In communication networks, twisted pair is a common transmission medium, which is widely used in the connection between various network devices and terminals. A twisted pair consists of two insulated wires twisted together to reduce the effects of electromagnetic interference and signal attenuation. According to different classification criteria, twisted pair cables can be divided into many types, each with different characteristics and application scenarios.
1. Classification according to transmission quality.
1.Standard twisted pair.
Standard twisted pair cable is the most common type, and is widely used in fields such as ** cables, computer LANs, and general home networks. It has good transmission performance, but the transmission distance is short, usually within 100 meters. The transmission rate of standard twisted pair is low, generally around 10Mbps.
2.Gigabit twisted pair.
A Gigabit twisted pair is a high-performance twisted pair that is used for the connection of high-speed network equipment. It uses a higher wire gauge and better materials to support higher transmission rates and longer transmission distances. The transmission rate of Gigabit twisted pair can reach 1000Mbps, and the transmission distance can reach more than 100 meters.
2. Classification according to the shielding method.
1.Shielded twisted pair.
Shielded twisted pair is a twisted pair with a metal shielding layer, which can effectively reduce the effects of electromagnetic interference and signal attenuation. The transmission rate of shielded twisted pair is high, and it is suitable for occasions with high transmission quality requirements in the most disturbing environment. However, shielded twisted pair cables are more expensive to manufacture and more difficult to maintain.
2.Unshielded twisted pair.
An unshielded twisted pair is a twisted pair without a metal shield, which is relatively low and easy to install and maintain. The unshielded twisted pair cable has a low transmission rate, which is suitable for occasions with low transmission quality requirements in a low-interference environment.
3. Classification according to use.
1.* Twisted pair wire.
A twisted pair is a twisted pair that is specially used for communication, which can transmit multiple signals at the same time. It uses thinner wires and twists more tightly to reduce the effects of electromagnetic interference and signal attenuation. **The transmission rate of twisted pair is low, which is suitable for occasions with low requirements for transmission rate.
2.Computer LAN twisted pair.
Computer LAN twisted pair is a kind of twisted pair specially used for computer LAN connection, which is divided into two types: straight-through and cross-wire. Straight-through wires are used to connect devices such as computers and hubs, and crossover wires are used to connect devices such as hubs and switches. The transmission rate of computer LAN twisted pair is high, which is suitable for occasions with high transmission rate requirements.
To sum up, the classification and characteristics of twisted pair wires have different classification methods and characteristics according to different classification standards. In practical applications, the appropriate twisted pair type should be selected according to the specific needs to meet the requirements of transmission quality and transmission distance.