JPH08292330A - Branch optical fiber storage tray - Google Patents

Abstract

PURPOSE: To provide a branch optical fiber storage tray with which a single coated optical fiber can be dropped without affecting the other coated optical fiber. CONSTITUTION: A tray 1 is provided with four storage parts partitioned by a partition 4 and protection lids 2 are respectively provided. A storage part 3a stores the excess length of a tapered optical fiber ribbon part 6, branch part 7 for branching this excess length to a single conductor, the excess length of a single optical fiber part 8 for drawing, and connection parts 9 and 10. A storage part 3b stores the connection part 10 with the branch part 7 and the excess length of the drawn single optical fiber part. No drawn fiber is connected to the storage parts 3a and 3b. When the necessity of drawing is generated later, drawing is performed from storage parts 3c and 3d and drawing can be permitted without affecting the storage parts from which drawing is already performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch optical fiber storage tray suitable for use in distributing an optical communication network to subscribers.

[0002]

2. Description of the Related Art Various methods have been proposed for constructing an optical communication network. Among them, it is considered to construct an optical subscriber wiring system by distributing an optical communication network from a station to each subscriber like a conventional telephone.

FIG. 10 is a schematic diagram of an example thereof. In the figure, 21 is a station, 22 is an underground cable, and 23, 24, 25.
Is a utility pole, 26 is a connection box, 27 is a wiring cable, 28 is a connection box, 29 and 30 are wiring cables, 31 is a connection box, 32
Is an optical drop line, and 33 is a subscriber. The wiring cable 27 connected by the connection box 26 from the station 21 through the underground cable 22 is connected to the pole-mounted connection box 28 installed on the utility pole 23. From the connection box 28, the utility pole 24,
After 25, the wiring cables 29 and 30 are sequentially wired in the area where the subscriber exists. The wiring cables 29 and 30 are
It is supported by a support wire stretched between electric poles, but is connected to each other in a connection box 31 in the electric pole 25, for example. The subscriber 33 in demand is withdrawn from the connection box 31 by the optical drop line 32. The withdrawal to the subscriber may be withdrawn not only from the connection box 31 provided near the utility pole but also from an appropriate connection box provided between the utility poles. Of course, it is not necessary to provide a connection box for each electric pole, and like the electric pole 24,
Telephone poles that only hold the poles are also placed.

In this way, in order to wire the optical fiber to the subscriber, high-density laying is performed up to the vicinity of each subscriber, so that the optical fiber cable using the tape-shaped optical fiber core wire is used. Since only a single-core optical fiber is wired to each subscriber, a branch point is always required, and a branching unit for branching the tape-shaped optical fiber core into a single core is used.

FIG. 11 is a perspective view of an example of the branch portion.
In the figure, 41 is a multi-core connector, 42 is a tape-shaped optical fiber core wire, 43 is a single core wire, 44 is a single core connector, and 45 is a heat shrink tube. The multi-core connector 41 is attached to one end of the tape-shaped optical fiber core wire 42, and the other end of the tape-shaped optical fiber core wire 42 is branched into a single core wire 43. A heat-shrinkable tube 45 is covered for reinforcement at a portion where the tape-shaped optical fiber core wire is divided into the single-core wire. A single-core connector 44 is attached to each tip of the single-core wire 43. In this example, the tape-shaped optical fiber core wire 42 is a branch portion used for branching the four-core tape-shaped optical fiber core wires, and therefore the tape-shaped optical fiber core wire 42 includes four single-core wires 44
Has been branched into.

When the connection box is to be withdrawn to the subscriber, the multicore connector attached to the tip of the tape-shaped optical fiber from the station side is connected to the multicore connector 41 at the branch portion.
, And the single-core connector attached to the optical drop line to the subscriber is connected to the single-core connector 44 at the branching portion to perform branching.

Although the branching portion described in FIG. 11 has been described as one in which a connector is connected, one or both of the multi-core side or the single-core side is connected by fusion or mechanical splice. In some cases, it is not necessary to attach a connector to the branch in these cases.

