Uni-tube Fiber Optic Cable 12 Cores GYXTW Fiber optic cable involves 250μm optical fibers into a loose tube filled with a waterproof compound.water blocking tape is placed between the steel tape and loose tube to insure the cable's compactness and longitudinal water blocking.this type is widely used for long-distance communication and inter-office communication Specification: Item GYXTW Fiber optic cable 12 cores Fiber type G652D Single mode Attenuation Coefficient 1310nm dB/km ≤0.35 Attenuation Coefficient 1510nm dB/km ≤0.22 Tension(Long Term) 600N Tension(ShortTerm) 1500N Crush(Long Term)N/10cm 300 Crush(Short Term)N/10cm 1000 Min. Bend Radius(Dynamic)mm 20D Min. Bend Radius(Static)mm 10D Operating temperature -40~+70℃ Cable diameter 6/7/8/9mm