JP2010072260A - Optical wiring board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical wiring board that meets the need of an increment in an optical cord bundle due to high density in a rack. <P>SOLUTION: A quantity decrease in the optical cord bundle is provided by forming an insertion hole 11 for second optical cords in an excess length shelf 10 for the purpose of laterally wiring first optical cords 4a in an optical connecting unit device 3 and by vertically wiring by inserting the second optical cord bundle 5 in the insertion hole 11 for the second optical cords. In other words, the second optical cord bundle 5 is formed by bundling second optical cords 5a which are fixedly wired in collective housing and make no changes after installation such as TV circuits of compulsory subscription. This second optical cord bundle 5 is inserted into the insertion hole 11 for the second optical cords to make the wiring position different from the first optical cord bundle 4, thereby decreasing the quantity of the optical cord bundle that is vertically wired in an optical cord wiring space 9. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an optical wiring board that includes one or a plurality of optical connection unit devices housed in a rack, and is formed by connecting a plurality of optical splice units and optical coupler units constituting the optical connection unit device with an optical cord.

A conventional optical distribution board includes a rack, one or a plurality of optical connection unit devices accommodated in the rack, an optical fiber cable drawn into the rack from the outside and connected to the optical connection unit device, and an optical connection unit device. And a plurality of optical cords drawn from the optical cord bundle in a bundle shape (for example, an optical wiring board disclosed in the following Patent Document 1 is helpful). The optical wiring board having such a configuration has an optical code wiring space extending in the vertical direction between one side of the rack and one side of the optical connection unit device. In the optical code wiring space, optical code bundles are vertically wired.
JP 2001-4849 A

  In recent years, the amount of optical cords has increased as the density in the rack has increased. As a result, the amount of optical cord bundles increases, and there is a risk that the optical cord bundles will not fit in the optical cord wiring space. Although it is only necessary to take a large space for the optical cord wiring, there is a demand for reducing the width in the lateral direction of the rack, so that no sufficient measures have been taken.

  In addition, since the optical cord bundle is naturally heavier when the amount of the optical cord bundle is increased, there is a problem that it is difficult to fix the optical cord bundle, for example.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an optical wiring board that can cope with an increase in the amount of optical cords accompanying the increase in density in a rack.

The optical wiring board of the present invention according to claim 1, which has been made to solve the above-described problems, includes a rack, one or a plurality of optical connection unit devices accommodated in the rack, and the rack drawn from the outside into the rack. A plurality of types of first optical cords connected to the optical connection unit device and one or more first optical cords for each type are connected to different types of units constituting the optical connection unit device on the front side of the optical connection unit device. Between a plurality of second optical cords, a plurality of third optical cords drawn out of the rack by a predetermined number from the optical connection unit device, and one side of the rack and one side of the optical connection unit device With an optical cord wiring space extending vertically,
The optical connection unit device includes an optical coupler unit that connects the first optical cord as the different type unit and has a function as an optical coupler, another type of the first optical cord, and the second light. One or more optical splice units for splicing a cord to the third optical cord,
The different types of units are arranged in a stack,
The optical coupler unit includes a coupler unit front panel constituting the unit front side,
The coupler unit front panel has a coupler unit adapter portion formed by aligning a plurality of optical adapters,
The optical splice unit includes a splice unit front panel that constitutes a unit front side, and an extra shelf that protrudes forward from a lower front portion of the splice unit front panel and extends in the lateral direction of the splice unit front panel.
The splice unit front panel has a splice unit adapter portion in which a plurality of optical adapters are aligned, and an adapter non-installation portion without an optical adapter,
The extra shelf has a second optical cord insertion hole penetrating in the vertical direction before the adapter non-installation part,
The first optical cord is vertically wired in the optical cord wiring space and horizontally wired to the extra shelf and is connected to the optical splice unit via the splice unit adapter unit,
The second optical cord is connected to the optical coupler unit via the coupler unit adapter section, and is inserted into the second optical cord insertion hole and vertically wired in the optical cord wiring space. The optical coupler unit and the optical splice unit are connected as different vertical wirings.

  According to the present invention having such a feature, the first optical cord is not vertically wired in the optical cord wiring space in the form of a bundle of a plurality of first optical cords and a plurality of second optical cords, for example. And the second optical cord, and the first optical cord is vertically wired in the optical cord wiring space. Since the second optical cord has a second optical cord insertion hole in the optical splice unit, it is vertically wired to the front side of the optical connection unit device using this. According to the present invention, since the first optical cord and the second optical cord are separated from each other, the amount of the optical cord that is vertically wired in the optical cord wiring space is reduced by the amount of the second optical cord.

