KR100582803B1 - Wiring system for optical access network - Google Patents

Abstract

The present invention relates to an premises trunk line extending from a premises communication room of a multi-family house or a building to an equipment room in a building, and an optical subscriber network wiring system constructed in a building trunk line extending from the equipment room to each generation terminal box. An optical fiber tube cable having at least one installation tube installed in the system and the building trunk system; And at least one optical fiber unit which is inserted into the installation tube by pneumatic and is substantially continuously installed from the premises communication room to the generation terminal box.

According to the present invention, when constructing an optical subscriber network, an optical cable can be continuously installed without a connection point between optical fibers.

Light Subscriber Network, Trunk System, Building Trunk System, ABF, Pneumatic Tube

Description

Wiring system for optical access network

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to

1 is a block diagram of an optical subscriber network wiring system according to the prior art.

2 is a configuration diagram for termination of the optical fiber cable in FIG.

3 is a block diagram of an optical subscriber network wiring system according to a preferred embodiment of the present invention.

4 is a cross-sectional view illustrating a configuration of an optical fiber tube cable in FIG. 3.

5 is a block diagram of a tube patch panel in FIG.

<Description of main reference numerals in the drawings>

10 ... Communication room 11 ... Light distribution

15 ... Building equipment room 19 ... Generation terminal box

20.Light exit 100a ... Fiber optic unit

100b ... Laving tube 100e ... Lip cord

104 ... Tube connector 105 ... Tube guide

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical subscriber network wiring system, and more particularly, to an optical subscriber network wiring system that can continuously install an optical cable along an premises trunk system and a building trunk system of an apartment house or a building without a connection point.

In order to build an optical subscriber network for various apartments or buildings, a cable wiring process is provided by distributing and installing optical cables from the communication service center or communication room (hereinafter referred to as the `` communication room '') in the premises to the optical outlet of each household terminal box. It is required.

Figure 1 schematically shows the configuration of a conventional optical subscriber network wiring system according to this process.

Referring to FIG. 1, an premises trunk line optical cable 14 is installed in a cavity 13 of a premises trunk line 12 extending from a premises communication room 10 to an premises equipment room 15, and the premises equipment room ( The building trunk line optical cable 18 is installed in the common port 17 of the building trunk line system (including the horizontal trunk line system) developed from 15 to the light outlet 20 of each generation terminal box 19. In addition, the building equipment room 15 is provided with a building terminal box 16 for terminating the premises trunk line optical cable 14 introduced from the premises communication room 10 and connecting the premises trunk line optical cable 18. do.

According to the conventional wiring system, the premises trunk line optical cable 14 introduced from the light distribution box 11 of the premises communication room 10 to the premises equipment room 15 through the premises trunk line 12 is described above. The building terminal box 16 is connected, switched, and distributed with the building trunk line optical cable 18 to the light outlet 20 of the household terminal box 19. At this time, for the connection between the optical cables, conventional field assembly type optical connector, fusion splicing, mechanical optical connector and the like are widely used.

2 shows a general configuration of the building terminal box 16 in more detail. Referring to the drawings, the building terminal box 16 has an inlet mandrel 16a and an outlet mandrel 16b for surplus filtering of the inlet premises optical fiber 14 and the premises trunk fiber optic cable An optical adapter 16c for mutually coupling and fixing the field-assembled optical connector 16d and the field-assembled optical connector 16d on both sides, respectively, which are connected to the end of the 14 and the end of the building trunk line optical cable 18, respectively. Is provided.

However, in the related art, since the entire wiring system is constructed by interconnecting the ends of different optical cables, there is a problem of occurrence of optical loss and increase in construction cost, and the volume of the building terminal box 16 is increased when considering the optical cable lengthening process. There is a vulnerability that requires a large area of equipment because it grows considerably.

The present invention has been made to solve the above problems, the continuous installation of the optical cable along the premises trunk and building trunk of the apartment or building, the connection of the optical cable from the premises communication room to the light outlet of each generation terminal box It is an object of the present invention to provide an optical subscriber network wiring system for wiring.

In order to achieve the above object, the present invention provides an premises trunk line extending from a premises communication room of a multi-family house or a building to an equipment room in a building, and an optical subscriber network wiring constructed in a building trunk line extending from the equipment room to each generation terminal box. A system, comprising: an optical fiber tube cable having at least one installation tube embedded in the premises trunk and building trunk lines; And at least one optical fiber unit which is inserted into the installation tube by pneumatic and is substantially continuously installed from the premises communication room to the generation terminal box.

Preferably, the present invention includes a panel body installed at one side of the internal communication room and the equipment room and having an end of the optical fiber tube cable inserted therein; A tube connector coupled to a mounting plate fixed on the panel body and having an input side connector and an output side connector communicating with each other; And a tube guide panel fixed to the panel body corresponding to the tube connector. The tube patch panel is further provided, and the installation tube exposed from the optical fiber tube cable is inserted into and connected to the input and output side connectors of the tube connector. do.

Additionally, the present invention may further include a lip cord inserted into the optical fiber tube cable to facilitate stripping.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

3 is a block diagram of an optical subscriber network wiring system according to a preferred embodiment of the present invention.

