JP2003241035A - Optical fiber cord and collection type optical fiber cord using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical fiber cord which can easily be identified even when many optical fiber cords are present and a collection type optical fiber cord using it. <P>SOLUTION: The optical fiber cord is characterized by that a plurality of identification symbols 212 are added to the jacket 211 of the optical fiber cord 210 having a core inside at specified intervals along the length of the optical fiber cord 210 and the identification symbols 212 each consist of a two-digit number and are longitudinal along the length of the optical fiber cord 210 and reversed in vertical direction to adjacent ones at the specified intervals; and a plurality of color dots 213 of an identification color are added toe the jacket 211 of the optical fiber cord 210 at specified intervals along the length of the optical fiber cord 210. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber cord and a collective type optical fiber cord using the same.

[0002]

2. Description of the Related Art A conventional optical distribution board is a connector connection board in which a large number of optical connector adapters are arranged, and a holding board for holding unconnected optical fiber cords among optical fiber cords with optical connector plugs. The following three operations are performed in connection and connection change. (1) Connect the optical connector plug of the optical fiber cord held in the holding board to the optical connector adapter at any position on the connection board. (2) Pull out the optical connector plug of the optical fiber cord connected to the optical connector adapter at any position on the connection board, and change the connection to another optical connector adapter. (3) Pull out the optical connector plug of the optical fiber cord connected to the optical connector adapter at an arbitrary position on the connection board and hold it in the storage board.

Further, there is a collective type optical fiber cord such as an optical fiber cable. This aggregated optical fiber cord is configured by binding a plurality of optical fiber cords and bundling them into a unit, and collecting a plurality of the units. In such a collective type optical fiber code, an identification symbol is directly printed on the outer cover of the optical fiber code so that the optical fiber code can be identified in each unit,
A ring with an identification mark is attached to the jacket of the optical fiber code.

By the way, as the optical fiber communication network expands, the connection of the congested wiring in the wiring board is frequently changed. Therefore, in the vicinity of the alignment board for accommodating the collective optical fiber cords as described above. In the portion, the optical fiber cords for which the connection is changed and the optical fiber cords for which the connection is released and are accommodated in the storage board are concentrated. Therefore, in the collective optical fiber cord as described above, it is extremely important to surely identify each optical fiber cord.

In addition, in an equipment center installed in an advanced optical communication network, information about optical wiring in the equipment center for connecting an optical fiber outside the center and a transmission device in the center is provided. An optical wiring system is used to manage the optical fiber and operate the optical wiring efficiently.
Here, a conventional optical fiber cable terminating device (FTM) used in such a system is used.
odule) example is explained below. Generally, the FTM is installed at the connection point between the subscriber optical fiber cable and the in-house optical fiber cable of the facility center station building. As a conventional example, IEICE technical report CS95-50, CS95-16, pp
59-66 Some of them are described in "Inspection for high-speed and large-capacity technology for optical line test system".

FIG. 29 shows the structure of the conventional facility including such FTM, and FIG. 30 shows the arrangement of the facility within the facility center. In the figure, 1 is FTM, 2 is an optical coupler, 3 is an optical fiber selector (FS: Fiber Selector), 4 is a test branch optical fiber from the optical coupler 2, 5 is an optical multiplexer / demultiplexer,
6 is an optical filter on the transmission device side, 7 is an optical subscriber line terminal device for communication, 8 is a video optical subscriber line terminal device, 9 is an optical subscriber line terminal device accommodation rack, 10 is a star coupler rack, Reference numeral 11 is a test equipment module (TEM: Test Equipment Module), 12 is a test equipment, 13 is an optical fiber selection device control and test equipment selection device (FTES), 14 is an FS master side optical fiber, 1
5 is a first in-house optical fiber cable, 16 is a second in-house optical fiber cable, 17 is a subscriber optical fiber cable,
Reference numeral 18 is a subscriber side optical filter, 19 is a communication optical subscriber line terminating device, and 20 is a video optical subscriber line terminating device.

A mode of providing communication and video services via an optical fiber will be described with reference to FIG. In order to provide this service with high reliability, an FTMl, an optical subscriber line terminal equipment housing 9, a star coupler rack 10, and a TEM 11 are installed in the facility center. The 1.3 μm band communication light output from the communication system optical subscriber line terminal device 7 that provides communication, and the 1.5 output from the video system optical subscriber line terminal device 8 that provides the video service.
The communication light in the 5 μm band is transmitted from the first in-house optical fiber cable 15
The light is incident on the star coupler rack 10 via.

In the optical multiplexer / demultiplexer 5 of the star coupler frame 10, the communication light in the 1.3 μm band and the communication light in the 1.55 μm band are wavelength-division-multiplexed, and the wavelength-divided communication light is equally distributed to the multiple output port. To be done. Communication light output from each port of the optical multiplexer / demultiplexer 5 is incident on the FTM 1 via the second in-house optical fiber cable 16. The communication light incident on the FTM 1 passes through the optical coupler 2 that multiplexes and demultiplexes the test light, and through the subscriber optical fiber cable 17, the communication optical subscriber line terminating device 19 and the video optical subscriber line termination. The wavelength is demultiplexed by the device 20 and provided as a communication and video service.

A method of testing an optical fiber from within the facility center during installation and maintenance of the optical fiber cable will be described below. Optical coupler 2 by FS3 in FTM1
From the test branch optical fiber 4 and the FS mass optical fiber 14 connected to the test equipment 12 in the TEM 11.
And are selectively optically coupled. In addition, FT in TEM11
The optical pulse tester in the test apparatus 12 is selected by ES13. As described above, the test light from the optical pulse tester is incident on the subscriber optical fiber cable 17, and the loss distribution measurement and the fault position search are quickly performed.

At the time of performing the test, the test light is used as the communication optical subscriber line terminating device 19 and the video optical subscriber line terminating device 2.
A subscriber-side optical filter 18 that blocks the test light and transmits the communication light is installed immediately in front of the communication-system optical subscriber line terminating device 19 and the video-system optical subscriber line terminating device 20 in order to prevent the light from entering 0. To be done. Further, the test light and the image-based optical subscriber line terminal equipment 8 are output to the communication optical subscriber line terminal equipment 1.
The test light and the communication light in the 1.55 μm band are blocked in order to prevent the reflected light of the communication light in the 55 μm band from entering.
The transmission device side optical filter 6 that transmits communication light in the μm band is
The optical multiplexer / demultiplexer 5 is installed at the input port for communication light in the 1.3 μm band.

FIG. 31 is a diagram showing the structure of a conventional FTM 1 including the optical coupler 2 and the FS 3, and the portions corresponding to the respective portions in FIG. 29 are designated by the same reference numerals. Figure 31
In the figure, 21 is a surplus length distribution member, and 22 is a surplus length processing shelf. On the left side of the FTM 1, a plurality of optical couplers 2 are installed side by side in each stage, and a test branch optical fiber 4 branched from each optical coupler 2 is connected to an FS 3 arranged at the bottom. Further, on the right side, an extra length distributing member 21 and an extra length processing shelf 22 for accommodating the extra connection length of the second in-house optical fiber cable 16 are mainly arranged,
An extra length storage space is secured.

FIG. 32 is a diagram showing the structure of a connection portion in a conventional FTM, and the portions corresponding to the respective portions in FIGS. 29 and 31 are designated by the same reference numerals. In FIG. 32, 23 is an optical connector adapter, 24 is an optical connector, and 2
Reference numeral 5 is a single-core tape core connecting portion. The optical coupler 2 is preliminarily attached with the single-core tape core connecting portion 25 and the optical connector 24. At the start of the service, the subscriber optical fiber cable 17 and the FS master side optical fiber 14 are connected to the optical coupler 2. Then, the optical connector 24 on the second optical fiber cable 16 side is connected to the optical connector adapter 23 connected to the optical coupler 2 to start the service.

[0013]

However, in the conventional collective optical fiber cord, although the optical fiber cord can be identified in each unit, the identification code is the same for each unit, and therefore the unit package is not included. If the binding is released, there is a problem that it becomes difficult to specify the target optical fiber cord.
In particular, in the collective type optical fiber cord used for wiring in the wiring board as described above, wiring or rewiring may be performed in different directions on a core-by-core basis, and thus the constrained unit cannot be wired as it is. , Could not be used.

