Direct Buried Cables, Capacity up to 216 fibers

Technical Specification

Corrugated Steel Tape Armored Direct Buried Single Jacket Optical Fiber Cables

GENERAL

The cable is for outdoor, underground inside HDPE ducts. The installation may use air-assisted (air-blown) method, water pressure-floating or manual pulling.

REFERENCE STANDARDS

The offered fiber optic cable complies to the the ITU-T G.652.D, ITU-T G.654.B, ITU-T G.654.C, ITU-T G.655.C, ITU-T G.655.D, ITU-T G.657.A1, IEC 60794-3, TIA/ EIA standards. Fiber type is optional, following to the customer request.

CONSTRUCTIONS

CABLE STRUCTURE

Fully waterblocked

– Each fibers are inserted into thixotropic gel-filled coloured dual – layer thermoplastic (PC-PBT) loose buffer tubes

– Water ingression protection is applied using swellable compound and tape

Dielectric central strength member

– Glass reinforced plastic (GRP/FRP) non-metallic, anti buckling central strength element

SZ-stranded

– Isolates fibers from installation and environmental rigors

– The loose buffer tube and fillers are SZ-stranded around FRP and bound with polyester yarns

Corrugated Steel Tape Armor

– Provides rodent bite protection for direct buried applications

High Density Polyethylene (HDPE) jacket

– Black UV resistant High Density Polyethylene (HDPE) jacket as outer protection

– Good abrasion & scratch resistance

Excellent weathering and UV resistance

PARAMETERS

FIBER PARAMETERS OF SINGLE MODE OPTICAL FIBER :

Reference Standard ITU-T G.652.D ITU-T G.655.C & 655.D ITU-T G.657.A1
Type Single Mode Non-Zero Dispersion Shifted (NZDSF) Single Mode Bending-Loss Insensitive Single Mode
Wavelength (nm) 1310 / 1550 1550 1310 / 1550
Attenuation on Finished Cables (dB/km) 0.35 / 0.20 0.215 0.35 / 0.20
Typical Attenuation (dB/km) 0.35 / 0.19 0.210 0.35 / 0.19
Mode Field Diameter (µm) 9.2 ± 0.4 / 10.4 ± 0.5 9.60 ± 0.4 9.2 ± 0.4 / 10.4 ± 0.5

FIBER PARAMETERS OF MULTIMODE OPTICAL FIBER :

Core / Cladding Diameter (µm) 50/125 62.5/125
Reference Standard ITU-T G.651.1 TIA – EIA – 568 – B.3
Wavelength (nm) 850 / 1300 850 / 1300
Attenuation on Finished Cables (dB/km) 3.0 / 0.8 3.5 / 1.5
Modal Bandwidth – length product for overfilled launch (MHz.km) 500 / 500 160 / 500

Multimode OM3 and OM4 fibers are available upon request.

CABLE PARAMETERS :

ITEM

SPECIFICATION

Fiber Quantity 4 – 30 12 – 60 72 84 – 96 108 – 144 156 – 216 228 – 312
Maximum Fibers per Tube 6 12 12 12 12 12 12
Loose Tube Quantity 5 5 6 8 12 18 26
Number of Active Tubes 1 – 5 1 – 5 6 7 – 8 9 – 12 13 – 18 19 – 26
Cable Dimension Cable Diameter (Nominal) 10.5 mm 11.0 mm 12.5 mm 13.5 mm 16.0 mm 16.5 mm 19.0 mm
Cable Weight (Nominal) 105 kg/km 115 kg/km 145 kg/km 170 kg/km 235 kg/km 250 kg/km 330 kg/km

MECHANICAL CHARACTERISTICS :

ITEM

SPECIFICATION

Operating Tensile Strength (Refer to IEC 60794-1-E1) 2900 N
Crush Strength (Refer to IEC 60794-1-E3) 4500 N/ 100 mm
Impact Strength (Refer to IEC 60794-1-E4) 12 Nm
Kink Strength Radius (Refer to IEC 60794-1-2-E10) 5 x Cable Outside Diameter
Minimum Bending Radius (Refer to IEC 60794-1-E11) 10 x Cable Outside Diameter
Torsion (Refer to IEC 60794-1-E7) 30 twists, 2 direction @ 180˚, Load 250N
Water Ingression Resistance (Refer to IEC 60794-1-F5B) Passed with 1-m cable sample, 24 hours,

1-m water column height pressure

Operating & Storage Temperature Up to 70° C

Technical Specification

Telkom Standard Direct Buried Optical Fiber Cables

GENERAL

The cable is applicable for outdoor, direct burial, inside HDPE ducts, or on cable trays or on cable ladders.

