Non-Self-Supporting Butterfly Drop Cable is a type of optical cable used in Fiber-to-the-Home (FTTH) networks, primarily for indoor or short-distance outdoor installation. It is characterized by its lightweight and flexible structure, making it suitable for deployment in confined spaces. Below are its main features and application scenarios:
Main Features:
1. Structural Design:
- Adopts a butterfly (flat) structure, facilitating wiring and fixation.
- Typically consists of two parallel-arranged optical fibers and reinforcement members, enclosed in an outer sheath.
- Reinforcement members are usually made of aramid yarn or steel wire to enhance tensile strength.
2. Non-Self-Supporting:
- Lacks self-supporting capability and requires additional supports (e.g., hooks, cable trays) for installation.
- Suitable for short-distance, low-tension installation environments.
3. Lightweight and Flexible:
- Small outer diameter and lightweight, making it easy to deploy indoors or in conduits.
- Excellent bending performance, suitable for complex wiring environments.
4. Sheath Material:
- Typically made of flame-retardant materials (e.g., LSZH) to meet indoor fire safety requirements.
- Available in various sheath colors for easy identification.
5. Fiber Type:
- Commonly uses single-mode fiber (G.652D) to meet high-speed data transmission needs.
Application Scenarios:
1. Indoor Wiring:
- Used for fiber optic access in homes, offices, and other indoor environments.
- Can be installed along walls, ceilings, or floors.
2. Vertical Wiring in Buildings:
- Used for vertical wiring within buildings, connecting fiber networks across different floors.
3. Short-Distance Outdoor Wiring:
- Suitable for short-distance outdoor installation, such as from a fiber distribution box to a user's indoor location.
4. Conduit Installation:
- Can be deployed in conduits or cable trays, ideal for dense wiring environments.
Advantages:
- Easy Installation: Lightweight structure, easy to deploy and fix.
- Low Cost: Low material and production costs, suitable for large-scale deployment.
- High Flexibility: Ideal for wiring needs in complex environments.
Considerations:
- Non-self-supporting butterfly drop cables are not suitable for long-distance aerial installation, and excessive tension or bending should be avoided.
- For outdoor use, attention should be paid to waterproofing and UV resistance, with additional protective measures if necessary.
In summary, non-self-supporting butterfly drop cables are an important wiring solution in FTTH networks, suitable for indoor and short-distance outdoor scenarios. They are lightweight, flexible, and cost-effective..