The present invention has been made in view of the above circumstances, and an object thereof is an optical fiber code which can be easily identified even if a large number of them exist, and an aggregate type optical fiber code using the same. To provide.

[0015]

In order to solve the above problems, the present invention provides the following optical fiber cord and a collective type optical fiber cord using the same. That is, the optical fiber cord according to claim 1 of the present invention is characterized in that the outer cover is provided with the identification mark and the identification color. With this optical fiber cord, the target optical fiber cord can be easily identified and the connection can be changed quickly. As a result, it becomes possible to greatly improve the workability in the wiring board and provide the service to the subscribers promptly and accurately for the future progress of optical communication.

An optical fiber cord according to a second aspect of the present invention is the optical fiber cord according to the first aspect, characterized in that a plurality of the identification symbols are provided at predetermined intervals in the circumferential direction or the longitudinal direction of the jacket. There is.

An optical fiber cord according to a third aspect is the optical fiber cord according to the first or second aspect, wherein the identification symbol is a numeral, a letter or a combination thereof.
It is characterized in that the symbol is oriented vertically or laterally with respect to the longitudinal direction of the jacket, and the vertical directions of the symbols adjacent to each other at a predetermined interval are opposite to each other.

An optical fiber cord according to a fourth aspect is the optical fiber cord according to the first aspect, characterized in that a plurality of the identification colors are provided at predetermined intervals along the circumferential direction or the longitudinal direction of the jacket. There is.

An optical fiber cord according to a fifth aspect is the optical fiber cord according to any one of the first to fourth aspects, wherein a tag is attached to the outer cover and an identification mark is formed on the tag. I am trying.

A collective optical fiber cord according to a sixth aspect of the present invention is a collective optical fiber cord that is configured by assembling a plurality of units that bundle a plurality of the optical fiber cords according to any one of the first to fifth aspects. The identification color of the optical fiber code is different for each unit, and the identification symbol of the optical fiber code is different at least in the unit.

In this collective type optical fiber cord, the optical fiber cord of the target unit can be easily discriminated by the identification color even if the covering of the optical fiber cable and the restraint of each unit are released, and further, , The target single optical fiber cord can be easily selected by the identification code, and the connection can be quickly changed. As a result, it becomes possible to greatly improve the workability in the wiring board and provide the service to the subscribers promptly and accurately for the future progress of optical communication.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] FIG. 1 shows a first embodiment of the present invention.
FIG. 2 is a configuration diagram showing an optical distribution board according to the embodiment of the present invention. In FIG. 1, 101 is a wiring board body, and 102 is a wiring board body 10.
1 is a connector connection board installed at a predetermined position, 103 is a holding board installed at another predetermined position of the wiring board body 101, 1
Reference numeral 04 is an optical fiber cord having an optical connector plug 105 attached to its end, 106 is a housing portion for pulling the optical fiber cord 104 (or optical fiber cable) into the wiring board body 101, and 107 is a connector connection board of the wiring board body 101. It is an alignment board installed between 102 and the holding board 103.

The connector connection board 102 is an optical connector adapter 10 for connecting the optical connector plugs 105 to each other.
A large number of 8 are arranged. The holding board 103 includes a plurality of locking portions (not shown) for locking the optical connector plug 105, and the optical fiber cord 1 drawn from the housing portion 106.
Of 04, the unconnected optical fiber cord 104 is reserved. The alignment board 107 is configured by arranging a plurality of alignment members 110 in a vertical direction via an alignment member attachment frame 109.

FIG. 2 shows the details of the aligning member 110. The aligning member 110 has a generally U-shape as a whole, and at least one optical fiber cord is provided in each of the two opposing arm portions 111 and 112 in a substantially horizontal direction. Optical fiber cord passage ports 113 and 114 capable of being housed and held are provided. In addition, slit-shaped (or openable / closable) openings 113a and 114a are formed on the sides of the passage openings 113 and 114 so that the optical fiber cord 104 can be taken in and out. Therefore, a plurality of optical fiber cord passing filters 113 and 114 are arranged vertically on the aligning board 107.

In the above structure, the optical fiber cord 104 drawn into the wiring board main body 101 from the accommodating portion 106.
Are all passed through one of the optical fiber cord passage ports 113 (inlet side) of the alignment board 107, and among the optical fiber cords 104, those to be connected (in use) are the optical fiber cord passage ports 114 (outlet). Side), then is routed to the connector connection board 102 side and connected to the optical connector adapter 108, and the retained object is routed to the retaining board 103 side without being passed through the passage port 114. It is withheld (locked to the locking part).

When connecting the optical fiber cord 104 on hold, the optical connector plug 1 is pulled from the locking portion of the holding board 103.
05 is removed, and the optical fiber cord 104 is aligned with the alignment board 10
After pulling it around in the vicinity of 7 to release the entanglement, the optical connector plug 105 is connected to an arbitrary optical connector adapter 108 of the connector connection board 102 and inserted into the optical fiber cord passage opening 114 from the opening 114a. Similarly, the optical fiber cord 104 connected to the connector connection board 102
To another optical connector adapter 108 or holding board 103.
Can be connected to.

By accommodating the optical fiber cords 104 for each optical fiber cable in each alignment member 110, the optical fiber cords between the optical fiber cables can be separated, and the entanglement of the optical fiber cords 104 can be avoided. . In addition, an alignment board 1 in which a large number of alignment members 110 are arranged
By using 07, the optical transmission characteristics in the optical wiring board can be kept stable, so that the density of the optical wiring board can be increased as compared with the conventional one.

FIG. 3 shows another example of the aligning member, in which one arm portion is provided with two optical fiber cord passage openings. That is, in the figure, reference numeral 120 denotes an alignment member, which has an approximately U-shape as a whole, and one arm portion 12
The optical fiber cord passage port 123 similar to the above is provided in the first unit 1, and the optical fiber cord passage ports 124 and 125 similar to the above are provided in the other arm portion 122. Further, above the passage openings 123, 124, 125, openings 123a, 124a, 125a similar to the above are formed.

In the above structure, the optical fiber cord 104 pulled into the main body 101 of the wiring board from the housing portion 106.
Are all passed through the optical fiber cord passage port 123 (inlet side), and among the optical fiber cords 104, those to be connected (in use) are the optical fiber cord passage ports 124.
After being passed through the (exit side), it is routed to the connector connection board 102 side and connected, and the retained one is passed through the optical fiber cord passing block 125 (outlet side), and then the holding board 103.
It is routed to the side and held.

When connecting the optical fiber cord 104 on hold, the optical connector plug 105 is removed from the locking portion of the holding board 103, and the optical connector plug 105 is brought to the position of the passage opening 125 of the aligning member 120. After pulling the optical fiber cord 104 near the alignment board 107 to release the entanglement, the optical fiber cord 104 is pulled out from the optical fiber code passage opening 125 through the opening 125a, and the optical connector plug 105 is attached to the optical connector adapter of the connector connection board 102. 10
8 and is inserted into the optical fiber cord passage opening 124 from the opening 124a. Similarly, the connector connection board 102
It is possible to change the connection of the optical fiber cord 104 connected to the optical fiber cord to another optical connector adapter 108 or the holding board 103.

FIG. 4 shows still another example of the aligning member. Here, an example in which the entire shape is substantially mouth-shaped, and the optical fiber cord is passed through the main body of the optical distribution board in the front-rear direction. Show. That is, in the figure, reference numeral 130 is an alignment member, which has an overall mouth shape, and the one portion 131 is provided with the same optical fiber cord passage block 133 as described above.
The other optical fiber cord passage openings 134 and 135 are provided in the other portion 132 facing the one portion. Further, the passage openings 133, 134 and 135 are formed with openings 133a, 134a and 135a similar to the above. Here, the optical fiber cord passage ports 134 and 135 correspond to the optical fiber cord passage ports 124 and 125 of FIG. 3, and the action and effect thereof are the same as in the case of FIG.

The optical fiber cords housed in the alignment member include optical fiber cords in the optical fiber cable as well as optical fiber cords connected to optical components. In this case, the same operation as described above can be performed by collecting a certain number of optical fiber cords connected to the optical components and storing them in the aligning member.

