JPH10293214A - Optical-fiber wiring equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible freely to wire and make a crossover between optical-fiber wiring boards by arranging a aerial adjustment box at upper or lower position of plural optical-fiber wiring boards closely arranged in the horizontal direction and wiring and making a crossover between the optical-fiber wiring boards through the aerial adjustment box. SOLUTION: This equipment is provided with plural aerial adjustment boxes 21 successively connected in the horizontal direction and the optical-fiber wiring boards 22 arranged at the upper position of respective aerial adjustment boxes 21. As for the aerial adjustment box 21, various kinds of constitution such as a frame body and cylindrical body are adoptable. The crossover 25a, 25b are pulled into the aerial adjustment boxes 21 from respective optical-fiber wiring boards 22, and further, the resultant crossover 25a, 25b are pulled out freely to the objective optical-fiber wiring board 22. At this time, since the radii of curvature of the crossover 25a, 25b are secured in the aerial adjustment boxes 21, the wiring between the aerial adjustment box 21 and the optical-fiber wiring board 22 is performed effectively and easily. What is preferred is that metal fittings according to the kinds of the crossovers 25a, 25b are provided in the aerial adjustment box 21, and the crossovers 25a, 25b are fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical wiring facility, and more particularly to an optical wiring facility having a plurality of optical wiring boards.

[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. These optical distribution boards are trays in which a connector connection section for branch connection of an optical fiber, a multi-core 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. Is a multi-layered structure with high density.

FIG. 5 is a front view showing an optical distribution board. In FIG. 5, reference numeral 1 denotes a box, and a plurality of optical fiber cables 2 are drawn in from above or below. These optical fiber cables 2 are arranged along the side plate 10 of the box 1, and the cable clamp 4
b and the tension member clamp 4c, and the optical fiber core wire 3a is drawn out. These optical fiber cores 3a are attached to the fusion tray tray storage T at the bottom of the box 1.
, And are stored in the fusion part tray storage part T1 in the drawer type fusion part trays 6, 6,. In each of the fusion trays 6, 6,..., The optical fiber core wire 3a is connected to one end of the branch-out fan-out cord 3b, which is not branched, via a fusion splicing reinforcement (not shown). .. Are stored in the slide unit 12 attached to the back plate 11 of the box 1 and pulled out / stored in the front-back direction (the depth direction in FIG. 5). It is possible.

[0004] The fan-out cord 3b is pulled out upward through a center tray 9 installed above the fusion part tray storage part T1.
b are introduced from the left side in the drawing into the drawer-type branch connection trays 8, 8... stacked in multiple stages in the branch connection tray storage portion T2 installed above the center tray 9, The connection is switchably connected to a jumper code j (optical code) introduced into the branch connection tray 8 from the right through an optical connector (not shown). The branch connection trays 8, 8,... In the branch connection tray storage portion T2 are guided / guided by guide rods 15 projecting from the back plate 11 of the box 1 to be pulled out / stored in the front-rear direction (the depth direction in FIG. 5). It is possible. The jumper cord j is wired between the two branch connection trays 8, 8, and is connected to the other end of the fan-out cord 3 b in the branch connection tray 8,
Connect the desired optical lines. The extra length of the jumper cord j is stored in the branch connection tray storage part T2 or is stored in the extra length storage tray 9a arranged at the lower part of the box 1.

In the branch connection tray 8, the wiring 3d (optical cord) introduced into the box 1 from the wiring wiring storage tray 9b arranged on the upper part of the box 1 is connected to the fan-out cord 3b. In some cases. Thereby, the optical line drawn into the case 1 by the optical fiber cable 2 can be connected to the optical line outside the case 1. A large number of supports 4 are protruded from the inner surfaces of both side plates 10 of the box 1.
Thus, the fan-out cord 3b, the jumper cord j, and the wiring 3d in the box 1 are detachably clamped and retained with an appropriate clamping force that does not affect the optical transmission characteristics.

In recent years, with the increase in complexity of optical fiber networks, measures have been taken such as increasing the number of branches of an optical line using a plurality of optical distribution boards. FIG. 6 is a conceptual diagram showing a connection between two optical distribution boards. In FIG. 6, both optical wirings are provided by the connecting wirings 3 d which are connected to the connecting wiring ports 11, 11 opened on both right and left sides (left and right in FIG. 6) at the upper part of the box 1 of the both optical wiring boards adjacent to each other. The optical line of the board is connected. In FIG. 6, reference numeral 3e denotes a fusion splicing portion, and 3f denotes an optical connector.