  In addition to the optical code wiring space, the present invention has a second optical code insertion hole as a vertical wiring dedicated space for the second optical code, which can cope with the increase of the optical code in the optical code wiring space. To.

  The optical wiring board of the present invention according to claim 2 is the optical wiring board according to claim 1, wherein the adapter non-installation portion has an opening for inserting the second optical cord for the second optical cord. The second optical cord that is provided in accordance with the position of the insertion hole and is inserted through the opening is connected inside the optical splice unit with a surplus length.

  According to the present invention having such characteristics, the optical splice unit employs a connection structure that eliminates the connector connection with the second optical cord and, for example, is fused internally or mechanically spliced. According to the present invention, it is possible to reduce optical loss by reducing the number of connector connections. According to the present invention, since the second optical cord has a surplus length, it can be pulled out from the opening by the surplus length, which is useful for other features described below.

  The optical wiring board according to a third aspect of the present invention is the optical wiring board according to the second aspect, wherein the second optical cord insertion hole can pull out the second optical cord to the side of the optical splice unit. It is characterized by being formed in a substantially U-shaped slit shape having an open portion.

  According to the present invention having such a feature, the second optical cord can be pulled out to the side of the optical splice unit by forming the second optical cord insertion hole into a slit shape.

  The optical wiring board of the present invention according to claim 4 is the optical wiring board according to any one of claims 1 to 3, wherein a portion of the extra shelf in front of the adapter non-installation portion is the second light. In addition to the cord insertion hole, the first optical cord lateral wiring portion is disposed in front of the second optical cord insertion hole and laterally interconnects the first optical cord. .

  According to the present invention having such a feature, the wiring position of the first optical cord and the wiring position of the second optical cord are clearly defined by the first optical cord lateral wiring portion and the second optical cord insertion hole. Divide it into Since the first optical cord and the second optical cord have different wiring positions and the wiring directions are different between the horizontal wiring and the vertical wiring, it is easy to distinguish them.

  The optical distribution board of the present invention according to claim 5 is the optical distribution board according to any one of claims 1 to 4, wherein the second optical cord is a light that becomes a specific line capable of fixed wiring without being changed after installation. It is characterized by being a code.

  According to the present invention having such characteristics, for example, a specific line that can be fixedly wired without any change after installation of a TV line or the like is used as the second optical code.

  In addition to the above features, the optical wiring board of the present invention can also include the following features (1) to (4).

  (1) In the optical wiring board according to the third aspect, the optical splice unit can slide the entire unit forward after the second optical cord is pulled out sideways through the open portion. It has a sliding mechanism to perform.

  According to such a feature, when the second optical cord that is vertically wired in the second optical cord insertion hole is pulled out to the side of the optical splice unit, the second optical cord is present in front of the optical splice unit. Disappear. By providing the optical splice unit with a slide mechanism, the optical splice unit can be slid forward, so that the operation on the inside of the unit can be easily performed.

  (2) In the optical wiring board according to claim 4, the optical splice unit has optical cord holding means above the second optical cord insertion hole and in the first optical cord lateral wiring portion. Features.

  According to such a feature, the second optical code and the first optical code can be held to stabilize the wiring position, and the second optical code and the first optical code can be more easily distinguished.

  (3) In the optical wiring board according to (2), the optical code holding means includes a substantially U-shaped frame-shaped main body portion and a bridge-shaped omission that is detachable from an open portion of the frame-shaped main body portion. An optical cord holder that has a stop portion and that faces sideways when used above the second optical cord insertion hole and faces upward when used in the first optical cord horizontal wiring portion. It is characterized by that.

  According to such a feature, the wiring position can be further stabilized by using the optical code holder and changing the direction in use. According to this feature, the second optical cord does not shift in the wiring position of the first optical cord, and the first optical cord does not shift in the wiring position of the second optical cord. It is also possible to use, for example, a surface tape as the optical code holding means (when fixing the optical code holding means to the upper side of the second optical code insertion hole or the first optical code horizontal wiring portion, The optical cord holder is easier to fix because of its structure).

  (4) In the optical wiring board according to any one of claims 1 to 4, the adapter non-installation portion is arranged at one end position in the lateral direction of the splice unit front panel or both end positions. The second optical cord insertion hole is formed before this according to the arrangement of the adapter non-installation portion.

