Telephone lines are generally divided into 2 cores (2 cores for home wiring use), 4 cores, (4 cores for company or part of the group telephone use), 6 cores (6 cores for digital telephone use).
1. Telephone lines are generally divided into 2 cores, 4 cores, 6 cores. The standard two-pin telephone crystal head is RJ32. They are called line A and line B, and there is no difference between positive and negative poles. As for the four-core wires of the handset, after coming out through a coil or integrated circuit, four wires are needed to the handset, two for the MIC and two for the receiver. Generally buy two core twisted pair wire, conditions can be considered on 4 core.
2. The 2-core is an analog telephone signal (that is, the current local phone use mode), and the 4-core is a digital telephone signal; Home decoration wiring is generally a row of 2 network cables, a network and a telephone (the cost difference is not much). Phone transmission only requires two telephone lines, that is, the middle 2 core, according to the standard wiring sequence, usually using red and green as. Telephone transmission, yellow and black for inverse transmission.
3. Four-core telephone line, mostly used for the current office system line wiring: just like the network cable, eight cores, the actual use of four cores, spare 2 cores; The same is true of four-core telephone lines, with two cores to spare two cores. In modern office communications, many imported communication terminals are 4-core telephone lines, only in the integrated wiring, considering the development of the user 2-5 years to wire, in order to solve the actual needs of users.
Telephone lines are generally divided into 2 cores (2 cores for home wiring use), 4 cores, (4 cores for company or part of the group telephone use), 6 cores (6 cores for digital telephone use).
1. Telephone lines are generally divided into 2 cores, 4 cores, 6 cores. The standard two-pin telephone crystal head is RJ32. They are called line A and line B, and there is no difference between positive and negative poles. As for the four-core wires of the handset, after coming out through a coil or integrated circuit, four wires are needed to the handset, two for the MIC and two for the receiver. Generally buy two core twisted pair wire, conditions can be considered on 4 core.
2. The 2-core is an analog telephone signal (that is, the current local phone use mode), and the 4-core is a digital telephone signal; Home decoration wiring is generally a row of 2 network cables, a network and a telephone (the cost difference is not much). Phone transmission only requires two telephone lines, that is, the middle 2 core, according to the standard wiring sequence, usually using red and green as. Telephone transmission, yellow and black for inverse transmission.
3. Four-core telephone line, mostly used for the current office system line wiring: just like the network cable, eight cores, the actual use of four cores, spare 2 cores; The same is true of four-core telephone lines, with two cores to spare two cores. In modern office communications, many imported communication terminals are 4-core telephone lines, only in the integrated wiring, considering the development of the user 2-5 years to wire, in order to solve the actual needs of users.