FIG. 7 is a conceptual diagram showing an optical wiring facility in which more optical wiring boards are assembled. In this optical wiring facility, three or more optical wiring boards are assembled at one location in the horizontal direction, and the wiring wiring ports 11 opened on both right and left sides (left and right in FIG. 7) at the upper part of the box 1 of each optical wiring board are used. Wiring 3d between optical wiring boards
Is wired.

[0008]

By the way, in the case of the optical wiring equipment shown in FIG. 7, if the optical wiring board is brought close to the front and rear direction (the depth direction in FIG. 7) without any gap in order to reduce the installation space, (1) For example, the branch connection tray 8 and the rear plate 11 hinder the securing of a radius of curvature to the wiring 3d, which makes it impossible to transfer the wiring 3d between adjacent optical wiring boards in the front-rear direction. Occurs. Further, in both of FIGS. 6 and 7, if the number of the wirings 3 d increases, the wirings become complicated, so that there is a problem that it takes time to switch the connection of the wirings 3 d between the optical wiring boards. For example, in FIG. 7, a wiring 3d that passes between the target optical wiring boards 1a and 1b and passes through the optical wiring board 1c between the two optical wiring boards 1a and 1b.
Also exist, so that the connection wiring 3
It is necessary to carefully take out the target wiring 3d so as not to affect d, and the workability is unsatisfactory.

The present invention has been made in view of the above-mentioned problem, and provides an optical wiring facility which achieves the following objects. (A) By passing through a height adjustment box, a crossover wiring can be freely wired between a plurality of assembled optical wiring boards. (B) By distributing, organizing, and storing a plurality of wirings in a plurality of wiring wiring storage units formed in the height adjustment box,
This prevents entanglement of the connecting wires and improves workability such as connection switching. (C) It is possible to freely increase and decrease the number of the height adjustment boxes in the horizontal direction and to make the wiring of the crossover between the height adjustment boxes, thereby improving versatility with respect to the installation space, the number of optical distribution boards, and the like. .

[0010]

According to the present invention, a plurality of optical distribution boards for branching and connecting optical lines are arranged close to each other in the horizontal direction, and a height adjustment box is installed above or below these optical distribution boards. An optical wiring facility is characterized in that the wiring between the wiring boards is routed through the inside of the height adjustment box. Various configurations such as a frame and a cylinder can be adopted as the height adjustment box. The wiring can be drawn into the height adjustment box from each optical wiring board, and the drawn wiring can be freely drawn out to a target optical wiring board. At this time, since the bending radius of the wiring can be secured in the height adjustment box, the wiring can be efficiently and easily wired between the height adjustment box and the optical wiring board. As the crossover wiring, an optical cord, an optical cord cable obtained by converting the optical cord into a cable, or the like can be used. In the height adjustment box, it is more preferable to fix the crossover wiring by installing a fixing tool according to the type of crossover wiring. This makes it possible to stably maintain the optical performance of the wiring, and also to stably maintain the radius of curvature of the wiring particularly at a portion drawn from the optical wiring board. Further, an optical fiber cable can be separately drawn into the overhead-height adjusting box, and thereby, it is possible to cope with more various branch connections of the optical line.

[0011] In the present invention, a wiring storage portion for storing a wiring route wired between the height adjustment box and the optical wiring board, and a pull-out housing for storing the wiring routed without being routed to the optical wiring board. It is also possible to adopt a configuration in which a through-storage portion is formed in the height adjustment box. With this, it is possible to separate the wiring route drawn from the elevation adjusting box to the target optical wiring board and the wiring route running in the vicinity of the target optical wiring board, which affects the routed wiring. Work such as connection switching can be performed without any problem.

In the present invention, a plurality of the height-adjusting boxes are provided in a row in the horizontal direction, and a wiring is provided between adjacent height-adjusting boxes via an inter-box wiring port opened on the side of the height-adjusting box. A wired configuration can also be employed. As a result, the number of height adjustment boxes can be freely increased and decreased, and the number of installation boxes and the form of installation of the height adjustment boxes can be freely changed according to the installation space of optical wiring facilities and the number of optical distribution boards installed. In addition, by using the wiring of the wiring between the height adjustment boxes, the wiring of the wiring between a larger number of optical wiring boards can be provided.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An optical wiring facility according to a first embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the optical wiring equipment 20 of the present embodiment includes a plurality of height-adjusting boxes 21, 21... Arranged in the horizontal direction, and optical distribution boards 22, 22 installed on the respective height-adjusting boxes 21. ...