  According to such a feature, for example, the vertical wiring position of the second optical code can be selected according to the specification.

  According to the first aspect of the present invention, since the second optical cord insertion hole is provided as a space for vertically wiring the second optical cord separately from the optical cord wiring space, the optical cord wiring space has a vertical length. The amount of optical cords to be wired can be reduced. Therefore, there is an effect that it is possible to cope with an increase in the number of optical cords accompanying the increase in density in the rack.

  In addition, according to the present invention, by reducing the amount of optical cords that are vertically wired in the optical cord wiring space, it is possible to reduce the width of the rack in the lateral direction and to reduce the size. Furthermore, according to the present invention, by dividing the first optical code and the second optical code, there is also an effect that the line number of the optical code accompanying the circuit switching can be easily determined.

  According to the second aspect of the present invention, there is an effect that a better structure of the portion related to the second optical cord can be provided. Of these structures, reducing the number of connector connections has the effect of reducing optical loss.

  According to the third aspect of the present invention, it is possible to provide a better structure of the second optical cord insertion hole for vertically wiring the second optical cord. With this structure, the second optical cord can be pulled out to the side of the optical splice unit.

  If the second optical cord is pulled out to the side of the optical splice unit and then the optical splice unit is slid forward, there is also an effect that the operation on the inside of the unit can be easily performed.

  According to the present invention described in claim 4, there is an effect that it is possible to provide a better structure for distinguishing between the first optical cord and the second optical cord. With this structure, for example, there is an effect that erroneous wiring or the like can be eliminated.

  According to the present invention described in claim 5, there is an effect that a better form of the second optical cord can be given.

  Hereinafter, description will be given with reference to the drawings. FIG. 1 is a diagram showing an embodiment of an optical wiring board according to the present invention, where (a) is a schematic configuration diagram of the optical wiring board, and (b) is a crossing of a first optical cord and a second optical cord. It is a schematic diagram of the part to do.

  2 is a perspective view of the optical connection unit device, FIG. 3 is a diagram showing the wiring state of the optical connection unit device, FIG. 4 is a perspective view of the adapter non-installation portion viewed from above, and FIG. 5 is the optical splice unit. It is a perspective view of the state made to slide.

  In FIG. 1A, reference numeral 1 denotes an optical wiring board of the present invention. In this embodiment, the optical wiring board 1 is installed in an apartment house having a number of rooms (assumed to be an example). The optical wiring board 1 is different from the optical wiring board of Patent Document 1 mentioned in the background art section and the publicly known optical termination board in the following points. That is, the structure relating to the wiring of the optical cord is different. In the present invention, by giving a characteristic to the structure related to the wiring of the optical cord, for example, it is possible to cope with an increase in the amount of the optical cord.

  The optical wiring board 1 includes a rack 2, a plurality of optical connection unit devices 3 accommodated in the rack 2, and a first optical cord bundle drawn into the rack 2 from the outside. 4, the second optical cord bundle 5 that is vertically wired on the front side of the optical connection unit device 3, and a predetermined number (here, the number of apartment houses) from the optical connection unit device 3 are drawn to the outside of the rack 2. The three optical cords 6 and the optical cord wiring space 9 extending in the vertical direction between the one side portion 7 of the rack 2 and the one side portion 8 of the optical connection unit device 3 are configured.

  In the optical wiring board 1, the first optical cord bundle 4 is vertically wired in the optical cord wiring space 9, and the second optical cord bundle 5 is vertically wired on the front side of the optical connection unit device 3 as described above. It has become.

  The first optical cord bundle 4 is formed by bundling a plurality of types of first optical cords 4 a and 4 b that are connected to the optical connection unit device 3 and that one or more types are provided for each type. In this embodiment, the first optical code 4a is, for example, an optical code from an ISP (Internet service provider), an optical code from an interphone, or the like, and these are drawn from the outside by the number of rooms. On the other hand, the first optical cord 4b is an optical cord as a TV line in this embodiment, and is drawn from the outside by the number of optical connection unit devices 3.

  The second optical cord bundle 5 is formed by bundling a plurality of second optical cords 5 a for connecting different types of units (described later) constituting the optical connection unit device 3.

  Regarding the optical cord bundle (optical cord bundle) vertically wired in the optical cord wiring space 9, the total amount of the first optical cord bundle 4 and the second optical cord bundle 5 becomes very thick (very The thick state will be described later with reference to FIG. 6). Therefore, the optical wiring board 1 of the present invention has been improved, and the vertical wiring of the optical code wiring space 9 is only the first optical code bundle 4. Accordingly, as will be understood from the following description, the amount of optical cord bundles vertically wired in the optical cord wiring space 9 can be reduced by the amount of the second optical cord bundle 5.

