JP4546875B2 - Optical communication device - Google Patents

Description

The present invention, a plurality of optical package in the housing of the shelf is housed possible insertion in parallel in a vertical orientation, relates to optical communication equipment which the optical fiber connected to the optical adapter provided on the front surface of the optical package It is.

  For example, various communication devices are installed in a station building owned by a communication company, and a large installation space is required. Under such circumstances, in order to save space, the number of devices that can be maintained only on the front side is increasing instead of the devices that require maintenance on the front side and the back side of the device. The amount of cables connected to a communication device has increased.

  As an extra length processing structure of an optical fiber in a conventional optical communication apparatus, for example, a plurality of optical units composed of a printed circuit board on which optical component modules are mounted are accommodated in a shelf so that they can be inserted and removed in parallel in a vertical posture. In the optical communication apparatus, a technique including an optical fiber storage panel for introducing an optical fiber into each optical unit is disclosed. This optical fiber storage panel is housed in a sub shelf with a guide tray installed above the shelf in which each optical unit is accommodated so that it can be inserted and removed in parallel in a vertical posture corresponding to the position of each optical unit. A stopper for locking an optical connector mounted on the tip of an optical fiber to be introduced and a holder for forming an optical fiber extra length processing portion are installed on the surface of the plate. . And it is the structure which can be inserted / removed with respect to a shelf integrally with an optical unit (for example, refer patent document 1).

JP-A-5-232328 (2nd page, FIG. 1)

  Since the conventional optical fiber surplus length processing apparatus is configured as described above, a subshelf dedicated to the surplus length processing is necessary, which complicates the shelf structure and increases costs. In addition, for example, in the case of forced air cooling by a chimney structure from the lower part to the upper part of the optical communication housing, the extra length processing part is arranged on the upper part of the optical package on which the printed board is mounted. There was a problem that cooling efficiency was lowered because it hindered ventilation to the mounted optical component module and electronic components.

  Also, an optical fiber surplus length processing unit is provided for each optical package. However, since the surplus length processing unit performs surplus length processing for multiple optical fibers at the same time, an optical fiber that is in operation at the time of expansion or removal is used. There is a possibility that an error may occur in the signal transmitted by being connected to the optical package in operation.

The present invention has been made to solve the above-described problems, and does not hinder the cooling of the electronic components in the optical package, does not require a sub-shelf dedicated to extra length processing, and the like. An object of the present invention is to provide an optical communication apparatus having an optical fiber extra length processing structure excellent in workability at the time of removal.

An optical communication device according to the present invention is an optical communication device in which a plurality of optical packages are arranged side by side in a vertical position on a shelf in a housing so that they can be inserted and removed, and an optical fiber is connected to an optical adapter provided on the front surface of the optical package. Oite the communication equipment, and extra length handling reel seat for winding the excess length of the optical fiber, in a vertical position next to each of the opening and has light package accommodating portion and out of extra length handling reel seat And a surplus length processing section when the optical fiber is connected to the optical adapter of the optical package, and wound on a separate surplus length processing reel sheet for each optical fiber. It is comprised so that it may accommodate in an accommodating part from an opening part.

According to the optical communication apparatus according to the invention, provided with a extra length handling unit mounted in a vertical position next to each of the plurality of light packages removably housed in a vertical position in the housing shelf, the optical fiber over Since the long part is wound around an individual extra length processing reel sheet for each optical fiber and is housed inside from the opening of the extra length processing part, a subshelf dedicated to extra length processing is required. Since the extra length processing is performed in the same shelf, the extra length processing unit can be easily added if necessary. In addition, since the extra length of the optical fiber connected to each optical package is individually processed, the wiring work can be performed without affecting the optical fiber already in operation at the time of expansion or removal.

Embodiment 1 FIG.
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall perspective view showing an example of an optical communication apparatus provided with an extra length processing structure of an optical fiber according to the present invention, and FIG. 2 is an enlarged view of a main part thereof. A plurality of stages of shelves 2 are arranged in the optical communication device housing 1, and a plurality of optical packages 3 are arranged horizontally in each of the shelves 2, and guide rails (not shown) provided on the shelves 2. ) And can be inserted / removed along. As shown in FIG. 2, the optical package 3 includes a package body 4 on which a circuit board, a connector, and the like are mounted, an optical component module 5, and a front panel 6. The front panel 6 is provided with an optical adapter 8 for connecting an optical fiber 7 to be connected to an external device from the front, and although not shown, a locking portion and an ejector for attaching to and detaching from the shelf 2 are provided. A lever or the like is provided. On the lower side of each shelf 2, an optical fiber guide tray 9 for accommodating and aligning the optical fibers 7 is arranged along the shelf 2.

  Adjacent to the optical package 3, the surplus length processing unit 10 having an opening 11 a for accommodating the surplus length processing reel sheet 14 is attached to the shelf 2 so as to be inserted / removed in a vertical posture, similarly to the optical package 3. Yes. FIG. 2 shows a state in which one optical package 3 is pulled out, and also shows a state in which the extra length processing lead sheet 14 is taken out, but the illustration of the processing of the extra length portion of the optical fiber 7 is omitted. ing. Details of the surplus length processing unit 10 and the surplus length processing reel sheet 14 will be described later.