By using the aligning member when connecting or changing the connection in this way, the entanglement of the optical fiber cords can be released, and the optical fiber cords in use and on hold can be separated. Therefore, even when the connection and the connection change are repeated, the entanglement of the optical fiber cord can be avoided.

[Second Embodiment] An optical fiber cord according to a second embodiment of the present invention and an aggregate type optical fiber cord using the same will be described with reference to the drawings. FIG. 5 is an external view showing an example of an optical fiber cord according to a second embodiment of the present invention, FIG. 6 is a schematic configuration diagram of a collective optical fiber cord using the optical fiber cord of FIG. 5, and FIG.
FIG. 7 is an explanatory diagram illustrating a connection state of the collective optical fiber cord of FIG. 6 to a wiring board.

As shown in FIG. 5, an identification code 21 is attached to an outer cover 211 of an optical fiber cord 210 having a core wire inside.
2 are provided along the longitudinal direction of the optical fiber cord 210 at predetermined intervals (preferably 20 to 50 mm intervals). The identification symbol 212 is composed of a two-digit number and is oriented vertically with respect to the longitudinal direction of the optical fiber cord 210, and the vertical directions adjacent to each other at a predetermined interval are opposite to each other. Further, the outer cover 211 of the optical fiber cord 210 is provided with a plurality of color dots 213, which are identification colors, at predetermined intervals (preferably 20 to 50 mm intervals) in the longitudinal direction of the optical fiber code 210.

As shown in FIG. 6, a plurality of optical fiber cords 210 as described above are bound together to form a unit 3
00, and a plurality of these units 300 are combined to form a collective optical fiber cord 310 (see FIG. 6A), or an optical fiber cable which is the collective optical fiber cord 310 provided with a jacket 321. 320 is configured (see FIG. 6B).

As described above, the optical fiber cord 210
If the color dots 213 of the unit 300 are made different for each unit 300 and the identification symbol 212 of the optical fiber code 210 is made different in the unit 300, the outer cover 321 of the optical fiber cable 320 and the binding of each unit 300 are restrained. Even in the released state, the optical fiber cord 210 of the target unit 300 can be easily discriminated by the color dot 213, and further, the target single-core optical fiber cord 210 can be easily discriminated by the identification symbol 212. be able to.

For this reason, as shown in FIG.
One end side of each optical fiber cord 210 of the collective optical fiber cord 310 is individually wired to one connection board 202, and the collective optical fiber cord 310 is arranged on the alignment board 203.
The other end side of each optical fiber cord 210 of each of the
The one end side of the optical fiber cable 320
Of the optical fiber cords 210 are wired to the external system, the other end of the optical fiber cords 210 of the optical fiber cable 320 are wired to the storage board 204, and the other end of the alignment board 203 is connected to the storage board 204. Optical fiber cable 32 housed
Even when the other end side of the optical fiber cord 210 of 0 is changed, it is possible to easily select the intended single optical fiber cord 210 by the color dot 213 and the identification symbol 212 as described above. , The connection can be changed quickly.

Therefore, since the workability in the wiring board 201 can be greatly improved, it is possible to provide the service to the subscribers promptly and accurately in the future progress of optical communication. .

Further, as shown in FIG. 5, since the outer cover 211 of the optical fiber cord 210 is provided with a plurality of identification symbols 212 and color dots 213 at predetermined intervals along the longitudinal direction, it is related to the longitudinal position. Can be easily identified without.

Further, as shown in FIG.
Are vertically oriented with respect to the longitudinal direction of the optical fiber cord 210, and the vertical directions adjacent to each other at predetermined intervals are opposite to each other. Therefore, the optical fiber cord 210 can be visually recognized from either side in the circumferential direction. Can be done easily.

In this embodiment, the optical fiber cord 210 in which a plurality of color dots 213 are attached to the outer cover 211 at a predetermined interval along the longitudinal direction is used, but as shown in FIG. It is also possible to use the optical fiber cord 220 in which the color line 223 as the identification color is continuously attached to the object 211 in the longitudinal direction.

Further, as shown in FIG.
10 and a plurality of color dots 213 are attached to the outer cover 211 at predetermined intervals in the circumferential direction (preferably at two locations at equal intervals in the circumferential direction), or as shown in FIG.
As shown in FIG.
Is a plurality of optical fiber cords 240 attached to the outer cover 211 at predetermined intervals in the circumferential direction (preferably at two locations at equal intervals in the circumferential direction), these optical fiber cords 230,
Even if 240 is twisted, visual confirmation can be easily performed.

Further, in the present embodiment, the optical fiber cord 210 in which the jacket 211 is provided with the identification symbols 212 which are vertically oriented with respect to the longitudinal direction and whose vertical directions adjacent to each other at a predetermined interval are opposite to each other. By using, it is possible to easily perform visual confirmation from either side in the circumferential direction of the optical fiber cord 210.
As shown in FIGS. 1 and 12, optical fiber cords 250 and 260 are used which are attached to the outer cover 211 with identification symbols 252 which are lateral to the longitudinal direction and whose vertical directions adjacent to each other at predetermined intervals are opposite to each other. Thus, it is possible to easily perform visual confirmation from either side in the longitudinal direction of the optical fiber cord 210.

In the present embodiment and the other examples described above, the optical fiber cord 2 in which the color dots 213 and the color lines 223 are attached to the jacket 211 along the longitudinal direction.
10 and 220 have been described, for example, FIGS.
As shown in FIG. 4, it is possible to use the optical fiber cords 270 and 280 in which the outer cover 271 made of a color resin is used and the outer appearance color of the outer cover 271 is an identification color.

Further, in the present embodiment, the optical fiber cord 210 in which the identification code 212 composed of a two-digit number is attached to the outer cover 211 is used, but the identification code composed of, for example, characters or a combination of characters and numbers is used. It is also possible to use an optical fiber cord in which a jacket is attached. It is sufficient that the identification symbol 212 is different at least in the unit 300, but it may be different in the optical fiber cords of all the units.

[Third Embodiment] An optical wiring system according to a third embodiment of the present invention will be described with reference to the drawings. [First Embodiment] FIG. 15 is a diagram showing a configuration of in-house equipment including an integrated optical wiring system, and FIG. 16 illustrates a connection form between the integrated optical wiring system and other equipment in an equipment center. It is a figure.

In the figure, 401 is an integrated optical wiring system, 4
02 is an optical coupler, 403 is an optical fiber selection device (F
S), 407 is a communication system optical subscriber line terminal device, 408 is a video system optical subscriber line terminal device, 409 is an optical subscriber line terminal device housing rack, 410 is a star coupler rack, and 411 is a test device rack. (TEM), 415 is an in-house optical fiber cable, 4
Reference numeral 17 is a subscriber optical fiber cable, 426 is a test access function unit, 427 is a cross-connect function unit, 428 is a splitter function unit, 429 is an optical wiring function unit, 430 is an optical fiber selection function unit, and 431 is a work support mobile terminal. , 43
Reference numeral 2 is an intermediate optical wiring management function unit, 433 is a general optical wiring management unit, and 434 is a data communication network.

435 is another equipment operation system, 436 is an integrated optical wiring module (IDM: In
integrated distribution module) 437, an optical wiring management function unit that manages optical wiring information, component information, and line information in the integrated optical wiring module, 439 is an inter-device interface, and 471 is an optical test function unit and a monitor function unit. Measuring device selection function unit for selecting optical fiber contrast function unit, 47
2 is an optical test function unit for optically testing the optical fiber of the optical fiber cable, 473 is a monitor function unit for monitoring communication light and test light, 474 is an optical fiber comparison function unit for comparing the optical fibers, and 480 is a terminal station. Device side termination function section,
A terminal device side termination function unit 481 is provided.

The first in-house optical fiber cable 415 from the optical subscriber line terminal equipment accommodating rack 409 is connected to the first connection end of the integrated optical wiring system 401, and the second optical fiber cable 415 of the integrated optical wiring system 401 is connected. A subscriber optical fiber cable 417 is connected to the connection end. The integrated optical wiring system 401 uses the TEM through the inter-device interface 439.
411 is connected.