The height adjusting box 21 is a frame made of steel or the like. In FIG. 1, a partition plate 2 is
The wiring housing part 24a and the drawing-in housing part 24b are vertically divided by 3 to define a wiring housing part 24a and a receiving housing part 24b. In the wiring housing portion 24a, a wiring 25a (intermediate jumper code; optical cord) to be wired between the optical wiring boards 22 is housed, and in the passing storage portion 24b, the passing wiring 25a and the inside of the passing storage portion 24b are stored. It houses the passing wiring 25b (jumper cord between frames, optical cord) to be drawn through. Crossover wiring 25a, 25 wired in the height adjustment box 21
b denotes a box-to-box wiring port 27 opened on the side of the height adjustment box 21.
Is connected between the adjacent height adjustment boxes 21 and 21. The inter-box wiring port 27 is also opened in the front-rear direction (left and right in FIG. 2 (c)) of the height adjustment box 21, and the height adjustment boxes 21, 21 adjacent in the front-rear direction (depth direction in FIG. 1). The connecting wires 25a and 25b are connected to each other via the inter-box wiring port 27.

FIGS. 2A and 2B are views showing the details of the height adjusting box 21. FIG. 2A is a front view, FIG. 2B is a plan view, FIG. 2C is a side view, and FIG. FIG. 4 is a cross-sectional view taken along line -a. FIG.
As shown in (a) to (d), the height adjustment box 21 is in the shape of an elongated base. As shown in FIGS. 2A and 2B, a rectangular top plate 30 having an upper opening 29 at the center in the longitudinal direction is attached to the upper portion of the height adjustment box 21.
The connection wiring 25a housed in the wiring housing part 24a is connected to the optical wiring board 22 placed on the upper surface 28 of the top plate 30 through the upper opening 29. FIG. 2 (a),
As shown in (d), the partition plate 23 extends over the entire length of the height-adjusting box 21 and has a central opening 31 at the center in the longitudinal direction.

Next, the optical distribution board 22 will be described with reference to FIG. In FIG. 1, the optical distribution board 22 is
3 and a device-side frame 34 and a line-side frame 35 disposed on both sides of the relay frame 33 to face each other. The bottom dimension of the optical distribution board 22 substantially matches the upper face 28 of the height adjustment box 21.

The relay frame 33 contains a jumper cord 36 (optical cord) to be wired between the device-side frame 34 and the line-side frame 35. There are a number of jumper cords 36 stored in the relay frame 33, and these jumper cords 3
6 are arranged and stored by being fastened to a large number of cord clamps 38, 38 projecting from both side plates 37, 37 of the relay frame 33. Since the central space 33a for the jumper operation of the jumper cord 36 is secured between the both side plates 37, 37, the workability of the jumper cord 36 between the apparatus side frame 34 and the line side frame 35 is improved. be able to. The central space 33a communicates with the upper opening 29 and the central opening 31 of the height adjustment box 21. Both sides plate 3
Extra length 36a secured in the crossover wiring 25a between 7 and 37
Is the extra length storage tray 40b installed in the apparatus side frame 34.
And is prevented from entering the height adjustment box 21.

The apparatus-side frame 34 includes a number of stacked connector trays 39, 39 ... and extra length storage trays 40a, 40b.
And In this device-side frame 34, an optical cord cable 41 (optical line) connected to an optical device (not shown) is drawn in from above, and the optical cords 42, 42... Drawn from the optical cord cable 41 are distributed to the connector trays 39, 39. Wired. In the connector trays 39, 39, the optical cord 42 and the jumper cord 36 are switchably connected via an optical connector (not shown). The excess length of the optical cords 42, 42,... Is stored in the excess length storage tray 40a. The connector trays 39, 39... Are of a drawer type, and can be pulled out / stored in the front-rear direction (the depth direction in FIG. 1).

