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General proposal

about Fibre Optic

Fibre Optic Cables for 10 Gigabit Ethernet

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Fibre Optic Cables for 10 Gigabit Ethernet

1- MULTIMODE FIBRES SPECIFICATIONS.

1.1 Application: 10 Gigabit Ethernet up to 65 m.:

Fibre type: MM 62,5/125 (Acc. to ISO/IEC 11801 ,CEI 60793-2, EN 50173) Maximum attenuations: 3,2 dB/Km (850 nm); 1,0 dB (1300 nm) Minimum Bandwidth: 200 MHz x Km a 850 nm; 500 MHz x Km. at 1300 nm Numerical Aperture: 0,275 +/- 0,015 Core diameter: 62,5 +/-3 m Core non-circularity:

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3- CABLES DESCRIPTION.

3-1 CABLES FOR OUTDOORS

3.1.1: FIBRE OPTIC CABLE TYPE DPDP (OUTDOOR - DIELECTRIC)

Outdoor cable, armoured, dielectric, moisture proof, rigid element free, composed by n optical fibres (fromany types above mentioned), with Loose protection. Active and, if necessary, passive tubes, both PBT;cabled on a central filler element. Moisture protection (hydrofuge gel). With inner jacket, WB fibreglassstrength elements, fibreglass braid armour and PEMD or PELD outer jacket.

1- Central element 2- Optical fibres , outer diameter 250 m. Identified by colours code 3- Loose tubes, jelly filled 4- WB fibres (Reinforced fibreglass) 5- Inner jacket 6- Dielectric armour 7- PE outer jacketOperating temperature range: -20 C to + 70 C. Bending radius: 20 x outer diameter

FIBRE OPTIC CABLE TYPE DPMP (OUTDOOR METALLIC ARMOUR)

Outdoor cable, armoured, moisture proof, rigid elements free, composed by n optical fibres (from anytypes above mentioned), with Loose tube protection. Active and, if necessary, passive tubes, both PBT;cabled on a central filler element. Moisture protection (hydrofuge gel). With fibreglass strength members, PEinner jacket, steel wire braid armour and PEMD or PELD outer jacket.

1- Central element

2- Optical fibres, outer diameter 250m. Identified by colours code 3- Loose tube, jelly filled 4- WB fibres (reinforced fibreglass) 5- Inner jacket 6-Steel wire braid armour

7- PE outer jacketOperating temperature range: -20 C to + 70 C. Bending radius: 10 x outer diameter

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3.2 CABLES FOR INSIDE BUILDINGS (LSZH)

3.2.1 FIBRE OPTIC CABLE TYPE CDI

Distribution cable for indoor, moisture proof, flexible, dielectric, composed by "n" tight-buffered optical fibres(from any types above mentioned) with individual coating at 900 um, gel free, aramid strength member and

LSZH outer jacket.

1-2 Tight buffered optical fibres (Outer diameter 900 m,) easy to strip, and to identify using colours code. 3- Aramid yarns strength members 4- Outer jacketOperating temperature range: -20 C to + 70 C. Bending radius: 10 x outer diameter