  The optical cord bundle is reduced by forming the second optical cord insertion hole 11 in the extra shelf 10 for lateral wiring of the first optical cord 4a in the optical connection unit device 3 (see FIG. 1B). The second optical cord bundle 5 is inserted into the second optical cord insertion hole 11 and vertically wired so as to be realized. More specifically, the second optical cord bundle 5 is an optical cord fixedly wired in an apartment house, in other words, an optical cord that does not change after installation of a TV line or the like that is forced to join (second optical cord 5a). ), And the second optical cord bundle 5 is inserted into the second optical cord insertion hole 11 at a wiring position different from that of the first optical cord bundle 4, thereby forming the optical cord wiring space 9. The amount of optical cord bundles vertically wired can be reduced.

  Hereafter, each said structural member which comprises the optical distribution board 1 is demonstrated, referring FIG. 1 thru | or FIG. In the description, the arrow P in FIG. 1 is the vertical direction (up and down direction), the arrow Q is the horizontal direction (left and right direction), and the direction perpendicular to the paper is the front and rear direction (the point where the arrows P and Q intersect). R corresponds to this).

  The rack 2 is a vertically long casing and is formed so that the first optical cord bundle 4 can be drawn into the interior from the ceiling portion 14. Moreover, it is formed so that the third optical cord 6 can be drawn out toward each room (for example, drawn out from the rear portion of the rack 2). In this embodiment, the rack 2 is formed as a 19-inch rack.

  The optical connection unit device 3 includes, as different types of units constituting the optical connection unit device 3, an optical coupler unit 15 that connects the first optical cord 4 b and has a function as an optical coupler, a first optical cord 4 a, and a second optical cord. And a plurality of optical splicing units 16 for splicing 5a to the third optical cord 6 (in the case where the optical splicing units 16 are individually described, reference numerals 16a to 16d are used. (The number of units is an example. One can be used instead of multiple). In this embodiment, the optical connection unit device 3 is configured so that the optical coupler unit 15 is at the bottom and four optical splice units 16a to 16d are stacked thereon.

  The optical coupler unit 15 has a function as an optical coupler, and is connected to the first optical cord 4b. The optical coupler unit 15 is configured so that the first optical cord 4b can be distributed into a predetermined number inside. In this embodiment, it is possible to distribute to 128 cores (the number is an example. Hereinafter, description will be made on the premise of 128 cores).

  The optical coupler unit 15 includes a unit main body 17 that performs the above-described distribution, a coupler unit front panel 18 that forms the front side of the unit main body 17, and protrudes forward from the lower front portion of the coupler unit front panel 18 in the lateral direction. The extended extra shelf 19 is provided. The coupler unit front panel 18 is configured to be able to connect to the distribution portion.

  The entire coupler unit front panel 18 is formed as a coupler unit adapter portion 20. The coupler unit adapter unit 20 is formed by aligning a plurality of optical adapters (for example, known SC adapters). Specifically, it is formed by arranging 16 optical adapter rows 21 in which 8 optical adapters are arranged in the vertical direction at a predetermined interval in the horizontal direction. For the arrangement of the optical adapter rows 21, FIG. 7C is used as a reference (in FIG. 2, only three rows are thinned out for the sake of the drawing). In this embodiment, the leftmost optical adapter row 21 corresponds to the line numbers 1-8. The second optical adapter row 21 from the left corresponds to the line numbers 9 to 16..., And the rightmost optical adapter row 21 corresponds to the line numbers 121 to 128.

  The extra shelf 19 provided at the lower front of the coupler unit unit front panel 18 is formed so as to be used for the horizontal wiring of the second optical cord 5a connected to the optical adapter of the coupler unit adapter unit 20. . The extra shelf 19 is formed to have a flat plate-like portion protruding from the lower front portion and a wall-like portion formed by bending the front end of this portion upward (the left and right ends of the extra shelf 19 are Opened with no walls).

  Optical cord bundle holders 22 for holding the second optical cords 5a in bundles are provided at the left and right end positions and the center position of the extra long shelf 19 (the structure of the optical cord bundle holder 22 will be described later). ). In the case of the optical coupler unit 15, the optical cord bundle holder 22 is used as necessary.

