JP3865998B2 - Optical wiring system, optical wiring board - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical wiring system and an optical wiring board used for arranging and wiring a plurality of optical fibers.
[0002]
[Prior art]
For example, in an optical distribution board or the like, a configuration in which a plurality of termination units each having an optical connector adapter that is terminated so that an optical fiber can be connected to a connector is mounted is often used. In such an optical distribution board, for example, by connecting optical connector adapters using jumper optical fibers wired between different termination units, the optical fibers of each termination unit connect the jumper optical fibers. Connected through.
The jumper optical fiber is generally an optical fiber cord provided with optical connectors at both ends. In general, the optical connectors at both ends of the jumper optical fiber can be switched and connected to the optical connector adapter.
[0003]
[Problems to be solved by the invention]
By the way, in the optical distribution board as described above, if there are a large number of jumper optical fibers connecting the termination units, the operation of switching the jumper optical fiber so as to connect between the target optical connector adapters, or switching It takes time and effort to connect. In particular, the switching connection work and the replacement (replacement) of the jumper optical fiber require time and effort to find and take out the optical fiber to be worked on, so the development of a technology that can improve this workability has been required. . Furthermore, it is necessary to carry out a bending process with a bending radius that does not affect the optical characteristics of the extra length secured in each of a large number of jumper optical fibers, and there has been a demand for the development of a technique that can realize this.
[0004]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an optical wiring system and an optical wiring board that can accommodate the extra lengths of a plurality of optical fibers and arrange and wire them. To do.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, an optical wiring unit having an extra length accommodating portion for accommodating an extra length of an optical fiber and an optical fiber wiring port through which the optical fiber passes is terminated so that the optical fiber can be connected to a connector. The optical wiring unit accommodates the extra length of the optical fiber that is provided between the termination units provided with the optical connectors and whose both ends are connected to the optical connectors of the termination units on both sides of the optical wiring unit. The both ends of the optical fiber drawn out from the optical fiber wiring port are switchably connected to the optical connectors of the termination units on both sides of the optical wiring unit. The optical wiring unit Are provided in the unit main body into which the optical fiber is drawn, an extra length accommodating portion for accommodating the extra length of the optical fiber, and one side portion of the unit main body. An optical fiber wiring portion that is extended so that the drawn optical fiber is routed, and a side portion of the optical fiber wiring portion that faces the outside of the unit body. A drop prevention piece that is provided so as to prevent the optical fiber from dropping from the optical fiber wiring portion, and an optical fiber that is provided so as to avoid the fall prevention piece and from which the optical fiber is drawn out of the unit body A wiring port, wherein the optical fiber wiring port is provided separately at a plurality of different locations of the optical fiber wiring portion, and the extending direction of the optical fiber wiring portion from a termination unit on one side of the optical wiring unit A plurality of optical fibers drawn into the unit main body through an optical fiber wiring port at an end are a plurality of optical fibers provided on side portions other than the end in the extending direction of the optical fiber wiring portion. Wherein the is sorted from the fiber wire port is drawn to the termination unit on the other side of the optical wiring unit.
With such a configuration, the extra length of the optical fiber whose both ends are connected to the optical connector of the termination unit is absorbed by the optical wiring unit, arranged and wired.
[0006]
Further, with such a configuration, the surplus lengths of the plurality of optical fibers are accommodated in the surplus length accommodating portion with an allowable radius of curvature. These optical fibers are arranged in an orderly manner in the optical fiber wiring part, further sorted, and drawn out of the unit main body from the optical fiber wiring port. At this time, the optical fibers other than the optical fiber drawn out from the optical fiber wiring port are supported by the fall prevention piece so as not to jump out of the optical fiber wiring port and fall.
[0008]
With such a configuration, the optical fiber wiring port through which the optical fiber is drawn and the optical fiber wiring port through which the optical fiber is drawn out are provided separately so as to be distinguishable. That is, a plurality of optical fibers are all drawn into the unit main body from one optical fiber wiring port, and are drawn out from other different optical fiber wiring ports according to connection destinations or types, and are drawn out with the optical fiber to be drawn in. An optical fiber is provided in an identifiable manner.
[0009]
According to a second aspect of the invention, the optical interconnection unit according to claim 1, wherein, different extension direction end optical fiber distribution port provided in the said optical fiber wiring portion, extending in the optical fiber wiring unit The opening direction is different from that of the optical fiber wiring port provided on the side portion other than the direction end portion.
[0010]
By adopting such a configuration, the opening direction of the optical fiber wiring port into which the optical fiber is drawn is different from the opening direction of the optical fiber wiring port from which the optical fiber is drawn out. The direction of the bundle of optical fibers drawn into the unit main body and the direction of the bundle of optical fibers drawn out from the other optical fiber wiring port from the unit main body are identifiable.
