirements for Fast Ethernet and Gigabit Ethernet applications.





