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This article is about the difference between adsl broadband and fiber optic broadband. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The difference between adsl broadband and optical fiber broadband: 1. Copper wire ADSL is a kind of DSL technology, optical fiber broadband FTTH is also a kind of asymmetric digital line; 2. ADSL is telephone line into home, optical fiber broadband is optical fiber line into home.

The difference between adsl broadband and fiber optic broadband:

1. Different media. Copper wire ADSL is a kind of DSL technology, is a kind of asymmetric digital subscriber line, its carrier is telephone line. Optical fiber broadband FTTH is also a kind of asymmetric digital line, but the transmission medium is optical fiber. This is the most fundamental difference between the two.

2. The transmission rate is different. ADSL in DSL technology can theoretically provide 1m uplink and 8m downlink transmission. In practice, due to the loss of telephone lines and the increase of distance from the office, ADSL usually has the highest downlink rate of 4m. Other higher-speed transmission technologies such as ADSL2+ and VDSL are rarely used in daily life, and will not be mentioned in this article. Compared with ADSL, optical fiber has almost no bottleneck of downlink bandwidth, and the uplink bandwidth is almost the same as ADSL. Theoretically, the G-port bandwidth can be supported under the second-order optical division.

3. The transmission distance is different. The electrical signal transmitted on copper wire is more stable and farther than the optical signal transmitted on glass fiber or quartz fiber. At present, the mainstream EPON mode optical fiber can achieve thousands of kilometers of micro-attenuation, which can not be achieved by copper wire ADSL.

4. ADSL is the telephone line into the home, and the optical fiber broadband is the optical fiber line. The difference between copper wire ADSL and optical fiber broadband is roughly like this. In particular, there is a difference between FTTH (optical fiber to the home) and FTTB+LAN (optical fiber to the building, network cable to the home), which cannot be confused. FTTB cannot be described as optical fiber access in a strict sense, which we will discuss in detail in later articles.

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