Butterfly Flat FTTH Drop Cable
FTTH drop cables connect the terminal of a distribution cable to end users’ premises. They are usually flat, dry cable and can be installed aerially or underground.
Compared with common indoor fiber cables, butterfly-flat-ftth-drop-cable is small in diameter, water-resistant and soft. It also has the feature of low bending resistance and is suitable for cabling directly to the end users.
1. Optical Fiber Unit
FTTH drop cables are the last link in an FTTH network that brings fiber to the home. They connect a customer’s residence or building to the Optical Network Terminal (ONT) or demarcation point on their property. FTTH networks are used to deliver triple-play services like voice, video and data over high-speed broadband.
Unlike other types of fiber access cable, FTTH drops have a butterfly butterfly-flat-ftth-drop-cable shape. This shape is designed for a more efficient installation process and allows them to be strippped easily by hand, without the use of tools. This makes them a popular choice for fiber to the home deployment.
The optical fiber unit of a FTTH drop is positioned in the center of the cable with two parallel Fiber Reinforced Plastics (FRP) strength members on the two sides and a steel wire as an additional strength member. The cable is then completed with a black or white LSZH sheath.
The optical fiber in a FTTH drop cable can be either G652D or G657A2. Usually, it is G657A2, because this type of optical fiber has a small bending radius and won’t break when the cable is bent to a very tight angle. This helps avoid attenuation in the FTTH drop cable. Moreover, the LSZH sheath of this cable is flame retardant and low smoke, which increases safety in case of fire.
2. FRP Strength Members
The optical fiber unit of this cable is positioned in the center, and two parallel non-metallic strength members are placed at both sides. Then, it is completed with a black or colored low-smoke and halogen-free sheath. The unique flute design makes it easy to strip and splice, and the non-metallic material provides lightning protection and anti-electromagnetic interference. In addition, the sheath is made of LSZH, which meets the fire-retardant requirements of indoor use.
Compared with traditional indoor fiber cables, butterfly-flat-ftth-drop-cable is smaller in diameter and lighter in weight. It also offers superior crush resistance, making it the ideal solution for FTTH networks that require high crush resistance and large bandwidth.
Moreover, the FRP strength members of this cable make it possible to use lower-bend-sensitivity optical fibers, which reduce the attenuation at the bending radius and increase the communication transmission property. TUOLIMA’s butterfly-flat-ftth-drop-cable can be used for both short distance and long distance, making it the most suitable solution for FTTH applications. Moreover, the cable can be cut according to the site requirement, increasing the efficiency of construction. It is the best choice for users who want to Fiber Optic assembly companies build a high-capacity indoor/outdoor FTTH network. The ftth drop cable is available with 1-12 fiber cores, other stranded number can be customized.
3. LSZH Sheath
Butterfly FTTH drop cable is a self-supporting type of fiber access optical cable. This cable is suitable for laying indoor/outdoor, intelligent building, digital community cabling and campus network cabling. Its LSZH flame-retardant sheath is UV resistant and can withstand harsh environments. It has good compression resistance and flexibility.
Its low-bend sensitivity and small diameter make it easy to deploy and maintain. It’s also water-resistant and soft, making it ideal for use in FTTH projects. Moreover, its non-metallic strength member can provide lightning protection and anti-electromagnetic interference.
Compared with PVC cable, which emits heavy black smoke and toxic fumes when it burns, the low-smoke zero-halogen (LSZH) sheath is safer and more environmentally friendly. Its flame retardant properties prevent the release of hydrochloric acid, carbon monoxide and other toxic gases.
The optical fiber unit id positioned in the center and two parallel FRP strength members are placed at the two sides. The whole cable is completed with a black or color LSZH sheath. Optical fibers count is 1-12 cores, can be other cores upon request. Its tensile and crush performance are accordance with the values listed in the table. This is a reliable and economical choice for FTTH networks.
4. Steel Wire
FTTH drop cables are located on the subscriber end to connect the terminal of a distribution cable to a subscriber’s premises. They are typically small diameter, low fiber count cables with limited unsupported span lengths that can be installed aerially, underground or buried.
The optical fiber unit of a butterfly-flat-ftth-drop-cable is positioned in the center, and two parallel FRP strength members are placed at the two sides. The whole cable is completed with a white or black LSZH sheath. The special low-bend-sensitivity optical fiber can provide a much greater bandwidth to carry data and is less susceptible to interference than common indoor fiber cables. The non-metallic strength member can also offer lightning protection and anti-electromagnetic interference.
Class A core has a long transmission distance, stability, bending and flexibility. FRP and steel wire as the strength member ensures the cable has good performance of crush and tensile strength. It is also a fire-retardant cable. LSZH sheath provides a good safety in case of fire and the low-smoke, zero-halogen feature makes it safe for use in environments with high fire hazards.
This FTTH cable is usually single-mode UPSC 9/125 or G657A fiber, but it can be multimode upon request. It can be pre-terminated with LC fast connectors and it works well with cold splicing tools.