FIG. 12 is an explanatory diagram of a branching method using a branching unit. In the figure, 51 is a tape-shaped optical fiber core wire, 52
Is a branch portion, 53 is a single-core optical fiber core wire portion, and 54 and 55 are connection portions. The branching portion 52 exemplifies the branching of the four-fiber optical fiber core portion into four single-core optical fiber core portions. At the end of the tape-shaped optical fiber core portion 51, the tape-shaped optical fiber core portion of the branch portion 52 is connected to the connecting portion 5.
4 and the connecting portion 55 connects the single-core optical-fiber core wire portion of the branching portion 52 to the single-core optical-fiber core wire portion 53. When the branch part 52 with a connector as described in FIG. 11 is used, the connection parts 54 and 55 are connected by a connector. As described above, the connection between the tape-shaped optical fiber core wire portion of the branch portion 52 and the tape-shaped optical fiber core wire portion 51, and the single-core optical fiber core wire portion and the single-core optical fiber core wire portion of the branch portion 52 As a method of connecting with 53, there is also a method of performing fusion splicing or mechanical splice connection, so that the form of the connecting portions 54, 55 depends on the connecting method.

FIG. 13 is an explanatory diagram of an example of a withdrawal situation. In the figure, 56 is a branching portion, 57 is a light drop line,
Reference numeral 58 is a subscriber. Figure 1 shows the connection for withdrawal.
As described in 2, the branching portion is used. However, when the work is to be dropped to each subscriber, for example, in the case of pulling it from the four-core tape-shaped optical fiber,
It is unlikely that the mind will be withdrawn simultaneously. The figure shows a situation in which two cores are respectively drawn to the subscriber 58 by the optical drop line 57. That is, in the first withdrawal work, two hearts are withdrawn and the other two hearts are idle. When you try to drop one heart that is idle due to a new construction of the house after that, the two hearts that have already been drawn down are in use, that is, the live line, Requires a technique to pull down a single core without affecting the live line.

In the connection box at the branch connection point described with reference to FIG. 10, the branch portion is stored in the storage sheet, but the storage sheet is usually the one that stores the coupling portion between optical fibers of the same type. I often do An example of such a fiber storage sheet is SAIkai 63-174.
The storage sheets described in Japanese Patent No. 307 and Japanese Utility Model Application Laid-Open No. 5-71803 are known, but all of them store extra lengths and connecting portions of a single core wire or a tape-shaped optical fiber core wire, It does not mention the storage of the optical fiber at the branch point using the branch section. That is, in the current state of the art, all the optical fibers are stored in one storage sheet. Therefore, if the storage sheet is used to perform the withdrawal as described with reference to FIG. The possibility of affecting the fiber cannot be denied.

[0011]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and it is possible to drop a single-core optical fiber core without affecting other optical fiber cores. It is an object to provide an optical fiber storage tray.

[0012]

According to a first aspect of the present invention, there is provided a branching section for converting a multi-core tape-shaped optical fiber core wire into a single-core optical fiber core wire, and a light connected thereto. A multi-core tape-shaped optical fiber core portion, a branch portion, and a branch optical fiber storage tray for storing the single-core optical fiber core portion, and a plurality of single-core optical fiber core portions and their connecting portions. It is characterized in that it can be stored in different storage sections.

According to a second aspect of the present invention, a multi-core tape-shaped light is formed between the branching portion for converting the multi-core tape-shaped optical fiber core wire into a single-core optical fiber core wire and the optical core wire connected thereto. In a branch optical fiber storage tray for storing a fiber core portion, a branch portion, and a single-core optical fiber core portion, a plurality of single-core optical fiber core portions and their connecting portions can be stored in different storage portions. It is characterized in that it is configured so that the multi-core tape-shaped optical fiber core wire portion and its connecting portion can be housed in one of the housing parts.

According to the third aspect of the present invention, the multi-core tape-shaped light is formed by the branching portion for converting the multi-core tape optical fiber core wire into a single-core optical fiber core wire and the optical core wire connected thereto. In a branch optical fiber storage tray for storing a fiber core portion, a branch portion, and a single-core optical fiber core portion, a plurality of single-core optical fiber core portions and their connecting portions can be stored in different storage portions. It is characterized in that it is configured so that the multi-core tape-shaped optical fiber core portion and its connecting portion can be housed in separate housing parts.

According to a fourth aspect of the present invention, a multi-core tape-shaped light is formed between a branching portion for converting the multi-core tape-shaped optical fiber core wire into a single-core optical fiber core wire and an optical core wire connected thereto. In a branch optical fiber storage tray for storing a fiber core part, a branch part, and a single-core optical fiber core part, the storage part has a two-stage structure, and the multi-core tape is placed in the storage part arranged on the lower side. The optical fiber core wire and its connecting portion are configured to be stored, and the single core optical fiber core portion and its connecting portion can be stored in a plurality of storage portions arranged on the upper stage side. It is characterized by being present.