The optical wiring function unit 429 has a cross-connect function unit 427 and a splitter function unit 42 in which a plurality of the first in-house optical fiber cables 415 are provided in the IDM 436.
Distribute into 8. The split function unit 428 distributes the communication light from the optical subscriber line terminal devices 407 and 408 to a plurality of output ports. The cross-connect function unit 427 reconnects an arbitrary optical fiber from the optical wiring function unit 429 and the splitter function unit 428 and an arbitrary optical fiber of the second optical fiber cable 417. Test access function unit 426
Inputs and outputs the test light to and from the optical fiber of the first optical fiber cable 415 and the optical fiber of the second optical fiber cable 417. The optical fiber selection function unit 430 selects the test light input / output port of the test access function unit 426.

With such an integrated optical wiring system 401, in addition to integrating a plurality of functions of conventional equipment, a new optical wiring function unit 429 is provided to simplify the wiring route in the equipment center. It is possible to achieve economical efficiency of the device by integrating the functions.

That is, as described above with reference to FIG. 29, in the conventional equipment configuration, the OLT rack 9-star coupler rack 1 is used.
Since there are a plurality of routes in the in-house optical wiring between 0-FTM1, a large amount of the first in-house optical fiber cable 415 and the second in-house optical fiber cable 416 are required, which causes serious congestion. On the other hand, in the embodiment of the present invention described with reference to FIGS. 15 and 16, the OLT rack 40 is used.
All IDs for optical fiber cables 415 in the first station from 9
Since the optical wiring function unit 429 in the M436 is collectively wired,
Simple optical wiring using the multi-fiber optical fiber cable 415 in the first place becomes possible. Further, the conventional optical wiring between the star coupler rack 10 and the FTM1 is absorbed in the IDM 436 in the embodiment of the present invention, and the integrated optical wiring system 4 is provided.
01 is under control.

Second Embodiment In this embodiment, the optical fiber selection function unit 430 includes an optical test function unit 472, a monitor function unit 473, an optical fiber comparison function unit 474, and an optical test function unit and a monitor function unit. And an optical test module 411 including a measuring device selection function unit 471 for selecting the optical fiber contrast function unit. Optical test function unit 472
Has a function of optically testing the optical fiber of the optical fiber cable, the monitor function unit 473 has a function of monitoring the communication light and the test light, and the optical fiber comparison function unit 474 has a function of comparing the optical fibers. By this example,
It is possible to execute a test for new installation of the subscriber optical fiber cable 417 and a test for maintenance.

[Third Embodiment] FIGS. 17 and 18 are views for explaining a third embodiment of the present embodiment. In the figure,
440 is a basic module of IDM436, 441 is an ID
M436 expansion module, 442 test access unit, 443 alignment board, 444 holding board unit, 44
5 is an insertion / removal optical fiber, 446 is a wiring unit, 447 is a connection board, 448 is a local optical fiber cable fixing portion, 44
Reference numeral 9 is a holding plate, and 450 is a third in-house optical fiber cable.

The basic module 440 of the IDM 436 in this embodiment comprises a test access function unit 426, a cross-connect function unit 427, a splitter function unit 428, an optical wiring function unit 429, and an optical fiber selection function unit 430. The 441 includes a test access function unit 426, a cross connect function unit 427, a splitter function unit 428, and an optical fiber selection function unit 430.

The test access unit 442 has a test access function unit 426 and an optical fiber selection function unit 430, the insertion / removal optical fiber 445 and the connection board 447 constitute a cross-connect function unit 427, and the wiring unit 446 is one IDM basic module. It has a wiring function of wiring from 440 to a plurality of extension modules 441. By using the extension module 441 to cope with an increase in the number of accommodation fibers, the management function of the optical wiring in the communication facility center can be held regardless of the increase in the number of accommodation fibers.

The connection of the optical wiring is usually replaced by the IDM436.
The cross-connect function unit 427 therein is in charge, but in this case, it is executed by changing the connection of the optical fiber 445 that is connected to the connection board 447. In the conventional FTM, since the number of accommodated cores is finite, there is a possibility that a case of connection change that cannot be solved inside a single FTM will occur, but according to this embodiment, in the equipment center Since the integrated optical wiring system 401 collectively manages the above optical wiring, such a problem does not occur.

Further, according to the present embodiment as described above, since the connection change outside the range of the cross-connect function unit 427 can be executed by the optical wiring function unit 429, the communication system optical subscriber line terminal equipment 407 and the subscriber. The optical wiring between the system optical fiber cable 417 and between the video optical subscriber line terminal device 408 and the subscriber optical fiber cable 417 can be completely and selectively connected. Further, according to this embodiment, since the conventional star coupler rack 10 and the FTM 1 are integrated, the space occupied by the device is reduced,
It is possible to increase the density of the cords accommodated in the facility center.

Next, referring to FIG. 18, a connection form between the IDM 436 and the conventional on-site equipment in the integrated optical wiring system of the present invention will be described. The conventional FTM1 is connected to the optical multiplexer / demultiplexer in the star coupler rack 410 via the second internal optical fiber cable 416, and the star coupler rack 410 is wired in the IDM basic module 440 via the third internal optical fiber cable 450. Connect to unit 446.

According to this embodiment, by accommodating the conventional in-house equipment together, the integrated optical wiring system 401 of this embodiment collectively manages even the in-house optical cable wiring to which the conventional in-house equipment is connected. This makes it possible to simplify the wiring route in the facility center and avoid congestion in the facility center wiring.

[Fourth Embodiment] In this embodiment, the optical wiring management function unit 437 includes a work support portable terminal 431, an intermediate optical wiring management function unit 432, and a total optical wiring management unit 433.
It is equipped with The intermediate optical wiring management function unit 432 is an IDM.
It has a database for managing optical wiring information, component information, and line information in 436, and has a function of instructing connection change work.

The work support portable terminal 431 has an information exchange function of inputting work contents such as connection change by referring to the database of the intermediate optical wiring management function unit 432, and assists the worker in connection change work. The integrated optical wiring management unit 433 integrates and manages the optical wiring information from the plurality of intermediate optical wiring management function units 432, and manages the connection with another operation system 435. In this embodiment, the optical wiring management function unit 437 enables efficient facility information management, cooperation with other operation systems 435, and work support for connection replacement workers.

[Fifth Embodiment] In this embodiment, a jumper system using an alignment board is used as the cross-connect function unit 427. FIG. 19 is a diagram for explaining a jumper system using an alignment board, 423 is an optical connector adapter, 424 is an optical connector, 443 is an alignment board, 445 is an insertion / extraction optical fiber, 447 is a connection board, and 449 is a holding board. Four
Reference numeral 51 is a cord stopper, and 454 is an extra length storage portion.

A method for changing the connection of the inserting / removing optical fiber 445 using the aligning board 443 will be described below. Optical fiber 4
Since 45 is loosely held on the aligning plate 443,
The extra lengths of the insertion / extraction optical fibers 445 are distributed and accommodated in the insertion / extraction optical fiber extra length storage portions 454 on the front and back of the apparatus.
In addition, when changing the connection, the extra length storage section 4 on the front of the device is used.
Even if 54 has a large number of extra lengths of the optical fibers 445 that can be inserted and removed, the optical connector 424 is provided until just before the surface of the alignment board 443.
Therefore, operability and visibility can be secured.

The connection of the insertion / removal optical fiber 445 is replaced by the first optical connector adapter 42 provided in the connection board 447.
Optical connector 42 of the optical fiber 445 that is fixed to
4 is replaced with the second optical connector adapter 423 included in the connection board 447.

FIG. 19A is a diagram showing a connection state,
The optical fiber 44 that can be inserted into and removed from the first optical connector adapter 423
5 optical connector 424 is fixed. FIG. 19 (b)
Then, from the first optical connector adapter 423 to the optical connector 4
I'm pulling out 24. In FIG. 19C, the optical connector 4
The optical fiber 445 from which the optical fiber 24 is pulled out
3 is pulled up from the back surface, and the light of the insertion / removal optical fiber 445 and the connector 424 are pulled back to just before the surface of the holding hole of the alignment board 443. As a result, it is possible to select a specific optical connector 424 from the front insertion / removal optical fiber surplus length storage portion 454 in which a large number of surplus length portions of the insertion / removal optical fibers 445 are stored.