  The second optical cord 5a (see FIG. 3B) has a connector (not shown, for example, a known SC connector) at one end thereof. The second optical cord 5a can be connected to a corresponding optical adapter via a connector. The other end of the second optical cord 5a is structured to be drawn into the optical splice unit 16 and fused.

  In FIG. 3B, reference numeral 23a indicates a portion to be connected to the optical adapters having line numbers 1 to 32 (connector connection portion 23a). Reference numeral 23b is a portion connected to an optical adapter having line numbers 33 to 64, reference numeral 23c is a portion connected to an optical adapter having line numbers 65 to 96, and reference numeral 23d is a portion connected to an optical adapter having line numbers 97 to 96. A portion connected to a connector of 128 optical adapters is shown (connector connection portions 23b to 23d).

  Reference numeral 5 indicates a second optical cord bundle in which a plurality of second optical cords 5a (5a-1 to 5a-4) corresponding to the connector connecting portions 23a to 23d are bundled in the vertical direction. The second optical cord bundle 5 is a bundle of optical cords inserted through the second optical cord insertion hole 11 and vertically wired (a bundle of 128 optical fibers for the second optical cord 5a).

  The second optical cord 5a-1 (5a) constituting the second optical cord bundle 5 is drawn into the optical splice unit 16d to be connected in a predetermined manner (here, fusion, the same applies hereinafter). The second optical cords 5a-2 (5a) to 5a-4 are also drawn into the optical splice units 16c, 16b, and 16a, respectively, so that the same connection as described above is made.

  In FIG. 2, an optical splice unit 16 is a unit for splicing the first optical cord 4a and the second optical cord 5a to the third optical cord 6 (see FIG. 1). Has a splice part.

  The optical splice unit 16 includes a unit main body 24 that accommodates the splice portion, a splice unit front panel 25 that constitutes the front side of the unit main body 24, and a laterally projecting front side lower portion of the splice unit front panel 25. The extended extra shelf 10 is provided. The splice unit front panel 25 is configured to be able to be connected to the first optical cord 4a (see FIG. 3A).

  The splice unit front panel 25 has a splice unit adapter portion 26 in which a plurality of optical adapters are aligned, and an adapter non-installation portion 27 without an optical adapter.

  The splice unit adapter unit 26 is formed by arranging twelve optical adapter rows 28 in which eight optical adapters are arranged in the vertical direction at predetermined intervals in the horizontal direction. For the arrangement of the optical adapter rows 28, FIG. 7A is used as a reference (in FIG. 2, only three rows are thinned out for the sake of space). In the present embodiment, the leftmost optical adapter row 28 corresponds to the line numbers 1-8. The second optical adapter row 28 from the left corresponds to the line numbers 9 to 16..., And the rightmost optical adapter row 28 corresponds to the line numbers 89 to 96.

  The adapter non-installation portion 27 is arranged and formed on the right side of the splice unit front panel 25 (note that the right side indicates four optical adapter rows to which the optical cords from the optical coupler unit are connected to the connector in the case of the present invention or earlier. Part) The adapter non-installation portion 27 is formed to have an insertion portion for drawing the second optical cord 5a constituting the second optical cord bundle 5 into the inside. Specifically, one opening 29 for inserting the second optical cord 5a is formed.

  After the second optical cord 5a is inserted through the opening 29, the second optical cord 5a is accommodated in the optical splice unit 16 with a surplus length 30 (see FIG. 4). The opening 29 may have a slightly wider opening width as shown in FIGS. 2 and 4 or may be set narrower as shown in FIG. 7A. The adapter non-installation part 27 has a wall 31 protruding forward from the left edge of the opening 29 (the wall 31 will be described later).

  The extra shelf 10 provided at the lower front portion of the splice unit front panel 25 is formed so that it can be used for the horizontal wiring of the first optical cord 4a connected to the optical adapter of the splice unit adapter portion 26. The extra shelf 10 has a second optical cord insertion hole 11 on the right side (in front of the adapter non-installation portion 27) so that the second optical cord bundle 5 can be vertically wired. (See FIG. 1B and FIG. 4). The extra shelf 10 is formed to have a flat plate-like portion protruding from the lower front portion and a wall-like portion formed by bending the front end of this portion upward (the left and right ends of the extra shelf 10 are walls. It is formed in the open state without).

