JPH08146238A - Module for termination of optical fiber cable - Google Patents

Abstract

PURPOSE: To provide a module for terminal of an optical fiber cable integrated with a single core connector array part and a module body while assuring a function to take out the juncture housed in the module. CONSTITUTION: This module for termination of the optical fiber cable has the single core connector array part 1, an optical multiplexing/demultiplexing part 2 which consists of coated optical fiber ribbons 7 and optical waveguides, an optical fiber fixing part 3, a juncture 4 which has a connector connected to the optical fiber cable and an optical fiber cord connected to optical fiber cable testers, an optical fiber cord part 5 which is reinforced by a tube so as to be deformed at the time of taking out the juncture 4 and has a length necessary for drawing out and a case part which houses or fixes these constituting parts and has a structure to allow the drawing out of only the juncture. The case part has a case part body 9 and a case part separating part 10 and has a regulating part 11 for smoothly moving the optical fiber cord part 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical component for multiplexing and demultiplexing optical signals for testing and monitoring an optical fiber cable, and more particularly to a module for terminating an optical fiber cable.

[0002]

2. Description of the Related Art FIG. 3 is a block diagram of a conventional optical fiber cable terminating module. 1 is a single-core connector row portion, 2
Is an optical multiplexer / demultiplexer, 4 is a connecting portion, 7 is an optical fiber tape core wire, 8 is an optical fiber tape core wire, 12 is an optical fiber tape cord, 13 is an optical fiber cord, and 14 is an internal optical multiplexer / demultiplexer portion. And an optical fiber cable terminating module main body having a section, a separating section for separating the optical fiber tape cord into the optical fiber cord, and a separating section for binding the separating section to a part of the storage rack. It is a fixed part. As shown in FIG. 3, conventionally, the single-core connector row portion 1 and the optical fiber cable terminating module main body 14 are separated from each other, and the optical fiber tape cord 12 and the optical fiber tape core wire are converted into an optical fiber core wire. The connection was made by the separating section 15 and the optical fiber cord 13 for separation. The optical fiber tape cord 12 is used to remove the connecting portion 4 housed in the module body 14 for terminating the optical fiber cable.
It has an extra length for pulling out the module main body 14 for terminating the optical fiber cable. In this structure, when the optical fiber cable terminating module body 14 is pulled out, in order to avoid applying an excessive force to the optical fiber core wire in the vicinity of the single-fiber connector row portion 1, the separating portion 15 is formed as a part of the storage shelf. It is necessary to fix it by binding it to a certain separation part fixing part 16. Therefore, this is a cause of a decrease in workability when storing many hundreds of optical fiber cable terminating modules in the storage rack. Further, in order to secure a working space when the optical fiber cable terminating module is stored in the storage shelf, it is necessary to make a gap between the optical fiber cable terminating modules, which is a cause of limiting the mounting density. .

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the work efficiency when accommodating a large number of hundreds of fiber optic cable terminating modules in a storage rack, and to form an optical fiber cable into the storage rack. For the purpose of improving the mounting density of the end module, more specifically, the single-fiber connector row part and the optical fiber cable while maintaining the function of taking out the connection part housed in the optical fiber cable termination module. An object of the present invention is to provide an optical fiber cable terminating module which is integrated with the terminating module body.

[0004]

SUMMARY OF THE INVENTION The present invention provides a single-fiber connector row portion of an optical fiber cable terminating module and an optical fiber connector while maintaining the function of taking out a connection portion accommodated in the optical fiber cable terminating module. The main feature is to integrate the fiber cable termination module body. The conventional technique is to change the securing of the extra length for taking out the connection part from between the single-fiber connector row part and the optical fiber cable termination module main body to between the optical fiber fixing part and the connection part. The difference is that the conventional functions are secured and integrated.

