JP3908188B2 - Optical wiring system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical wiring system for managing optical wiring information for connecting between an optical fiber outside a facility and a transmission device in the facility and efficiently operating the optical wiring.
[0002]
[Prior art]
In an equipment center installed in an advanced optical communication network, information on optical wiring in the equipment center for connecting an optical fiber outside the center and a transmission device in the center is managed, and An optical wiring system is used to efficiently operate the wiring.
Here, an example of a conventional optical fiber cable termination device (FTM: Fiber Termination Module) used in such a system will be described below.
In general, the FTM is installed at a connection point between a subscriber optical fiber cable and an in-house optical fiber cable in an equipment center station. As a conventional example, there is one described in IEICE Technical Report CS95-50, CS95-16, pp59-66 “Testing on High-Speed / High-Capacity Technology of Optical Line Test System”.
[0003]
FIG. 29 shows the configuration of the on-site equipment including such a conventional FTM, and FIG. 30 shows the arrangement of the on-site equipment in the equipment center. In the figure, 1 is an FTM, 2 is an optical coupler, 3 is an optical fiber selector (FS), 4 is a test branch optical fiber from the optical coupler 2, 5 is an optical multiplexer / demultiplexer, and 6 is a transmission device side. An optical filter, 7 is a communication optical subscriber line terminal device, 8 is a video optical subscriber line terminal device, 9 is an optical subscriber line terminal device housing rack, 10 is a star coupler rack, and 11 is a test equipment rack. (TEM: Test Equipment Module), 12 is a test device, 13 is an optical fiber selection device control and test device selection device (FTES), 14 is an FS master side optical fiber, 15 is a first in-house optical fiber cable, and 16 is a second. An in-house optical fiber cable, 17 is a subscriber optical fiber cable, 18 is a subscriber-side optical filter, 19 is a communication optical subscriber line terminator, and 20 is a video optical subscriber line terminator.
[0004]
A mode of providing communication and video service 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 unit accommodating rack 9, a star coupler rack 10, and a TEM 11 are installed in the equipment center.
1.3 μm band communication light output from the communication optical subscriber line terminal equipment 7 that provides communication, and 1.55 μm band output from the video optical subscriber line terminal equipment 8 that provides video services The communication light is incident on the star coupler rack 10 via the first in-house optical fiber cable 15.
[0005]
In the optical multiplexer / demultiplexer 5 of the star coupler rack 10, the communication lights in the 1.3 μm band and the 1.55 μm band are cross-length multiplexed, and the wavelength multiplexed communication light is further equally distributed to the reciprocal output port. The communication light output from each port of the optical multiplexer / demultiplexer 5 enters 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 passes through the subscriber optical fiber cable 17 to the communication optical subscriber line termination device 19 and the video optical subscriber line termination. The device 20 demultiplexes the wavelength and provides it as a communication and video service.
[0006]
A method for testing an optical fiber from the equipment center when installing and maintaining an optical fiber cable will be described below. The test branching optical fiber 4 from the optical coupler 2 and the FS mass evening optical fiber 14 connected to the test apparatus 12 in the TEM 11 are selectively optically coupled by the FS 3 in the FTM 1. Further, the optical pulse tester in the test apparatus 12 is selected by the FTES 13 in the TEM 11. 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 location search are quickly performed.
[0007]
Here, when performing the test, in order to prevent the test light from entering the communication optical subscriber line termination device 19 and the video optical subscriber line termination device 20, the subscriber who blocks the test light and transmits the communication light. The side optical filter 18 is installed immediately before the communication optical subscriber line termination device 19 and the video optical subscriber line termination device 20. In addition, in order to prevent the test light and the reflected light of the 1.55 μm band communication light output from the video optical subscriber line terminal station device 8 from entering the communication optical subscriber line terminal device 7, the test is performed. A transmission device side optical filter 6 that blocks light and 1.55 μm band communication light and transmits 1.3 μm band communication light is installed at the 1.3 μm band communication light input port of the optical multiplexer / demultiplexer 5. .
[0008]
FIG. 31 is a diagram showing a configuration of a conventional FTM 1 including the optical coupler 2 and the FS 3, and parts corresponding to those in FIG. 29 are given the same reference numerals. In FIG. 31, 21 is a surplus length sorting member, and 22 is a surplus length processing shelf. On the left side of the FTM 1, a plurality of units of optical couplers 2 are accommodated in parallel at each stage, and the test branch optical fibers 4 branched from the optical couplers 2 are connected to the FS 3 disposed at the bottom. In addition, on the right side, a surplus length accommodation space in which a surplus length sorting member 21 and a surplus length processing shelf 22 for mainly accommodating a surplus connection length of the second intra-site optical fiber cable 16 are provided is secured.
[0009]
FIG. 32 is a diagram showing a configuration of a connection portion in a conventional FTM, and parts corresponding to those in FIGS. 29 and 31 are given the same reference numerals. In FIG. 32, 23 is an optical connector adapter, 24 is an optical connector, and 25 is a single-core tape core connection part. A single-core tape core connection portion 25 and an optical connector 24 are attached to the optical coupler 2 in advance.
At the start of service, the subscriber optical fiber cable 17 and the FS master side optical fiber 14 are connected to the optical coupler 2. Next, the optical connector 24 on the second in-house optical fiber cable 16 side is connected to the optical connector adapter 23 connected to the optical coupler 2 to start the service.
[0010]
[Problems to be solved by the invention]
With the development of optical access networks, the number of optical fibers for optical subscribers is increasing, and it is necessary for the facility center to increase the number of cores accommodated per floor area. In addition, the optical fiber cable is congested because the optical subscriber line terminal unit accommodation rack (OLT rack) -star coupler rack-FTM is optically wired in the facility center. .
[0011]
In addition, since the length of the wiring path through which the second in-site optical fiber cable 16 leads from the extra length distributing member 21 to the optical coupler 2 is not uniform, the second in-site optical fiber cable 16 is necessarily connected to the optical coupler 2. The extra length is inevitably generated in the optical fiber portion to be connected, and this extra length processing becomes a problem when the density of the accommodation core in the FTM is increased.
[0012]
In the conventional FTM, the surplus length sorting member 21 and the surplus length processing shelf 22 are designed to accommodate the surplus length of the second in-site optical fiber cable 16 in front of the FTM. When the optical fiber switching connection between the subscriber optical fiber cable and the in-house optical fiber cable is made due to construction work or failure recovery work, the entanglement between the optical fiber to be switched and the other optical fiber is released, and there is no accidental disconnection. It took a long time to work.
[0013]
The present invention has been made in view of the above circumstances, and an object thereof is to provide an effective wiring distribution and connection switching function between an OLT rack, a star coupler rack and an FTM, and a subscriber optical fiber cable. Another object of the present invention is to provide an optical wiring system capable of realizing high-density mounting of in-house optical fiber cables and improving the efficiency of switching connection work.
[0014]
[Means for Solving the Problems]
  In order to solve the above problems, the present invention provides the following optical wiring system.
  That is, an optical wiring system according to claim 1 of the present invention includes a terminal device side termination function unit that terminates a plurality of first optical fiber cables connected to an optical subscriber line terminal device, and a plurality of optical terminals. A terminal device-side termination function unit that terminates a second optical fiber cable connected to the subscriber terminal device;An optical wiring functional unit that distributes the first optical fiber cable from the terminal device side termination functional unit to a plurality of optical fibers; an arbitrary optical fiber of the first optical fiber cable from the optical wiring functional unit; A cross-connect function unit for switching an optional optical fiber of the second optical fiber cable;Test access function unit for inputting / outputting test light to / from the optical fiber of the first optical fiber cable and the optical fiber of the second optical fiber cable, and light for selecting an input / output port of the test light of the test access function unit And an optical wiring module having a fiber selection function unit.
  An optical wiring system according to claim 2 is a terminal unit side termination function unit that terminates a plurality of first optical fiber cables connected to an optical subscriber line terminal unit, a plurality of optical subscriber terminal units, A terminal device-side termination function unit that terminates the second optical fiber cable to be connected; and an optical wiring function unit that distributes the optical fiber of the first optical fiber cable from the terminal device-side termination function unit; A cross-connect function unit for switching an arbitrary optical fiber of the first optical fiber cable from the optical wiring function unit and an arbitrary optical fiber of the second optical fiber cable; and the first optical fiber. Test access function unit for inputting / outputting test light to / from optical fiber of cable and second optical fiber cable, and optical fiber selection function unit for selecting input / output port of test light of test access function unit Is characterized in that an optical wiring module including.