[0011]
According to a third aspect of the present invention, an optical wiring unit having an extra length accommodating portion for accommodating an extra length of an optical fiber and an optical fiber wiring port through which the optical fiber passes is terminated so that the optical fiber can be connected to a connector. The optical fiber extra length is provided between the upper and lower termination units provided with optical connectors, and both ends are connected to the optical connectors of the termination units on both sides of the optical wiring unit. The both ends of the optical fiber drawn out from the optical fiber wiring port of the optical fiber are connected to the optical connectors of the termination units on both sides of the optical wiring unit so as to be switchable , and the optical wiring unit is The unit main body into which the optical fiber is drawn is provided with an extra length accommodating portion for accommodating the extra length of the optical fiber and one side portion of the unit main body, and is pulled from the extra length accommodating portion. An optical fiber wiring portion extended so that the optical fiber is routed, and one side portion of the optical fiber wiring portion protrudes from a side portion of the optical fiber wiring portion facing the outside of the unit body. A fall prevention piece that prevents the fall of the optical fiber from the optical fiber wiring section, and an optical fiber wiring that is provided avoiding the fall prevention piece and from which the optical fiber is drawn out of the unit body The optical fiber wiring port is provided separately at a plurality of different locations of the optical fiber wiring portion, and extends from the termination unit on one side of the optical wiring unit in the extending direction end of the optical fiber wiring portion. A plurality of optical fibers drawn into the unit main body through the optical fiber wiring port of the portion are a plurality of optical fibers provided on the side portions other than the end portion in the extending direction of the optical fiber wiring portion. An optical wiring board, wherein isosamples are sorted from bus wiring port is brought out to the termination unit on the other side of the optical wiring unit.
[0012]
With such a configuration, the extra length of the optical fiber whose both ends are connected to the optical connector of the termination unit is absorbed by the optical wiring unit, arranged and wired.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
It will be described below with reference to an exemplary type state of the present invention with reference to the drawings.
1 to 3 show an embodiment of an optical wiring unit according to the present invention.
[0014]
As shown in FIGS. 1A to 1C, the optical wiring unit A includes an extra length storage unit 1 for storing extra lengths of optical fibers 120, 120... And an optical fiber wiring portion 2 extended so that optical fibers 120, 120... Drawn from the extra length storage portion 1 are routed.
Here, the extra length storage unit 1 includes a substantially rectangular wiring plate 11 on which the optical fibers 120, 120... Are placed, side walls 12, 12 provided on the side of the wiring plate 11, and a rear wall. 13.
Further, the optical fiber wiring portion 2 provided on one side portion of the unit body U is an extension plate formed so that the side portion on the opposite side to the side on which the rear wall 13 of the wiring plate 11 is provided extends. 21. And the corner | angular part of the both ends of the extension direction of the extension plate 21 is excised, and the edge 211,211 formed by excision makes a fixed angle with the edge 212 of the remaining extension plates 21 Yes.
[0015]
Further, the optical fibers 120, 120... From the optical fiber wiring portion 2 are connected to the edge 212 of the extending plate 21 that is one side portion of the optical fiber wiring portion 2 and the side facing the outside of the unit body U. A plurality of fall prevention pieces 31, 31... Here, the fall prevention pieces 31, 31... Extend a part of the extension plate 21, bend upward, extend further and bend back to the unit body U side, and extend and bend downward. It is formed to be bent.
[0016]
A plurality of optical fiber wiring ports 4, 4... For drawing the optical fibers 120, 120... Into the unit main body U and pulling them out are side portions of the optical fiber wiring portion 2, that is, the edge of the extension plate 21. 211 and the end edge 212 are provided to avoid the fall prevention pieces 31, 31. Here, the optical fiber wiring ports 4, 4... Are the optical fiber wiring ports 41, 41 provided at the end edges 211, 211 that are the ends in the extending direction of the optical fiber wiring unit 2, and the other side. ... of the optical fiber wiring port 41 and the optical fiber wiring port 42 depending on the angle formed between the end edge 211 and the end edge 212. It is set as the structure from which opening direction differs.
[0017]
The optical fiber wiring ports 41 and 41 are provided with optical fiber gripping portions 32 and 32, respectively.
[0018]
Further, frame attachment portions 5 and 5 are provided at right angles to the side walls 12 and 12 at the ends of the side walls 12 and 12 on the optical fiber wiring portion 2 side, respectively.