In the line-side frame 35, the optical cable 43 on the line side is drawn in from above, and the optical fiber core wire 45 drawn from this optical cable 43 is branched at the lower branching portion 44, and a large number of laminated fusion parts are stored. The wiring is distributed to the trays 46, 46. In each fusion section storage tray 46, the optical fiber core 45 is connected via a fusion splicing section (not shown).
And another optical cord 47 are connected. The optical cord 4
Reference numeral 7 denotes a connector tray 49, which is pulled out upward from the fusion part storage tray 46, and is stacked on the upper portion of the track side frame 35 via a center tray 48 provided at the center of the track side frame 35. I'm drawn into. In these connector trays 49, the jumper cord 36 drawn from the relay frame 33 and the optical cord 47 are switchably connected via an optical connector (not shown). The optical cord 47 is connected to the cord clamp plate 5 on the side of the line-side frame 35.
It is appropriately fixed by a number of cord clamps 51 attached to zero. Each of the fusion part storage trays 46, 46,... And the connector trays 49, 49,... Is of a drawer type, and can be pulled out / stored in the front-rear direction (the depth direction in FIG. 1).

In FIG. 1, reference numeral 52 denotes a cable clamp;
Is a tension member clamp for fixing the optical cable 43. The cable clamp 52 and the tension member clamp 53 may be configured to fix an optical cable from which an optical cable is drawn from below the line side frame 35. In this case, the optical cable can be easily drawn into the line-side frame 35 by taking measures such as forming an opening for drawing out the optical cable in the top plate 30 (see FIG. 2) of the height adjustment box 21.

According to the optical wiring equipment 20, X on the horizontal plane
By arranging the distribution wirings 25a and 25b via the plurality of height-adjusting boxes 21 provided in the Y direction, the distribution wiring 25a can be freely wired between the plurality of optical distribution boards 22 and 22. it can. Since the bending radius of the wiring 25a can be sufficiently ensured in the wiring housing portion 24a and the receiving housing portion 24b, the wiring 25a particularly between the optical wiring boards 22, 22 adjacent in the front-rear direction (the depth direction in FIG. 1). Wiring becomes easy.

Further, in the optical wiring equipment 20, the wiring 25b passing through the inside of the height adjustment box 21 is housed only in the draw-in storage portion 24b, and the wiring is provided between the height adjustment box 21 and the optical wiring board 22. Most of the connecting wirings 25a to be connected are stored in the wiring storage portion 24a, so that work such as connection switching of the connecting wiring 25a can be performed without affecting the connected connecting wiring 25b, thereby improving workability. . Only the passing wiring 25b for passing-in is stored in the passing wiring storage section 25b, and another passing wiring 25a is stored.
It is more preferable not to store the data because the entanglement between the connecting wires 25a and 25b can be reliably prevented.

Since the number of the height adjusting boxes 21 can be freely increased or decreased, it is possible to easily cope with the installation space of the optical wiring equipment 20, the number of the optical wiring boards 22, and the like. Moreover, since the crossover wirings 25a and 25b can be freely wired between the adjacent height adjustment boxes 21 through the inter-box wiring port 27, even when a large number of the height adjustment boxes 21 are connected in series. In addition, it is possible to efficiently connect the optical wiring boards 22 using the connecting wires 25a and 25b.

Next, an optical wiring facility 60 according to a second embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 3, the optical wiring equipment 60 of the present embodiment includes a plurality of height adjustment boxes 61, 61...
1 are installed on the optical distribution board 62.

The height adjusting box 21 is a frame made of steel or the like. In FIG. 3, a partition plate 6 is
The wiring storage section 64a and the drawing-in storage section 64b are vertically divided by 3 to define a wiring storage section 64a and a receiving storage section 64b. The wiring storage portion 64a stores a wiring 65a (inter-jumper jumper code; optical cord) to be wired between the optical wiring boards 62, and the passing storage portion 64b holds the wiring 65a and the inside of the passing storage portion 64b. The wiring 65b (a jumper cord between frames; an optical cord) to be drawn in is housed. Crossover wiring 65a, 65b wired in the height adjustment box 61
Are connected between the adjacent height adjustment boxes 61, 61 via an inter-box wiring port 67 opened on the side surface of the height adjustment box 61. The inter-box wiring port 67 is also opened in the front-rear direction (the left-right direction in FIG. 4C) of the height adjustment box 61, and is also provided between the height adjustment boxes 61 adjacent in the front-rear direction (the depth direction in FIG. 3). The crossover wirings 65a and 65b are communicated through the interbox wiring port 67.