In FIG. 19D, the optical connector 424 is selected and the insertion / removal optical fiber 445 is pulled out to the front surface of the alignment board 443 by a required length. At this time, the insertion / extraction optical fiber 445 is wired outside the other insertion / extraction optical fiber, and the optical connector 424 of the insertion / extraction optical fiber 445 is connected to the second optical connector adapter 423 included in the connection board 447. In FIG. 19E, the extra length portion of the insertion / removal optical fiber 445 is accommodated in the extra length storage portions 454 on the front surface and the back surface in a well-balanced manner so as to ensure operability and visibility.

According to the present embodiment, even if there is a surplus portion of the inserting / removing optical fiber, it is possible to easily select the inserting / removing optical fiber and the optical connector to be switched. Therefore, it is possible to shorten the operation time when changing the connection. You can

[Sixth Embodiment] In this embodiment, an insertion / removal optical fiber identification symbol using a bar code is attached to the position of the insertion / removal optical fiber 445 indicated by 453 in FIG. The mobile terminal 431 reads it. According to this embodiment, the search time for the insertion / removal optical fiber 445 is shortened, the work efficiency is improved, and the insertion / removal optical fiber 44 is
It becomes possible to prevent error in selection of item 5.

[Seventh Embodiment] In this embodiment, the connection board 447 and the holding board unit 444 are provided with a display section for displaying instruction data from the intermediate optical wiring management function section 432. FIG. 20 is a view showing a part of the connection board 447,
Adjacent to the arrayed optical connector adapter 423, LE
A display unit 452 including D is provided. Connection board 44
7 indicates the connection terminal on the connection board 447 that the operator should insert / remove, and the display section 452 provided on the holding board unit 444 indicates the insertion / extraction light that the operator should insert / remove. Point to fiber 445.

According to this embodiment, the search for each connection portion on the optical fiber connection board can be performed more reliably and quickly, the work efficiency at the time of the connection replacement work is improved, and the misidentification at the time of selecting the optical code is prevented. Will be possible.

[Eighth Embodiment] In this embodiment, a visible light source is connected to the optical fiber selection function section 430, and a bending imparting section for leaking visible light is provided in the insertion / extraction optical fiber 445. Visible light generated by the visible light source is inserted from the FS master side optical fiber, propagates to the insertion / extraction optical fiber 445 through the connection board 447, and is inserted into the front insertion / removal optical fiber extra length storage portion and the back insertion / extraction optical fiber extra length storage portion. It leaks to the outside at the bent portion of the housed insertion / removal optical fiber 445. The insertion / extraction optical fiber 445 can be identified by visually observing the leaked light.

As a result, when selecting the inserting / removing optical fiber 445, the inserting / removing optical fiber 445 can be selected from the rear surface of the aligning board 443 reliably and promptly, and the workability can be improved when performing the connection replacement work. In addition, erroneous operation can be prevented. Further, a semiconductor laser, a He-Ne laser, or the like can be used as the visible light source.

[Ninth Embodiment] In this embodiment, a cross-connect function unit 427 is applied with a connection change method that does not cause an erroneous operation. FIG. 21 is a diagram for explaining this embodiment, in which 403 is an optical fiber selection device (FS),
Reference numeral 417 is a subscriber optical fiber cable, 444 is a holding board unit, 445 is an insertion / extraction optical fiber, 447 is a connection board,
455 is a first optical coupler, 456 is a second optical coupler, 4
57 is an optical coupler A port, 458 is an optical coupler B port,
459 is an optical coupler C port, 460 is an optical coupler D port, 461 is an optical pulse tester, 462 is a visible light source, 46
3 is an optical monitor device, 464 is a first connection terminal, 465
Is a second connection terminal.

The signal light emitted from the add / drop optical fiber 445 is
The first connection terminal 464 on the connection board 447, the optical coupler B port 458 of the first optical coupler 455, and the optical coupler A port 457 of the first optical coupler 455 are sequentially passed to the subscriber optical fiber cable 417. To reach.

Since the optical couplers 455 and 456 have an optical branching function, the light inserted from the optical coupler A port 457 is branched to the optical coupler B port 458 and the optical coupler C port 459 and is inserted from the optical coupler B port 458. The added light is branched to the optical coupler A port 457 and the optical cover D port 460, and the light inserted from the optical coupler C port 459 is branched to the optical coupler A port 457 and the optical coupler D port 460 and from the optical coupler D port 460. The inserted light is branched to the optical coupler B port 458 and the optical coupler C port 459. Each optical coupler A port 457 is connected to a subscriber optical fiber cable 417.

Next, in the initial state, the insertion / removal optical fiber 445 is connected to the first connection terminal 464, and from this state, the insertion / removal optical fiber 445 is connected to the second connection terminal 465.
A case where the connection is changed to the state of being connected to will be described.

First, the operator of the on-site facility changes the network configuration change item including subscriber information, service information, etc. to the work support portable terminal 431 and the intermediate optical wiring management function unit 4.
32 or the integrated optical wiring management unit 433. Next, all connection change requests other than the intermediate optical wiring management function unit 432 are transferred to the intermediate optical wiring management function unit 432. The intermediate optical wiring management function unit 432 refers to its own database and performs the connection change operation with the insertion / removal optical fiber 44.
5, the first connection terminal 464 and the second connection terminal 465 are determined. The determined number of the optical fiber 445 for insertion / removal and the terminal numbers of the first connection terminal 464 and the second connection terminal 465 are transferred to the work support portable terminal 431, and the connection replacement worker performs the work according to this instruction.

Next, the intermediate optical line management function unit 432 is
The optical coupler D on the first optical coupler 455 with respect to S403
When a command for connecting the port 460 and the optical monitoring device 463 is issued and the FS 403 executes an operation in response to the command, the optical monitoring device 463 monitors the signal from the optical fiber 445 before connection change.

Next, the connection change operator selects the first connection terminal 464 indicated by the work support portable terminal 431, and confirms the insertion / extraction optical fiber 445 fixed to this. At this time, a reliable confirmation work can be performed by reading the identification symbol given to the insertion / extraction optical fiber 445 with the barcode reader provided in the work support portable terminal 431. When there is no error in the insertion / removal optical fiber 445 selected by the operator, the work support portable terminal 431 issues a release instruction of the insertion / removal optical fiber 445, and the operator confirms this and releases the insertion / removal optical fiber 445.

When the insertion / removal optical fiber 445 is released, the insertion / removal optical fiber 44 monitored by the optical monitor device 463.
The signal from 5 is cut off. The optical monitor device 463 reports this signal stop information to the intermediate optical line management function unit 432. Upon receiving this signal stop information, the intermediate optical wiring management function unit 432 issues a command to the FS 403 to connect the optical coupler D port 460 on the second optical coupler 456 and the visible light source 462, and in response thereto. When the FS 403 executes the operation, the visible light emitted from the visible light source 462 is emitted from the optical coupler B port 458 on the second optical coupler 456, that is, the second connection terminal 465. The worker confirms the second connection terminal 465 by the light emission of the connection board 447 and makes a confirmation report to the work support portable terminal 431. The confirmation report is transferred from the work support portable terminal 431 to the intermediate optical wiring management function unit 432.

Next, the intermediate optical wiring management function unit 432 is
The optical coupler D on the second optical coupler 456 with respect to S403
When the FS 403 executes an operation in response to a command for connecting the port 460 and the optical monitoring device 463, the optical monitoring device 463 waits for the signal insertion from the second connection terminal 465. Further, the intermediate optical wiring management function unit 4
32 instructs the worker to connect to the second connection terminal 465 of the connection board 447 via the work support portable terminal 431.
The worker connects the insertion / extraction optical fiber 445 to the second connection terminal 465 according to the instruction of the work support portable terminal 431.

The insertion / removal optical fiber 445 is used as the second connection terminal 4.
When normally connected to 65, the optical monitor device 463 receives the signal from the inserting / removing optical fiber 445, and reports to the intermediate optical wiring management function unit 432 that the connection is completed. Upon receiving the connection completion report, the middle optical fiber wiring management function unit 432 notifies the worker of the completion of the work via the work support portable terminal 431, instructs the FS 403 to move to the initial position, and further has a database owned by itself. Change the contents of. According to this embodiment, reliable and quick work can be performed.

