JPH10227921A - Optical wiring board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a body which is unnecessary when the holding position of an optical cable is changed and to easily hold it at the hold position by providing a lead-in part with a fitting body which is fitted to the optical cable and a holder which has holding parts for holding the fitting body repeatedly detachably and is fitted to a box body. SOLUTION: A holding unit 52 is equipped with the fitting body 54 fitted to the optical cable which is led in from outside and the holder 56 which has the holding parts for holding the fitting body 54 so that it can be attached and detached repeatedly and is fitted to the back panel of the box body. Then when the holding position of the lead-in part of the optical cable is changed, the fitting body 54 fitted to the optical cable is detached from the holding parts of the holder 56 and mounted on another holding part of the fitting body 54. At this time, the fitting body 54 is repeatedly attachable to and detachable from the holding parts, so no unnecessary body is formed. Therefore, the cost for the position change is reducible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical distribution board for branching and connecting an optical cable to another optical fiber.

[0002]

2. Description of the Related Art In order to branch and connect an optical fiber cable to an optical fiber core by optical connection, an optical distribution board which terminates a large number of optical fibers to form a group is generally used. In such an optical distribution board, for example, a connector connection section for branch connection of an optical fiber, a multi-fiber single-fiber branch section, an optical cord for a jumper, and an extra length associated with the optical connection of the optical cord are compactly stored. This is a structure in which the stacked trays are stacked at high density in multiple stages.

FIG. 16 is a front view showing a conventional optical distribution board. In FIG. 16, an optical distribution board is provided with a bundle of optical fiber cords 3a drawn out from a lead-out portion of an optical fiber cable 2 rising from a lower portion of a housing 1 inside a housing 1 fixedly installed at a predetermined position. Branch 4a to be wired
Connecting the optical fiber cord 3a at the branch portion 4a to an unbranched end of a fan-out cord 3b for branch connection via a fusion splicing reinforcing portion (not shown);
A fusion tray tray storage section T1 for storing a large number of fusion section trays 6 for storing the fusion splicing reinforcement section on the lower side of the box 1 and a branched other end section of the fan-out cord 3b. A branch connection tray storage section T2 for storing a branch connection tray 8 for storing an optical adapter (not shown) for switchably connecting a jumper code j to each branch cord at the upper part of the box 1 is provided. ing.

One end of the fan-out cord 3b, which is not branched, is introduced into each fusion part tray 6 from the right side in FIG. 16 and fused with the optical fiber cord 3a introduced from the left side of the fusion part tray 6. It is connected inside the tray 6. The central part of the fan-out code 3b is the fusion part tray storage part T
1. The other end of the fan-out cord 3b, which is inserted into the center tray 9 disposed between the branch connection tray storage units T2, is inserted into the respective branch connection trays 8 of the branch connection tray storage unit T2 on the left side in the figure. And is connected to a jumper cord j introduced into the branch connection tray 8 from the right side so that the connection can be switched.

[0005] The jumper cord j is wired between the branch connection trays 8 to connect the branch cords branched from the fan-out cord 3b. The extra length of the jumper cord j is the extra length storage tray 9a arranged at the bottom.
Is stored inside. Further, in the branch connection tray 8, the optical fiber cord 3d introduced from the outside of the box 1 is guided via the crossover wiring storage tray 9b arranged on the upper part of the box 1, and optically connected to the branch cord. In some cases. In addition,
These fan-out cords 3b wired in the box 1;
The jumper cord j and the optical fiber cord 3d are detachably clamped by a support 4 protruding from the inner surface of both side plates 10 of the box 1 with an appropriate clamping force that does not affect the optical signal transmission characteristics. Have been detained.

[0006] The branch connection tray storage portion T2 is connected to the branch connection tray 8 in the front-rear direction of the box 1 by guide rods 15 projecting forward (to the front of the drawing) from both right and left ends of the back panel 11 of the box 1. It is designed to be slidably supported (in the depth direction of the paper). The guide rods 15 are arranged on the left and right sides of the rear panel 11 so as to form a pair whose upper and lower positions coincide with each other on the rear panel 11.
The branch connection tray 8 is adapted to be taken in and out in the front-rear direction of the box 1 while maintaining the horizontal state by a pair of left and right guide rods. The jumper cord j and the fan-out cord 3b are inserted into the branch connection tray 8 via gates (not shown) provided on both right and left sides of the branch connection tray 8.