According to a fifth aspect of the present invention, in the branch optical fiber storage tray according to any one of the first to fourth aspects, the storage portion for storing the single-core optical fiber core portion and its connecting portion is provided. It has a protective lid that can be opened and closed independently of each other.

According to a sixth aspect of the present invention, in the branch optical fiber storage tray according to any one of the first to fifth aspects, the storage portion for storing the single-core optical fiber core portion and its connecting portion is provided. , Each of which is independently rotatable.

According to a seventh aspect of the present invention, in the branched optical fiber storage tray according to the second or third aspect, the storage portions are laminated.

According to an eighth aspect of the present invention, in the branched optical fiber storage tray according to any one of the first to seventh aspects, at least the branch portion is stored in the storage portion in advance. It is a thing.

[0020]

According to the invention described in claims 1 to 4, the plurality of single-core optical fiber core portions and their connecting portions can be stored in different storage portions, respectively.
At the time of connection work, it can be pulled down without affecting other optical fiber cores.

According to the fifth aspect of the present invention, the storage portion for storing the single-core optical fiber core portion and its connecting portion has the protective lids which can be opened and closed independently.
Other optical fiber core wires are not touched during the connection work, and therefore the other optical fiber core wires can be pulled down without affecting the other optical fiber core wires.

According to the sixth aspect of the present invention, since the accommodating portion for accommodating the single-core optical fiber core wire portion and the connecting portion thereof can rotate independently of each other, during connection work, Work can be performed by rotating the storage part to a position where it is easy to work.

According to the seventh aspect of the present invention, the accommodating portions can be compactly arranged by stacking the accommodating portions.

According to the eighth aspect of the present invention, since at least the branch portion is stored in the storage portion in advance, the optical fiber core wire required for pulling down the connection box when the connection box is installed is stored in advance. Therefore, the subsequent withdrawal work becomes easy.

[0025]

1 is an explanatory view of a first embodiment of a branched optical fiber storage tray according to the present invention, FIG. 1 (A) is an external perspective view, and FIG. 1 (B) is an internal illustration. is there. In the figure, 1 is a tray, 2 is a protective lid, 3a to 3d are storage sections, 4 and 5 are partitions, 7 is a branch section, and 9 is a connection section. Note that FIG. 1 (A)
In the figure, the optical fiber core wire housed inside is also shown, but it is not shown that the inside is visible, but in order to explain the situation where the optical fiber core wire is housed, Is illustrated. of course,
A transparent material can be used for the tray and the protective lid.

The tray 1 has a branching portion 52 described with reference to FIG.
Is stored in the storage section. In this embodiment, as the tape-shaped optical fiber core wire used, four cores are taken as an example. The left storage portion 3a stores the tape-shaped optical fiber core portion of the branch portion 7 and one single-core optical fiber core portion as an extra connection length. In addition, the storage units 3b, 3c,
In 3d, the single-core optical fiber core wire portion of the branch portion 7 is accommodated as an extra connection length. A connecting part such as a connector may be attached to the tip of the tape-shaped optical fiber core part or the single-core optical fiber core part of the branch part 7 housed in each housing part, or the connecting part is not housed. In addition, at the time of the pulling-down work, the branch optical fiber storage tray may be used to store the connection portion or to perform the connection by fusion splicing or the like. When this branch optical fiber storage tray is used for pulling down, the work for storing the branching section 7 is not required. In addition, this branch optical fiber storage tray may be installed in advance in an imaginary storage box, and when the tape-shaped optical fiber core wire to be pulled out in the cable is determined in advance, The tape-shaped optical fiber core wire portion may be connected to the tape-shaped optical fiber core wire from the cable. The branched single-core optical fiber core part of the branching part 7 is connected to the single-core optical fiber core part for withdrawal, but the branch optical fiber is stored in a connection box equipped with an optical fiber cable. If it is not necessary to drop the tray with the tray installed, the tray may be left as it is.