[0015]
  Claim 3The optical wiring system ofClaim 1 or 2In this optical wiring system, a splitter function unit that distributes communication light from the optical subscriber line terminal equipment to a plurality of output ports and outputs the same to the cross-connect function unit is provided.
[0016]
  Claim 4The optical wiring system ofClaim 1, 2 or 3In this optical wiring system, the optical wiring module is provided with an optical wiring management function unit that manages optical wiring information, component information, and line information in the optical wiring module.
  In this optical wiring system, it is easy to refer to the facility information and prevent malfunction of the insertion / extraction optical fiber during the switching operation.
[0017]
  Claim 5The optical wiring system ofClaim 1, 2, 3 or 4In the optical wiring system, an optical test function unit that optically tests an optical fiber of an optical fiber cable connected to the optical fiber selection function unit, and a monitor function unit that monitors communication light and test light. And an optical fiber contrast function section for comparing optical fibers, and a measuring instrument selection function section for selecting one of the optical test function section, the monitor function section, and the optical fiber contrast function section. It is characterized by that.
[0018]
In this optical wiring system, based on equipment information, optical fiber test, communication light and test light monitor, optical fiber core contrast, optical test function unit and monitor function unit and optical fiber control function unit tester, By selecting, it is possible to provide an efficient optical wiring management and a highly reliable optical fiber network.
[0019]
  Claim 6The optical wiring system ofClaim 3In the optical wiring system, the optical wiring module includes the terminal device side termination function unit, the terminal device side termination function unit, the optical wiring function unit, the splitter function unit, and the cross-connect function. Unit, optical test module functional unit comprising the test access function unit, the optical fiber selection function unit, the terminal device side termination function unit, the optical wiring function unit, the splitter function unit, An optical wiring module extension unit including the cross-connect function unit, the test access function unit, and the optical fiber selection function unit, the optical wiring module extension unit being an optical wiring function unit of the optical wiring module basic unit It is characterized by having been added to.
  In this optical wiring system, it becomes easy to increase the number of housing cores.
[0020]
  Claim 7The optical wiring system ofClaim 4In the optical wiring system, the optical wiring management function unit includes an optical wiring information management function unit of the optical wiring module, a work support portable terminal, and information for providing the work support portable terminal with the optical wiring information and the work support information. An intermediate optical wiring management function unit having an exchange function unit, and an integrated optical wiring management unit that integrates and manages optical wiring information from a plurality of intermediate optical wiring management function units and manages connections to other operation systems. It is characterized by having a part.
[0021]
In this optical wiring system, the optical wiring information management function unit enables management of optical wiring information, component information, and line information for each optical wiring module, and the work support portable terminal provides information to the connection switching operator. Allows provision and collection of connection information, and integrated optical wiring information from a plurality of intermediate optical wiring management function units can be integrated and managed by the integrated optical wiring management unit to connect to other operation systems Become.
[0022]
  Claim 8The optical wiring system ofClaims 1, 2, 3, 4, 5 or 7In the optical wiring system, the cross-connect function unit includes: a holding plate in which one end of the optical fibers of the plurality of first optical fiber cables is connected and fixed to one side; and the second optical fiber cable of the reciprocal number. One end of the optical fiber is fixedly connected to one side, connected to the optical fiber, and a connection board in which a plurality of optical connectors that are arbitrarily connected to the moving side optical connector on the opposite side are regularly arranged, and the optical fiber is slid An alignment plate having a plurality of holding holes that are loosely movable and one end of which is connected to the optical fiber at a surface facing the surface to which the optical fiber of the first optical fiber cable of the holding plate is connected and fixed. An insertion / removal optical fiber having a movable optical connector attached to the other end of the alignment panel and selectively connected to the optical connector of the connection panel is provided at the other end. It is characterized by comprising an optical fiber accommodating portion for accommodating a driver.
[0023]
In this optical wiring system, by adopting a connection method using a holding panel, a connection panel, an alignment panel, and an insertion / extraction optical fiber, the extra length portion of the insertion / extraction optical fiber is distributed and stored in the space before and after the alignment panel. Therefore, the workability when performing the switching work is improved.
[0024]
  Claim 9The optical wiring system ofClaim 8In this optical wiring system, the optical fiber system includes the insertion / extraction optical fiber provided with an identification symbol, and a work support portable terminal provided with an identification symbol reading function unit.
  In this optical wiring system, by using the identification symbol, it becomes easy to identify the insertion / extraction optical fiber, and an erroneous operation during the switching operation is prevented.
[0025]
  Claim 10The optical wiring system ofClaim 8 or 9In this optical wiring system, the connection board and the holding board include a display unit for displaying instruction data from the intermediate optical wiring management function unit.
  In this optical wiring system, by displaying the instruction data, an erroneous operation when performing the switching work is prevented.
[0026]
  Claim 11The optical wiring system ofClaim 8, 9 or 10In this optical wiring system, a visible light source connected to the optical fiber selection function unit and a bending imparting unit for leaking visible light to the insertion / extraction optical fiber are provided.
  In this optical wiring system, by providing a bent portion in the insertion / extraction optical fiber, it becomes possible to identify the optical fiber using visible light, and prevent an erroneous operation when performing a switching operation.
[0027]
  Claim 12In the optical wiring system, a terminal unit side termination function unit that terminates a plurality of first optical fiber cables connected to an optical subscriber line terminal unit and a second unit that connects to a plurality of optical subscriber terminal units. A terminal device side termination function section for terminating the optical fiber cable ofA cross-connect for switching connection of an optical fiber of the first optical fiber cable from the terminal unit side termination functional unit and an arbitrary optical fiber of the second optical fiber cable from the terminal unit side termination functional unit A functional part;An optical fiber alignment function unit that accommodates the first optical fiber cable and separates and aligns the optical fiber to be wired to the cross-connect function unit and the optical fiber to be retained, and any optical fiber from the optical fiber alignment function unit Is provided with an optical wiring accommodating function part connected to an arbitrary terminal of the cross-connect function part.
  In this optical wiring system, the optical fiber cable is neatly wired in a form that is easy to manage, and the congestion of the wiring path is avoided.
[0028]
  Claim 13The optical wiring system ofClaim 12This optical wiring system is characterized by comprising a holding function section for holding unused optical fibers and an optical fiber alignment board for accommodating the plurality of optical fiber alignment function sections.
[0029]
  Claim 14The optical wiring system ofClaim 12 or 13An optical jumper for distributing communication light from the optical subscriber line terminal device to one or a plurality of output ports between the optical fiber alignment function unit and the first optical fiber cable. It is characterized by having a functional part.
[0030]
  Claim 15The optical wiring system ofClaim 14In this optical wiring system, the optical jumper function section is provided with an optical filter for selectively removing light according to wavelength.
[0031]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0032]
[First Embodiment]
FIG. 1 is a configuration diagram showing an optical wiring board according to a first embodiment of the present invention. In FIG. 1, 101 is a wiring board body, 102 is a connector connection board installed at a predetermined position of the wiring board body 101, 103 is a holding board installed at another predetermined position of the wiring board main body 101, 104 is an optical fiber cord having an optical connector plug 105 attached to the end thereof, and 106 is an optical fiber cord 104 (or an optical fiber cable) attached to the wiring board main body 101. ) 107 is an aligning board installed between the connector connecting board 102 and the holding board 103 of the wiring board main body 101.
[0033]
The connector connection board 102 has a large number of optical connector adapters 108 for connecting the optical connector plugs 105 to each other. The holding board 103 includes a plurality of locking portions (not shown) for locking the optical connector plug 105, and holds the unconnected optical fiber cord 104 among the optical fiber cords 104 drawn from the housing portion 106. .
The alignment board 107 is configured by arranging a plurality of alignment members 110 in the vertical direction via an alignment member mounting frame 109.
[0034]
FIG. 2 shows details of the alignment member 110. The alignment member 110 has a substantially U-shape as a whole, and at least one optical fiber cord is accommodated in a substantially horizontal direction in each of the two arm portions 111 and 112 facing each other. The optical fiber cord passage ports 113 and 114 that can be held are provided. In addition, slit-shaped (or openable) 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 passages 113 and 114 are arranged in the vertical direction on the alignment board 107.