Some optical distribution boards are provided with an introduction portion for temporarily holding an optical cable introduced from outside at the time of introduction. As an introduction,
For example, a structure in which a lattice is arranged, an optical cable is inserted into an appropriate gap of the lattice, and then fixed to a part of the lattice with a tie wrap is adopted.

[0008]

However, in the introduction portion having the above structure, the optical cable is fixed to an appropriate position of the lattice with a tie wrap. Therefore, when the position on the lattice is changed, the tie wrap is cut. Then, the position of the optical cable was changed, and the optical cable was fixed to the lattice again with a new tie wrap.
There is a problem that the cut unusable tie wrap is generated as an unnecessary object. Also, when holding the grid, the holding position is difficult to work in the case, for example, even at the back position, it is necessary to perform a complicated work of winding and stopping the tie wrap at this back position,
There was a problem that workability was poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and does not take out unnecessary objects when changing the holding position of the optical cable in the introduction portion where the optical cable is introduced from the outside. It is an object of the present invention to provide an optical distribution board which can be easily held at a position.

[0010]

According to a first aspect of the present invention, there is provided an optical distribution board which branches and connects an optical cable introduced from the outside into an introduction portion in a casing with another optical fiber. Wherein the introduction section is a mounting body attached to the optical cable, a holding body attached to the box having a plurality of holding portions for repeatedly holding the mounting body detachably removable , Are provided. Thus, when changing the position of the optical cable in the introduction section, the mounting body attached to the optical cable is removed from the holding section, and attached to another holding section in the mounting body. In addition, since it can be repeatedly attached to and detached from the holding portion, no unnecessary matter is generated. In addition, since the optical fiber cable has a configuration that includes an attachment body attached to the optical cable and a holding unit that detachably holds the attachment body, the optical cable as a long object is attached to the attachment body in a free state detached from the holding body. Such a complicated operation can be performed. Therefore, such complicated work is eliminated in attaching the holding portion and the attachment body, so that the work can be easily performed.

According to a second aspect of the present invention, in the optical wiring board according to the first aspect, the holding body includes a plurality of the holding portions arranged in parallel in one direction, and each holding portion is provided with the mounting member. The optical fiber cable attached to the attachment body is attached to the body along a direction orthogonal to the one direction. This allows multiple optical cables to be
When each is held by the holding portion via the attachment body, they can be arranged in parallel.

An optical distribution board according to a third aspect of the present invention is characterized in that, with respect to the first or second aspect, the holder is cantilevered by the box. Thereby, even when the holding body has holding parts on both sides and the holding position of the optical cable is changed between the holding parts on both sides, the optical cable can be easily pulled from the side opposite to the supporting side of the holding body with respect to the box. Can be moved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the optical wiring board according to the present invention will be described below with reference to FIGS. The optical wiring board 50 of this embodiment is different from the optical wiring board shown in FIG. 16 in that, as shown in FIG.
b is provided at the lower portion of the box 1, and accordingly, a branch connection tray storage T2 for storing the branch connection tray 8 is provided above the transfer wiring storage tray 9b, and a center is provided above the branch connection tray storage T2. A tray 9 is provided above the center tray 9 with a fusion part tray storage part T1 for storing the fusion part tray 6.
Each is arranged. In the drawing, the same components as those in FIG. 16 are denoted by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 1, in an optical distribution board 50 of this embodiment, an introduction section for temporarily holding an optical cable (code cable) 20 introduced from the outside at the time of introduction is provided above the box 1. 51 are provided. The introduction unit 51 is composed of a plurality of, specifically, three holding units 52, 52,... Attached to the back panel 11, and each holding unit 52 is viewed from the front of the box 1. The upper, lower, left, and right positions are shifted from the others, and specifically, are provided at the upper right, the lower left, and the position between them.

As shown in FIGS. 2 and 3, the holding unit 52 is connected to the optical cable 20 (FIG. 13) introduced from the outside.
.), And a plurality of holding parts 55, 55,... For holding the mounting body 54 so that the mounting body 54 can be repeatedly attached and detached (referred to as repeatedly removable). And a holding body 56 attached to the back panel 11 of the first panel.

