JP2001147359A - Method for wiring optical communication cable, and optical communication trunk line cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a method for efficiently and reliably wiring an optical communication cable and an optical communication trunk line cable by enabling the optical communication cable even to be wired, even if hard work such as fusion splicing is not executed in site. SOLUTION: This method for wiring the optical communication cable is composed of an optical communication trunk line cable manufacturing process, where an optical communication trunk line capable main body which collects plural optical cords cut into a preset length which is wired to respective floors from the lower end part of a tension supporting wire, capable of being hung down from the upper part to the lower part of a building installed in a factory is formed, an MU simple ferrule is connected to the upper end part of the optical cord of the optical communication trunk line cable main body, and a connector is attached to plural optical cords at the lower end part, an optical communication trunk line cable suspending process for attaching the upper end part of the tension supporting wire of the optical communication trunk line cable to the ceiling section in the upper part of the building or the like to install it in the state of being hung downward, and an optical cord connecting process for connecting the connecting at the lower end part to a private cabinet and connecting the MU simple ferrule at the tip end part of plural optical cords to an optical wiring box installed in the floor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an optical communication cable wiring method for installing an optical communication cable in a building such as an office building, and an optical communication trunk cable.

[0002]

2. Description of the Related Art Conventionally, in a building such as an office building or the like, a premises optical cabinet PD in which an optical communication cable connected to a premises optical cabinet PT connected to an external optical communication cable provided underground is installed on a predetermined floor. And optical cables are used on the floor and above and below floors to connect to line connection devices installed on the respective floors from the indoor optical cabinet PD.

[0003]

In the conventional method of wiring an optical communication cable to a building such as an office building, the optical communication cable must be fusion-spliced to a private optical cabinet PD installed on a predetermined floor. However, there is a disadvantage that the work is troublesome and troublesome. Further, since the optical communication cables are all wired on site, there is a drawback that the work efficiency is low and the work lacks reliability.

The present invention has been made in view of the above-mentioned conventional drawbacks,
An optical communication cable wiring method and an optical communication trunk cable that enable efficient and reliable optical communication cable wiring without having to perform a complicated operation such as fusion splicing on site. It is intended to provide.

The above and other objects and novel features of the present invention will become more completely apparent when the following description is read in conjunction with the accompanying drawings. However, the drawings are for explanation only, and do not limit the technical scope of the present invention.

[0006]

In order to achieve the above object, the present invention provides a tension support wire installed in a factory, which can be suspended from the upper floor to the lower floor of a building, and the lower end of the tension support wire. After forming an optical communication trunk cable main body in which a plurality of optical cords cut to a length that can be wired to each floor set in advance from the unit, an M is attached to the upper end of the optical cord of the optical communication trunk cable main body.
A manufacturing process of an optical communication trunk cable in which a U simple ferrule is connected, and a connector is connected to a plurality of optical cords at the lower end so that the optical cable drawn into the building can be connected through an in-house optical cabinet. Optical communication trunk line, which is transported to the building where the optical communication trunk cable manufactured in the above manufacturing process is installed, and the upper end of the tension support wire is attached to the ceiling of the upper floor of the building, etc., and is suspended from the lower floor. After the cable hanging process and the optical communication trunk cable hanging process, the lower end connector is connected to the indoor cabinet, and the MU simple ferrules at the end portions of the plurality of optical cords are connected to the optical wiring installed on the floor. The optical cord connecting step of connecting to the box constitutes a method of wiring the optical communication cable.

