1。 Regardless of the subsequent upgrade, directly use Category 6 cable (provided that Category 6 cable is not cheap, even if it is cheap, it should be 1 or above). Only people who don't understand can use it, and so can Otawa upstairs.
2。 Consider upgrading directly buried optical fiber. The optical fiber on the market is a few cents a meter, and the optical fiber with two steel wires in the middle is only a few cents a meter on average. You can compare the price with the network cable to see who has a high cost performance. Don't talk nonsense if you don't understand. Those businesses only know how to fool retail investors into buying high-priced things. I'm sorry to meet me.
It is not easy to break the optical fiber when using indoor leather fiber double-sided steel wire. Don't use soft yellow leather fiber, because there is only one fiber in it, and it will break when pulled. Only applicable to equipment termination and necessary steel wires buried in the wall. You really don't know what optical fiber is used in your junction box. You must understand the copying operation.
It is safest to use this one with two cores. I'm buying a pair of optical fiber transceivers for tens of dollars.
There is no upper limit for optical fiber transmission. In the future, we only need to upgrade the optical fiber transceiver and replace the 100M transceiver with a gigabit or 100M transceiver. This is the cheapest scheme, and it is also a one-time layout for permanent use. Even if the network is upgraded to hundreds of thousands of megabytes after 20 years, we don't need to change the line, just change the bandwidth of the transceiver. To tell the truth, the transceiver of 100M is directly integrated into the router, and we don't need to buy it ourselves. Even the computer port will directly replace the network card with the optical fiber port, which is something that the birds upstairs don't want.
Schematic diagram
The above table is the wholesale price. If it is estimated to be more expensive to buy in Taobao retail, it will hurt to compare it. In terms of service life, optical fiber can be used once at home.
Ordinary plastics will age after 20 years. Even if the plastic turns into powder after 30 years of aging, the copper wires inside will be short-circuited, and the eight copper wires inside the network cable will not be short-circuited for 30 years, so you can use 10 years and 40 years to see the results. The merchants upstairs will say how long your network cable can last without aging. It is estimated that the house will be demolished and rewired in 30-40 years, so don't worry about it. The house will be renovated every 20-30 years on average, so don't.
The optical fiber has been aging for 40 years, and there is a very thin glass fiber and two reinforced steel wires inside. Look at how the optical fiber is short-circuited. Even if water enters the optical fiber, it will transmit signals.