The holder 56 includes a holder body 58 and a lid 59.
As shown in FIGS. 2 to 4 and FIG. 6, the holding body main body 58 has a pair of side plate portions 61, 61 each having a rectangular shape and arranged in parallel at intervals. And a rectangular connecting plate portion 62 for connecting one side edge portion side in the longitudinal direction of these side plate portions 61, 61.
And a pair of rectangular mounting plate portions 63, 63 extending in the direction away from each other from the other end side in the length direction of both side plate portions 61, 61. This holder body 5
8 is attached to the rear panel 11 by bolting or the like at the mounting plate 63 and is cantilevered. In this state, the side plates 61, 61 extend perpendicular to the rear panel 11. In the following, a description will be given of a state in which the rear panel 11 is attached.

The holder 56 will be further described. FIG.
As shown in FIG. 3, a plurality of holding members 55, 55,... Are arranged in parallel at a predetermined regular pitch along the length direction of each side plate portion 61, 61 of the holding body main body 58. Are located. Each of the holding portions 55, 55,... Has an upper groove 65 formed on the upper portion of the side plate portion 61,
And a lower hole 66 formed vertically below the upper groove 65.

The upper groove 65 has a pair of upper edges 67, 67 formed at the upper end and inclined so that the upper portions are wider.
Intermediate edges 68, 68 extending vertically downward from adjacent lower ends of the upper edges 67, 67, and a semicircular lower edge 6 connecting the lower ends of the intermediate edges 68, 68 to each other.
9 and has a shape that is open upward at the upper edges 67, 67. The lower hole 66 has an upper semi-circular upper edge 70 formed at the upper portion, a lower semi-circular lower edge 71 formed at a lower portion with a smaller diameter than the upper edge 70, And a pair of intermediate edge portions 72, 72 for connecting the lower edge portion 71, respectively. A support hole 74 is formed at an upper position of the connecting plate portion 62 of the holder body 58.

The lid body 59 is provided on the upper part of the holder body 58 so as to be detachable repeatedly. As shown in FIGS. 2 to 4 and 6, a rectangular main plate portion 75 and a main plate portion 75 are provided. A substantially square contact plate portion 76 extending perpendicularly to the main plate portion 75 from one end in the length direction of the main plate 75, and perpendicular to the main plate portion 75 from both sides in the width direction of the main plate portion 75. Rectangular side plate 7 extending in the same direction as the contact plate 76
7, 77. The width between the insides of the side plates 77, 77 is slightly wider than the width between the outsides of the side plates 61, 61 of the holder main body 58, and the length of the main plate 75 is the side plate of the holder main body 58. 61, 61 are set longer than the length. The contact plate portion 76 holds a fitting body 79 that can be repeatedly fitted into and removed from the support hole 74 of the connecting plate portion 62 of the holder body 58.

Here, as shown in FIG. 5 and the like, a rectangular insertion hole 80 which is slightly wider than the width of the main plate portion 75 of the lid 59 and is elongated in the horizontal direction is formed in the rear panel 11. The width of the hole 80 in the vertical direction is slightly wider than the thickness of the main plate portion 75. The lid 59 is connected to the rear panel 11.
The main plate portion 75 is placed on the main body portion 75 with the opposite side of the contact plate portion 76 of the main plate portion 75 inserted into the insertion hole 80 of the main plate portion 75. In this mounted state, the side plate portions 77, 77 are held. They are arranged outside the side plates 61 of the body main body 58, respectively. Further, in the same state, a fitting body 79 provided on the contact plate portion 76 can be fitted into the support hole 74 of the holding body main body 58. It will be attached to the main body 58.

Here, the fitting body 79 is flexible, and is deformed when fitted in the support hole 74 to allow the fitting, and after fitting, the shape is returned by itself to prevent the fitting body 79 from coming off. Is made. In this attachment state, the lid 59 is maintained such that the contact plate portion 76 is in contact with the outside of the connecting plate portion 62 of the holder main body 58, and as shown by a two-dot chain line in FIG. Each of the side plates 77, 77 covers all the upper edges 67 of the upper grooves 65, 65, and closes all upper openings.

