Low-voltage remote power supply cable for high-speed Ethernet switch

Abstract

The invention discloses a low-voltage remote power supply cable for a high-speed Ethernet switch. The low-voltage remote power supply cable comprises four single-wire copper conductors for transmitting electric energy, wherein the four single-wire copper conductors are stranded into an electroconductive cable core in a star-quad manner; four pairs of stranded wires are uniformly and sequentially arrayed on the periphery of the electroconductive cable core in an anticlockwise manner; the pitches of the first stranded wire pair and the third stranded wire pair are larger than the pitches of the second stranded pair and the fourth stranded wire pair; the first stranded wire pair and the third stranded wire pair are arrayed by being alternated with the second stranded pair and the fourth stranded wire pair; the pitch of the first stranded wire pair is more than the pitch of the third stranded wire pair; and the pitch of the second stranded wire pair is larger than the pitch of the fourth stranded wire pair. According to the low-voltage remote power supply cable disclosed by the invention, on the basis of transmission characteristics of communication cables and the characteristics of power transmission cables, the communication cables and the power transmission cables are guaranteed to be composited and are prevented from mutual interferences at the same time, and communication signals and a DC-48V power supply needed by a building switch are simultaneously transmitted to a broadband box in each building.

Description

technical field [0001] The invention relates to a cable for an Ethernet switch, in particular to a low-voltage remote power supply cable for a high-speed Ethernet switch. Background technique [0002] Most of the existing building switches adopt the power supply method of taking power locally. With the increasingly fierce competition in the telecom transportation business, all telecom operators emphasize branded services and refined operations. The power supply methods of most building switches are no longer suitable for the current competitive situation of telecom services, which affects the service quality of Netcom services. [0003] Specifically, taking electricity locally has the following disadvantages: [0004] ① Supply power from local power users or individuals, and it is difficult to coordinate installation and construction. [0005] Network resources cannot be fully utilized, power supply cannot be self-controlled, passively controlled, and poor reliability. ...

AI Technical Summary

Problems solved by technology

[0004] ① Supply power from local power users or individuals, and it is difficult to coordinate installation and construction

[0005] Network resources cannot be fully utilized, power supply cannot be self-controlled, passively controlled, and poor reliability

[0006] ③The voltage fluctuation range of the power grid is large and unstable, which affects the normal operation of the equipment

[0007] ④ On-site electricity collection usually has high construction and operation costs

[0008] ⑤The power supply in most provinces and cities across the country is tight, resulting in abnormal power supply of equipment

[0009] ⑥Lightning strikes in summer caused a large number of switch failures, and the maintenance volume increased sharply

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