Product Name：Figur-8 fiber optic cable
Description：1. General
This specification covers the design requirements and performance
standards for the supply of single mode optical cables to be used
in aerial application.
The features described in this document are intended to provide
information on the performance of ACEC’s optical cable and aid in
handling and installation.
1.1 Cable Description
Loose Tube Cable is a design that has superior tensile strength and
flexibility in a compact cable size.
ACEC’s Loose Tube Cable utilize Reverse Oscillating Lay (ROL) of
the loose tube for quick and easy midspan entry, and provides
excellent optical transmission and physical performance.
Recommended applications include aerial.
1.2 Quality
ACEC ensures a continuing level of quality in our cable products
through
several programs including ISO 9000.
1.3 Reliability
ACEC ensures product reliability through rigorous qualification
testing of each product family. Both initial and periodic
qualification testing are performed to assure the cable’s
performance and durability in the field environment.
1.4 Reference
IEC 60793-1, 60793-2, 60794-1
ITU-T G650, G652
2. Optical Fiber
2.1 Single-Mode Fiber
ACEC offers Single Mode (SM) optical fiber, manufactured by the
Vapour Axial Deposition (VAD) process to produce the highest
quality glass with excellent geometry, high strength
characteristics and attenuation that approaches theoretical
minimum.
The SM fiber is fully compatible with other commercially available
SM fibers and has zero dispersion wavelength around 1310 nm.
2.1.1 General Design
Optical properties of the SM fiber are achieved through a germanium
doped silica based core with a pure silica cladding which meets
ITU-T G652. UV curable acrylate protective coating is applied over
the glass cladding to provide the maximum fiber lifetime.
2.1.2 Construction
Mode field diameter at 1310 nm9.20.4 mm
Mode field concentricity error0.4 mm
Cladding diameter1251 mm
Cladding non-circularity1 %
Primary coating materialUV curable acrylate
diameter25015 mm(colored)
2.1.3 Optical Characteristics
Attenuation at 1310nm0.4 dB/km
in 1285-1330nmAttenuation at 1310nm + 0.1 dB/km
at 1550nm0.24 dB/km
in 1525-1575nmAttenuation at 1550nm + 0.05 dB/km
Dispersion in 1288-1339nm3.5 ps/nm×km
at 1550nm18.0 ps/nm×km
Zero dispersion wavelength1300 1324 nm
Zero dispersion slope0.093 ps/nm2×km
Cabled cut-off wavelength (lcc)1260 nm
Polarization mode dispersion0.5 pskm
2.1.4 Mechanical Characteristics
Proof stress level1.2 % (0.86 GPa)
Fiber curl (Fiber radius of curvature)4 m
3. Fiber Optic Cable
3.1 General Design
The color coded fibers are housed in multiple color coded plastic
loose tube which are stranded around a central strength member
utilizing Reverse Oscillating Lay (ROL).
Water blocking compound, filling the interstices within the core,
provides protection against water ingress.
Laminated aluminum polyethylene sheath with steel suspension wire
are applied over cable core to form Figure-8.
3.2 Construction
ItemSpecification
Central strength member materialCentral strength member
Yarn (if necessary)Water blocking yarn(s)
Loose tube materialPBT
-diameterNom. 1.9 mm
FillerPlastic
Filling compoundJelly
Wrapping materialPlastic tape
Rip cord materialPlastic yarn
Moisture barrierAluminum tape coated with polymer on both sides
-thicknessNom. 0.20 mm (Aluminum foil)
Nom. 0.05 mm (polymer coating)
Sheath materialHigh density Polyethylene* colored black
-thickness1.5 mm
Suspension wire material7 strands of galvanized steel wire
-diameterNom. 1.4 mm per piece (total 7 pcs)
-sheathHigh density Polyethylene* colored black with nom.
1 mm thickness
(webNom. 3 mm in height, Nom. 2 mm in width)
*NoteIn order to prevent sheath slipping in closures, please fix the
cable sheath tightly according to installation manual of the
closures.
3.2.1 Buffer Tube Stranding
Fiber countMax. fiber number per tubeNumber of tube and filler
865