As shown in FIGS. 2 and 7 to 10, each of the mounting members 54 has the same shape as a rectangular substrate portion 82 and both sides formed on both sides in the longitudinal direction of the substrate portion 82, respectively. Engagement portions 83, 83 (see FIG. 9) forming a shape;
Bases 84, 84 having the same shape and formed on opposite sides of the engaging portions 83, 83 of the substrate 82, respectively, and each base 84, 84 has a substantially axial direction in the longitudinal direction of the substrate 82. And tie wraps 85 and 85 of the same kind respectively attached so as to be along. As shown in FIG. 7, each of the engagement portions 83 is formed on a columnar shaft portion 86 extending vertically from the substrate portion 82, and formed on the opposite side of the shaft portion 86 to the substrate portion 82. A disk portion 87 having a larger diameter than the shaft portion 86 is provided.

At a central position of the base 84 in the width direction of the substrate 82, a concave portion 88 recessed in the direction of the substrate 82 is formed over the entire range in the length direction of the substrate 82. The tie wrap 85 is composed of a band 90 and a fixing portion 91 formed at one end of the band 90, and the band 90 is inserted into a hole (not shown) formed in the base 84 to a predetermined intermediate position. 84 is supported. The tie wrap 85 is replaceable with respect to the base 84. Also,
When the band 90 is inserted through the fixing portion 91 of the tie wrap 85, the fixing portion 91 restricts the band 90 from coming off.

The mounting body 54 is provided on the side plate 6 of the holder body 58.
1 while inserting the disc portion 87 of the lower engaging portion 83 into the upper side of the lower hole 66 of the holder main body 58 from the lateral outer side, and inserting the disc portion 87 of the upper engaging portion 83 into the upper groove 65. After the substrate portion 82 is brought into contact with the side plate portion 61 and then moved downward, as shown by a two-dot chain line in FIG.
6 contacts the lower edge 71 of the lower hole 66, and the upper shaft portion 86 contacts the lower edge 69 of the upper groove 65. Here, the disk portion 8
7, the diameter of the lower edge portion 71 of the lower hole 66 and the diameter of the lower edge portion 69 of the upper groove 65 are larger than the diameter of the lower edge portion 69 by a predetermined amount. Movement of the body main body 58 in the side-to-side separation direction is restricted to prevent the body body 58 from coming off due to the side movement, and the engagement state is established.

When the lid 59 is attached to the holder main body 58 in this engaged state, the side plate 77 of the lid 59
However, the upper portion of the upper groove 65 is closed off from the mounting body 54, thereby restricting the upward movement of the mounting body 54 and the disengagement due to the upward movement. Here, as shown in FIG. 10, mounting bodies 54, 54,... Are attached to all the holding parts 55, 55,.

Next, the procedure for holding the optical cable 20 of the introduction section 51 in the optical distribution board 50 having the above-described structure will be described with reference to FIGS.
5 will be described in order.

First, when holding the optical cable 20, as shown in FIG.
Of the holding body 56 is forcibly pulled out of the fitting body 79 from the support hole 74 of the holding body main body 58 and moved forward, thereby being pulled out from the insertion hole 80 of the rear panel 11. Remove from In this state, since all the mounting bodies 54 can be moved upward, the mounting bodies 54 at the appropriate holding positions are moved upward, and then moved substantially vertically to the side plate portion 61. Then, as shown in FIG.

The held optical cable 20 is inserted into the upper and lower tie wraps 85 and the base 84 of the mounting body 54 thus removed, and the upper and lower tie wraps 85 are tightened at appropriate positions of the optical cable 20. By raising, the mounting body 54 holds the optical cable 20 with the tie wrap 85 and mainly the concave portion 88 of the pedestal portion 84, and thereby is fixed at an appropriate position of the optical cable 20 as shown in FIG. . The optical cable 20 is attached to the mounting body 5.
An outlet portion is formed on the introduction side from the mounting position of 4, and the optical fiber cord 3a is pulled out from the outlet portion. The mounting body 54 to which the optical cable 20 is mounted in this manner is fitted into the upper groove 65 and the lower hole 66 of the holder body 58 and is moved downward to restrict the lateral movement, as shown in FIG. Attach as follows.