[0035]
In the above configuration, all the optical fiber cords 104 drawn into the wiring board main body 101 from the housing portion 106 are passed through any one of the optical fiber cord passage openings 113 (inlet side) of the alignment board 107, and the optical fiber cords. Of 104, the one to be connected (in use) is passed through the optical fiber cord passage port 114 (exit side), then drawn to the connector connection board 102 side, connected to the optical connector adapter 108, and held. The thing is not passed through the passage opening 114 but is drawn to the side of the holding board 103 (locked to the locking portion) and held.
[0036]
When connecting the optical fiber cord 104 on hold, the optical connector plug 105 is removed from the locking portion of the reservation board 103, and the optical fiber cord 104 is moved near the alignment board 107 to release the entanglement. The connector plug 105 is connected to an arbitrary optical connector adapter 108 of the connector connection board 102, and is inserted into the optical fiber cord passage port 114 from the opening 114a.
Similarly, the optical fiber cord 104 connected to the connector connection board 102 can be replaced with another optical connector adapter 108 or the holding board 103.
[0037]
Here, by accommodating the optical fiber cord 104 of 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. Also, by using the alignment board 107 in which a large number of alignment members 110 are arranged, the optical transmission characteristics in the optical distribution board can be kept stable, so that the density of the optical distribution board can be increased compared to the conventional case. It becomes possible.
[0038]
FIG. 3 shows another example of the alignment member. Here, an example in which two optical fiber cord passage openings are provided in one arm portion is shown. That is, in the figure, 120 is an alignment member, and has an approximately U-shape as a whole. One arm portion 121 is provided with an optical fiber cord passage port 123 similar to the above, and the other arm portion 122. Are provided with optical fiber cord passage openings 124 and 125 similar to those described above. Also, above the passage openings 123, 124, 125, the same openings 123a, 124a, 125a are formed.
[0039]
In the above-described configuration, all the optical fiber cords 104 drawn into the wiring board main body 101 from the housing portion 106 are passed through the optical fiber cord passage port 123 (inlet side) and further connected among the optical fiber cords 104. Things (in use) are passed through the optical fiber cord passage port 124 (exit side), and then routed and connected to the connector connection board 102 side. Is passed to the holding board 103 side and held.
[0040]
When connecting the optical fiber cord 104 on hold, the optical connector plug 105 is removed from the locking portion of the storage board 103, and the optical fiber plug 105 is placed until the optical connector plug 105 comes to the position of the passage port 125 of the alignment member 120. The cord 104 is moved near the alignment board 107 to release the entanglement, and then is pulled out from the optical fiber cord passage opening 125 through the opening 125a, and the optical connector plug 105 is connected to any optical connector adapter 108 on the connector connection board 102. Then, the optical fiber cord passage opening 124 is inserted through the opening 124a.
Similarly, the optical fiber cord 104 connected to the connector connection board 102 can be replaced with another optical connector adapter 108 or the holding board 103.
[0041]
FIG. 4 shows still another example of the alignment member. Here, the entire alignment member has a substantially mouth shape, and further shows an example in which the optical fiber cord is passed through the optical wiring board main body in the front-rear direction. That is, in the figure, 130 is an alignment member, and has an overall substantially mouth shape. One portion 131 is provided with the same optical fiber cord passing rod 133 as described above, and the other portion is opposed to the one portion. The portion 132 is provided with optical fiber cord passage openings 134 and 135 similar to those described above. In addition, openings 133a, 134a, and 135a similar to the above are formed in the passage openings 133, 134, and 135, respectively.
Here, the optical fiber cord passage openings 134 and 135 correspond to the optical fiber cord passage openings 124 and 125 in FIG. 3, and the operations and effects thereof are the same as those in FIG.
[0042]
In addition, as an optical fiber cord accommodated in an alignment member, the optical fiber cord connected with optical components other than the optical fiber cord in an optical fiber cable is also contained. 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 alignment member.
[0043]
In this way, by using the alignment member when connecting or changing the connection, the entanglement of the optical fiber cord can be released, and the optical fiber cord in use and on hold can be separated. Therefore, even when connection and connection change are repeated, entanglement of the optical fiber cord can be avoided.
[0044]
[Second Embodiment]
An optical fiber cord according to a second embodiment of the present invention and a collective 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 the 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 for explaining a connection state of the collective optical fiber cord of FIG. 6 to a wiring board.
[0045]
As shown in FIG. 5, an identification symbol 212 is provided at a predetermined interval along the longitudinal direction of the optical fiber cord 210 (preferably an interval of 20 to 50 mm) on the outer cover 211 of the optical fiber cord 210 having a core wire inside. It is attached in multiple numbers. The identification symbol 212 is composed of a two-digit number, and is vertically oriented 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. A plurality of color dots 213 that are identification colors are attached to the outer cover 211 of the optical fiber cord 210 at predetermined intervals (preferably at intervals of 20 to 50 mm) in the longitudinal direction of the optical fiber cord 210.
[0046]
Using such an optical fiber cord 210, as shown in FIG. 6, a plurality of units are bound to form a unit 300, and a plurality of units 300 are combined to form a collective optical fiber cord 310 (see FIG. 6). 6 (a)), or an optical fiber cable 320 which is a collective optical fiber cord 310 provided with a jacket 321 (see FIG. 6 (b)).
[0047]
As described above, if the color dot 213 of the optical fiber cord 210 is made different for each unit 300 and the identification symbol 212 of the optical fiber cord 210 is made different in the unit 300, the jacket of the optical fiber cable 320 is made. Even in the state in which the binding of the unit 321 and each unit 300 is released, the optical fiber cord 210 of the target unit 300 can be easily identified by the color dot 213, and the target symbol The optical fiber cord 210 can be easily selected.
[0048]
Therefore, as shown in FIG. 7, one end side of each optical fiber cord 210 of the collective optical fiber cord 310 is individually wired to the connection board 202 of the distribution board 201, and the collective optical fiber cord is arranged on the alignment board 203. The other end side of each optical fiber cord 210 of the optical fiber cable 320 is accommodated, and one end side of each optical fiber cord 210 of the optical fiber cable 320 is accommodated. Is wired to an external system, the other end side of the remaining optical fiber cord 210 of the optical fiber cable 320 is wired to the holding board 204, and the optical fiber cord 210 of the optical fiber cable 320 accommodated at one end side by the alignment board 203. Even when the other end of the connection is changed, the target is indicated by the color dot 213 and the identification symbol 212 as described above. An optical fiber cord 210 of one mind can Furudo be easily selected, it is possible to quickly perform the connection re.
[0049]
Therefore, the workability in the wiring board 201 can be greatly improved, so that services for subscribers can be provided promptly and accurately for future progress of optical communication.
[0050]
In addition, as shown in FIG. 5, since a plurality of identification symbols 212 and color dots 213 are attached to the outer casing 211 of the optical fiber cord 210 at predetermined intervals along the longitudinal direction, they are identified regardless of the position in the longitudinal direction. Can be easily done.
[0051]
Also, as shown in FIG. 5, the identification symbol 212 is vertically oriented 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. Visual recognition can be easily performed from either side in the circumferential direction of 210.
[0052]
In this embodiment, the optical fiber cord 210 in which a plurality of color dots 213 are attached to the outer casing 211 at predetermined intervals along the longitudinal direction is used. For example, as shown in FIG. It is also possible to use an optical fiber cord 220 provided with a color line 223 as an identification color continuously in the longitudinal direction.
[0053]
Further, as shown in FIG. 9, an optical fiber cord 230 in which a plurality of identification symbols 212 and color dots 213 are attached to the outer casing 211 at a predetermined interval in the circumferential direction (preferably at two equal intervals in the circumferential direction) As shown in FIG. 10, if an optical fiber cord 240 having a plurality of identification symbols 212 and color lines 223 attached to the outer casing 211 at a predetermined interval in the circumferential direction (preferably two locations at equal intervals in the circumferential direction) is used. Even if the optical fiber cords 230 and 240 are twisted, visual confirmation can be easily performed.
