Hybrid cable, single mode/multi mode – Type 3744
Construction characteristics
Fibre optic element: Steel tube (1,9mm OD) with 4 off single mode fibre SMF (9/125).
4 off multimode fibre MM (50/125),
With a polyethylene black jacket to a nominal OD of 3,5mm
SM colours: white, yellow, green, blue
MM colours: red, orange, brown, grey
Conductors: 1,0 mm2 (18 AWG) tin plated copper conductor with dual wall insulation of Tecnopolymer compound. Nominal O.D. 2,23mm. (7 ea.)
Wrap: Mylar tape
Outer jacket: Polyurethane, Color of outer jacket Red
Mechanical Characteristics
Diameter: 10,5 mm ±0,50 mm
Operating temperature: -20°C to 80°C
Weight in air: 150 kg/km nom.
Weight in seawater: 65 kg/km nom.
Min. bending radius: 105 mm static, 158 mm dynamic
Depth rating: 6000 metres
Electrical and Fibre Optical Characteristics
Operating voltage: 2500 V (RMS)
Test voltage: 6 kVA.c x 1 minute
Electrical resistance: @20°C ≤20,4 Ωxkm
Insulation resistance: @20°C ≥ 1000 MΩxkm
Fibre Attenuation
SM – dB/km: ≤0,35 @ 1310nm
≤0,25 @ 1550nm
MM – dB/km: ≤2,8 @ 850nm
≤0,8 @ 1300nm