  As described above, the second optical cord insertion hole 11 is formed in a portion of the extra long shelf 10 in front of the adapter non-installation portion 27. The second optical cord insertion hole 11 is formed so as to penetrate in the vertical direction. Further, the second optical code insertion hole 11 is formed so as to be cut out from the right end of the extra shelf 10 to have a substantially U-shaped slit shape. The second optical cord insertion hole 11 is formed in a size that can correspond to the thickness of the second optical cord bundle 5. The second optical cord insertion hole 11 is formed in a substantially U shape. Further, the second optical cord insertion hole 11 is formed in a substantially U shape, thereby having an open portion. Therefore, the second optical cord bundle 5 is formed in a shape that can be pulled out to the side of the optical splice unit 16.

  The wall 31 is disposed at the edge position on the opposite side of the open portion of the second optical cord insertion hole 11 (see FIG. 4). The wall 31 is formed so as to rise from the edge.

  In FIG. 4, in addition to the second optical cord insertion hole 11, a first optical cord horizontal wiring portion 32 is formed in a portion of the extra long shelf 10 that is in front of the adapter non-installation portion 27. The first optical cord horizontal wiring portion 32 is arranged and formed in front of the second optical cord insertion hole 11 so that the first optical cord 4a can be laterally wired.

  The extra shelf 10 forms the first optical cord horizontal wiring portion 32 and the second optical cord insertion hole 11 so that the wiring position of the first optical cord 4a and the wiring position of the second optical cord 5a are defined. It can be divided clearly. Since the first optical cord 4a and the second optical cord 5a have different wiring positions and different wiring directions in the horizontal wiring and the vertical wiring, it is easy to distinguish them.

  An optical code bundle holder 22 for holding the first optical cord 4a in a bundle is detachably provided at the left end position, the central position, and the first optical cord horizontal wiring portion 32 of the extra shelf 10. . Also, the optical cord bundle holder 22 is detachably provided on the wall 31. The optical cord bundle holder 22 on the wall 31 is provided above the second optical cord insertion hole 11 in order to hold the second optical cord 5a in a bundle.

  The optical cord bundle holder 22 has a substantially U-shaped frame-shaped main body portion 22a and a bridge-shaped retaining portion 22b that is detachably attached to an open portion of the frame-shaped main body portion 22a. In the case of the wall 31 (upper side of the second optical code insertion hole 11), the optical cord bundle holder 22 is used sideways as shown in FIG. In addition, in the case of the other first optical cord horizontal wiring portion 32, etc., it is used upward.

  The first optical cord 4a has connectors (not shown, for example, a known SC connector) at both ends. One end of the first optical cord 4a can be connected to a corresponding optical adapter of the splice unit adapter portion 26 via a connector. The other end is used outside the optical wiring board 1.

  In FIG. 5, the optical splice unit 16 has a slide mechanism, although not particularly shown. More specifically, the optical splice unit 16 can slide the entire unit forward after the second optical cord bundle 5 is pulled out sideways through the open portion of the second optical cord insertion hole 11. (The second optical cord insertion hole 11 is formed in a substantially U shape so that the second optical cord bundle 5 can be pulled out to the side, so that the optical splice unit 16 is slid. Can be possible). The second optical cord bundle 5 can be pulled out simply by removing the retaining portion 22b of the optical cord bundle holder 22 and pulling it in the lateral direction.

  By the way, since the front surface of the optical connection unit device 3 according to the present invention has the adapter non-installation portion 27, the number of optical adapters is reduced as compared with that before the present invention. That is, in the present invention, since the second optical cord 5a is pulled in without connecting the optical splice unit 16 to the connector, the connector connecting portion can be reduced by this amount (cost reduction).

  Regarding the reduction of the connector connecting portion, it can be said that the present invention has a useful structure because it leads to a reduction in the portion where the optical loss occurs.

  In FIG. 3A, reference numeral 33a indicates a portion to be connected to the optical adapter of line numbers 1 to 32 (connector connection portion 33a). Reference numeral 33b indicates a portion connected to the optical adapter of line numbers 33 to 64, and reference numeral 33c indicates a portion connected to the optical adapter of line numbers 65 to 96 (connector connection portions 33b to 33b). 33c).

  Reference numeral 4 is a first optical cord bundle in which a plurality of first optical cords 4a corresponding to the connector connecting portions 33a to 33c and a first optical cord 4b connected to the optical coupler unit 15 are bundled in the vertical direction. Show. The first optical cord bundle 4 is a bundle of optical cords vertically wired in the optical cord wiring space 9 (see FIG. 1) (in this embodiment, since there are four optical splice units 16, 96 × Since 4 = 384 optical cords are included, and further, the first optical cords 4b corresponding to the number of the optical connection unit devices 3 are provided, the optical cord bundle is obtained by adding these (384 + α). ing).