[0019]
In the optical wiring unit A configured as described above, all of the plurality of optical fibers 120, 120... Are drawn into the unit body U from the optical fiber wiring ports 41, 41, and the optical fibers 120, 120. The surplus length is stored in the surplus length storage unit 1. Then, the ends of the optical fibers 120, 120... Drawn from the extra length storage unit 1 are arranged and wired by the optical fiber wiring unit 2 and sorted, and from a plurality of optical fiber wiring ports 42, 42. The unit body U is pulled out.
[0020]
Here, the optical fiber wiring port 41 and the optical fiber wiring port 42 are drawn into the unit body U from the optical fiber wiring ports 41 and 41 due to the difference in opening direction between the optical fiber wiring port 41 and the optical fiber wiring port 42 according to the angle between the end edge 211 and the end edge 212. The direction of the optical fiber and the direction of the optical fibers 120, 120,... Drawn from the optical fiber wiring ports 42, 42,.
[0021]
2 and 3 show an example of a state in which the above-described optical wiring unit A is incorporated in the frame P of the optical wiring board O by being screwed with the frame mounting portions 5 and 5.
A termination unit B and a termination unit C are incorporated above and below the optical wiring unit A, and a plurality of optical fibers 101, 101... The optical connector adapters 110, 110,.
[0022]
In the optical wiring unit A incorporated in the frame P of the optical wiring board O, the optical fibers 120, 120... Connecting these optical connector adapters 110, 110. 41 is pulled into the unit main body U, and the surplus length is stored in the surplus length storage portion 1. Hereinafter, these optical fibers 120, 120... May be referred to as jumper optical fibers 120, 120.
The ends of the jumper optical fibers 120, 120... Pulled out from the extra length storage unit 1 are arranged and wired by the optical fiber wiring unit 2 and sorted into units from a plurality of optical fiber wiring ports 42, 42. It is pulled out toward the termination unit B outside the main body U.
[0023]
Further, jumper optical fibers 120, 120... Connected to an upper or lower termination unit (not shown) are gripped by the optical fiber gripping portion 32 and drawn into the unit body U from the optical fiber wiring port 41. The optical fiber gripping portion 32 prevents the jumper optical fibers 120, 120... From falling off from the unit body U due to the weight of the optical fiber hanging downward, or the tension applied to the optical fiber by the operator's contact or the like. The transmission of force and vibration to the optical fiber in the unit body U is prevented.
[0024]
As described above, according to the optical wiring unit A shown in FIGS. 1 to 3, the plurality of optical connector adapters 110, 110,... Mounted on the plurality of termination units such as the termination unit B and the termination unit C are provided. .. When connecting between the plurality of jumper optical fibers 120, 120..., The extra length of the jumper optical fiber 120 can be accommodated to perform organized wiring. At this time, by dividing the plurality of optical wiring units A into a plurality of locations on the entire frame P, the number of jumper optical fibers housed in one optical wiring unit can be reduced. Further, it is possible to efficiently absorb the extra length of the jumper optical fiber between the termination units and arrange the wiring. In this way, among the plurality of jumper optical fibers 120, 120..., It becomes possible to quickly identify which jumper optical fibers 120, 120. It is possible to quickly find the target jumper optical fibers 120, 120.
Further, the optical fiber wiring port 41 through which the jumper optical fibers 120, 120... Are drawn and the optical fiber wiring port 42 through which the jumper optical fibers 120, 120. The direction in which the plurality of jumper optical fibers 120, 120... Are pulled into the unit main body U is set to the position of the jumper optical fibers 120, 120. It can be clearly identified from the location and orientation.
Thus, the work efficiency can be remarkably improved when the line switching work or the replacement work of the jumper optical fibers 120, 120.
[0025]
【The invention's effect】
The present invention has the following effects.
As described above, according to this onset bright, because it is possible to neatly wire the plurality of optical fibers by the optical fiber wiring port performs wiring or optical fibers through the unit, the switch connection or the like easily be able to. In particular, in optical fiber switching connection, replacement (exchange), and the like, the optical fiber can be quickly found, and workability can be improved. In addition, by providing a plurality of optical fiber wiring ports separated from each other, or by adopting a configuration in which the drawing direction is different from the drawing direction, it becomes easier to find the target optical fiber, Can be performed without affecting the optical fiber drawn out from another optical fiber wiring port, so that workability such as switching connection work and replacement work can be further improved. In addition, the optical fiber that is connected to the termination unit installed at a location where the both ends are separated from each other by the wiring system in which the extra length is absorbed by the optical wiring unit installed in the middle of the termination unit Can be well organized.
[Brief description of the drawings]
FIGS. 1A and 1B are diagrams showing an embodiment of the present invention, and FIG. 1A is a plan view, FIG. 1B is a front view, and FIG.