[0054]
Further, in the present embodiment, an optical fiber cord 210 is used in which an outer cover 211 is provided with an identification symbol 212 that is vertically oriented with respect to the longitudinal direction and that is vertically opposite to each other at predetermined intervals. Thus, the optical fiber cord 210 can be easily visually confirmed from either side in the circumferential direction. For example, as shown in FIGS. By using the optical fiber cords 250 and 260 in which the identification symbol 252 in which the adjacent vertical directions are opposite to each other is attached to the outer cover 211, it is easy to visually check from either side of the optical fiber cord 210 in the longitudinal direction. It is also possible to make it possible.
[0055]
In the present embodiment and the other examples described above, the optical fiber cords 210 and 220 in which the color dots 213 and the color lines 223 are attached to the outer jacket 211 along the longitudinal direction have been described. For example, FIG. As shown in FIG. 14, it is also possible to use optical fiber cords 270 and 280 using an outer cover 271 made of a color resin and having the appearance color of the outer cover 271 as an identification color.
[0056]
Further, in the present embodiment, the optical fiber cord 210 in which the identification symbol 212 made up of two digits is attached to the outer jacket 211 is used. However, for example, an identification symbol made up of letters or a combination of letters and numbers is applied to the outer jacket 211. It is also possible to use an optical fiber cord attached to.
Further, it is sufficient that the identification symbol 212 is different at least in the unit 300, but may be different in the optical fiber cords of all units.
[0057]
[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 illustrating a configuration of the in-house facility including the integrated optical wiring system, and FIG. 16 is a diagram illustrating a connection form between the integrated optical wiring system and other facilities in the facility center.
[0058]
In the figure, 401 is an integrated optical wiring system, 402 is an optical coupler, 403 is an optical fiber selection device (FS), 407 is a communication optical subscriber line terminal device, 408 is a video optical subscriber line terminal device, 409 is an optical subscriber line terminal unit housing rack, 410 is a star coupler rack, 411 is a test equipment rack (TEM), 415 is a first-site optical fiber cable, 417 is a subscriber optical fiber cable, and 426 is a test access function 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, 431 is a work support portable terminal, 432 is an intermediate optical wiring management function unit, and 433 is a total light. The wiring management unit 434 is a data communication network.
[0059]
435 is another equipment operation system, 436 is an integrated optical wiring module (IDM), 437 is an optical wiring management for managing optical wiring information, component information and line information in the integrated optical wiring module. Function unit 439 is an inter-device interface, 471 is a measuring instrument selection function unit that selects an optical test function unit, a monitor function unit, and an optical fiber contrast function unit, and 472 is an optical test function that optically tests the optical fiber of the optical fiber cable. 473 is a monitoring function unit for monitoring communication light and test light, 474 is an optical fiber comparison function unit for comparing optical fibers, 480 is a terminal device side termination function unit, and 481 is a terminal device side termination function. Part.
[0060]
The first in-house optical fiber cable 415 from the optical subscriber line terminal unit accommodating rack 409 is connected to the first connection end of the integrated optical wiring system 401 and is connected to the second connection end of the integrated optical wiring system 401. A subscriber optical fiber cable 417 is connected. The integrated optical wiring system 401 is connected to the TEM 411 via the inter-device interface 439.
[0061]
The optical wiring function unit 429 distributes the first in-site optical fiber cable 415 to a plurality of cross-connect function units 427 and splitter function units 428 provided in the IDM 436. The split function unit 428 distributes communication light from the optical subscriber line terminal units 407 and 408 to a plurality of output ports. The cross-connect function unit 427 switches connection between 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. The test access function unit 426 inputs and outputs 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.
[0062]
With such an integrated optical wiring system 401, in addition to integrating a plurality of functions of conventional equipment, it is possible to simplify the wiring route in the equipment center by newly providing an optical wiring function unit 429. Economic integration of the device can be achieved by functional integration.
[0063]
That is, as described above with reference to FIG. 29, in the conventional equipment configuration, there are a plurality of paths in the in-house optical wiring between the OLT rack 9 and the star coupler rack 10 -FTM 1. A large amount of the two-site optical fiber cable 416 was required, which caused serious congestion. In contrast, in the embodiment of the present invention described with reference to FIGS. 15 and 16, all the first in-house optical fiber cables 415 from the OLT rack 409 are collectively wired to the optical wiring function unit 429 in the IDM 436. Simple optical wiring using the first optical fiber cable 415 in the center is possible. In addition, the in-house optical wiring between the conventional star coupler rack 10 and the FTM 1 is absorbed in the IDM 436 in the embodiment of the present invention and placed under the management of the integrated optical wiring system 401.
[0064]
[Second Embodiment]
In this embodiment, the optical test function unit 430 selects the optical test function unit 472, the monitor function unit 473, the optical fiber contrast function unit 474, and the optical test function unit, the monitor function unit, and the optical fiber contrast function unit. An optical test module 411 configured with a measuring instrument selection function unit 471 is connected. The 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 communication light and test light, and the optical fiber contrast function unit 474 controls the optical fiber. Has the function of According to this embodiment, it is possible to execute a test for newly installing the subscriber optical fiber cable 417 and a test for maintenance.
[0065]
[Third embodiment]
17 and 18 are diagrams for explaining a third example of the present embodiment. In the figure, 440 is a basic module of IDM 436, 441 is an extension module of IDM 436, 442 is a test access unit, 443 is an alignment board, 444 is a holding board unit, 445 is an insertion / extraction optical fiber, 446 is a wiring unit, 447 is a connection board, Reference numeral 448 denotes an in-house optical fiber cable fixing portion, 449 denotes a holding plate, and 450 denotes a third in-house optical fiber cable.
[0066]
The basic module 440 of the IDM 436 in this embodiment includes 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. 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 are provided.
[0067]
The test access unit 442 includes a test access function unit 426 and an optical fiber selection function unit 430, the insertion / extraction optical fiber 445 and the connection board 447 constitute a cross-connect function unit 427, and the wiring unit 446 includes a plurality of wiring units 446 from one IDM basic module 440. A wiring function for performing wiring to the additional module 441. By using the extension module 441 to cope with an increase in the number of accommodated core wires, the management function of the optical wiring in the communication facility center can be maintained regardless of the increase in the accommodated core wires.
[0068]
The connection change of the optical wiring is usually performed by the cross-connect function unit 427 in the IDM 436. Here, the connection change of the optical fiber 445 connected to the connection board 447 is performed. In the conventional FTM, since the number of accommodated core wires is finite, there is a possibility that a connection change case that cannot be solved within a single FTM may occur. Since the integrated optical wiring system 401 collectively manages these optical wirings, such a problem does not occur.
[0069]
Further, according to this embodiment, since the optical wiring function unit 429 can perform connection switching outside the range of the cross-connect function unit 427, the communication optical subscriber line terminal unit 407 and the subscriber optical fiber Optical wiring between the cable 417 and between the video optical subscriber line terminal equipment 408 and the subscriber optical fiber cable 417 can be selected and connected completely and arbitrarily. In addition, according to the present embodiment, since the conventional star coupler rack 10 and the FTM 1 are integrated, the space occupied by the apparatus can be reduced, and the density of the accommodation core in the equipment center can be increased.
[0070]
Next, 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 with reference to FIG. The conventional FTM 1 is connected to the optical multiplexer / demultiplexer in the star coupler rack 410 via the second in-site optical fiber cable 416, and the star coupler rack 410 is wired in the IDM basic module 440 via the third in-site optical fiber cable 450. Connect to unit 446.
[0071]
According to the present embodiment, the integrated optical wiring system 401 of the present embodiment can collectively manage the in-house optical cable wiring to which the conventional in-house equipment is connected by accommodating the conventional in-house equipment together. Therefore, it is possible to simplify the wiring path in the equipment center and avoid congestion of the wiring in the equipment center.
[0072]
[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. The intermediate optical wiring management function unit 432 has a database for managing optical wiring information, component information, and line information in the IDM 436, and has a function of instructing connection switching work.
[0073]
The work support portable terminal 431 has an information exchange function for referring to the database of the intermediate optical wiring management function unit 432 and inputs work contents such as connection change, and supports the worker's 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 connections with other operation systems 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 switching workers.
[0074]
[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, 449 is a holding board. , 451 are cord stoppers, and 454 is a surplus length storage portion.
[0075]
A method for changing the connection of the insertion / extraction optical fiber 445 using the alignment board 443 will be described below.