  In this embodiment, the bundle of optical cords vertically wired in the optical cord wiring space 9 (see FIG. 1) is 384 cores + α as described above. On the other hand, before the present invention, a bundle of optical cords for 512 cores + α is obtained. Here, the 512 cores + α will be described in more detail with reference to the comparative example of FIG. 6. The bundle 51 of optical cords that are vertically wired is formed by bundling a plurality of second optical cords 52 (52a to 52d). A second optical cord bundle 53 and a first optical cord bundle 56 formed by bundling a plurality of first optical cords 54 (54a to 54d) and a first optical cord 55 are provided. It is formed with an amount of + α (it can be said to be very thick).

  The first optical cord 55 is an optical cord that does not change after installation of a TV line or the like, and is connected to a predetermined position of the optical coupler unit. The number of the first optical cords 55 is assumed to be + α.

  The second optical cords 52a to 52d are connected to the connector connecting portions 57a to 57d of the optical coupler unit. Each connector connection part 57a-57d has the optical adapter for 32 cores, respectively. The second optical cords 52a to 52d are vertically wired in the optical cord wiring space as the second optical cord bundle 53, and then branched at a predetermined position. The connector connecting portions 58a to 58d of the corresponding optical splice unit (32 cores respectively) Connector with a light adapter). The second optical cord 52a is connected to the connector connecting portion 58d of the optical splice unit,..., And the second optical cord 52d is connected to the connector connecting portion 58a of the optical splice unit.

  The first optical cords 54a to 54d are connected to the connector connecting portions 59a to 59c of each optical splice unit. Each connector connection part 59a-59c has an optical adapter for 32 cores, respectively. The first optical cords 54 a to 54 d are horizontally wired in the extra length shelf of each optical splice unit, and are vertically wired in the optical code wiring space as the first optical cord bundle 56.

  In the comparative example of FIG. 6, it can be seen that the bundle 51 of optical cords vertically wired in the optical cord wiring space is 512 cores + α, which is the sum of the second optical cord bundle 53 and the first optical cord bundle 56 (128+ (96 × 4) + α = 512 + α).

  As described above, according to the present invention, the bundle of optical cords vertically wired in the optical cord wiring space 9 (see FIG. 1) can be reduced by 128 cores compared to the comparative example (can be significantly reduced). Thereby, the amount of wiring accommodated in the rack 2 can be reduced.

  Further, the present invention leads to a reduction in optical cords provided with connectors at both ends, and as a result, costs can be reduced. Further, the cost can be reduced by reducing the number of connector connection portions.

  In addition, according to the present invention, since the amount of optical cord bundles vertically wired in the optical cord wiring space 9 (see FIG. 1) can be reduced, the lateral width of the rack 2 (see FIG. 1) is reduced. Miniaturization can be achieved. Further, according to the present invention, since the first optical cord bundle 6 and the second optical cord 7 are divided, it is possible to easily determine the line number of the optical code accompanying the circuit switching.

  In the above description, the splice unit front panel 25 has the splice unit adapter part 26 and the adapter non-installation part 27 as shown in FIG. Twelve optical adapter rows 28 are arranged in the splice unit adapter portion 26, and an opening 29 is formed in the adapter non-installation portion 27. Since the adapter non-installation portion 27 has a free space on the left side of the opening 29, the interval between the optical adapter rows 28 may be widened as shown in FIG. Although not particularly shown, line numbers 1 to 8 are written next to the leftmost optical adapter row 28 in the drawing. Also,…. In addition, line numbers 89 to 96 are written beside the rightmost optical adapter row 28 in the drawing.

  FIG. 7C is a comparative example. Compared with FIG. 7A, in the case where the features of the present invention are not provided, almost the entire surface of the unit becomes the adapter portion. Therefore, it can be seen that a large number of optical adapters are required (line numbers 1 to 128 are indicated on the side of the optical adapter row, although not particularly shown).

  In addition, as shown in FIG. 8A, the splice unit front panel 25 may be formed by reducing the number of optical adapter rows 28 or forming adapter non-installation portions 27 on both sides of the splice unit adapter portion 26. (The second optical cord insertion hole 11 is formed in front of the adapter non-installation portion 27). Furthermore, as shown in FIG. 8B, the interval between the optical adapter rows 28 may be widened.