That is, the module for terminating an optical fiber cable according to the first solution of the present invention comprises a single-core connector row portion in which a plurality of single-core connectors capable of connecting optical fiber cores one by one are arranged. An optical multiplexing / demultiplexing unit including an optical fiber for the core and an optical fiber ribbon which is formed by arranging and integrating a plurality of optical fibers in a tape shape and an optical waveguide for multiplexing and demultiplexing an optical signal, and the optical fiber ribbon and the optical fiber. An optical fiber fixing part for fixing a reinforcing tube for increasing the mechanical strength of the fiber tape core wire, and a connection part having a connector for connecting with an optical fiber cable and an optical fiber cord connected to an optical fiber cable tester. And a tube for enhancing the mechanical strength of the optical fiber cable core so that it can be deformed when the connection part is taken out, and An optical fiber cord portion having a length necessary for holding the component portion, and a case portion having a structure capable of housing or fixing the constituent portion and pulling out only the connecting portion. To do.

An optical fiber cable terminating module according to a second solving means of the present invention is the optical fiber cable terminating module according to the first solving means, wherein the single-core connector row portion is fixed to the wall surface of the case portion, A case body that fixes the demultiplexing unit and the optical fiber fixing unit inside the case unit and that can store the optical fiber cord in a deformable state, and a case unit separating unit that stores the connection unit and can be separated from the case unit body. It is characterized by having a case part consisting of.

[0007]

In the storage means for storing the module for terminating the optical fiber cable, the single-fiber connector row portion and the main body of the module for terminating the optical fiber cable are integrated, and the conventional work of binding the separating portion is omitted. . On the other hand, in the means for taking out the connecting portion, the securing of the extra length for taking out the connecting portion is changed from between the single-fiber connector row portion and the optical fiber cable termination module main body to between the optical fiber fixing portion and the connecting portion. It is realized by doing. Therefore, it is possible to secure the function of taking out the connection portion, which is the object of the present invention, and improve the workability when housing many hundreds of optical fiber cable termination modules in the storage shelf.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic configuration diagram illustrating an optical fiber cable terminating module according to an embodiment of the present invention, (A) is a side view and (B) is a top view. 1 is a single-core connector row portion, 2 is an optical multiplexing / demultiplexing portion, 3 is an optical fiber fixing portion, 4 is a connecting portion, 5 is an optical fiber cord portion, 6 is an optical fiber core wire, and 7 and 8 are optical fiber tape core wires. , 9 is a case body, 10 is a case separating section, and 11 is a rearranging section.
The single-core connector row portion 1 is formed by arranging a plurality of single-core connectors capable of connecting the optical fiber core wires 6 one by one. The single-core connector row portion 1 is an optical multiplexer / demultiplexer including a single-core optical fiber 6 and an optical fiber tape core wire 7 in which a plurality of optical fibers are arranged in a tape and integrated, and an optical waveguide for multiplexing / demultiplexing an optical signal. Connect to the wave unit 2. The optical fiber tape core wire 7 from the optical multiplexer / demultiplexer 2 serves to increase the mechanical strength of the optical fiber tape core wire in the optical fiber fixing portion 3 (not shown).
It is fixed together with the reinforcing tube. Optical fiber fixing part 3
Is connected to the connecting portion 4 via the optical fiber cord portion 5.
The connecting portion 4 has an optical fiber cable (not shown) and a connector for connecting to the optical fiber cable and an optical fiber cord connected to an optical fiber cable tester (not shown). The optical fiber cord portion 5 is reinforced by a tube for enhancing the mechanical strength of the optical fiber ribbon so that the optical fiber cord can be deformed when the connection portion is taken out, and has a length necessary for pulling it out. It is a thing. The above-mentioned optical fiber cable is connected to the connecting portion 4 through the optical fiber ribbon 8. These components are housed in the case. The case portion includes a case portion main body 9 and a case portion separating portion 10. That is, the single-core connector row portion 1 is fixed to the wall surface of the case portion, and the optical multiplexer / demultiplexer portion 2
The optical fiber fixing portion 3 is fixed inside the case portion, and the optical fiber cord portion is housed in the case portion main body 9 in a deformable state. The connection part 4 is housed in a case part separation part 10 that can be separated from the case part body 9. When the connection portion 4 is taken out and accommodated, an arrangement portion 11 is provided so that the optical fiber cord portion 5 accommodated in the case portion main body 9 can move smoothly. 2 is a partial configuration diagram showing the flow of the optical multiplexer / demultiplexer 2, the optical fiber fixing portion 3, and the optical fiber core wire 6. In the figure, 21 is an optical waveguide on the side of a transmission device through which communication light passes, 22 is an optical waveguide through which light from a pulse tester or various test maintenance light sources passes, 23 is an optical waveguide on the optical cable side through which communication light passes, and 24 is communication light. An optical waveguide for guiding a part of the above to the light receiving portion of the tester, and an optical waveguide type coupler 25 for multiplexing / demultiplexing the communication light and the test light.