FIGS. 4A and 4B show details of the height adjustment box 61, wherein FIG. 4A is a front view, FIG. 4B is a plan view, FIG. 4C is a side view, and FIG. FIG. 3 is a cross-sectional view taken along line -b. FIG.
As shown in (a) to (d), the overhead-height adjusting box 61 is shaped like a slender base in appearance. As shown in FIGS. 4A and 4B, a rectangular top plate 69 having an upper opening 70 at one end in the longitudinal direction is fixed to an upper portion of the height adjustment box 61. As shown in FIG. 3, the wiring 65 a housed in the wiring housing 64 a is connected to the top plate 6 through the upper opening 70.
9 and the optical wiring board 62 placed on the upper surface 68 of the wiring 9. As shown in FIGS. 4A and 4D, the partition plate 63
Is a rectangular plate extending over the entire length of the height adjustment box 61, and has a central opening 71 at one longitudinal end. The central opening 71 communicates with the upper opening 70. Since the curved portion 72 formed on the partition plate 63 projects from the central opening 71, the wiring 6 to be wired between the wiring storage portion 64a and the drawing-in storage portion 64b is thereby provided.
The curvature radius of 5a can be maintained.

Next, the optical distribution board 62 will be described with reference to FIG. In FIG. 3, the optical distribution board 62 includes a frame 73, a fusion part storage tray 74, and a connector tray 75.
In the frame 73, an optical cable 76 (optical line) is drawn in from the upper part, and an optical fiber core 77 drawn out from the optical cable 76 is branched at a lower branch part 78, and a large number of laminated fusion part storage trays 74, 74 are stacked. ... sorted and stored. Each fusion part storage tray 74 stores a fusion splicing part (not shown) between the optical fiber core 77 and another optical cord 79. The optical cords 79, 79,... Are drawn out to the upper part of the frame 73 via the center tray 80 installed in the center of the frame 73, and are distributed to the connector trays 75, 75,. They are organized and stored. In each connector tray 75, the connection wiring 65a, the jumper code 81 (optical code) and the optical code 79 are switchably connected via an optical connector (not shown). In addition, at the lower part of the frame 73,
a is open. The wiring port 73a communicates with the upper opening 70 of the height adjustment box 61, and
The bridge wiring 65 a is wired between the frame 73 and the height adjusting box 61 via the opening 3 a and the upper opening 70. .. And the connector trays 75, 7.
.. Are draw-out types, which can be pulled out / stored in the front-rear direction (the depth direction in FIG. 3).

Reference numeral 82 in FIG. 3 denotes an extra length storage tray.
The extra length of the jumper cord 81 is stored. Reference numeral 83 denotes a cable clamp, and reference numeral 84 denotes a tension member clamp, which fixes the optical cable 76 drawn into the hard 73. Reference numeral 85 denotes a code clamp, and an optical code 79,
The jumper cord 81 and the wiring 65a are clamped as appropriate.

According to the optical distribution equipment 60, the distribution wiring 65a can be freely wired by passing through the height adjustment box 61, and the intended optical distribution boards 62 can be connected to each other by the distribution wiring 65.
a enables efficient connection. In addition, since the connecting wiring 65a is drawn directly into the frame 73 and introduced into the target connector tray 75, compared with the case of passing through the relay frame 33 as shown in the first embodiment, The number of steps for connecting the jumper wiring 65a and the optical cord 79 and for jumper work are reduced, and these workability can be improved. Moreover, the upper opening 70 of the height adjustment box 61
And the central opening 71 is unevenly distributed in the longitudinal direction of the height adjustment box 61 (is unevenly distributed on the right side in FIG. 3), which is advantageous for wiring work and take-out work for the wiring 65a to be wired between the optical wiring board 62. Therefore, workability such as a jumper can be further improved.

It should be noted that the present invention is not limited to the first and second embodiments. For example, various changes can be made, such as installing a height adjustment box above a plurality of optical distribution boards. .