Since the insertion / extraction optical fiber 445 is slidably held slidably on the alignment board 443, the extra length portions of the insertion / extraction optical fibers 445 are distributed and accommodated in the extra length optical fiber accommodation portions 454 on the front and rear sides of the apparatus. Further, when the connection is changed, even if there are many extra lengths of the insertion / extraction optical fiber 445 in the extra length storage portion 454 on the front surface of the apparatus, the optical connector 424 is pulled up to just before the board surface of the alignment board 443. Operability and visibility can be ensured.
[0076]
The connection change of the insertion / extraction optical fiber 445 is performed by changing the optical connector 424 of the insertion / extraction optical fiber 445 fixed to the first optical connector adapter 423 provided on the connection board 447 to the second optical connector adapter 423 provided on the connection board 447. By replacing it with
[0077]
FIG. 19A is a diagram showing a connection state, in which the optical connector 424 of the insertion / extraction optical fiber 445 is fixed to the first optical connector adapter 423. In FIG. 19B, the optical connector 424 is pulled out from the first optical connector adapter 423. In FIG. 19C, the insertion / removal optical fiber 445 from which the optical connector 424 has been pulled out is pulled up from the rear surface of the alignment board 443, 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, a specific optical connector 424 can be selected from the front insertion / extraction optical fiber extra-length accommodating portion 454 in which the extra length portions of many insertion / extraction optical fibers 445 are accommodated.
[0078]
In FIG. 19D, the optical connector 424 is selected, and the insertion / extraction optical fiber 445 is pulled out to the front surface of the alignment board 443 by a required length. At this time, the optical fiber 445 is inserted outside the other optical fiber, and the optical connector 424 of the optical fiber 445 is connected to the second optical connector adapter 423 provided on the connection board 447. In FIG. 19 (e), the extra length portion of the insertion / extraction optical fiber 445 is accommodated in the extra length accommodation portions 454 on the front and back surfaces in a balanced manner so as to ensure operability and visibility.
[0079]
According to the present embodiment, since the insertion / removal optical fiber and the optical connector to be switched can be easily selected even if the extra length portion of the insertion / removal optical fiber exists, the operation time for switching the connection can be shortened.
[0080]
[Sixth embodiment]
In this embodiment, an insertion / removal optical fiber identification symbol using a bar code is assigned to a position indicated by 453 in FIG. 19A of the insertion / removal optical fiber 445, and this is read by the work support portable terminal 431. According to this embodiment, the search time for the insertion / extraction optical fiber 445 is shortened, the working efficiency is improved, and the selection error of the insertion / extraction optical fiber 445 can be prevented.
[0081]
[Seventh embodiment]
In this embodiment, the connection panel 447 and the holding panel unit 444 are provided with a display unit for displaying instruction data from the intermediate optical wiring management function unit 432. FIG. 20 is a diagram showing a part of the connection board 447, and a display unit 452 made of LEDs is provided adjacent to the optical connector adapters 423 arranged. The display unit 452 provided on the connection board 447 indicates a connection terminal on the connection board 447 to be inserted / extracted by the operator, and the display unit 452 provided on the holding board unit 444 is to be inserted / extracted by the operator. The insertion / extraction optical fiber 445 is indicated.
[0082]
According to this embodiment, the search for each connection portion on the insertion / extraction optical fiber connection board becomes more reliable and quick, and it is possible to improve work efficiency when performing connection switching work and to prevent misidentification when performing optical code selection. Become.
[0083]
[Eighth embodiment]
In this embodiment, a visible light source is connected to the optical fiber selection function unit 430, and a bending imparting unit for leaking visible light to the insertion / extraction optical fiber 445 is provided. 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 enters the front insertion / extraction optical fiber extra length storage part and the rear insertion / extraction optical fiber extra length accommodation part. It leaks to the outside at the bent portion of the inserted optical fiber 445 accommodated. The insertion / extraction optical fiber 445 can be identified by visually observing the leakage light.
[0084]
Thereby, when selecting the insertion / removal optical fiber 445, the insertion / removal optical fiber 445 can be selected reliably and quickly from the rear surface of the alignment board 443, and workability can be improved when performing the connection switching work, and an erroneous operation can be performed. Can be prevented.
Further, a semiconductor laser, a He—Ne laser, or the like can be used as a visible light source.
[0085]
[Ninth embodiment]
In this embodiment, a connection switching method without erroneous operation is applied to the cross-connect function unit 427. FIG. 21 is a diagram for explaining this embodiment, in which 403 is an optical fiber selection device (FS), 417 is a subscriber system optical fiber cable, 444 is a holding plate 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, 457 is an optical coupler A port, 458 is an optical coupler B port, 458 is an optical coupler C port, 460 is an optical coupler D port, and 461 is An optical pulse tester, 462 is a visible light source, 463 is an optical monitor device, 464 is a first connection terminal, and 465 is a second connection terminal.
[0086]
The signal light emitted from the insertion / extraction optical fiber 445 sequentially passes through 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. Pass through and reach the subscriber optical fiber cable 417.
[0087]
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 the light inserted from the optical coupler B port 458 is The light branched from the optical coupler A port 457 and the optical coupler D port 460 and 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 inserted from the optical coupler D port 460. The 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.
[0088]
Next, in the initial state, the insertion / extraction optical fiber 445 is connected to the first connection terminal 464, and the connection is changed from this state to the state where the insertion / extraction optical fiber 445 is connected to the second connection terminal 465. explain.
[0089]
First, the operator of the in-house facility inputs a network configuration change item including subscriber information, service information, and the like to the work support portable terminal 431, the intermediate optical wiring management function unit 432, or the integrated optical wiring management unit 433. Next, all connection change requests input to other than the intermediate optical line management function unit 432 are transferred to the intermediate optical line management function unit 432. The intermediate optical wiring management function unit 432 refers to its own database to determine the insertion / extraction optical fiber 445, the first connection terminal 464, and the second connection terminal 465 for performing the connection change operation. The determined numbers of the insertion / extraction optical fibers 445 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 switching operator performs the work in accordance with this instruction.
[0090]
Next, the intermediate optical wiring management function unit 432 issues a command to connect the optical coupler D port 460 on the first optical coupler 455 and the optical monitor device 463 to the FS 403, and the FS 403 operates in response to this. Is executed, the optical monitor device 463 monitors the signal from the insertion / extraction optical fiber 445 before the connection change.
[0091]
Next, the connection switching operator selects the first connection terminal 464 designated by the work support portable terminal 431, and confirms the insertion / extraction optical fiber 445 fixed thereto. At this time, a reliable confirmation operation can be performed by reading the identification symbol given to the insertion / extraction optical fiber 445 with a 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 an instruction to release the insertion / removal optical fiber 445, and the operator confirms this to release the insertion / removal optical fiber 445.
[0092]
When the insertion / removal optical fiber 445 is released, the signal from the insertion / removal optical fiber 445 monitored by the optical monitor device 463 is cut off. The optical monitoring device 463 reports this signal stop information to the intermediate optical wiring management function unit 432. Upon receiving this signal stop information, the intermediate optical wiring management function unit 432 issues a command to connect the optical coupler D port 460 on the second optical coupler 456 and the visible light source 462 to the FS 403, and in response to this, 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 light emission from the connection panel 447 and reports the confirmation 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.
[0093]
Next, the intermediate optical wiring management function unit 432 issues a command to connect the optical coupler D port 460 on the second optical coupler 456 and the optical monitoring device 463 to the FS 403, and the FS 403 operates in response to this. Is executed, the optical monitor device 463 waits for signal insertion from the second connection terminal 465. Further, the intermediate optical wiring management function unit 432 instructs the worker to connect to the second connection terminal 465 of the connection panel 447 via the work support portable terminal 431. The worker connects the insertion / extraction optical fiber 445 to the second connection terminal 465 in accordance with an instruction from the work support portable terminal 431.
[0094]
When the insertion / removal optical fiber 445 is normally connected to the second connection terminal 465, the optical monitor device 463 receives a signal from the insertion / removal optical fiber 445 and reports that the connection is completed to the intermediate optical wiring management function unit 432. To do. Upon receiving the report of the end of connection, the middle light wiring management function unit 432 notifies the worker of the completion of work via the work support portable terminal 431, instructs the FS 403 to move to the initial position, and further has its own database. Change the contents of. According to this embodiment, reliable and quick work can be performed.