With such a structure, the optical fiber cable terminating module can be stored in the storage shelf by inserting the entire case portion, and the case portion separating portion 10 is separated from the case portion main body 9. This makes it possible to take out the connecting portion. The effect is that
As compared with the conventional technique, there is an improvement that the workability is improved when a large number of hundreds of fiber optic cable terminating modules are stored in a storage rack. Further, conventionally, the mounting density of the module for terminating the optical fiber cable on the storage shelf is limited due to the deterioration of workability, and a gap of 1.5 mm is required between the modules for terminating the optical fiber cable. But,
Due to the improved workability due to the integration of the structure, it was possible to store without gaps, and the packaging density of the module for terminating the optical fiber cable on the storage shelf was also improved.

[0011]

As described above, the extra length for taking out the connecting portion is secured between the single fiber connector row portion and the optical fiber cable terminating module main body between the optical fiber fixing portion and the connecting portion. The function to take out the connection part is secured by changing to the above, and the work when storing the module for terminating the optical fiber cable is improved by integrating the single fiber connector row part and the main body of the module for terminating the optical fiber cable. At the same time, there is an effect of improving the mounting density of the module for terminating the optical fiber cable on the storage shelf.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an optical fiber cable terminating module of the present invention, (A) is a side view, and (B) is a top view.

FIG. 2 is a partial configuration diagram showing flows of an optical multiplexing / demultiplexing unit, an optical fiber fixing unit, and an optical fiber core wire.

FIG. 3 is a schematic configuration diagram of a conventional optical fiber cable terminating module.

[Explanation of symbols] 1 single-core connector row 2 optical multiplexing / demultiplexing section 3 optical fiber fixing section 4 connecting section 5 optical fiber code section 6 optical fiber core wire 7 optical fiber tape core wire 8 optical fiber tape core wire 9 case body 10 Case Separation Part 11 Organizing Part 12 Optical Fiber Tape Cord 13 Optical Fiber Code 14 Optical Fiber Cable Termination Module Main Body 15 Separation Part 16 Separation Part Fixing Part 21 Optical Waveguide on Transmission Equipment Side through which Communication Light Passes 22 Pulse Tester and Optical waveguide through which light from various light sources for test maintenance passes 23 Optical waveguide on optical cable side through which communication light passes 24 Optical waveguide for guiding a part of communication light to the light receiving part of the tester 25 Multiplexing and demultiplexing communication light and test light Optical waveguide coupler for

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Naoyuki Atobe 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (2)

[Claims] 1. A single-core connector row portion in which a plurality of single-core connectors capable of connecting optical fiber cores one by one are arranged, and a single-core optical fiber and a plurality of optical fibers arranged in a tape form and integrated with each other. To fix the optical multiplexer / demultiplexer consisting of the fiber tape core wire and the optical waveguide for multiplexing / demultiplexing the optical signal, and the optical fiber tape core wire and the reinforcing tube for increasing the mechanical strength of the optical fiber tape core wire. Of the optical fiber fixing portion, a connecting portion having a connector for connecting the optical fiber cable and an optical fiber cord connected to the optical fiber cable tester, and the optical fiber cable core wire so that it can be deformed when the connecting portion is taken out. An optical fiber cord portion reinforced by a tube for increasing mechanical strength and having a length necessary for pulling out, and the above-mentioned constituent portion are housed or fixed. And a case part having a structure in which only the connection part can be pulled out. 2. A case main body for fixing a single-core connector row part to a wall surface of a case part, fixing an optical multiplexing / demultiplexing part and an optical fiber fixing part in the case part, and accommodating an optical fiber cord part in a deformable state. The module for terminating an optical fiber cable according to claim 1, further comprising: a case portion including a connecting portion and a case portion separating portion that can be separated from the case portion main body.