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Branching unit, power supply path-switching method, and optical transmission system

A power supply path and branching technology, applied in the field of optical transmission systems, can solve problems such as large current fluctuations, affecting normal service transmission, and power supply path reconfiguration.

Active Publication Date: 2015-04-08
HUAWEI MARINE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, in the prior art, due to the large fluctuation of the current flowing through the BU, the switching state of the relay in the BU may be changed, resulting in the reconfiguration of the power supply path in the BU, which seriously affects the normal transmission of services

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  • Branching unit, power supply path-switching method, and optical transmission system
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  • Branching unit, power supply path-switching method, and optical transmission system

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions of the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] First, combine figure 1 A branching unit 100 according to an embodiment of the present invention is described.

[0021] The branching unit 100 has a first port, a second port, a third port and a SE (Sea Earth, sea earth) port.

[0022] If the first port is represented by the A port, the second port is represented by the B port, and the third port is represented by the C port, then a current path can be formed between two ports in the A, B and C ports, an...

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Abstract

Provided are a branching unit, a method for switching a power supply route, and an optical transmission system. The branching unit comprises a first port, a second port, a third port, and an SE port. The branching unit comprises a power supply module, a control module, and a switch module. The present invention uses bi-stable relays and switches to control the power supply route switching, so that the power supply route in the branching unit does not undergo unnecessary switchings due to current fluctuation interference, thereby enabling the power supply route in the branching unit to maintain current state with no need for switching, and enhancing the stability and reliability of the power supply route.

Description

technical field [0001] The present invention relates to the field of optical communication, and more particularly, to a branching unit, a method for switching a power supply path and an optical transmission system in the field of optical communication. Background technique [0002] In a submarine optical communication system, generally, a branching unit (Branching Unit, BU) may be used to complete distribution of an optical signal carrying a service to two ports. Early BUs had no electrical characteristics and could only be used to separate optical fibers and wavelengths carrying services. As the network becomes more complex and the need for service recovery and cable breakage maintenance is added, the BU with power switching function, that is, the Power Switching Branching Unit (PSBU), has gradually become the mainstream. When a BU with power switching function is disconnected, some services can be restored by switching the power supply path in the BU; when the broken cabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/25H04L12/10
CPCH04B3/44
Inventor 赵茂孙恺周国耀
Owner HUAWEI MARINE NETWORKS CO LTD
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