[0031]

As described above, according to the optical wiring equipment of the present invention, a plurality of optical wiring boards for branching and connecting the optical lines are horizontally arranged in close proximity to each other, and the overhead height above or below these optical wiring boards is increased. By installing an adjustment box and arranging the wiring between the optical wiring boards via the inside of the elevation adjusting box, (a) the wiring can be freely wired between the plurality of optical wiring boards. ,
(B) Since the bending radius of the wiring can be sufficiently ensured in the wiring wiring storage portion, an excellent effect is obtained in that wiring of the wiring between the optical wiring boards adjacent in the front-rear direction becomes particularly easy.

[0032] A wiring storage unit for storing a wiring route wired between the overhead-height adjustment box and the optical wiring board, and a wiring wiring routed to the optical wiring board without wiring. (C) the crossover wiring drawn from the height adjustment box to the target optical wiring board and the vicinity of the target optical wiring board. An excellent effect is obtained in that work such as connection switching can be performed without affecting the passed wiring and the workability can be improved without affecting the passed wiring.

A plurality of height-adjusting boxes according to claim 3 are connected in series in the horizontal direction, and wiring is connected between the adjacent height-adjusting boxes via an inter-box wiring port opened on the side of the height-adjusting box. (D) The number of height adjustment boxes can be freely increased and decreased, and the number and height of the height adjustment boxes can be adjusted according to the installation space of optical wiring facilities and the number of optical distribution boards. (E) In addition, since the wiring of the crossover wiring is improved by arranging the crossover wiring between the height-adjusting boxes using the inter-box wiring port, the degree of freedom of the crossover wiring is improved. Even if there are a large number of optical wiring boards, an excellent effect is obtained that the wiring can be efficiently routed between the target optical wiring boards.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the optical wiring equipment of the present invention.

FIGS. 2A and 2B are views showing a height adjustment box of the optical wiring equipment of FIG. 1, wherein FIG. 2A is a front view, FIG. 2B is a plan view, FIG. 2C is a side view, and FIG. FIG. 3 is a sectional view taken along line aa of FIG.

FIG. 3 is a front view showing a second embodiment of the optical wiring equipment of the present invention.

FIGS. 4A and 4B are views showing a height adjustment box of the optical wiring equipment of FIG. 3, wherein FIG. 4A is a front view, FIG. 4B is a plan view, FIG. 4C is a side view, and FIG. 3 is a sectional view taken along line bb of FIG.

FIG. 5 is a front view showing an optical distribution board.

FIG. 6 is a perspective view showing the operation of the optical distribution board of FIG. 5;

FIG. 7 is a perspective view showing a problem to be solved by the present invention.

[Explanation of symbols]

Reference Signs List 20: Optical wiring equipment, 21: Height adjustment box, 22: Optical wiring board, 24a: Wiring storage unit, 24b: Delivery storage unit, 25a
… Transit wiring (jumper cord, optical cord), 25b…
Crossover wiring (inter-jumper cord, optical cord), 27: inter-box wiring port, 41: optical line (optical cable), 60: optical wiring equipment, 61: overhead height adjustment box, 62: optical wiring board, 64a: wiring storage Section, 64b ... Carry-in section, 65a ... Transmission wiring (jumper cord, optical cord), 65b ... Transmission wiring (jumper cord, optical cord), 67 ... Inter-box wiring port, 76 ... Optical line (optical cable) ).

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Naoki Hagino 1440 Mutsuzaki, Sakura City, Chiba Prefecture Inside Fujikura Sakura Plant

Claims (3)

[Claims] A plurality of optical distribution boards (22, 62) for branching and connecting optical lines (41, 76) are horizontally arranged close to each other, and a height adjustment box (21, 61) is provided above or below these optical distribution boards. )
Is installed, and the wiring between the optical wiring boards (25a, 25b,
Optical wiring equipment (20, 60), wherein the optical wiring facilities (65, 65b) are wired via the inside of the height adjustment box. 2. A wiring storage section (24a, 64) for storing a crossover wired between the height adjustment box and the optical wiring board.
2. The light according to claim 1, wherein a) and a receiving storage portion (24b, 64b) storing a wiring routed without wiring to the optical wiring board are formed in the elevation adjusting box. Wiring equipment. 3. An inter-box wiring port (27, 6) in which a plurality of the height adjustment boxes are connected in a horizontal direction and opened on the side of the height adjustment box.
The optical wiring equipment according to claim 1 or 2, wherein a bridge wiring is wired between the height adjustment boxes adjacent to each other via (7).