Up to 12 fibers are there in each jelly filled plastic compound tube, which are stranded around a FRP strength member, water blocking tape and covered by a PE outer sheath. The cable core is fully dielectric so gives lightning protection. The upper part of figure 8 has seven number messenger wires made of stranded galvanized steel wire with PE outer sheath.They have small diameter, light weight, good bend resistance performance. The messenger cables support the fiber cables to withstand the tensile force for aerial installations. The PE outer sheath gives excellent environment and ultraviolet protection to the cable.

Mechanical & Environmental Characteristics

 
Optical Characteristics 
Of all the differences between multimode & singlemode fiber, the most fundamental differences are the size of the fiber’s core and the associated attenuation or loss and bandwidth of the fiber. The smaller the core diameter, the higher the fiber’s bandwidth and the lower the attenuation (loss in dB per kilometer). The fiber’s attenuation and bandwidth are also dependent on wavelength. 

Singlemode was for high-speed long distance transmission and multimode (in either the 50 µm or 62.5 µm core diameters) was used for lower speed short distance applications. Multimode 50 µm fiber had a lower cost and higher modal bandwidth than multimode 62.5 µm core fiber. Bandwidth is a measurement of the data carrying capacity of the fiber. A higher bandwidth fiber carries more data. See table below.

ANSI/TIA/EIA-598-B Standard Fiber Color Code

Color Code


Ordering Information
Part Number： OC-XX-ABCDCL
 
Ordering Guide

Ordering Sample