REFERENCE STANDARDS

The offered fiber optic cable complies to the ITU-T G.652.D, ITU-T G.655.C, ITU-T G.655.D, IEC 60794-3, STEL K-016-2009 versi 2.1, TIA/ EIA standards.

CONSTRUCTIONS

CABLE STRUCTURE

Fully waterblocked

– Each fibers are inserted into thixotropic gel-filled coloured dual – layer thermoplastic (PC-PBT) loose buffer tubes

– Water ingression protection is applied using swellable compound and tape

Dielectric central strength member

– Glass reinforced plastic (GRP/FRP) non-metallic, anti buckling central strength element

SZ-stranded

– Isolates fibers from installation and environmental rigors

– The loose buffer tube and fillers are SZ-stranded around FRP and bound with polyester yarns

Double Polymer Coated Aluminium Tape

– Aluminium tape as a mositure barrier

Corrugated Steel Tape Armor

– Provides rodent bite protection for direct buried applications

High Density Polyethylene (HDPE) jacket

– Black UV resistant High Density Polyethylene (HDPE) jacket as outer & inner protection

– Good abrasion & scratch resistance

Excellent weathering and UV resistance

PARAMETERS

FIBER PARAMETERS OF SINGLE MODE OPTICAL FIBER

Reference Standard ITU-T G.652.D ITU-T G.655.C & 655.D ITU-T G.657.A1
Type Single Mode Non-Zero Dispersion Shifted (NZDSF) Single Mode Bending-Loss Insensitive Single Mode
Wavelength (nm) 1310 / 1550 1550 1310 / 1550
Attenuation on Finished Cables (dB/km) 0.35 / 0.20 0.215 0.35 / 0.20
Typical Attenuation (dB/km) 0.35 / 0.19 0.210 0.35 / 0.19
Mode Field Diameter (µm) 9.2 ± 0.4 at 1310 nm  10.4 ± 0.5 at 1550 nm 9.60 ± 0.4 at 1550 nm 9.2 ± 0.4 at 1310 nm 10.4 ± 0.5 at 1550 nm

FIBER PARAMETERS OF MULTIMODE OPTICAL FIBER

Core / Cladding Diameter (µm) 50/125 62.5/125
Reference Standard ITU-T G.651.1 TIA – EIA – 568 – B.3
Wavelength (nm) 850 / 1300 850 / 1300
Attenuation on Finished Cables (dB/km) 3.0 / 0.8 3.5 / 1.5
Modal Bandwidth – length product for overfilled launch (MHz.km) 500 / 500 160 / 500

Multimode OM3 and OM4 fibers are available upon request.

CABLE PARAMETERS

ITEM

SPECIFICATION

Fiber Quantity 4 – 36 24 – 72 60 – 96 120 – 144 120  – 216 240 – 264
Maximum Fibers per Tube 6 12 12 12 12 12
Loose Tube Quantity 6 6 8 12 18 22
Number of Active Tubes 1 – 6 2 – 6 5 – 8 10 – 12 10 – 18 20 – 22
Cable Dimension Diameter (Nominal) 17.0 mm 18.0 mm 20.0 mm 22.5 mm 23.5 mm 25.0 mm
Weight (Nominal) 255 kg/km 285 kg/km 320 kg/km 435 kg/km 450 kg/km 520 kg/km

MECHANICAL CHARACTERISTICS

ITEM

SPECIFICATION

Operating Tensile Strength (Refer to IEC 60794-1-E1) 3000 N
Crush Strength (Refer to IEC 60794-1-E3) 4500 N/ 100 mm
Impact Strength (Refer to IEC 60794-1-E4) 12 Nm
Kink Strength Radius (Refer to IEC 60794-1-2-E10) 5 x Cable Outside Diameter
Minimum Bending Radius (Refer to IEC 60794-1-E11) 10 x Cable Outside Diameter
Torsion (Refer to IEC 60794-1-E7) 30 twists, 2 direction @ 180˚, Load 250N
Water Ingression Resistance (Refer to IEC 60794-1-F5B) Passed with 1-m cable sample, 24 hours,

1-m water column height pressure

Operating & Storage Temperature Up to 70° C