Specifications

2009
2010
36
OPTICAL FIBRE CABLES
"TIGHT" optical fibre
For indoors installation
Data transmission optical fibre cables OM1 OM2 OM3 OS1 (multimode and singlemode)
From 4 to 24 fibres - Dielectric reinforcement - LSZH jacket
▼ DESCRIPTION
"Tight" type cables are suited for indoors installation and are available according to colour standards with 900 micron coloured fibre
sheaths. The single tube is composed of a single bundle of fibre strands surrounded by glass fibres to give it traction resistance and re-
sistance against attack by rodents. 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 op-
tical fibres are available in all four standard homologated versions: MultiMode OM1, OM2, OM3, and SingleMode OS1.
▼ CHARACTERISTICS
• Coloured fibres for quick identification
• Rip cord for quick stripping
• Black LSZH jacket for indoors and outdoors installation
• Compact design for installation in restricted space.
▼ APPLICATION
• Suited for laying in indoors ducting,
• 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 5.3 28 660 300 8.0 5.3
8 6.0 37 660 300 9.0 6.0
12 7.1 47 660 300 10.6 7.1
▼ 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 A88617 A88517 – –
8 A88627 A88527 – –
12 A88637 A88537 – –
A Optical fibres with 250 micron coating
and 900 micron PVC tight sheath
B Glass fibres
C LSZH jacket
D Strength member