The bandwidth of optical fiber is larger than that of ordinary network cable, and it is much better than network cable in terms of network speed. Therefore, fiber to the home is also a choice of many people. However, although fiber to the home is excellent, it is not so popular in many home groups. Most home networks use network cables. The question is, why is this？

Cost

First of all, the first reason is very simple, the cost between optical fiber and network cable. Optical fiber sounds expensive, but in fact it is not. However, optical fiber networks are not only as simple as intermediate connections requiring optical fibers, but more importantly, all optical fibers used must be optical interface cards. Even today, when the network is so developed, the price of optical interface cards in pure optical fiber network LANs is still much higher than that of ordinary network cards.Secondly, because home routers and home switches with optical ports are not popular, the essential equipment for home fiber optic networking is fiber optic transceivers. To fiber to the desktop network, every device from fiber to the home to the desktop network must have an optical fiber port. Optical modems, routers, and computer network cards must have optical ports. In this way, the front-end hardware alone will follow Not up. And in the home network, more people usually use it only to play games, entertainment, drama, or office (this refers to most people, not all people~), so, all the use of optical fiber can be said to be "not necessary"~

Optical fiber wiring is more cumbersome

In the process of cabling construction, due to space constraints, the cabling will inevitably encounter places where corners need to be bent. The biggest difference between optical fibers and network cables is that optical fibers cannot be bent at right angles. The reason is that on the one hand, it is necessary to avoid breaking the glass core in the optical fiber. On the other hand, although the optical fiber is an optical signal, its loss is less than that of a network cable. However, due to the right-angle bending, the light attenuation will be too large, so the transmission effect will be affected. influences. Although there are some sheathed optical fibers that have better bending resistance, they only have a smaller bending diameter. Optical fiber cabling is still much higher than network cables.

Fiber maintenance is inconvenient

In combination with the previous popularization, the network cable is generally copper twisted pair, which can be kneaded at will, and it is very strong and durable. The difference is that the material of the optical fiber is glass filament, which is fragile and easy to break, and after the break, the welding requires specialized technicians and machines to complete.

Network cable is easier to meet the needs of the public

At present, ordinary network cables are enough to meet everyone's needs. Take the most popular Gigabit network at the moment, choosing a six-category network cable is enough (five categories can also be satisfied~). The transmission frequency is 200-250MHz, and the maximum transmission speed can reach 1000Mbps.