Specifications

2009
2010
34
OPTICAL FIBRE CABLES
"LOOSE" optical fibre
For indoors/outdoors installation
Data transmission optical fibre cables OM1 OM2 OM3 OS1 (multimode and singlemode)
From 4 to 24 fibres - Dielectric reinforcement - LSZH external sheath
62.5/125 OM1, 50/125 OM2, 50/125 OM3, 9/125 OS1
▼ DESCRIPTION
LOOSE type cables are suited for both indoors and outdoors installation thanks to their robust, simple construction. They are composed
of a single plastic tube at the centre which contains the robust fibres immersed in a gel for greater mechanical protection. The fibres
are covered with a 250 micron acrylate to make them easier to handle. The tube is itself surrounded by glass fibres to give it traction
resistance, resistance against attack by rodents and protection against dampness. The entire assembly is enclosed in a black sheath
suited to outdoors installation in a low smoke zero halogen material (LSZH). Furthermore, the sheath complies with IEC regulations
governing flame and fire performance. The optical fibres are available in all four standard homologated versions: MultiMode OM1,
OM2, OM3, and SingleMode OS1.
▼ CHARACTERISTICS
• Glass fibre protection against rodent attack and damp
• Coloured fibres for quick identification
• Rip cord for quick stripping
• LSZH sheath for indoors installation
• Black sheath colour for UV resistance in outdoors installations
• 1600 N traction resistance.
▼ APPLICATION
• Suited for installation in indoors and outdoors cable ducts and overhead supports.
• Suited for use on campus backbones, building backbones, horizontal cabling
• Suited for high density sites and fusion splicing
• Compact structure, suited for installation in limited areas such as duct pipes.
▼ COLOUR CODE
▼ PHYSICAL SPECIFICATIONS
Physical characteristics Traction resistance Bending radius
Number Cable diameter Cable weight Brief traction Prolonged traction Bending radius during Bending radius when
of fibres (mm) (kg/km) resistance (N) resistance (N) installation (cm) installed (cm)
4 7.6 60 1600 800 20 10
6 7.6 60 1600 800 20 10
8 7.6 60 1600 800 20 10
12 7.6 60 1600 800 20 10
24 7.6 60 1600 800 20 10
▼ OPTICAL SPECIFICATIONS
OM1 OM2 OM3 OS1
62.5/125 microns 50/125 microns 50/125 microns 9/125 microns
(850/1300) (850/1300) (850/1300) (1310/1550)
Attenuation (dB/Km) 2.8/0.8 2.8/0.8 2.7/0.7 0.38/0.24
Minimum bandwidth (MHz/Km) 200/500 500/500 1500/1500 –
Primary coating dia. (micron) 250 250 250 250
▼ SPECIFICATIONS OF USE
• Storage temperature: - 40° to + 75°C • Fire performance: LSZH indoors/outdoors
• Installation temperature: - 20° to + 70°C • Fire resistance: IEC 60332-1
• Operating temperature: - 20° to + 70°C
■ Codes and structure
N° Fibres Multimode OM1 Multimode OM2 Multimode OM3 Singlemode OS1
62.5/125 50/125 50/125 9/125
4 A88107 A88007 A88457 A88207
6 A88117 A88017 A88467 A88217
8 A88127 A88027 A88477 A88227
12 A88147 A88047 A88487 A88247
2x12 (24) A88157 A88057 A88497 A88257
1x24 A88177 A88077 A88445 A88277
A Optical fibres with 250 micron coating
B Buffer gel
C Plastic monotube
D Glass fibre strands
E Strength member
F Jacket