4F Butterfly Flat Indoor FTTH Drop

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It’s a kind of Pigtail but assembly with Butterfly Flat Indoor FTTH Drop Cable. This is a last cable in FTTH project. Used widely between Fact plate, terminal box, ONU tec. With easy accessibility to the fiber and simple installation, FTTH cable can be directly connected to the homes. It is suitable for connecting with communication equipment and used as access building cable in premises distribution system. The optical fibers are positioned in the center of cable and two parallel Fiber Reinforce Plastic (FRP) strength members are placed at the two sides. Then, the cable is completed with LSZH sheath. Also, customers can specify your required connectors.



Good mechanical and environmental characteristic

Simple structure, light weight and high practicability

Low smoke zero halogen and flame retardant sheath

Novel flute design, easily strip and splice, simple installation and maintenance

Two parallel FRP strength members ensure good performance of anti-electromagnetic and crush resistance

Special low-bend-sensitivity fiber provides high bandwidth and excellent communication transmission property


Test Item Test Condition Value(dB)
Optical Performance Insertion Loss 1310nm LED light source <0.3 <0.3
Return Loss 1310nm LED light source >50 >60
Environmental Performance (Max. Insertion Loss change) High temperature +85°C168 hours <0.2
Temperature Cycle -40-+75°C, 21 Cycles 168 hours <0.2
Humidity Aging +75°C, 95%R.H,168 hours <0.2
Humidity/Condensation Cycling -10°C-+65°C, 90%~100%RH, 14 cycles 168 hours <0.2
Mechanical Performance ( Max. Insertion Loss change) Vibration 10-55Hz, 1.5mm(p-p) <0.2
Flex 0.9kg,-90o~+90o repeat for 100 cycles <0.2
Torsion 1.35kg,90o~+90o  ,10times <0.2
Withstand tensile 90N,10min <0.2
Drop H=1.5M,Total of 8 drops <0.2
Exchangeability Randomly <0.2
Durability 500 times <0.2


End-face Quality (SM)

4F Butterfly Flat Indoor FTTH Drop Cable assemblies

Zone Range (μm) Scratches Defects Reference
A: Core 0 to 25 None None IEC 61300-3-35:2015
B: Cladding 25 to 115 None None
C: Adhesive 115 to 135 None None
D: Contact 135 to 250 None None
E: Rest of ferrule None None


Technical Data:

Fiber Count 1F 2F/4F 6F-12F
Strength member FRP/KFRP/ Solid Steel wire
0.45-0.52mm 0.45-0.52mm 0.45-0.52mm
Cable diameter(mm) Approx. 2.0(±0.1)*3.0(±0.2) 2.0(±0.1)*3.0(±0.2) 2.0(±0.1)*4.0(±0.2)
Cable weight(kg/km) Approx 7/10 7.5/10.5 8.5/11.5
Tensile Strength Short/ Long Term (N) 200/100 for steel wire strength member

80/40 for KFRP wire strength member

Crush resistance short/long term (N/100mm) 1000/500
Operating temperature range(°C) -40°C ~+70°C


Main Mechanical and Environmental Performances

Items Test Standard Specified Value Requirements
Tension IEC 60794-1-2-E1 See Technical data Additional attenuation:

≤0.4dB after test

Crush IEC 60794-1-2-E3 See Technical data Additional attenuation:

≤0.4dB after test

Impact IEC 60794-1-2-E4 R=300mm, 10Nm,

one in 3 different places

Additional attenuation:

≤0.4dB after test

Repeated Bending IEC 60794-1-2-E6 R=30H Additional attenuation:

≤0.4dB after test

Temperature Cycling IEC 60794-1-2-F1 -40°C ~+70°C Attenuation change:

≤0.4dB/km after test


Connector’s Standard:

SC: TIA/EIA, FOCIS3, GR-326.NTT-SC IEC61754-4 and JIS C5973.

LC: TIA/EIA, FOCIS10, GR-326 EIA/TIA-604-10, IEC61754-20 and JIS C5973.



High quality Ferrule

4F Butterfly Flat Indoor FTTH Drop Cable assemblies

High quality SM Ceramic ferrule, Good concentricity<0.5um



Access Networks

LAN (Local Area Network)

Fiber Optic Communication System

FTTH (Fiber to The Home) Indoor Building

Optical fiber connected and transmitted equipment


Ideal Solution by FTTH Indoor Fiber Patch Cable

Butterfly Flat Indoor Drop Cable is widely used in fiber to the home (FTTH) network system, which can directly connect the communication line from the LAN to the end users. Butterfly flat drop cable uses special low-bend-sensitivity fiber to provide high bandwidth and excellent communication transmission, it’s very suitable for indoor cabling, end users directly cabling, and access network.

SC/APC +SC/UPC G657A1 FTTH Drop Cable Pigtail

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