Since the partition 4 is provided between the accommodating sections, the optical fiber cores accommodated in the accommodating sections other than the necessary accommodating sections are not affected during the connection work. . Further, the partition 5 is provided for distinguishing the optical fiber core wires between the storages and to the outside, and is not necessarily required, but in order to reduce the influence on the existing optical drop line, It is better to provide it. In this embodiment, since the space partitioned by the partition 5 is shared, the single-core optical fiber cores of the branching section 7 are stored in a mixed manner, but a plurality of rows of partitions are provided so that each storage section can be distinguished. May be provided. Also, the protective lid 2 is
As in this embodiment, it is preferable that each storage section is provided so that it can be opened and closed independently. However, the protective lid may be provided as an integral one instead of being able to open and close independently.

FIG. 2 shows a connection of the branch optical fiber storage tray of the present invention to the tape-shaped optical fiber core portion from the cable and a part of the storage portion in the first embodiment described in FIG. FIG. 2 is an explanatory view of an example of a branched connection mode, FIG. 2 (A) is an external perspective view, and FIG. 2 (B) is an internal illustration. In the figure, the same parts as those in FIG. Reference numeral 8 is a single-core optical fiber core wire portion, and 10 is a connection portion.

In this embodiment, it is withdrawn from the storage portions 3a and 3b. Therefore, in addition to the extra length of the tape-shaped optical fiber core portion 6, the tape-shaped optical fiber core portion of the branch portion 7, a part of the single-core optical fiber core portion, and the connecting portion 9, One extra connection length of the single-core optical fiber core portion 8 was stored. Single-core optical fiber core part 8 and branch part 7
The single-core optical fiber core wire portion is connected by the connecting portion 10. In addition, in the storage portion 3b, the connection extra length of one single-core optical fiber core portion connected by the connecting portion is stored in one single-core optical fiber core portion of the branch portion 7. The single-core optical-fiber core wire portions 8 housed in the storage portions 3a and 3b are led out from the tray 1 and serve as light-off lines, which are shown as the single-core optical-fiber core wire portions 8 in the figure.
Since only two are withdrawn, the storage parts 3c, 3
In d, the state in which the single-core optical fiber core wire portion of the branch portion 7 is stored is maintained.

Generally, when forming a branch portion in the connection box, it is advantageous from the viewpoint of work efficiency that at least one core is drawn down. Therefore,
In the first embodiment, it may be considered that only one core is pulled down in the first branching work. In this case, the storage portion 3a
When the single-core optical fiber of FIG. 2 is pulled down and the two cores are pulled down, as shown in the drawing, the storage portions 3a and 3b
If there is a need for withdrawal, then withdraw it from the rest of the storage section.
In the subsequent withdrawal work, the withdrawal work can be performed without affecting the storage unit that has already been withdrawn.

FIG. 3 is an explanatory view of the inside of a second embodiment of the branched optical fiber storage tray of the present invention. In the figure, the same parts as those in FIG. 3a
3e are storage parts. Also in this embodiment, the branch from the four-core tape-shaped optical fiber core wire is taken as an example. Also in this embodiment, as described with reference to FIG. 1, in the branching operation, at least a part of the branching portion connected to the tape-shaped optical fiber core may be left undrawn, but here, The state in which some withdrawals have been performed will be described. In the second embodiment, the extra length of the tape-shaped optical fiber core portion 6 and the tape-shaped optical fiber core portion of the branch portion 7 are accommodated. The extra connection length of the single-core optical fiber core portion 8 is stored in the storage portions 3b to 3e. That is, it differs from the first embodiment in that the storage portion for storing the tape-shaped optical fiber core portion 6 and the branch portion 7 is separated from the storage portion for the single-core optical fiber core portion. The withdrawal is performed from the storage units 3b to 3e and can be performed in the same state.

FIG. 4 is a perspective view of the appearance of a third embodiment of the branched optical fiber storage tray of the present invention. In the figure, the same parts as those in FIG. The illustration of the protective lid is omitted. In this embodiment, each storage unit is individually mounted so as to be independently rotatable. Therefore, the storage part (3
The work can be performed by rotating b) to an angle that facilitates the work. In the drawing, the optical fiber core wires in each of the storage units are illustrated only to the extent that the optical fiber core wires are stored, and the connection relationship is not illustrated. Further, although the single-core optical fiber core wire portion 8 is illustrated,
As explained in Fig. 1, during the work with the connection box attached,
In some cases, the storage unit may store up to the branching unit in order to perform subsequent withdrawal without performing withdrawal. The same applies to the following examples.

