We often use optical cables and optical fibers in daily life, but most people do not know much about them, so what is the difference between optical cables and optical fibers?
First, what is the difference between optical cable and optical fiber
1, the concept is different, the optical fiber is made of pure quartz as a material, and through a special process, the glass tube in the middle of the medium, the optical cable is made of optical fiber, plastic maintenance sleeve, plastic skin.
2, the structure is different, the optical fiber is two layers, and the center of the structure is the glass with excellent refractive index.
3, the transmission efficiency is different, the optical fiber propagation will consume 0.2 decibels per kilometer, the cable requires the corresponding number of optical fiber through the corresponding path made of cable core, it is used to transmit optical signals a kind of communication road, transmission distance is long, small volume, and weight is also very low.
Second, what is the point of attention to buy optical cable
1, from the cable skin consideration, it is necessary to ensure that its skin quality standards, normal high-quality cable outer layer is made of PVC, looks smooth and shiny, and excellent flexibility, but also can play a flame retardant effect.
If the outer layer of the cable is poor in luster, and it is easy to stick to dust, it indicates that it is a poor quality cable, and it is not recommended to buy, otherwise it will have the problem of cracking and water seepage after a period of time.
2, from the internal fiber material consideration, high-quality fiber is a grade core, while the poor quality is C, D grade core, this kind of cable transmission distance is very short, and can not docking with the pigtail.
3, in the purchase of optical cable, it is necessary to ensure that its steel wire has passed special treatment, so as to ensure that it will not rust easily, and the strength of the standard, and inferior steel wire will usually take iron wire or aluminum wire replacement, strength is not up to standard, a pinch will bend, and a long time will rust disconnected.
The above is the difference between optical cable and optical fiber, from the above article, we can see that we must figure out the difference between the two in practical application, and then use the appropriate place according to their characteristics, so as to give full play to the maximum efficiency, avoid unnecessary waste, and hope to help you.