[0095]
[Tenth embodiment]
22 is a block diagram showing an optical wiring system of the tenth example of the present embodiment, FIG. 23 is a block diagram showing an optical wiring board of the optical wiring system, in which 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, 506 is a wiring accommodating function unit, 507 is a terminal device side termination function unit, and 508 is an optical splitter. Optical jumper function unit 509 does not have, 509 is an optical fiber alignment board for accommodating a plurality of optical fiber alignment function units 503, 510 is a terminal unit side termination function unit, 511 is a first in-house optical fiber cable, 512 is a subscription An optical fiber cable 513 for an optical subscriber line terminal device accommodating an optical subscriber line terminal device such as a communication optical subscriber line terminal device or a video optical subscriber line terminal device; 55 Connector plug, 552 is a splitter.
[0096]
However, FIG. 23 shows an example in which an optical jumper function unit 505 having an optical splitter is used, but an optical jumper function unit 508 having no optical splitter may be used instead of the optical jumper function unit 505.
The terminal device side termination function unit 510 accommodates the first in-house optical fiber cable 511 connected to the plurality of optical subscriber line terminal devices and connects it to the optical jumper function unit 508. The optical jumper function unit 508 is roughly classified into one having a splitter function (FIG. 24) and one not having a splitter function (FIG. 25).
[0097]
24 is a schematic diagram showing the optical jumper function unit 505, FIG. 25 is a schematic diagram showing the optical jumper function unit 508, 560 is an input port, 561 is a splitter, 562 is an output side port, and 563 is an optical filter. The splitter 561 has a function of distributing communication light from the optical subscriber line terminal equipment to a plurality of ports, and the number of distribution is not particularly limited, but it is 4, 8, in relation to the optical subscriber line terminal equipment. 16 etc. are useful.
[0098]
Further, communication lights having different wavelengths for the communication system and the video system can be arbitrarily combined according to 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 equipment 513 is provided to a specific subscriber without being distributed, and a plurality of input ports and corresponding outputs are used. Has a port. Both the optical jumper function unit 505 having the splitter function and the optical jumper function unit 508 having no splitter function can be accommodated at an arbitrary position of the optical fiber aligning panel 509 by making the mounting shapes the same.
[0099]
The optical fiber alignment function unit 503 has the following functions.
(1) An 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 on hold are separated.
(2) It has an output opening portion on the use side and the holding side.
(3) The bending diameter is ensured so as not to deteriorate the characteristics of the accommodated optical fiber.
(4) The used optical fiber and the pending optical fiber 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 rotation mechanism.
(7) There is a space where the identification information displayed on the optical fiber coating can be visually identified.
[0100]
By completely separating the optical fiber in use connected to the cocos connect function unit 502 from the optical fiber held in the holding unit 504, the optical fiber on hold has an adverse effect on the characteristics of the optical fiber in use. Don't give. In addition, since there is a space for the drawing function and the visual identification, even if another optical fiber alignment function unit 503 is stacked and accommodated, any optical fiber alignment function unit 503 in use and an on-hold optical fiber are held. Visual identification of the optical fiber can be performed. With these functions, it is possible to identify the target optical fiber and pull the optical connector plug attached to the tip of the optical fiber to the vicinity of the optical fiber alignment function unit 503.
[0101]
The connection of the optical connector plug that has been pulled one end is changed to a new connection position of the cross-connect function unit 502. This operation can avoid the entanglement of the optical fiber. In the prior art, entanglement occurs every time connection switching is repeated, and thus the optical fiber accommodation density cannot be increased.
[0102]
The optical fiber connected to the output ports of the optical jumper function units 505 and 508 needs to be coated with a coating material having a certain tension and bending rigidity, and a coating structure with a tensile strength material and a plastic coating material is suitable. . As the covering material, a flame-retardant plastic material was used. Non-halogen resins such as polyolefin resin, polyamide resin, and polyester resin were 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 system was used in order to increase the flame retardancy.
[0103]
An optical cord of about 1 mm is useful for high density accommodation of the optical wiring board. As an optical fiber accommodated in the optical jumper function unit 505 (508), one having a core number of 32 to 64 is excellent in terms of operability and accommodation.
As an optical fiber identification method, this system displays an identification symbol representing information such as a number. The identification symbol is a combination of the symbol and number representing the optical fiber core number, and the optical fiber coating is colored or color printed in order to identify one specific core from among the multi-core wires. Discrimination was improved by combining with symbol display. The identification information can be identified from any position on the optical fiber by continuously displaying one or a plurality of the identification information in the outer peripheral direction of the optical fiber and at regular intervals in the length direction. Can be identified from any direction by combining positivity and inversion.
[0104]
The optical fiber alignment board 509 has a function of accommodating a plurality of optical jumper function units 505 (508). There are two types of accommodation methods: vertical accommodation method and horizontal accommodation method. The vertical accommodation method accommodates one or more rows in the vertical or oblique direction, and the horizontal accommodation method accommodates one or more rows horizontally or obliquely. There is a method.
In order to make the length of the output optical fiber of the optical jumper function unit 505 (508) constant and to enable wiring at 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) can be integrated with the optical fiber alignment function unit 503 and accommodated sequentially above the lower portion of the optical fiber alignment panel 509. By this method, the optical jumper function unit 505 (508) can be added without adversely affecting the optical fiber in use.
[0105]
In order to store the extra length of the optical fiber in use in the vertical row accommodation method in the optical wiring accommodation function section, the accommodation positions of the cross-connect function section 502 and the optical fiber alignment board 509 are approximately the center of the height of the optical wiring board mounting rack. This is possible because it is located above the part.
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 (508) are accommodated in the optical fiber alignment function unit 503, and various transmission services are switched by the cross-connect function unit 502, so that the subscriber Can be provided.
[0106]
[Eleventh embodiment]
FIG. 26 is a block diagram showing an optical wiring system of an eleventh example of the present embodiment, which is an example of an optical wiring system that directly accommodates a first in-site optical fiber cable in the optical fiber alignment function unit.
After accommodating the plurality of first in-site optical fiber cables 511 wired from the optical subscriber line terminal equipment housing 513 in the terminal equipment side termination function unit 510, the optical fibers of the first in-house optical fiber cable 511 are It is housed in the optical fiber alignment function unit 503. The optical fiber cable 511 has an optical wiring board housing side in which an optical connector plug is attached to the tip of a single optical fiber.
[0107]
The optical fiber alignment function unit 503 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 optical fiber insertion port so that the optical fiber can be easily inserted and removed easily. It is necessary to have no structure. Applicable to optical subscriber line terminal station equipment transmission services and subscribers on a one-to-one basis, or to optical wiring systems that have the function of distributing communication light between subscriber optical fiber cables and subscribers it can.
[0108]
[Twelfth embodiment]
FIG. 27 is a block diagram showing an integrated optical wiring system of the twelfth example of this embodiment, which includes an optical wiring board A (520) and an optical wiring board B (521), and has an optical wiring management function and an optical test function. 1 is an example of an integrated optical wiring system having
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).
[0109]
The optical wiring board B (521) is located between the subscribers accommodated in the plurality of optical wiring boards A (520) and the plurality of optical subscriber line terminal station accommodation racks 513, and has a function of distributing wiring. In the optical wiring system without the optical distribution board B (521), it is necessary to wire a mesh-like optical fiber cable between the plurality of optical distribution boards A (520) and the plurality of optical subscriber line terminal devices. In addition, the types of optical fiber cables must be prepared from those with few cores to those with many cores. By installing this optical distribution board B (521), it becomes possible to carry out a prior | preceding wiring of the optical fiber cable of many cores, and the congestion of an optical fiber cable wiring can be avoided.
[0110]
The optical wiring board A (520) has a function equivalent to that of FIG. 22, and the optical wiring board B (521) has a function equivalent to that of FIG. An optical fiber cable 516 is used between the optical wiring board A (520) and the optical wiring board B (521). The optical wiring board B (521) has an optical fiber alignment function unit 503 that accommodates the optical fiber cable between the bridges, and the optical wiring board A (520) has an optical jumper function part.
[0111]
Although these functions can ensure the function as an optical wiring system, by incorporating an optical test function, it becomes possible to maintain and monitor the optical wiring from the optical subscriber line terminal equipment to the subscriber. In order to provide the optical test function, test light for optical test is inserted into the optical fiber at the optical subscriber line terminal equipment side or the subscriber side from the vicinity of the cross-connect function unit 502 of the optical distribution board A (520). Optical test access function unit 514 having an optical coupler to perform, optical fiber selection function unit 530 for switching and inserting test light into a plurality of optical test access function units 514, measuring and analyzing test light transmission and test light return light This can be realized by incorporating the optical test function unit 533.