After performing the above operation for all the optical cables 20 to be introduced, as shown in FIG. 15, the lid 59 is inserted into the insertion hole 80 of the rear panel 11 with the main plate portion 75 thereof inserted. In a state where the main plate portion 75 is placed on the holder main body 58, a fitting member 79 provided on the contact plate portion 76 is provided.
Is fitted in the support hole 74 of the holder main body 58 to be attached to the holder main body 58.

As a result, the lid 59 is fixed to the holder main body 58, so that the side plates 77, 77 of the lid 59 are fixed to the side plates 61, 6 of the holder main body 58.
Covers all the upper sides of the one upper groove 65 and closes all the upper openings, thereby restricting the upward movement of the attachment bodies 54, 54, and the disengagement accompanying the upward movement. In this state, each of the holding portions 55, 55,.
Are mounted so that the optical cables 20 attached to the mounting bodies 54 extend in the vertical direction orthogonal to the arrangement direction of the holding portions 55, 55,.

On the other hand, when the holding position of the optical cable 20 already held is changed, substantially as described above,
The lid 59 is detached from the holder main body 58, and the attachment body 54 is detached from the holder main body 58 in this state. At this time, naturally, the attachment body 54 is removed together with the attached optical cable 20, and thereafter, the attachment body 54 is directly attached to the holding portion 55 of the change destination without being detached from the optical cable 20. . And
All the optical cables 2 that are subject to such a change work
After performing the process for 0, the lid 59 is attached to the holder main body 58.

Of course, also in the case where the above-described holding operation and changing operation are performed in a mixed manner, the lid 59 is removed from the holder main body 58 and the mounting body 54 is detached from the holder main body 58 in this state. At the same time, the mounting body 54 is attached to the optical cable 20 to be held, the mounting body 54 is subsequently mounted to a predetermined holding portion 55, and the mounting body 54 attached to the optical cable 20 to be position-changed. After the position is changed, the lid 59 is attached to the holder main body 58.

According to the optical distribution board 50 having the above-described configuration, the introduction portion 51 includes the mounting member 54 attached to the optical cable 20 and the holding portion 55 for repeatedly holding the mounting member 54 in a detachable manner. When the holding position of the optical cable 20 at the introduction portion 51 is changed, the holding member 54 attached to the optical cable 20 is provided. Is removed from the holding portion 55 of the holding body 56, and is attached to another holding portion 55 in the mounting body 54. At this time,
Since the attachment body 54 can be repeatedly attached to and detached from the holding portion 55, no unnecessary matter is generated. Therefore, the cost for changing the position can be reduced.

Further, since it has a configuration in which the mounting body 54 attached to the optical cable 20 and the holding body 56 for detachably holding the mounting body 54 in the holding section 55, the mounting body 54 can be freely removed from the holding body 56. , The mounting body 54,
A complicated operation of attaching the optical cable 20 as a long object can be performed. Therefore, in mounting the holding portion 55 and the mounting body 54, such a complicated operation is eliminated, so that the operation can be easily performed. Therefore, the workability in the case where the attachment body 54 is attached to the optical cable 20 at the time of initial attachment or the like is greatly improved.

Further, the holding body 56 includes a plurality of holding portions 5.
5 are arranged in parallel in the horizontal direction, and each holding portion 55 mounts the mounting body 54 in a state where the optical cable 20 mounted on the mounting body 54 is along a vertical direction orthogonal to the horizontal direction. When the plurality of optical cables 20 are held by the holding portion 55 via the attachment bodies 54, respectively,
These can be arranged in parallel. Therefore,
The plurality of optical cables 20 can be held neatly.

In addition, since the holding body 56 is cantilevered by the back panel 11 of the box 1, the holding body 56 is attached to the side plate portions 61, 61 as described above.
Even when the mounting position of the optical cable 20 is changed between the both side plate portions 61, the optical cable 20 can be easily moved from the side opposite to the supporting side of the holding body 56 with respect to the box 1. Can be moved. Therefore, workability at the time of such a change can be significantly improved.