Referring to FIG. 3, the present invention provides an optical fiber tube cable 100 installed in a premises trunk joint cavity 13 and a building trunk joint cavity 17, and an optical fiber inserted into the optical fiber tube cable 100 by pneumatic pressure. Unit 100a. Preferably, the building equipment room 15 may be further provided with a tube patch panel 101 for mutually coupling the ends of the optical fiber tube cable 100 of both cavities (13, 17).

 The optical fiber tube cable 100 in which the installation tube (refer to 100b in FIG. 4) is installed is passed from the optical distribution box 11 of the communication room 10 through the internal trunk line cavity 13 to the building equipment room 15. ) Is inserted into the tube patch panel 101 in the c), and is installed to be introduced into the tube patch panel 101 from each generation terminal box 19 through the building trunk joint cavity 17 so that both cables are mutually coupled to each other. Thus, the installation tube 100b is continuously communicated from the premises communication room 10 to the light outlet 20 of each generation terminal box 19.

4 is a view showing a preferred configuration of the optical fiber tube cable 100, a double sheath (100c, 100d) for protecting the optical fiber, and stripping rip cord for the selective removal of the sheath (100c, 100d) ( 100e) and a structure in which a plurality of installation tubes 100b are assembled. Here, as the installation tube 100b, it is preferable that a conventional pneumatic installation tube composed of a material having a smooth inner surface thereof is used to minimize friction during installation.

The optical fiber unit 100a is inserted into the installation tube 100b by pneumatic pressure provided from the outside. As the optical fiber unit 100a, it is preferable to use an optical fiber unit for pneumatic laying, which generally includes an optical fiber core wire of 1 to 12 cores, commonly known as ABF (Air Blown Fiber).

Preferably, in the premises communication room 10 and the building equipment room 15, the installation tube 100b drawn in from the premises trunk joint cavity 13 and the building trunk joint cavity 17 before the optical fiber unit 100a is placed. The tube patch panel 101 may be further provided to conveniently interconnect (). The tube patch panel 101 may be fixed to a predetermined rack or wall in the communication room 10 and the building equipment room 15.

5 shows a schematic configuration of the tube patch panel 101. As shown in the drawing, the tube patch panel 101 has a panel body 102 on which a mounting plate 103 is fixed, a plurality of tube connectors 104 coupled to the mounting plate 103, and the tube connector. Corresponding to 104 is provided with a tube guide 105 fixed on the panel body 102 to support the installation tube (100b).

The above-described optical fiber tube cable 100 is inserted into and fixed to the panel body 102 and the end of the installation tube 100b exposed from the optical fiber tube cable 100 through stripping is terminated in the tube connector 104. Inserted into the At this time, both sides of the tube connector 104 is provided with an input side connector and an output side connector communicating with each other, the installation tube 100b respectively introduced from the premises trunk joint cavity 13 and the building trunk joint cavity 17 mutually. Communicate with each other. The tube connector 104 is a straight type for connecting tubes of the same diameter to each other, an end cap type for sealing an unused tube, and a reducer for connecting tubes of different diameters ( reducer type, close down type for connection of long-haul connectionless tubing, gas block type for fixing the fiber optic unit in the tube, bulkhead for distributing the tube ) Type and the like can be used.

As an alternative to the tube connector 104, the present invention may use a conventional fusion splicing, a mechanical optical connector, or the like to mutually connect the installation tubes 100b on both sides introduced into the building equipment room 15.

In the wiring system of the present invention having the above configuration, the laying tube 100b is preferentially installed in the trunk line system, and then the optical fiber unit 100a is inserted into the laying tube 100b by using pneumatic optical fibers. Continuous laying work is performed without connection points between them.

Specifically, the light outlet 20 of the household terminal box 19 from the optical distribution box 11 of the premises communication network 10 via the premises trunk joint hole 13, the building equipment room 15, and the building trunk boundary cavity 17. After installing the optical fiber tube cable 100 in which the installation tube 100b is installed so as to be developed), and entering the optical fiber unit 100a into the installation tube 100b using pneumatic pressure, the optical fiber is not connected to the optical fiber tube 100b. Continuous installation takes place from the distribution box 11 to the light outlet 20 of each generation terminal box 19.

Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto and will be described below by the person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims.

According to the present invention as described above, even if the installation tube is connected, switched and distributed as needed, the optical fiber core wire is continuously installed without a connection point, thereby preventing the optical loss and reducing the construction cost.

In addition, the present invention has the advantage that the occupied area of the equipment room in the building can be reduced as compared to the prior art because it is not necessary to process the cable.

Claims (3)

In the premises trunk line extending from the premises communication room of the apartment house or building to the equipment room in the building, and the optical subscriber network wiring system constructed in the building trunk line extending from the equipment room to each generation terminal box, An optical fiber tube cable in which at least one laying tube is installed in the premises trunk line and the building trunk line; It is installed on one side of the internal communication room and the equipment room, while the end of the optical fiber tube cable is coupled to the panel body and the mounting plate fixed on the panel body, the installation tube exposed from the optical fiber tube cable A tube connector having any one of a straight type, an end cap type, a reducer type, a close down type, a gas block type, and a bulk head type having an input end connector and an output end connector that can be inserted, and corresponding to the tube connector A tube patch panel comprising a tube guide fixed on the panel body; And And at least one optical fiber unit inserted into the installation tube by pneumatic pressure and continuously installed from the premises communication room to a generation terminal box. delete The method of claim 1, And a lip cord inserted into the inside of the optical fiber tube cable to facilitate peeling.

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