Source document: https://docs-lawep.s3.us-east-2.amazonaws.com/1697750027090.pdf (Georgia)
● ● n o i t a c i f i c e p S Yangtze Optical Fibre and Cable Joint Stock Limited Company No.9 Optics Valley Avenue, East Lake high tech Development Zone, Wuhan, Hubei province, China www.yofc.com Self-supporting Bow Type Drop Cable GJYXCH -1/2/4 B1.3 Cable Description The optical fiber unit is positioned in the centre.
Two steel wires are placed at the two sides.

A steel wire as the additional strength member is also applied.

Then, the cable is completed with a black or color LSZH sheath.

Messenger wire Messenger wire Strength Member Optical Fiber Outer Sheath Strength Member Optical Fiber Outer Sheath Messenger wire Strength Member Optical Fiber Outer Sheath Application  Internal FTTH applications horizontal and riser, especially suitable for the last leg in FTTH systems.
Characteristics     Special low-bend-sensitivity fiber provides high bandwidth and excellent communication transmission property Two parallel steel wires strength members ensure good performance of crush resistance to protect the fiber Steel wire as the additional strength member ensures good performance of tensile strength Simple structure, light weight and high practicability YOFC CABLE CONSTRUCTIONS DESIGN on 2019-12-17-C1 Page 1 / 3 Yangtze Optical Fibre and Cable Joint Stock Limited Company No.9 Optics Valley Avenue, East Lake high tech Development Zone, Wuhan, Hubei province, China www.yofc.com  Novel flute design, easily strip and splice, simplify the installation and maintenance Optical Fiber In Cable(ITU-G.652D) Optical properties of the SM fiber are achieved through a germanium doped silica based core with a pure silica cladding which meets ITU-T G652D, UV curable acrylate protective coating is applied over the glass cladding to provide the necessary maximum fiber lifetime.
Geometrical and optical characteristics of fiber in cable as the following table: Category Items Attenuation at 1310 nm Attenuation at 1383 nm Attenuation at 1550 nm Attenuation at 1625 nm Optical Characteristics Geometrical Characteristics Zero dispersion wavelength Zero dispersion slope Cable cut-off wavelength λcc Mode field diameter (MFD) at 1310 nm Mode field diameter (MFD) at 1550 nm Group Index of Refraction（Typical）at 1310 nm Group Index of Refraction（Typical）at 1550 nm Macro-bend loss(1 turn, 16mm radius) at 1550nm Macro-bend loss(100 turn, 25mm radius) at 1550nm Macro-bend loss(100turns, 30mm radius) at 1550nm Cladding diameter Cladding non-circularity Coating diameter Coating/cladding concentricity error Coating non-circularity Core/cladding concentricity error Unit dB/km dB/km dB/km dB/km nm ps/(nm2·km) nm µm µm / / dB dB dB µm ％ µm µm ％ µm Description Before cabled After cabled ≤ 0.34 ≤ 0.34 ≤ 0.20 ≤ 0.23 ≤0.40 ≤0.45 ≤0.30 ≤0.40 1300~1324 ≤ 0.091 ≤ 1260 8.7~9.5 9.9~10.9 1.466 1.467 ≤ 0.05 ≤ 0.05 ≤ 0.05 125 ± 1.0 ≤ 1 235~255 ≤ 12.0 ≤ 6.0 ≤ 0.5 Cable Dimensions and Constructions Items Descriptions Optical Fiber Strength Member Messenger wire Outer Sheath Fiber count 1 2 4 Color Blue Blue / Orange Blue/Orange/ Green/ Brown Material Diameter Material Diameter Material Thickness Steel wire 0.4 mm Steel wire 1.0 mm LSZH ≥0.4 mm YOFC CABLE CONSTRUCTIONS DESIGN on 2019-12-17-C1 Page 2 / 3 Yangtze Optical Fibre and Cable Joint Stock Limited Company No.9 Optics Valley Avenue, East Lake high tech Development Zone, Wuhan, Hubei province, China www.yofc.com Color Cable Diameter Cable Weight Net Weight Black 5.3(±0.2)*2.0(±0.2)mm Approx.
22kg/km Mechanical and Environmental Characteristics Items Test Method Descriptions Tensile performance IEC 60794-1-2 Method E1 Crush Resistance IEC 60794-1-2 Method E3 Impact Resistance IEC 60794-1-2 Method E4 Repeat Bending IEC 60794-1-2 Method E6 Torsion Cable Bend IEC 60794-1-2 Method E7 IEC 60794-1-2 Method E11 Temperature Range IEC 60794-1-2 Method F1 Bending Radius Static Dynamic short-term long-term short-term long-term 600N 300N 2200N/10cm 1000N/10cm No obvious change after test -40℃~+70℃ 15mm 30mm Packing Cables are coiled on wooden or plastic drum.
During transportation, right tools should be used to avoid damaging the package and to handle with ease.

Cables should be protected from moisture; kept away from high temperature and fire sparks; protected from over bending and crushing; protected from mechanical stress and damage.
Marking Unless otherwise specified, the cable sheath marking shall be as follows:  Color: White or Black  Contents: Cable manufacturer or owner, the year of manufacture, the type of cable, length marking  Interval: 1m Delivery Length Standard delivery length is 1km/drum or 2km/drum.

Other length available on request.

YOFC CABLE CONSTRUCTIONS DESIGN on 2019-12-17-C1 Page 3 / 3