  The optical fiber 7 is introduced from the upper or lower opening of the optical communication device casing 1, wired to the side surface of the optical communication device casing 1, branched at each shelf portion, and disposed along the shelf. It is pulled out in the vicinity of the optical package 3 to be connected via the inside of the tray 9, and connected to the optical adapter 8 provided on the front panel 6 of the optical package 3 leaving an extra length portion. The method of extra length processing will be described later.

Next, details of the surplus length processing unit 10 will be described. 3A and 3B are perspective views of the surplus length processing unit 10, in which FIG. 3A shows the whole, FIG. 3B shows a state where the inside is seen through, and FIG. 3C shows a state where the extra length processing reel sheet is put in and out.
As shown in the figure, the surplus length processing unit 10 includes a front panel 11 having an opening 11a for taking in and out the surplus length processing reel sheet 14, and a guide rail (not shown) provided on the shelf 2 for mounting on the shelf 2. And a storage portion 13 for storing the extra length processing reel sheet 14. Although fixing to the shelf 2 is omitted in the figure, for example, it is structured to be fixed by an ejector lever, a screw, or the like, and the cost can be reduced by using the same fixing method as the optical package 3 to the shell 2. Can do. When fixed to the shelf 2, the front panel 6 of the optical package 3 and the front panel 11 of the extra length processing unit 10 are on the same plane.

  With this configuration, the surplus length processing unit 10 has a box shape in which only the opening 11a of the front panel unit 11 is opened. For example, the surplus length processing unit 10 has a so-called chimney structure from the lower part to the upper part of the optical communication device housing 1. Even in the case of performing forced air cooling, it has a sealed structure in which cooling air does not leak from the opening 11a. Note that the dimension in the thickness direction of the storage portion 13 is set to a thickness that allows a plurality of extra length processing reel sheets 14 to be stored, as shown in FIGS.

  Next, the extra length processing reel sheet 14 will be described. FIGS. 4A and 4B are perspective views of the extra length processing reel sheet 14. FIG. 4A shows a state where the optical fiber 7 has been inserted, and FIG. As shown in the figure, it is constituted by wall surface portions 15 and 16 made of a resin material of two thin plates having a polygonal shape, and a shaft portion 17 for winding the optical fiber 7. Further, a gap 18 is formed in one wall surface portion 16 so that an optical fiber can enter in the diameter direction. The thickness of one extra length processing reel sheet 14 configured in this way is approximately the sum of the diameter of the optical fiber 7 and the thickness of the two thin plates of the wall surface portions 15 and 16, and can be formed thin. At the time of use, as shown in FIG. 3, a plurality of sheets are stacked and stored in the storage unit 13 according to the number of required optical fibers. That is, one extra length can be processed for each arbitrary optical fiber 7.

  The polygonal outer shape of the wall surface portions 15 and 16 is that the polygonal surface is engaged with the bottom surface and the back side surface of the storage portion 13 during storage, and rotational movement of the extra length processing reel sheet 14 is prevented. However, it is not always necessary to use a polygon, and a circle may be used.

Next, a method for processing the extra length of the optical fiber 7 will be described. FIG. 5 is a perspective view of the main part showing the middle of the extra length processing operation, and FIG. 6 is a perspective view of the main part after completion. The optical fiber 7 is introduced into the optical fiber guide tray 9 from the side wall surface of the optical communication device housing 1, led out in the vicinity of the optical package 3 to be connected, and connected to the optical adapter 8 provided on the front panel of the optical package 3. To do. As shown in FIG. 5, the extra length portion of the optical fiber 7 is wound around the shaft portion 17 of the extra length processing reel sheet 14 and wound up until there is no sag, and then the extra length processing portion adjacent to the optical package 3. 10 is inserted into the storage section through the opening 11a of the front panel and stored. After storage, it looks like FIG.
Thus, since the extra length of the optical fiber can be adjusted steplessly, subtle sag during storage can be almost absorbed, and the optical fiber can be wired in an orderly manner.

In the description so far, the surplus length processing unit 10 has been provided separately adjacent to the optical package 3, but the surplus length processing unit 10 may be configured to be inserted and removed integrally with the optical package 3. . That is, the front panel of the optical package 3 is used, and the opening of the extra length processing section and the storage section are provided on it.
With such a configuration, for example, an extra length processing unit can be added to the optical package 3 with a minimum change by simply changing the front panel after an optical package having no extra length processing unit. can do.