FIGS. 5A and 5B are for explaining an example of the mechanism of the embodiment in which the accommodating part is rotatable. FIG. 5A is a schematic view of the main part, and FIG. 5B is a schematic view of the accommodating part. It is a perspective view. In the figure,
The same parts as those in FIG. 2 are designated by the same reference numerals and the description thereof will be omitted.
11 is a support part, 12 is a core wire introduction hole, 13 is a core wire extraction hole,
Reference numeral 14 is a connection portion holding portion, and 15 is a core wire storage guide. A plurality of storage units 3 a and 3 b are rotatably attached to the support unit 11. The optical fiber core wires to the storage sections 3a and 3b are introduced into the storage sections 3a and 3b from the core wire extraction hole 13 through the core wire introduction hole 12, and the optical fiber core wires connected to the storage section 3a and 3b are connected to each other. It is led out along the upper portion of the support portion 11. Therefore, one storage unit (3 in the figure)
When the connection work is performed by rotating a), the other storage units are not affected. As shown in FIG. 5B, the storage portion is provided with a core wire storage guide 15 so that the bending radius of the optical fiber core wire to be stored does not fall below a predetermined value. Further, the connecting portion 10 is configured to be held by the connecting portion holding portion 14.

FIG. 6 is an explanatory view of the appearance of a fourth embodiment of the branched optical fiber storage tray of the present invention. In the figure, the same parts as those in FIG. In this embodiment, the storage units are arranged in two stages. The storage portion 3a arranged in the lower stage stores the extra length of the connection portion 7 and the tape-shaped optical fiber core portion 6, and the connection portion 9. Connection 7
The single-core optical fiber core wire portion is introduced into the storage portions 3b to 3e arranged in the upper stage.

FIG. 7 is a perspective view showing the outer appearance of a fifth embodiment of the branched optical fiber storage tray of the present invention. In the figure,
The same parts as those in FIG. 6 are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the same storage portion as that of the first embodiment described with reference to FIG. 2 is used as the upper storage portion of the fourth embodiment. However, since the connection portion is stored in the lower storage portion, the single-fiber optical fiber core portion is stored in the upper storage portion. The upper storage part can be attached so as to be rotatable with respect to the lower storage part. In the connecting work of the lower storage section, the operation can be performed by rotating the upper storage section. However, the lower storage portion 3a that stores the branch portion is
You don't need to be able to easily open the lower compartment, because you don't need to access it.
Therefore, the upper storage portion may be fixed to the lower storage portion with a screw or a locking member.

FIG. 8 is a perspective view of the appearance of a sixth embodiment of the branched optical fiber storage tray of the present invention. In the figure,
The same parts as those in FIG. 6 are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the same storage portion as that of the third embodiment described with reference to FIG. 4 is used as the upper storage portion of the fourth embodiment. The upper storage units 3b to 3e are independently rotatable. Therefore, the storage part (3b in the figure) for connection work is rotated to an angle that facilitates work,
You can work.

FIG. 9 is a perspective view of the appearance of a seventh embodiment of the branched optical fiber storage tray of the present invention. In the figure,
The same parts as those in FIG. 6 are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the storage parts are arranged in an overlapping manner, and the storage parts are rotatably attached to the lower storage part. It is preferable to store the branching portion in the lowermost storage portion 3a, and the storage portion 3a of the branching portion may store the extra length of the optical drop line similarly to the first embodiment. Also, the second
As described in the embodiment of the above,
The extra length of the light drop line may not be stored.
At least the uppermost storage portion 3e is preferably provided with a protective lid. Of course, a protective lid may be provided in a storage section other than the uppermost one.

[0038]

As is apparent from the above description, according to the present invention, it is possible to pull down a single core fiber without touching another optical fiber core wire in a live state, and a bit error during handling can be achieved. There is an effect that can prevent.

[Brief description of drawings]

1 is an explanatory view of a first embodiment of a branched optical fiber storage tray of the present invention, FIG. 2 (A) is a perspective view of the appearance, and FIG.
(B) is an explanatory view of the inside.

FIG. 2 is a schematic view of a first embodiment of the branch optical fiber storage tray of the present invention described in FIG. 1, in which a cable is connected to a tape-shaped optical fiber core and branching is performed from a part of the storage section. FIG. 2A is an explanatory view of an example of a connection mode, FIG. 2A is an external perspective view, and FIG. 2B is an internal illustration.

FIG. 3 is an explanatory view of the inside of a second embodiment of the branch optical fiber storage tray of the present invention.

FIG. 4 is an external perspective view of a third embodiment of the branched optical fiber storage tray of the present invention.

