Optical cross-connect device for metro backbone transport network

Abstract

The invention discloses an optical cross-connection device for a metropolitan backbone transmission network, comprising: a frame body, an optical cable fixing device, a plurality of optical cross-connection subracks, an intelligent fiber core management unit, and a fiber jumper storage unit; In the installation space, optical cable fixing devices, multiple optical cross-connect subracks, fiber core intelligent management units and fiber jumper storage units are installed in each frame; optical cable fixing devices are used to fix external optical cables; The core active connector assembly makes each optical fiber in the external optical cable terminated at the port of the multi-core active connector assembly and has crossover capability; the fiber core intelligent management unit is used to identify the electronic labels at both ends of the jumper fiber to realize Intelligent management of fiber core usage; fiber jumper storage unit, used to store the excess length of the fiber jumper. It can solve the problems existing in the existing ODF equipment, such as small equipment capacity, large number of fiber jumpers in the equipment, weak cross-connection capability of the equipment, and lack of effective management of ODF ports.

Description

Technical field [0001] Embodiments of the present invention relate to the field of transmission and protocols between networks), and specifically, there is a metropolitanular backbone transfer web optical cross-connect device. Background technique [0002] In recent years, with the rapid development of the data business, there is more and more services from the backbone nodes of the urban backbone transfer network. [0003] figure 1 Network structure diagram of a core layer of a backbone transfer network. The number of optical cable cores between the urban backbone nodes is generally relatively large. In the prior art, both the optical cable is at the end of ODF (Optical Distribution Frame, fiber wiring) in the backbone node, and each fiber optic end in the optical cable. On a single core FC / SC connector port of the ODF, the service is connected to the corresponding device port by the port of the ODF. [0004] However, in the above-mentioned prior art has the shortcomings: (1)...

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Problems solved by technology

[0004] But, above-mentioned prior art has following shortcoming: (1) equipment capacity is little: the capacity of common ODF standard rack is generally 576 cores; When connecting a fiber jumper, when the capacity of the ODF exceeds 2 / 3, too many fiber jumpers will appear messy and difficult to straighten out, making it difficult to manage the connection relationship of the fiber core; (3) Lack of effective management of the ODF port : The traditional ODF does not have the network management function, and the use of each port of the ODF can only be recorded manually, which is difficult to dynamically adjust according to the actual use; (4) The cross-connection capability is weak: when two different Neighboring nodes (such as figure 1 When there is an optical fiber direct connection service requirement between nodes A and P), it must pass through an intermediate node (such as figure 1 Node B or node O) ODF fiber jumper can be realized; if there is a 48-core direct connection service between A and P, 48 single-core jumper fibers must be connected through node B or node O

Due to the weak management ability of traditional ODF on ports and fiber jumpers, it is difficult to adapt to a large number of direct connections between fiber cores across nodes

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