[Tenth Example] FIG. 22 is a block diagram showing an optical wiring system of a tenth example of the present embodiment, and FIG. 23 is a block diagram showing an optical wiring board of the optical wiring system. 501 is an optical wiring board, 502 is a cross-connect function unit, 503 is an optical fiber alignment function unit, 504 is a holding unit,
505 is an optical jumper function unit having an optical splitter,
6 is a wiring accommodation function part, 507 is a terminal device side termination function part,
Reference numeral 508 denotes an optical jumper function unit having no optical splitter, 5
Reference numeral 09 denotes an optical fiber aligning board for accommodating a plurality of optical fiber aligning functional units 503, 510 denotes a terminal functional unit side terminating functional unit,
Reference numeral 511 is an optical fiber cable in the first station, 512 is an optical fiber cable for subscribers, and 513 is an optical subscriber line terminal equipment such as a communication optical subscriber line terminal equipment and a video optical adder line terminal equipment. The optical subscriber line terminal equipment housing rack for housing, 551 is a connector plug, and 552 is a splitter.

However, although FIG. 23 shows an example in which the optical jumper function section 505 having an optical splitter is used, an optical jumper function section 508 having no optical splitter may be used instead of the optical jumper function section 505. The terminal device side termination function unit 510 accommodates the first in-site optical fiber cable 511 connected to a plurality of optical subscriber line terminal devices and connects to the optical jumper function unit 508. Optical jumper function unit 508
Are roughly divided into those having a splitter function (FIG. 24) and those not having a splitter function (FIG. 25).

Here, FIG. 24 shows the optical jumper function section 50.
5 and FIG. 25 are schematic diagrams showing the optical jumper function unit 508, respectively. 560 is an input port, 561 is a splitter, 562 is an output port, and 563 is an optical filter. The splitter 561 has a function of distributing the communication light from the optical subscriber line terminal device to a plurality of ports, and the number of distributions is not particularly limited, but it is 4, 8, in relation to the optical subscriber line terminal device. 16 is useful.

Further, communication lights having different wavelengths in the communication system and the video system can be arbitrarily combined in the distribution number and mixed in the optical fiber of the output port. The optical jumper function unit 508 having no splitter function is used when the communication light from the optical subscriber line terminal device 513 is distributed to a specific subscriber without being distributed, and a plurality of input ports and outputs corresponding thereto are provided. Have a port. The optical jumper function part 505 having the splitter function and the optical jumper function part 508 not having the splitter function have the same mounting shape, so that they can be accommodated at arbitrary positions of the optical fiber alignment board 509.

The optical fiber alignment function section 503 has the following functions. (1) The optical fiber with an optical connector plug connected to the output ports of the optical jumper function units 505 and 508 is accommodated, and the optical fiber in use and the optical fiber in suspension are separated. (2) It has an output opening portion on the in-use side and the holding side. (3) The bend diameter is ensured so that the characteristics of the accommodated optical fiber are not deteriorated. (4) The optical fiber in use and the optical fiber in suspension can be replaced with the opening. (5) The accommodated optical fiber cannot be easily removed. (6) It has an optical fiber drawing function including a rotating mechanism. (7) There is a space where the identification information displayed on the optical fiber coating can be visually identified.

By completely separating the optical fiber in use connected to the Cucos connect function unit 502 from the optical fiber held in the holding unit 504, the characteristics of the optical fiber in use by the held optical fiber Does not adversely affect.
In addition, since there is a space for the drawing function and the visual identification, even if another optical fiber alignment function part 503 is stacked and accommodated, the optical fiber in use and the pending optical fiber of any optical fiber alignment function part 503 are retained. Visual identification of optical fibers can be performed. With these functions, the target optical fiber can be specified and the optical connector plug attached to the tip of the optical fiber can be pulled up to the vicinity of the optical fiber alignment function unit 503.

The optical connector plug that has been pulled by one hand is replaced with a new connection position of the cross-connect function unit 502. By this operation, the entanglement of the optical fiber can be avoided. In the conventional technique, the entanglement occurs every time the connection is changed, and thus the optical fiber accommodation density cannot be increased.

The optical fibers connected to the output ports of the optical jumper function parts 505 and 508 need to be covered with a covering material having a constant tension and bending rigidity. Are suitable. A flame-retardant plastic material was used as the coating material. A non-halogen resin such as a polyolefin resin, a polyamide resin, or a polyester resin was used as the flame-retardant plastic material. In addition, as the flame-retardant plastic material, a material containing a flame retardant containing no organic phosphorus in order to enhance flame retardancy was used.

Approximately 1 m for high-density accommodation of the optical distribution board
m optical code is useful. Optical jumper function unit 505
The number of cores of the optical fiber accommodated in (508) is 3
Those with 2 to 64 cores are excellent in operability and accommodation. As a visual identification method for optical fibers, this system displays identification symbols that represent information such as numbers. The identification code is a combination of the symbol and the number that represents the optical fiber core number, and the coating of the optical fiber is colored or color-printed to identify one particular core from the multi-core wires. The distinctiveness was improved by combining with the symbol display. By displaying one or more of the identification information in the outer peripheral direction of the optical fiber and continuously displaying it at a constant interval in the length direction,
It can be identified from any position of the optical fiber, and the identification symbol can be identified from any direction by combining horizontal orientation, vertical orientation, orthography, and inversion.

The optical fiber alignment board 509 has a function of accommodating a plurality of optical jumper function sections 505 (508). There are vertical accommodation method and horizontal accommodation method as accommodation methods.
The vertical accommodation method includes a method of accommodating one or more rows in the vertical direction or the diagonal direction, and the lateral accommodation method includes a method of accommodating one or more rows in the lateral or diagonal direction. Optical jumper function section 5
In order to make the length of the output optical fiber of 05 (508) constant and to allow wiring to any position of the cross-connect function unit 502, the vertical single-row accommodation method is useful. In this case, the optical jumper function unit 505 (508) is integrated with the optical fiber alignment function unit 503, and the optical fiber alignment plate 50 is integrated.
It is possible to store the lower parts of the 9 in order.
With this method, the optical jumper function unit 505 (508) can be added without adversely affecting the optical fiber being used.

In order to accommodate the extra length of the optical fiber which is being used in the vertical single-row accommodating system in the optical wiring accommodating function part, the accommodating positions of the cross-connect functional part 502 and the optical fiber aligning board 509 are the optical wiring board mounting height. It is possible because it is located above the central part of the. One end of the cross connect function unit 502 is connected to a subscriber by being connected to a subscriber optical fiber cable. Therefore, the optical fiber alignment function unit 503 and various optical jumper function units 505 (50
8) can be accommodated in the optical fiber alignment function unit 503, and various transmission services can be provided to the subscriber by reconnecting the cross connection function unit 502.

[Eleventh Embodiment] FIG. 26 is a configuration diagram showing an optical wiring system of an eleventh embodiment of the present embodiment. An optical wiring system in which an optical fiber alignment function section directly accommodates a first in-house optical fiber cable. Is an example. After accommodating the plurality of first in-site optical fiber cables 511 wired from the optical subscriber line terminal equipment accommodation rack 513 in the terminal device side termination function section 510, the optical fibers of the first in-site optical fiber cables 511 are inserted. It is accommodated in the optical fiber alignment function unit 503. The optical wiring board accommodating side of the optical fiber cable 511 has a structure in which an optical connector plug is attached to the tip of a single-core optical fiber.

This optical fiber alignment function unit 503 is shown in FIG.
It has the same function as the optical fiber alignment function unit shown in FIG.
However, since an optical fiber with an optical connector plug is installed in the optical fiber alignment function unit 503, it has a slit or an opening with a door as an insertion port for the optical fiber to facilitate the insertion of the optical fiber and to easily remove it. It is necessary to have a structure that does not exist. Applicable to the case where there is a one-to-one correspondence between the transmission service of the optical subscriber line terminal equipment and the subscriber, or to the optical wiring system that has the function of distributing the communication light between the subscriber optical fiber cable and the subscriber. it can.

[Twelfth Embodiment] FIG. 27 is a block diagram showing an integrated optical wiring system of a twelfth embodiment of the present embodiment, which is provided with an optical wiring board A (520) and an optical wiring board B (521). , An example of an integrated optical wiring system having an optical wiring management function and an optical test function. Of course, the configuration of the optical wiring board A (520) and the optical wiring board B (521) can also be applied as an optical wiring system. In the configuration of the optical wiring board A (520) and the optical wiring board B (521), a plurality of optical wiring boards A (520) can be accommodated in the optical wiring board B (521).