Further, according to the present invention, a tension supporting wire which can be suspended from an upper floor to a lower floor of a building to be installed, is cut from a lower end portion of the tension supporting wire into a length which can be wired to each preset floor. The optical communication trunk cable is composed of the optical communication trunk cable main body in which a plurality of optical cords are assembled, and the MU simple ferrule connected to the upper end of the optical cord of the optical communication trunk cable main body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 8, 1 manufactures an optical communication trunk cable 2 which can be suspended from an upper floor to a lower floor of a building installed in a factory. In the optical communication trunk cable manufacturing process, the optical communication trunk cable manufacturing process 1 is, as shown in FIG. 2, a cable that can be attached to a mounting bracket 3 fixed to a ceiling portion of an upper floor of a building to be installed. Hanging equipment 4
Is a tension support wire 5 attached to the upper end, a plurality of wires cut from the lower end of the tension support wire 5 to a length that can be wired to each preset floor, and seven wires in the embodiment of the present invention. As shown in FIG.
The optical cords 10, 10, 10, 1 covered with a sheath 9 having tearing recesses 8, 8, in which tension members 7, 7 are arranged on both sides of the optical fiber, and the outer peripheral portions thereof are torn on both sides.
As shown in FIG. 4, after forming the optical communication trunk cable main body 11 by assembling 0, 10, 10, and 10 by twisting or the like, the optical cord 10 of the optical communication trunk cable main body 11 is formed.
As shown in FIG. 5, MU simple ferrules 12, 12,
12, 12, 12, 12, 12 can be connected, and can be connected to the optical cords 10, 10, 10, 10, 10, 10, 10 at the lower end via the in-building optical cabinet 14 and the incoming optical cable 13 drawn into the building. Thus, the optical communication trunk cable 2 as shown in FIG. 6 is manufactured.

Reference numeral 16 denotes the optical communication trunk cable manufacturing process 1
The optical communication trunk cable 2 manufactured in the above is transported to the building where the cable is to be installed, and the cable suspension 4 at the upper end of the tension support wire 5 is mounted on the mounting bracket 3 as shown in FIG. 17, 17, 17, 17, 17, 17,
In the optical communication trunk cable hanging step, which is installed in a suspended state. In the optical communication trunk cable hanging step 16, after the optical communication trunk cable 2 is suspended, the through holes 17, 17 on each floor are provided. , 17,17,17,1
7 and 17 are the refractory fillers 1 conventionally used in general.
Block with 8. The optical communication trunk cable suspension step 16 may be performed by lifting the upper part of the optical communication trunk cable 2 from the lower floor to the upper floor.

Reference numeral 19 denotes a connector 1 at the lower end as shown in FIG.
5 is connected to the premises cabinet 14, and the MU simple ferrules 12, 12, 12, 12, 12, 12 at the tips of the optical cords 10, 10, 10, 10, 10, 10, 10 are connected.
12 and 12 are optical distribution boxes 20 installed on the floor,
This is an optical cord connection step for connecting to 20, 20, 20, 20, 20, 20.

[0012]

Next, different embodiments of the present invention shown in FIGS. 9 to 19 will be described. In addition,
In the description of the different embodiments of the present invention, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description will be omitted.

The main difference between the second embodiment of the present invention shown in FIGS. 9 to 13 and the first embodiment of the present invention is that, as shown in FIG. Two-core optical cords 10A, 10A, 10A, 10A, 10A, 10A,
A, using the optical communication trunk cable manufacturing process 1A for manufacturing the optical communication trunk cable 2A using the 10A, the optical communication cable wiring method using the optical communication trunk cable manufacturing process 1A is described. Even if it is performed, the same operation and effect as the first embodiment of the present invention can be obtained.

The third embodiment of the present invention shown in FIGS. 14 to 16 is mainly different from the first embodiment of the present invention in that a plurality of tension supporting wires 5 having substantially the same length are used. Optical cords 10, 10, 10, 10, 10, 1
After forming the optical communication trunk cable main body 11A in which the optical communication trunk cables 0, 10 are assembled, the optical cords 10, 10, 10, 10, 10, 10, 10 of the optical communication trunk cable main body 11A are drawn into the building, respectively. Optical cable 13
After the optical communication trunk cable manufacturing process 1B for manufacturing the optical communication trunk cable 2B for attaching the connector 15 so that the connector 15 can be connected to the premises optical cabinet 14, and the optical communication trunk cable hanging process 16, the connector 15 at the lower end is provided. Are connected to the premises cabinet 14 and the optical cords 10, 10, 10, 10, 10, 10, 1 to be wired to each preset floor of the optical communication trunk cable 2B.
Cut out 0 and take it out. MU simple ferrule 1 at the tip
Attach 2, 12, 12, 12, 12, 12, 12, 12,
Optical distribution boxes 20, 20, 20, installed on that floor
Optical cord connecting step 1 for connecting to 20, 20, 20, 20
In view of the use of 9A, the optical communication cable wiring method may be performed using such a process.