[0037]

As described in detail above, claim 1 of the present invention
According to the described optical wiring board, the introduction portion has an attachment body attached to the optical cable, and a holder attached to the box having a plurality of holding portions that repeatedly and detachably hold the attachment body. Therefore, when changing the position of the optical cable at the introduction portion, the mounting body attached to the optical cable is removed from the holding portion, and attached to another holding portion in the mounting body. Since the mounting body is repeatedly detachable from the holding portion, no unnecessary matter is generated. Therefore, the cost for changing the position can be reduced. In addition, since the optical fiber cable has a configuration that includes an attachment body attached to the optical cable and a holding unit that detachably holds the attachment body, the optical cable as a long object is attached to the attachment body in a free state detached from the holding body. Such a complicated operation can be performed. Therefore, such complicated work is eliminated in attaching the holding portion and the attachment body, so that the work can be easily performed. Therefore, the workability in the case of attaching the attachment body to the optical cable, such as during initial attachment, is greatly improved.

According to the optical wiring board of the second aspect of the present invention, a plurality of holding portions of the holding body are arranged in parallel in one direction, and each holding portion attaches a mounting body to the mounting body. The plurality of optical cables can be arranged in parallel by holding each of the plurality of optical cables in a holding section via a mounting body, since the optical cables are mounted along a direction orthogonal to the one direction. Therefore, a plurality of optical cables can be held in order.

According to the optical wiring board according to the third aspect of the present invention, since the holding body is cantilevered by the box, the holding body has the holding portions on both sides, and the holding portion between the holding portions on both sides is provided. Even when the holding position of the optical cable is changed by the above, the optical cable can be easily moved from the side opposite to the support side of the holding body with respect to the box. Therefore, the workability at the time of changing the holding position can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire configuration of an optical wiring board according to an embodiment of the present invention.

FIG. 2 is a perspective view showing one holding unit according to one embodiment of the optical wiring board of the present invention.

FIG. 3 is an exploded side view showing a holder according to the embodiment of the optical wiring board of the present invention.

FIG. 4 is an exploded front view showing a holder according to the embodiment of the optical wiring board of the present invention.

FIG. 5 is a view on the arrow X in FIG. 3 showing a rear panel of the optical wiring board according to one embodiment of the present invention;

FIG. 6 is a plan view showing a holder according to an embodiment of the optical wiring board of the present invention.

FIG. 7 is a plan view showing one mounting body of one embodiment of the optical wiring board of the present invention.

FIG. 8 is a side view showing one attachment body of one embodiment of the optical wiring board of the present invention.

FIG. 9 is a side view showing a state in which the mounting body according to the embodiment of the optical wiring board of the present invention is mounted on the holder main body.

FIG. 10 is a plan view showing a state in which the mounting body of one embodiment of the optical wiring board of the present invention is mounted on a holder main body.

FIG. 11 is a side view showing a procedure for holding the optical cable in the holding unit according to one embodiment of the optical wiring board of the present invention, showing removal of the lid from the holder main body. .

FIG. 12 is a side view showing a procedure for holding the optical cable in the holding unit according to one embodiment of the optical wiring board of the present invention, showing removal of the attachment from the holder main body. .

FIG. 13 is a side view showing a procedure of an optical cable holding operation in the holding unit according to the embodiment of the optical wiring board of the present invention, and showing attachment of the optical cable to the attachment body.

FIG. 14 is a side view showing a procedure for holding the optical cable in the holding unit according to the one embodiment of the optical wiring board of the present invention, showing attachment of the attachment to the holder main body. .

FIG. 15 is a side view showing a procedure of an optical cable holding operation in the holding unit according to the embodiment of the optical wiring board of the present invention, showing attachment of the lid to the holder main body. .

FIG. 16 is a front view showing a conventional optical distribution board.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Box, 20 ... Optical cable, 50 ... Optical distribution board, 51 ...
Introducing section, 54: mounting body, 55: holding section, 56: holding body.

Claims (3)

[Claims] 1. An optical distribution board (50) for branching and connecting an optical cable (20) externally introduced into an introduction section (51) in a box (1) to another optical fiber, wherein the introduction section A mounting member (54) attached to the optical cable; and a holding portion (5) for repeatedly and removably holding the mounting body (54).
And a holder (56) having a plurality of locations (5) and attached to the box. 2. The holding body, wherein a plurality of the holding parts are arranged in parallel in one direction, and each holding part includes the mounting body,
The optical distribution board according to claim 1, wherein the optical cable attached to the attachment body is attached along a direction orthogonal to the one direction. 3. The optical wiring board according to claim 1, wherein the holder is cantilevered by the box.