Multi Loose Tube Fiber Optic Cables

Applications

Long distance outside telephone, CATV, Data, communications.

Installations

Installed in duct, self supporting (Figure 8 self supporting or ADSS All dielectric self supporting) and direct burial (with armoring).

Construction

The cable consists of 5 to 36 elements stranded in up to 3 layers around a central strength member and bound in a jacket. The elements are usually fiber containing tubes. However, fillers are also used, when needed to preserve cable geometry. Two to twelve color coded fibers are loosely laid in each tubes filled with water-blocking gel.

Technical Parameters

☆ Maximum Transmission Distance: 6km (Single Mode); 0.3km (Multimode)
☆ Maximum Pulling Load: 1500-2700 N (Short Term Installation); 900-1500N (Long Term Installation)
☆ Minimum Bending Radius:
Short Term Installation: 20 x Overall Diameter
Long Term Installation: 10 x Overall Diameter (Non Armored); 20 x Overall Diameter (Armored)
☆ Twist (Torsion Length): 125 x Overall Diameter
☆ Working Temperature: -40℃ ~ +70℃ (PE sheath)
☆ Storage Temperature: -50℃ ~ +70℃ (PE sheath)

Product Highlights

☆ All the fiber containing tubes are placed in concentric layers around the central member; through the control of the twist length, the fiber cable can achieve better pulling load and operating temperature.
☆ Tube Materials are water resistant and can sustain high tension. Being filled with special water-blocking gel, the tube can provide water protection for the fibers inside the tube.
☆ Central Member, which is usually either made of dielectric FRP, or solid/ stranded steel coated with polyethylene, are placed at the centre of the cables.

Ordering Information

AD-MLA-B-C- D-E-F-G-H-I-J-K-L
A: Loose Tube Diameter
B = 2.1 mm; C = 2.5 mm; D = 2.8 mm; E = 3.0 mm; F = 3.2 mm
B: Fiber Types
0=Fibers and copper conductors in cable; 1=Two or more fiber types
in a cable
4=50/125 Multimode (OM3); 5=50/125 Multimode (OM2);
6=62.5/125 Multimode (OM1); 7= NZDS SM fiber per G.656;
8=NZDS SM fiber per G.655; 9=Standard SM fiber per G.652D
C: No. of Tubes: 1-36
D: No. of Fibers per Tube: 2 - 12
E: Central Member: S=Solid steel; SR-Stranded Steel; F=Dielectric (FRP)
F: Inner jacket options
2Y =PE; Y =PVC; H =LSZH
G: Armour options
Blank=No armour; T=Corrugated steel tape armour; W=Steel wire armour
B=Bronze armour; D=Fiber glass armour; TW= Steel tape + Steel wire armour
H: Jacket material options
2Y =PE; Y =PVC; H =LSZH; 8Y= PA
11Y=PU; A=Aluminium moisture barrier; T=Anti-termite protection
I: Water-blocking options for cable core
X=No water-blocking; J= Water-blocking gel in tubes; JD=Water-blocking gel
in tubes+ dry water-blocking in cable core interstices; JJ= Water-blocking gel in
tubes and cable core interstices
J: Water-blocking options or cables with more than one jacket
X=No water-blocking; J=Water-blocking gel between jackets; D=Dry water-blocking between cable jackets;
K: Strength member options
A=Aramid yarn; AG=Aramid yarn and fiber glass yarn; G=Fiber glass yarn
L: General options
SS=Fig-8 self-supporting; UW=Under Water