In the fourth embodiment of the present invention shown in FIGS. 17 to 19, the main difference from the third embodiment of the present invention is that, as shown in FIG. , Two-core optical cords 10A, 10A, 10A, 10A, 10A, 1
The optical communication trunk cable manufacturing method 1C for manufacturing the optical communication trunk cable 2C by using the optical communication trunk cable 2C using the optical communication trunk cable manufacturing method 1C is used. Even if it does, the same operation and effect as the third embodiment of the present invention can be obtained.

[0016]

As apparent from the above description, the following effects can be obtained in the present invention.

(1) A tension support wire installed at a factory, which can be suspended from an upper floor to a lower floor of a building, and cut from the lower end of the tension support wire to a length which can be wired to each preset floor. After forming an optical communication trunk cable main body in which a plurality of optical codes are assembled, an MU simple ferrule is connected to the upper end of the optical cord of the optical communication trunk cable main body, respectively, and the plurality of optical cords at the lower end are connected. Manufacturing process of an optical communication trunk cable to attach a connector so that it can be connected to the optical cable drawn into the building via a premises optical cabinet, and a building to install the optical communication trunk cable manufactured in the manufacturing process of the optical communication trunk cable Optical communication where the upper end of the tension support wire is attached to the ceiling of the upper floor of the building, etc. and suspended from the lower floor. After the step of suspending the optical fiber cable and the step of suspending the optical communication trunk cable, the connector at the lower end is connected to the indoor cabinet, and the MU simple ferrule at the end of the plurality of optical cords is installed on the floor. Since it consists of an optical cord connection process to connect to the wiring box, you can cut multiple optical cords at the factory,
An optical communication trunk cable in which an MU simple ferrule is connected to an upper end portion which is a connection portion of each floor can be used. Therefore, connection work on site can be easily and efficiently performed.

(2) According to the above (1), since the optical communication trunk cable manufactured at the factory is used, a uniform product that can obtain reliability, such as connection between the optical cord and the MU simple ferrule, can be used.

(3) According to the above (1), it is not necessary to perform a hard work such as fusion splicing on site, and wiring work can be performed on site without a special technician. Therefore, the wiring operation cost can be reduced.

(4) According to the above (1), a plurality of optical codes can be used effectively. Therefore, cost can be reduced.

(5) Claim 3 has the same effect as (1) to (4).

(6) Claims (2) and (4) also include (1) to (3).
The same effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a process chart of a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a mounting portion of the optical communication trunk cable according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram of an optical cord according to the first embodiment of the present invention.

FIG. 4 is a sectional view of the optical communication trunk cable according to the first embodiment of the present invention.

FIG. 5 is an explanatory view of a mounting portion of an MU simple ferrule of the optical communication trunk cable.

FIG. 6 is an explanatory diagram of the optical communication trunk cable according to the first embodiment of the present invention.

FIG. 7 is an explanatory diagram of a suspended state of the optical communication trunk cable.

FIG. 8 is an explanatory diagram of a wiring state of an optical communication trunk cable.

FIG. 9 is a process chart of the second embodiment of the present invention.

FIG. 10 is an explanatory diagram of a two-core optical code according to the second embodiment of the present invention.

FIG. 11 is a sectional view of an optical communication trunk cable according to a second embodiment of the present invention.

FIG. 12 is an explanatory diagram of an optical communication trunk cable according to a second embodiment of the present invention.

FIG. 13 is an explanatory diagram of a wiring state of an optical communication trunk cable.

FIG. 14 is a process chart of the third embodiment of the present invention.

FIG. 15 is an explanatory diagram of an optical communication trunk cable according to a third embodiment of the present invention.

FIG. 16 is an explanatory diagram of a wiring state of an optical communication trunk cable.

FIG. 17 is a process chart of the fourth embodiment of the present invention.

FIG. 18 is an explanatory diagram of an optical communication trunk cable according to a fourth embodiment of the present invention.