[0112]
Furthermore, a monitor function unit 535 for monitoring communication light and an optical fiber core line contrast function unit 536 for performing optical fiber core line contrast can be incorporated. The component imparting the optical test function can be housed in the lower part of the cross-connect function unit 502 of the optical wiring board A (520) or the optical wiring general function part of the optical wiring board B (521).
[0113]
A subscriber optical fiber cable is connected to one end of the test access function unit 514, and the other end surface is a cross-connect function unit 502. Multiple receptacles are mounted on the cross-connect function unit 502 side. Conventionally, an SC type receptacle has been applied. However, in order to increase the accommodation density of the optical wiring board, it is possible to realize a cross-connect having 4000 terminals or more by applying a small MU type 16-unit receptacle. it can.
[0114]
For connection with a subscriber optical fiber cable, an 8-core multi-fiber connector (MT type) can be used. For example, it is possible to improve the housing density by mounting two 8-fiber connectors with a width of about 10 mm and aligning them with a 16-unit receptacle. As for the extra length of the optical fiber cord of the subscriber optical fiber cable, a partition plate is placed at the center of the test attachment function unit 514 having a width of 10 mm and accommodated on the left and right sides of the partition plate. A 16-fiber multi-fiber connector is useful for connection to the optical fiber selection device.
[0115]
The test light uses a wavelength different from that of the communication light so as not to affect the communication. In addition, an optical filter is inserted in the optical wiring so that the test light does not affect the transmission apparatus. In this system, an optical filter is inserted on the transmission device side of the optical jumper function unit 508. By inserting optical filters at this position, the number of optical filters can be reduced.
[0116]
For these system configurations, by incorporating an optical wiring management function unit 525, complicated optical wiring can be applied to the computer database system 524, and installed in the optical fiber, cross-connect function unit 502, and optical wiring function unit 517. By reading the two-dimensional identification code 519 using the reading device 522, optical wiring information can be registered in the database, and wiring work can be supported.
[0117]
Mounting the two-dimensional identification code on the optical fiber can be realized by attaching a movable tag on the optical fiber coating and applying or printing a method of attaching the identification code on the tag. Bar codes are common 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 required.
[0118]
With this two-dimensional identification code, it is possible to display alphanumeric information of about 30 digits even with a size of 5 mm square or less, and the size can be reduced as compared with a one-dimensional barcode. Since the two-dimensional weaving code is small, it can also be applied to the management of components.
[0119]
For the optical receptacle and optical adapter terminal position information of the cross-connect function unit 502 and the optical wiring function unit 517, a two-dimensional identification code is printed or pasted on each protective cap, or a visual identification symbol representing the terminal information is displayed. Can be realized. If a two-dimensional identification code is applied, there is an advantage that the registration / change processing of the database can be automated.
[0120]
[Thirteenth embodiment]
FIG. 28 is a block diagram showing an optical wiring system according to a thirteenth example of the present embodiment, which is an example of an optical wiring system in which an optical jumper function unit 505 and an optical fiber alignment function unit 503 are integrated.
[0121]
The inter-mounting optical fiber cable 515 is connected to the input port of the optical jumper function unit 505 by a connector, and the optical fiber distributed by the splitter 547 is inserted into the optical fiber alignment function unit 503. The inserted optical fiber is held on the holding board 504 as the holding optical fiber 543.
[0122]
On the other hand, one end face of the test access function unit 514 is connected to a subscriber via a subscriber optical fiber cable 512. The other end face of the test access function unit 514 is a cross-connect function unit 502.
When providing a service to a subscriber, a specific optical fiber on hold is connected by the cross-connect function unit 502. In this case, a specific optical fiber connected in the identification space 544 is visually identified.
[0123]
Since the optical fiber alignment function unit 503 has the rotation extraction function 545, the optical fiber can be easily identified visually. Visual identification of the optical fiber can be performed by an identification symbol 550 and a color identification 549. The optical fiber connected to the cross-connect function unit 502 is completely separated from the pending optical fiber as the optical fiber 542 in use, and does not congest with the pending optical fiber.
[0124]
By attaching a two-dimensional identification code 519 to the optical fiber and cross-connect function unit 502, connection information database registration can be automated. For example, the visibility of the optical fiber identification code is improved 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 other optical fibers. The identification code is attached in the vicinity of the optical connector plug 540. The identification tag 541 can improve operability by adopting a structure that can move on the coating of the optical fiber.
[0125]
As mentioned above, although each embodiment of the present invention has been described, the present invention is not necessarily limited only to the structure and method described above, and the scope of achieving the object of the present invention and having the effects of the present invention. Inside, it can change suitably.
[0126]
【The invention's effect】
As described above, according to the optical wiring system of the first aspect of the present invention, the terminal device side termination functional unit, the terminal device side termination functional unit, the cross-connect functional unit, and the optical wiring functional unit And an optical wiring module including a test access function unit and an optical fiber selection function unit, the optical fiber cable can be arranged in an orderly and manageable manner, and congestion of the wiring path can be avoided. .
[0127]
According to the optical wiring system of claim 3, since the optical wiring module is provided with an optical wiring management function unit that manages optical wiring information, component information, and line information in the optical wiring module, the facility information It can be easily referred to, and erroneous operation of the insertion / extraction optical fiber during the switching operation can be prevented.
[0128]
5. The optical wiring system according to claim 4, wherein the optical wiring module includes an optical test function unit that optically tests an optical fiber of an optical fiber cable, a monitor function unit that monitors communication light and test light, and an optical fiber. Since there is an optical fiber contrast function section for comparing the optical test function section, and a measuring instrument selection function section for selecting one of the optical test function section, the monitor function section, and the optical fiber contrast function section, the facility information Based on the above, it is possible to select a measuring device that selects optical fiber test, communication light and test light monitor, optical fiber core contrast, and optical test function section, monitor function section and optical fiber contrast function section It is possible to provide an efficient optical fiber management and a highly reliable optical fiber network.
[0129]
According to the optical wiring system of the fifth aspect, since the optical wiring module expansion unit is added to the optical wiring function unit of the optical wiring module basic unit, the expansion along with the increase in the number of accommodating cores is facilitated.
[0130]
According to the optical wiring system of the sixth aspect, since the optical wiring management function unit includes the intermediate optical wiring management function unit, the comprehensive optical wiring management unit, and the work support portable terminal, information provision and connection to the connection switching operator It is possible to collect information and cooperate with other operation systems.
[0131]
According to the optical wiring system of claim 7, the cross-connect function unit includes a holding board, a connection board, an alignment board, and an insertion / extraction optical fiber, and the insertion / extraction optical fiber is accommodated before and after the alignment board. Since the optical fiber storage portion is provided, the extra length portion of the insertion / extraction optical fiber can be distributed and stored in the space before and after the alignment board, and the workability when performing the switching operation can be improved. .
[0132]
According to the optical wiring system of the eighth aspect, since the insertion / extraction optical fiber provided with the identification symbol and the work support portable terminal provided with the identification symbol reading function unit are provided, it is easy to identify the insertion / extraction optical fiber by the identification symbol Thus, it is possible to prevent an erroneous operation when performing the switching operation.
[0133]
According to the optical wiring system of claim 9, since the display unit for displaying the instruction data from the intermediate optical wiring management function unit is provided on the connection panel and the holding panel, the switching operation is performed by displaying the instruction data. It is possible to prevent erroneous operation when performing.
[0134]
According to the optical wiring system of claim 10, since the optical fiber selection function unit includes the visible light source connected to the optical fiber selection function unit and the bending imparting unit that leaks visible light to the insertion / extraction optical fiber, Leaked light can be identified, and erroneous operation when switching work can be prevented.
[0135]
According to the optical wiring system of claim 11, the terminal device side termination function unit, the terminal device side termination function unit, the cross-connect function unit, the optical fiber alignment function unit, and the optical wiring accommodation function unit Therefore, the optical fiber cable can be arranged in an orderly manner in an easily manageable manner, and congestion of the wiring path can be avoided.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an optical wiring 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 illustrating 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.