The optical distribution board B (521) is located between the subscribers accommodated in the plurality of optical distribution boards A (520) and the plurality of optical subscriber line terminal equipment accommodation racks 513, and has a function of distributing wiring. Have. In an optical distribution system without the optical distribution board B (521), it is necessary to connect a mesh-shaped optical fiber cable between the plurality of optical distribution boards A (520) and the plurality of optical subscriber line terminal equipments. In addition to the above, it is necessary to prepare the types of optical fiber cables from those with a small number of fibers to those with a large number of fibers. By installing this optical wiring board B (521), it becomes possible to carry out prior wiring of a multi-fiber optical fiber cable, and it is possible to avoid congestion of the optical fiber cable wiring.

The optical wiring board A (520) has the same function as that of FIG. 22, and the optical wiring board B (521) has the same function as that of FIG. An optical fiber cable 5 is provided between the optical distribution board A (520) and the optical distribution board B (521).
Connect at 16. The optical wiring board B (521) has an optical fiber alignment function section 503 for accommodating an optical fiber cable between racks, and the optical wiring board A (520) has an optical jumper function section.

The functions of the optical wiring system can be ensured also by these configurations, but by incorporating the optical test function, the maintenance and monitoring of the optical wiring from the optical subscriber line terminal equipment to the subscriber can be performed. . To provide the optical test function, the cross-connect function unit 50 of the optical distribution board A (520) is used.
In the optical test access function unit 514 and the plurality of optical test access function units 514 each having an optical coupler for inserting the test light for the optical test from the vicinity of 2 into the optical fiber of the optical subscriber line terminal device side or the subscriber side. This can be realized by incorporating an optical fiber selection function unit 530 that switches and inserts the test light, and an optical test function unit 533 that measures and analyzes the test light transmission and the test light return light.

Further, a monitor function unit 535 for monitoring communication light and an optical fiber core line comparison function unit 536 for performing optical fiber core line comparison can be incorporated. The component imparting the optical test function is the cross-connect function unit 502 of the optical wiring board A (520) or the optical wiring board B (521).
It can be stored under the optical fiber general function section.

A subscriber optical fiber cable is connected to one end of the test access function unit 514, and a cross-connect function unit 502 is provided at the other end face. On the side of the cross-connect function unit 502, multiple receptacles are mounted.
Conventionally, SC type receptacles have been applied, but in order to increase the packing density of the optical distribution board, it is possible to realize a cross-connect of 4000 terminals or more by applying a small MU type 16-series receptacle. it can.

The connection with the subscriber optical fiber cable is as follows.
It is possible to use an 8-core multi-core connector (MT type). For example, attach two 8-core connectors with a width of about 10 mm,
By matching with the continuous receptacles, it is possible to improve the accommodation density. The extra length of the optical fiber ribbon of the subscriber optical fiber cable is 10 mm wide and the test access function unit 5
A partition plate is placed in the center of 14 and accommodated on the left and right sides of the partition plate.
A 16-core multicore connector is useful for connection with the optical fiber selection device.

The test light uses a wavelength different from that of the communication light so as not to affect the communication. Further, in order to prevent the test light from affecting the transmission device, an optical filter is inserted in the optical wiring. In this system, an optical filter is inserted on the transmission device side of the optical jumper function unit 508.
By inserting the optical filter at this position, the number of optical filters can be reduced.

By applying an optical wiring management function unit 525 to these system configurations, a complicated optical wiring can be applied to the database system 524 of the computer, and an optical fiber, a cross connect function unit 502, an optical wiring function unit. 5
By reading the two-dimensional identification code 519 attached to 17 using the reading device 522, the information of the optical wiring can be registered in the database, and the wiring work can be supported.

The two-dimensional identification code can be attached to the optical fiber by attaching a movable tag on the optical fiber coating and applying or printing the identification code on the tag. it can. Bar codes are generally used as one-dimensional codes, but in high-density optical wiring systems such as this optical wiring system, it is necessary to reduce the diameter of the optical fiber. is necessary.

With this two-dimensional identification code, even if the size is 5 mm square or less, it is possible to display alphanumeric information of about 30 digit lines, and it is possible to make it smaller than a one-dimensional bar code. Since the two-dimensional weave code is small, it can be applied to the management of components.

The terminal position information of the optical receptacles of the cross-connect function section 502 and the optical wiring function section 517, and the terminal position information of the optical adapter are printed or pasted with a two-dimensional identification code on their respective protective caps, or a visual identification symbol indicating the terminal information. Can be achieved by displaying. The application of the two-dimensional identification code has an advantage that the database registration / change process can be automated.

[Thirteenth Embodiment] FIG. 28 is a block diagram showing an optical wiring system according to a thirteenth embodiment of the present embodiment. An optical wiring system in which an optical jumper function unit 505 and an optical fiber alignment function unit 503 are integrated. Is an example.

The inter-frame optical fiber cable 515 is connected to the input port of the optical jumper function section 505 by a connector, and the optical fibers distributed by the splitter 547 are inserted into the optical fiber alignment function section 503. The inserted optical fiber is held on the holding board 504 as the optical fiber 543 being held.

On the other hand, one end face of the test access function unit 514 is connected to the subscriber via the subscriber optical fiber cable 512. This test access function unit 514
The other end surface of is a cross-connect function unit 502. When providing a service to a subscriber, a specific optical fiber that is on hold is connected by the cross-connect function unit 502. In this case, the specific optical fiber connected in the identification space 544 is visually identified.

Since the optical fiber alignment function section 503 has the rotary drawing function 545, it is easy to visually identify the optical fibers. The visual identification of the optical fiber can be performed by the identification symbol 550 and the color identification 549. The optical fiber connected to the cross connect function unit 502 is
The optical fiber 542 in use is completely separated from the pending optical fiber and does not congest with the pending optical fiber.

Optical fiber and cross-connect function unit 502
By mounting the two-dimensional identification code 519 on the table, the database registration of connection information can be automated. For example, the identification code of the optical fiber is improved in visibility by attaching the identification tag 541 to the surface of the coating layer of the optical fiber. In this case, the identification tag 541 preferably has a rounded structure so as not to be caught by another optical fiber. The identification code is attached near the optical connector plug 540. The identification tag 541 has a structure capable of moving on the coating of the optical fiber to improve the operability.

Although the respective embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described structures and methods, and achieves the object referred to in the present invention.
Modifications can be made as appropriate within the scope of the effects of the present invention.

[0117]

As described above, according to the optical fiber cord of the present invention, since the outer cover is provided with the identification symbol and the identification color, the target optical fiber cord can be easily discriminated and the connection can be changed. Can be done quickly. Therefore, the workability in the wiring board can be greatly improved,
It is possible to provide services to subscribers promptly and accurately for the future development of optical communication.

According to the collective optical fiber cord of the present invention, the identification color of the optical fiber code is different for each unit, and the identification symbol of the optical fiber code is different at least within the unit. The optical fiber cord can be easily discriminated, and the intended single optical fiber cord can be easily discriminated by the identification symbol, and the connection can be swiftly changed. Therefore, the workability in the wiring board can be greatly improved, and the service to the subscriber can be provided promptly and accurately for the future progress of optical communication.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an optical distribution board according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing details of an alignment member of the optical wiring board according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram showing another example of an alignment member.

FIG. 4 is a configuration diagram showing still another example of an alignment member.

FIG. 5 is an external view showing an example of an optical fiber cord according to a second embodiment of the present invention.

FIG. 6 is a schematic configuration diagram showing a collective type optical fiber cord using the optical fiber cord of FIG.

7 is an explanatory diagram illustrating a connection state of the collective optical fiber cord of FIG. 6 to a wiring board.

FIG. 8 is an external view showing a modified example of the optical fiber cord according to the second embodiment of the present invention.

FIG. 9 is an external view showing another modification of the optical fiber cord according to the second embodiment of the present invention.

FIG. 10 is an external view showing another modification of the optical fiber cord according to the second embodiment of the present invention.

FIG. 11 is an external view showing another modification of the optical fiber cord according to the second embodiment of the present invention.