FIG. 2 is a diagram showing an embodiment of the present invention, and is a partially enlarged view showing a state in which an optical wiring unit is incorporated in a frame of an optical wiring board.
FIG. 3 is a diagram showing an embodiment of the present invention, and is a partial cross-sectional view showing a state in which an optical wiring unit is incorporated in a frame of an optical wiring board.
[Explanation of symbols]
A ... Optical wiring unit, B ... Termination unit, C ... Termination unit, O ... Optical wiring board, P ... Frame, 1 ... Extra length storage unit, 2. ..Optical fiber wiring part, 4 ..optical fiber wiring port, 5 ..frame mounting part, 11 ..wiring plate, 12 .. side wall, 13 .. rear wall, 21. Plate, 31 ... Fall prevention piece, 32 ... Optical fiber gripping part, 110 ... Optical connector adapter, 120 ... Optical fiber (optical fiber for jumper)

Claims (3)

An optical wiring unit (A) having an extra length accommodating portion (1) for accommodating an extra length of the optical fiber (120) and an optical fiber wiring port (4) through which the optical fiber is passed is an optical fiber (101, 102). ) Is provided between the termination units provided with an optical connector (110) that can be connected to the connector,
Both ends excess length of optical fiber that is a connector connected to the optical connector of the termination units on both sides of the optical wiring unit is accommodated in the optical wiring unit, both ends drawn from the optical fiber wiring port of the optical fiber is the A connector is connected to the optical connector of each termination unit on both sides of the optical wiring unit in a switchable manner ,
The optical wiring unit (A) is provided in a unit main body (U) into which an optical fiber is drawn, an extra length accommodating portion (1) for accommodating an extra length of the optical fiber, and one side portion of the unit main body, An optical fiber wiring portion (2) extended so that the optical fiber drawn out from the extra length storage portion is wired;
A fall prevention piece (31) that is provided on one side of the optical fiber wiring portion and protrudes from a side of the optical fiber wiring portion facing the outside of the unit main body to prevent the optical fiber from dropping from the optical fiber wiring portion. And an optical fiber wiring port (4) through which the optical fiber is drawn out of the unit main body from the optical fiber wiring portion, which is provided avoiding the fall prevention piece,
The optical fiber wiring port is provided separately at different locations of the optical fiber wiring portion,
A plurality of optical fibers drawn from the termination unit on one side of the optical wiring unit into the unit main body via the optical fiber wiring port (41) at the end in the extending direction of the optical fiber wiring portion, The fiber wiring unit is sorted from a plurality of optical fiber wiring ports (42) provided in a side portion other than the end portion in the extending direction, and is drawn out to a termination unit on the other side of the optical wiring unit. light wiring system to. In the optical interconnection system according to claim 1, wherein the optical fiber wiring unit different extension direction end optical fiber distribution port provided in (41), the sides other than the extending direction end portion of the optical fiber wiring unit An optical wiring system characterized in that the opening direction is different from that of the optical fiber wiring port (42) provided on the optical fiber. An optical wiring unit (A) having an extra length accommodating portion (1) for accommodating an extra length of the optical fiber (120) and an optical fiber wiring port (4) through which the optical fiber is passed is an optical fiber (101, 102). ) Is provided between the upper and lower termination units provided with an optical connector (110) that can be connected to the connector,
Both ends excess length of optical fiber that is a connector connected to the optical connector of the termination units on both sides of the optical wiring unit is accommodated in the optical wiring unit, both ends drawn from the optical fiber wiring port of the optical fiber is the are switchably connector wherein both sides of the optical wiring unit to the optical connector of the termination units,
The optical wiring unit (A) is provided in a unit main body (U) into which an optical fiber is drawn, an extra length accommodating portion (1) for accommodating an extra length of the optical fiber, and one side portion of the unit main body, An optical fiber wiring portion (2) extended so that the optical fiber drawn out from the extra length storage portion is wired;
A fall prevention piece (31) that is provided on one side of the optical fiber wiring portion and protrudes from a side of the optical fiber wiring portion facing the outside of the unit main body to prevent the optical fiber from dropping from the optical fiber wiring portion. And an optical fiber wiring port (4) through which the optical fiber is drawn out of the unit main body from the optical fiber wiring portion, which is provided avoiding the fall prevention piece,
The optical fiber wiring port is provided separately at different locations of the optical fiber wiring portion,
A plurality of optical fibers drawn from the termination unit on one side of the optical wiring unit into the unit main body via the optical fiber wiring port (41) at the end in the extending direction of the optical fiber wiring portion, characterized that you have drawn are sorted from a plurality of optical fibers interconnect port provided on a side other than the extending direction end portion of the fiber distribution unit (42) to the termination units on the other side of the optical wiring unit Optical distribution board (P).

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