  It goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows one Embodiment of the optical wiring board of this invention, (a) is a typical block diagram of an optical wiring board, (b) is the part of the part where a 1st optical cord and a 2nd optical cord cross | intersect It is a schematic diagram. It is a perspective view of an optical connection unit device. It is a figure which shows the wiring state of an optical connection unit apparatus, (a) is a schematic wiring diagram of an optical splice unit, (b) is a schematic wiring diagram of an optical coupler unit. It is the perspective view which looked at the adapter non-installation part from this upper direction. It is a perspective view of the state where the optical splice unit was slid. It is a typical wiring diagram of the optical connection unit apparatus of a comparative example. It is a front view of a splice unit front panel, (a) is a front view of what was adopted in FIG. 2, (b) is a front view of a modified example, (c) is a front view of what was adopted in the comparative example of FIG. . It is a front view which shows the modification of a splice unit front panel, (a), (b) is a front view of the state which provided the adapter non-installation part two places.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical wiring board 2 Rack 3 Optical connection unit apparatus 4 1st optical cord bundle 4a, 4b 1st optical cord 5 2nd optical cord bundle 5a 2nd optical cord 6 3rd optical cord 7, 8 One side part 9 Optical cord wiring Space 10 Extra long shelf 11 Insertion hole for second optical cord 15 Optical coupler unit 16 Optical splice unit 17 Unit body 18 Coupler unit front panel 19 Extra long shelf 20 Coupler unit adapter section 21 Optical adapter row 22 Optical cord bundle holder 22a Frame shape Main body part 22b Retaining part 24 Unit main body 25 Splice unit front panel 26 Splice unit adapter part 27 Adapter non-installation part 28 Optical adapter row 29 Opening part 30 Extra length 31 Wall 32 Horizontal wiring part for the first optical cord

Claims (5)

A rack, one or a plurality of optical connection unit devices accommodated in the rack, and a first of a plurality of types and one or a plurality of types connected to the optical connection unit device drawn into the rack from the outside An optical cord, a plurality of second optical cords connecting different types of units constituting the optical connection unit device on the front side of the optical connection unit device, and a predetermined number of external parts of the rack from the optical connection unit device A plurality of third optical cords that are drawn out, and an optical cord wiring space extending in a vertical direction between one side of the rack and one side of the optical connection unit device,
The optical connection unit device includes an optical coupler unit that connects the first optical cord as the different type of unit and has a function as an optical coupler, another type of the first optical cord, and the second light. One or more optical splice units for splicing a cord to the third optical cord,
The different types of units are arranged in a stack,
The optical coupler unit comprises a coupler unit front panel constituting the unit front side,
The coupler unit front panel has a coupler unit adapter portion formed by aligning a plurality of optical adapters,
The optical splice unit includes a splice unit front panel that constitutes a unit front side, and an extra shelf that protrudes forward from the front lower portion of the splice unit front panel and extends in the lateral direction of the splice unit front panel.
The splice unit front panel has a splice unit adapter portion in which a plurality of optical adapters are aligned, and an adapter non-installation portion without an optical adapter,
The extra shelf has a second optical cord insertion hole penetrating in the longitudinal direction in front of the adapter non-installation part,
The first optical cord is vertically wired in the optical cord wiring space and horizontally wired in the extra shelf and is connected to the optical splice unit via the splice unit adapter unit,
The second optical cord is connected to the optical coupler unit via the coupler unit adapter section, and is inserted into the second optical cord insertion hole and vertically wired in the optical cord wiring space. An optical wiring board characterized in that the optical coupler unit and the optical splice unit are connected as different vertical wirings. The optical wiring board according to claim 1,
The adapter non-installation portion has an opening for inserting the second optical cord in accordance with the position of the second optical cord insertion hole, and the second optical cord inserted through the opening is An optical wiring board characterized in that it is connected inside the optical splice unit with a surplus length. In the optical wiring board according to claim 2,
The second optical cord insertion hole is formed in a substantially U-shaped slit shape having an open portion that allows the second optical cord to be pulled out to the side of the optical splice unit. Board. The optical wiring board according to any one of claims 1 to 3,
In the extra shelf, the portion in front of the adapter non-installation portion is arranged and formed in front of the second optical cord insertion hole, in addition to the second optical cord insertion hole, and the first optical cord. An optical wiring board comprising a horizontal wiring portion for a first optical cord for horizontal wiring. The optical wiring board according to any one of claims 1 to 4,
The second optical cord is an optical cord serving as a specific line that can be fixedly wired without being changed after installation.

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