As described above, according to the invention of the present embodiment, an optical package having an extra length processing reel sheet for winding an extra length portion of an optical fiber, and an opening and a storage portion for taking in and out the extra length processing reel sheet. A surplus length processing section attached in a vertical posture on each side of the optical fiber, and the surplus length section when the optical fiber is connected to the optical adapter, wound on an individual surplus length processing reel sheet for each optical fiber, Since it is configured to be accommodated from the opening of the surplus length processing section into the accommodating section, the optical fiber connected to each optical package can be individually processed for the surplus length, and the operating light already wired at the time of expansion or removal Wiring work can be performed with reduced risk of causing an error in the signal transmitted to the fiber.
In addition, since the optical package and surplus length processing unit are provided in the same shelf, there is no need for a subshelf dedicated to surplus length processing, and it is possible to increase the mounting efficiency by effectively utilizing the height of the device, and the surplus length processing. since part of easy to add later, can be optimized configuration tailored to the number of optical fibers, it is possible to implement high density without waste device as a whole.
Further, in the case of forced air cooling from the lower part of the housing, the package and the extra length processing unit are arranged side by side, so that the ventilation path of the optical package is not blocked, and the cooling efficiency is not lowered.

  In addition, when the extra length processing unit is configured so that it can be inserted and removed integrally with the optical package, when the extra length processing unit becomes necessary later, the extra length processing unit must be added to the optical package with minimal changes. Can do.

Embodiment 2. FIG.
7A and 7B are diagrams showing an extra length processing unit of an optical communication apparatus having an optical fiber extra length processing structure according to Embodiment 2 of the present invention. FIG. 7A is a front view, and FIG. 7B is a side view. Since the configuration of the entire optical communication apparatus and the optical package other than those shown in FIG. 7 is the same as that shown in FIGS. 1 to 6 described in the first embodiment, the description thereof will be omitted. The explanation is centered.

  The surplus length processing unit 19 according to the present embodiment is mounted on the shelf 2 and the front panel 11 having an opening 11a for taking in and out the surplus length processing reel sheet 14 as in FIG. 3 described in the first embodiment. A plate 12 that slides on a guide rail (not shown) provided on the shelf 2 and a storage portion 13 that stores the extra length processing reel sheet 14 are provided. The difference is that a locking portion 20 is provided on the lower surface of the storage portion 13. In FIG. 7B, the shape of the locking portion 20 is such that when the excess length processing reel sheet 14 is stored so as to contact the back side wall of the storage portion, the excess length processing reel sheet 14 rotates and moves toward the opening 11a. Although an example in which a level difference is formed is shown, it may be a simple projection.

As described above, according to the invention of the present embodiment, since the locking portion for positioning the extra length processing reel sheet is provided in the storage portion of the extra length processing portion, the extra length processing reel sheet is attached to the extra length. In addition to the effects of the first embodiment, the operability and reliability can be prevented because the extra length processing reel sheet is positioned and prevented from rotating and prevented from popping out of the opening when stored in the processing section. Can be improved.

In the first and second embodiments, the optical fiber guide tray is described as being disposed along the shelf on the lower side of the optical package. However, the same effect can be obtained even if the optical fiber guide tray is provided on the upper side of the optical package. Needless to say.
Further, the shape of the extra length processing reel sheet is not limited to that shown in FIG. 4. For example, the extra length processing reel sheet is provided with one winding shaft at the center between two circular thin plates, or the extra length portion on the plate. The formation holder may be provided in a circular shape or the like, and the same effect can be obtained as long as it is an extra length processing reel sheet that can be wound individually for each optical fiber.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective view of an optical communication apparatus having an optical fiber extra length processing structure according to Embodiment 1 of the present invention. It is a partial expansion perspective view of the principal part of FIG. It is a perspective view of the surplus length process part of the optical fiber surplus length process structure by Embodiment 1 of this invention. It is a perspective view which shows the surplus length processing reel sheet | seat of the optical fiber surplus length processing structure by Embodiment 1 of this invention. It is a perspective view explaining the extra length process by Embodiment 1 of this invention. It is a perspective view which shows the state after the completion of the surplus length process by Embodiment 1 of this invention. It is a figure which shows the surplus length process part of the optical fiber surplus length process structure by Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical communication apparatus housing | casing 2 Shelf 3 Optical package 7 Optical fiber 8 Optical adapter 9 Optical fiber guide tray 10, 19 Extra length processing part 11 Front panel 11a Opening part 13 Storage part 14 Extra length processing reel sheet 20 Locking part.

Claims (3)

A plurality of optical package in the housing of the shelf is housed capable insertion side by side in a vertical position, Oite the optical communication equipment to optical fiber in the optical adapter provided on the front surface of the optical package is connected,
A surplus length processing reel sheet for winding the surplus length portion of the optical fiber;
A surplus length processing reel sheet having an opening portion and a storage portion for taking in and out the surplus length processing reel sheet and attached in a vertical posture to each side of the optical package;
The extra length portion when the optical fiber is connected to the optical adapter of the optical package is wound around the extra extra length processing reel sheet for each optical fiber, and from the opening of the extra length processing portion. An optical communication device configured to be stored in the storage unit. In the optical communication apparatus according to claim 1, wherein, the optical communication device characterized by the extra length handling unit is configured to allow insertion and removal integrally with the optical package. In the optical communication apparatus according to claim 1 or claim 2, wherein, in the housing part of the extra length handling unit, optical communication, characterized in that a locking portion for the positioning of the extra length handling reel seat Equipment .

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