FIG. 12 is an external view showing another modification of the optical fiber cord according to the second embodiment of the present invention.

FIG. 13 is an external view showing another modification of the optical fiber cord according to the second embodiment of the present invention.

FIG. 14 is an external view showing another modification of the optical fiber cord according to the second embodiment of the present invention.

FIG. 15 is a configuration diagram showing a configuration of on-site equipment including an optical wiring system according to a third embodiment of the present invention.

FIG. 16 is a diagram showing a connection form between the optical wiring system according to the third embodiment of the present invention and other equipment in the equipment center.

FIG. 17 is a plan view showing a third example of the optical wiring system according to the third exemplary embodiment of the present invention.

FIG. 18 is a plan view showing a third example of the optical wiring system according to the third exemplary embodiment of the present invention.

FIG. 19 is an explanatory diagram showing a jumper method using an alignment board of an optical wiring system according to a third embodiment of the present invention.

FIG. 20 is a front view showing a part of a connection board of an optical wiring system according to a third embodiment of the present invention.

FIG. 21 is a configuration diagram showing a ninth example of the optical wiring system according to the third exemplary embodiment of the present invention.

FIG. 22 is a configuration diagram showing a tenth example of the optical wiring system according to the third exemplary embodiment of the present invention.

FIG. 23 is a configuration diagram showing an optical distribution board of Example 10 of the optical wiring system according to the third exemplary embodiment of the present invention.

FIG. 24 is a schematic configuration diagram showing an example of an optical jumper function section having a splitter function of a tenth example of the optical wiring system according to the third exemplary embodiment of the present invention.

FIG. 25 is a schematic configuration diagram showing an optical jumper function section having no splitter function of a tenth example of the optical wiring system according to the third exemplary embodiment of the present invention.

FIG. 26 is a configuration diagram showing an eleventh example of the optical wiring system according to the third exemplary embodiment of the present invention.

FIG. 27 is a configuration diagram showing a twelfth example of the optical wiring system according to the third embodiment of the present invention.

FIG. 28 is a configuration diagram showing a thirteenth example of the optical wiring system according to the third embodiment of the present invention.

FIG. 29 is a configuration diagram showing a facility inside a conventional FTM.

FIG. 30 is a diagram showing an arrangement of on-site facilities in a conventional facility center.

FIG. 31 is a diagram showing a configuration of a conventional FTM including an optical coupler and FS.

FIG. 32 is a configuration diagram showing a connection unit in a conventional FTM.

[Explanation of symbols]

1 FTM 2 Optical coupler 3 Optical fiber selection device 4 Test optical fiber branch 5 Optical multiplexer / demultiplexer 6 Transmitter side optical filter 7 Communication system optical subscriber line terminal equipment 8 Optical fiber subscriber line terminal equipment 9 Optical subscriber line terminal equipment housing 10 Star coupler rack 11 Test equipment rack 12 test equipment 13 Optical fiber selection device control and test device selection device 14 FS master side optical fiber 15 In-house optical fiber cable 16 Second in-house optical fiber cable 17 Subscriber optical fiber cable 18 Subscriber side optical filter 19 Optical fiber subscriber line terminating equipment 20 Optical fiber subscriber line termination equipment 21 Extra length distribution member 22 Extra length processing shelf 23 Optical connector adapter 24 optical connector 25 Single-core tape core connection 101 wiring board body 102 connector connection board 103 Hold board 104 optical fiber cord 106 accommodation 107 Aligning board 108 Optical connector adapter 109 Alignment member mounting frame 110 Alignment member 111,112 Arm part 113,114 Optical fiber cord passage port 113a, 114a openings 120 Alignment member 121,122 Arm part 123,124,125 Optical fiber cord passage port 123a, 124a, 125a openings 130 Alignment member 131 Part 1 132 Other parts 133,134,135 Optical fiber cord passing filter 133a, 134a, 135a openings 201 wiring board 202 connection board 203 Aligning board 204 Hold board 210 optical fiber cord 211 jacket 212 identification symbol 213 color dots 220 optical fiber cord 223 color line 230,240,250,260 Optical fiber cord 252 identification symbol 270,280 Optical fiber cord 271 jacket 300 units 310 Assembled optical fiber cord 320 fiber optic cable 321 jacket 401 Integrated optical wiring system 402 Optical coupler 403 Optical fiber selection device 407 Communication system optical subscriber line terminal equipment 408 Video-based optical subscriber line terminal equipment 409 Optical subscriber line terminal equipment housing 410 Star coupler rack 411 Test device rack 415 Optical fiber cable in the 1st station 417 Subscriber system optical fiber cable 426 Test access function section 427 Cross-connect function section 428 Splitter function section 429 Optical wiring function unit 430 Optical fiber selection function unit 431 Work support mobile terminal 432 Intermediate Optical Wiring Management Function Unit 433 Integrated Optical Wiring Management Department 434 data communication network 435 Facility Operation System 436 Integrated Optical Wiring Module 437 Optical wiring management function unit 439 Device-to-device interface 440 Basic Module 441 expansion module 442 Test Access Unit 443 Aligning board 444 Holding board unit 445 Optical fiber 446 wiring unit 447 connection board 448 Internal optical fiber cable fixing part 449 holding board 450 Third Station Optical Fiber Cable 451 cord stopper 452 display 454 Extra length storage 455 First Optical Coupler 456 Second optical coupler 457 Optical coupler A port 458 Optical coupler B port 459 Optical coupler C port 460 Optical coupler D port 461 Optical pulse tester 462 visible light source 463 Optical monitoring device 464 First connection terminal 465 Second connection terminal 471 Measuring instrument selection function section 472 Optical test function unit 473 monitor function section 474 Optical Fiber Control Function 480 Terminal device side termination function 481 Terminal device side termination function unit 501 Optical distribution board 502 Cross-connect function section 503 Optical fiber alignment function unit 504 Hold section 505 Optical jumper function unit having optical splitter 506 wiring accommodation function unit 507 Terminal device side termination function unit 508 Optical jumper function unit without optical splitter 509 Optical fiber alignment board 510 Terminal device side termination function 511 Optical fiber cable in the 1st station 512 Subscriber optical fiber cable 513 Optical subscriber line terminal equipment device rack 514 Test access function section 517 Optical wiring function unit 519 identification code 520 Optical distribution board A 521 Optical distribution board B 522 reader 524 database system 525 Optical wiring management function unit 535 Monitor function section 536 Optical fiber core contrast function unit 540 optical connector plug 541 identification tag 542 Optical fiber in use 543 optical fiber pending 544 identification space 545 Rotation drawing function 547 Splitter 549 color identification 550 identification symbol 551 connector plug 552 splitter 560 input ports 561 splitter 562 Output port 563 optical filter

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Fumi Izumida             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation (72) Inventor Tsuneji Mine             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation (72) Inventor Keitaka Enomoto             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation (72) Inventor Naoki Nakao             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation (72) Inventor Nobuo Tomita             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation (72) Inventor Akira Hirooka             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation (72) Inventor Hajime Takemoto             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation F-term (reference) 2H050 BC17

Claims (6)

[Claims] 1. An optical fiber cord, wherein an outer cover is provided with an identification mark and an identification color. 2. The optical fiber cord according to claim 1, wherein a plurality of the identification symbols are provided at predetermined intervals along the circumferential direction or the longitudinal direction of the outer cover. 3. The identification symbol is a numeral, a character or a combination thereof, the symbol is oriented vertically or horizontally with respect to the longitudinal direction of the jacket, and the symbols are vertically adjacent to each other at a predetermined interval. 3. The optical fiber cord according to claim 1 or 2, wherein the optical fibers are in mutually opposite directions. 4. The optical fiber cord according to claim 1, wherein a plurality of the identification colors are provided at predetermined intervals along the circumferential direction or the longitudinal direction of the outer cover. 5. The optical fiber cord according to claim 1, wherein a tag is attached to the outer cover, and an identification mark is formed on the tag. 6. An aggregate optical fiber cord configured by assembling a plurality of units in which a plurality of the optical fiber cords according to claim 1 are bundled, wherein the identification color of the optical fiber cord is A collective optical fiber code, which is different for each unit and is different in the identification symbol of the optical fiber code at least in the unit.