FIG. 19 is a sectional view taken along the line 19-19 in FIG. 18;

[Explanation of symbols]

1, 1A, 1B, 1C: Optical communication trunk cable manufacturing process, 2, 2A, 2B, 2C: Optical communication trunk cable, 3:
Mounting bracket, 4: Cable hanging tool, 5: Tension support wire, 6: Optical fiber core wire, 7: Tension member, 8: Ripped recess, 9: Sheath,
10, 10A: Optical cord, 11, 11A: Optical communication trunk cable main body, 12: MU simple ferrule, 13: Retracted optical cable, 14: Premise optical cabinet, 15: Connector, 16: Optical communication trunk cable hanging process, 1
7: through hole, 18: refractory filler, 19, 19
A: Optical cord connection step, 20: Optical wiring box.

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Makoto Ogihara 4125 Toyokuni Electric Wire Co., Ltd. in Saitama Plant, 4125 Saitama, Gyoda City, Saitama Prefecture (72) Inventor Gen. Tamura 4125 Toyokoni Electric Wire Co., Ltd. in Saitama Plant, Gyoda City, Saitama Prefecture (72) Inventor Fumihiro Akizuki 4125 Toyokuni Electric Wire Co., Ltd., Saitama Plant, 4125 Saitama, Gyoda City, Saitama Prefecture (72) Inventor Hideaki Tajima 4125 Toyokuni Electric Wire Co., Ltd., Saitama Plant, 4125 Saitama, Gyoda City, Saitama Prefecture (72) Inventor Kenji Nonaka Saitama 4125 Saitama, Gyoda City, Toyokuni Electric Wire Co., Ltd. Saitama Plant F-term (reference) 2H001 BB28 HH02 MM08 2H038 CA63 CA74

Claims (4)

[Claims] 1. A tension support wire installed in a factory, which can be suspended from a floor above an upper floor of a building to a floor below the building.
After forming the optical communication trunk cable main body in which a plurality of optical cords cut to a length that can be wired to each floor set in advance from the lower end of the tension supporting wire are formed, the optical cord of the optical communication trunk cable main body is formed. A manufacturing process of an optical communication trunk cable, in which a MU simple ferrule is connected to an upper end of each of the optical communication cables, and a connector is connected to a plurality of optical cords at the lower end so as to be connectable to an optical cable drawn into a building and a premises optical cabinet; Carry to the building where the optical communication trunk cable manufactured in the manufacturing process of this optical communication trunk cable is installed, attach the upper end of the tension support wire to the ceiling part of the upper floor of the building, etc. and suspend it to the lower floor. After the process of suspending the optical communication trunk cable to be installed and the process of suspending the optical communication trunk cable, connect the connector at the lower end to the premises cabinet. As well as connecting to a method of wiring an optical communication cable comprising an optical cord connection step of connecting the MU simple ferrule tip portions of a plurality of optical code placed light wiring box on the floor. 2. An optical communication trunk cable body in which a plurality of optical cords that can be hung from an upper floor to a lower floor of a building to be installed in a factory is formed. The manufacturing process of the optical communication trunk cable, which attaches a connector to the lower end of the optical cord so that it can be connected to the optical cable drawn into the building via the on-premises optical cabinet, and the optical communication manufactured by the manufacturing process of this optical communication trunk cable The optical fiber trunk cable suspension process of transporting the trunk cable to the building where the trunk cable is to be installed, attaching the upper end to the ceiling on the upper floor of the building, etc., and suspending the trunk cable to the lower floor. After the hanging process, connect the connector at the lower end to the premises cabinet, and connect the optical communication trunk cable to each of the preset floors. An optical cable connecting step of cutting and taking out the cord, attaching an MU simple ferrule to the tip, and connecting to an optical distribution box installed on the floor. 3. A tension support wire which can be suspended from an upper floor to a lower floor of a building to be installed, and a plurality of wires cut from the lower end of the tension support wire to a length which can be wired to each preset floor. An optical communication trunk cable comprising: an optical communication trunk cable body in which the optical cords are assembled; and an MU simple ferrule connected to an upper end of the optical cord of the optical communication trunk cable body. 4. An optical communication trunk cable main body in which a plurality of optical cords can be suspended from an upper floor to a lower floor of a building to be installed, and a lower end of the optical communication trunk cable main body is attached to the building. An optical communication trunk cable comprising: a retracted optical cable; and a connector attached so as to be connectable via a premises cabinet.