5A and 5B are views for explaining an example of a mechanism of an embodiment in which a storage part is rotatable, FIG. 5A is a schematic view of a main part, and FIG. 5B is a perspective view of the storage part. is there.

FIG. 6 is an explanatory view of the appearance of a fourth embodiment of the branched optical fiber storage tray of the present invention.

FIG. 7 is a perspective view of the appearance of a fifth embodiment of the branched optical fiber storage tray of the present invention.

FIG. 8 is an external perspective view of a sixth embodiment of the branched optical fiber storage tray of the present invention.

FIG. 9 is a perspective view of the appearance of a seventh embodiment of the branched optical fiber storage tray of the present invention.

FIG. 10 is a schematic diagram of an example of an optical communication network.

FIG. 11 is a perspective view of an example of a branch portion.

FIG. 12 is an explanatory diagram of a branching method using a branching unit.

FIG. 13 is an explanatory diagram of an example of a withdrawal situation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Tray, 2 ... Protective lid, 3a-3e ... Storage part, 4, 5
... Partition, 6 ... Tape-shaped optical fiber core wire portion, 7 ... Branch portion, 8 ... Single-core optical fiber core wire portion, 9, 10 ... Connection portion, 1
1 ... Support part, 12 ... Core wire introduction hole, 13 ... Core wire extraction hole, 1
4 ... Connection part holding part, 15 ... Core wire storage guide.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takeshi Imaizumi 1 Taya-cho, Sakae-ku, Yokohama-shi Kanagawa Sumitomo Electric Industries, Ltd. Yokohama Works (72) Inventor Shigekazu Hayami 1-1-6 Uchisaiwai-cho, Chiyoda-ku, Tokyo No. Nihon Telegraph and Telephone Corp. (72) Inventor Yu Nozawa 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corp.

Claims (8)

[Claims] 1. A multi-core tape-shaped optical fiber core part, a branch part, and a branch part for converting the multi-core tape-shaped optical fiber core wire into a single-core optical fiber core wire and an optical core wire connected to the branch part, In a branch optical fiber storage tray for storing a single-core optical fiber core part, a plurality of single-core optical fiber core parts and their connecting parts can be stored in different storage parts, respectively. A branch optical fiber storage tray. 2. A multicore tape-shaped optical fiber core part, a branch part, and a branch part for converting the multicore tape-shaped optical fiber core wire into a single-core optical fiber core wire and an optical core wire connected thereto. In a branch optical fiber storage tray for storing a single-core optical fiber core part, a plurality of single-core optical fiber core parts and their connecting parts can be stored in different storage parts, respectively, and a multi-core tape A branch optical fiber storage tray, characterized in that the optical fiber core wire portion and its connecting portion can be stored in one of the storage portions. 3. A multicore tape-shaped optical fiber core portion, a branch portion, and a branch portion for converting the multicore tape optical fiber core wire into a single-core optical fiber core wire and an optical core wire connected to the branch portion, In a branch optical fiber storage tray for storing a single-core optical fiber core part, a plurality of single-core optical fiber core parts and their connecting parts can be stored in different storage parts, respectively, and a multi-core tape A branched optical fiber storage tray, characterized in that the optical fiber core wire portion and its connecting portion can be stored in separate storage portions. 4. A multi-core tape-shaped optical fiber core portion, a branch portion, and a branch portion for converting the multi-core tape optical fiber core wire into a single-core optical fiber core wire and an optical core wire connected thereto. In a branch optical fiber storage tray for storing a single-core optical fiber core portion, the storage portion has a two-stage structure, and the storage portion arranged on the lower side has a multi-core tape-shaped optical fiber core wire and its connection. Branch light, characterized in that each of the single-fiber optical fiber core portions and their connecting portions are housed in a plurality of housing portions arranged on the upper stage side. Fiber storage tray. 5. The storage unit for storing the single-core optical fiber core portion and its connecting portion has a protective lid that can be opened and closed independently of each other. The branch optical fiber storage tray according to item 1. 6. The storage unit for storing the single-core optical fiber core portion and the connecting portion thereof can rotate independently of each other, according to any one of claims 1 to 5. Branch optical fiber storage tray. 7. The branched optical fiber storage tray according to claim 2, wherein the storage sections are stacked. 8. The branch optical fiber storage tray according to claim 1, wherein at least the branch portion is stored in the storage portion in advance.