6 is a schematic configuration diagram showing a collective optical fiber cord using the optical fiber cord of FIG. 5. FIG.
7 is an explanatory diagram for explaining a connection state of the collective optical fiber cord of FIG. 6 to a wiring board.
FIG. 8 is an external view showing a modification 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 an on-site facility including an optical wiring system according to a third embodiment of the present invention.
FIG. 16 is a diagram showing a connection form between an optical wiring system according to a 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 embodiment of the present invention;
FIG. 18 is a plan view showing a third example of the optical wiring system according to the third embodiment of the present invention;
FIG. 19 is an explanatory diagram showing a jumper system 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 embodiment of the present invention;
FIG. 22 is a block diagram showing a tenth example of the optical interconnection system according to the third embodiment of the present invention.
FIG. 23 is a configuration diagram showing an optical wiring board of a tenth example of the optical wiring system according to the third embodiment of the present invention.
FIG. 24 is a schematic configuration diagram illustrating an example of an optical jumper function unit having a splitter function according to a tenth example of the optical wiring system according to the third embodiment of the present invention.
FIG. 25 is a schematic configuration diagram showing an optical jumper function unit having no splitter function in the tenth example of the optical wiring system according to the third embodiment of the present invention;
FIG. 26 is a configuration diagram showing an eleventh example of the optical interconnection system according to the third embodiment of the present invention.
FIG. 27 is a configuration diagram showing a twelfth example of the optical interconnection system according to the third embodiment of the present invention;
FIG. 28 is a block diagram showing a thirteenth example of the optical interconnection system according to the third embodiment of the present invention.
FIG. 29 is a block diagram showing an in-house facility for fitting a conventional FTM.
FIG. 30 is a diagram showing an arrangement of in-house facilities in a conventional facility center.
FIG. 31 is a diagram showing a configuration of a conventional FTM including an optical coupler and an FS.
FIG. 32 is a configuration diagram showing a connection part in a conventional FTM.
[Explanation of symbols]
1 FTM
2 Optical coupler
3 Optical fiber selector
4 Test optical fiber
5 Optical multiplexer / demultiplexer
6 Transmission device side optical filter
7 Communication optical subscriber line terminal equipment
8 Video system optical subscriber line terminal equipment
9 Optical subscriber line terminal unit accommodation rack
10 Star coupler rack
11 Test equipment rack
12 Test equipment
13 Optical fiber selector control and test equipment selector
14 FS master side optical fiber
15 In-house optical fiber cable
16 In-house optical fiber cable
17 Subscriber optical fiber cable
18 Subscriber-side optical filter
19 Communication optical subscriber line termination equipment
20 Video system optical subscriber line termination equipment
21 Extra length sorting 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
104 Optical fiber cord
106 Housing
107 alignment board
108 Optical connector adapter
109 Alignment member mounting frame
110 Alignment member
111, 112 arm part
113,114 Optical fiber cord passage opening
113a, 114a opening
120 alignment members
121,122 Arm part
123, 124, 125 Optical fiber cord passage opening
123a, 124a, 125a opening
130 Alignment members
131 One part
132 Other parts
133, 134, 135 Optical fiber cord passage b
133a, 134a, 135a opening
201 Wiring board
202 Connection board
203 Alignment board
204 Hold
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 Collective optical fiber cord
320 optical fiber 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 optical subscriber line terminal equipment
409 Optical subscriber line terminal unit accommodation rack
410 Star coupler rack
411 Test equipment rack
415 In-house optical fiber cable
417 Subscriber optical fiber cable
426 Test Access Function Unit
427 Cross-connect function section
428 Splitter function
429 Optical wiring function part
430 Optical fiber selection function unit
431 Work support portable terminal
432 Intermediate optical wiring management function part
433 Total Optical Wiring Management Department
434 Data communication network
435 Equipment Operation System
436 Integrated Optical Wiring Module
437 Optical wiring management function part
439 Interface between devices
440 Basic module
441 Expansion module
442 Test Access Unit
443 Alignment board
444 Retaining unit
445 optical fiber
446 Wiring unit
447 Connection board
448 In-house optical fiber cable fixing part
449 Holding board
450 In-house 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 monitor device
464 first connection terminal
465 Second connection terminal
471 Measuring instrument selection function
472 Optical Test Function Unit
473 Monitor function section
474 Optical fiber contrast function
480 Terminal unit side termination function unit
481 Termination Function Unit on Terminal Device Side
501 Optical distribution board
502 Cross-connect function unit
503 Optical fiber alignment function unit
504 Reservation part
505 Optical jumper function unit having optical splitter
506 Wiring accommodation function part
507 Terminal unit side termination function unit
508 Optical jumper function without optical splitter
509 Optical fiber alignment board
510 Terminal equipment side termination function unit
511 First in-house optical fiber cable
512 optical fiber cable for subscribers
513 Optical subscriber line terminal unit accommodation rack
514 Test access function
517 Optical wiring function part
519 identification code
520 Optical distribution board A
521 Optical distribution board B
522 reader
524 database system
525 Optical wiring management function part
535 Monitor function part
536 Optical fiber core contrast function unit
540 Optical connector plug
541 Identification tag
542 Optical fiber in use
543 Optical fiber on hold
544 Identification space
545 Rotating drawer function
547 Splitter
549 color identification
550 Identification symbol
551 Connector plug
552 Splitter
560 input port
561 Splitter
562 Output port
563 Optical Filter

Claims (15)

A terminal unit side termination functional unit that terminates a plurality of first optical fiber cables connected to the optical subscriber line terminal unit;
A terminal device-side termination function section for terminating a second optical fiber cable connected to a plurality of optical subscriber terminal devices;
An optical wiring functional unit that distributes the first optical fiber cable from the terminal device side termination functional unit to a plurality of;
A cross-connect function unit for switching connection between an arbitrary optical fiber of the first optical fiber cable and an arbitrary optical fiber of the second optical fiber cable from the optical wiring function unit;
Test access function unit for inputting / outputting test light to / from the optical fiber of the first optical fiber cable and light for selecting the test light input / output port of the test access function unit An optical wiring system comprising: an optical wiring module including a fiber selection function unit. A terminal unit side termination functional unit that terminates a plurality of first optical fiber cables connected to the optical subscriber line terminal unit;
A terminal device-side termination function section for terminating a second optical fiber cable connected to a plurality of optical subscriber terminal devices;
An optical wiring functional unit for distributing the optical fiber of the first optical fiber cable from the terminal device side termination functional unit;
A cross-connect function unit for switching connection between an arbitrary optical fiber of the first optical fiber cable and an arbitrary optical fiber of the second optical fiber cable from the optical wiring function unit;
Test access function unit for inputting / outputting test light to / from the optical fiber of the first optical fiber cable and light for selecting the test light input / output port of the test access function unit An optical wiring system comprising: an optical wiring module including a fiber selection function unit. 3. The optical wiring system according to claim 1 , further comprising a splitter function unit that distributes communication light from the optical subscriber line terminal equipment to a plurality of output ports and outputs the same to the cross-connect function unit. . 4. The optical wiring system according to claim 1 , wherein the optical wiring module includes an optical wiring management function unit that manages optical wiring information, component information, and line information in the optical wiring module. . In the optical wiring module,
An optical test function unit for optically testing an optical fiber of an optical fiber cable connected to the optical fiber selection function unit, a monitor function unit for monitoring communication light and test light, and an optical fiber control for comparing optical fibers 5. The apparatus according to claim 1 , further comprising: a function unit; and a measuring instrument selection function unit that selects any one of the optical test function unit, the monitor function unit, and the optical fiber contrast function unit. optical wiring system of one of claims. The optical wiring module is:
The terminal device side termination function unit, the terminal device side termination function unit, the optical wiring function unit, the splitter function unit, the cross-connect function unit, the test access function unit, and the optical device An optical wiring module basic unit including a fiber selection function unit;
An optical wiring module comprising the terminal device-side termination function unit, the optical wiring function unit, the splitter function unit, the cross-connect function unit, the test access function unit, and the optical fiber selection function unit With an expansion unit,
4. The optical wiring system according to claim 3, wherein the optical wiring module extension unit is added to an optical wiring function unit of the optical wiring module basic unit. The optical wiring management function unit
An optical fiber information management function unit of the optical wiring module, an intermediate optical wiring management function unit including a work support portable terminal, and an information exchange function unit that provides the work support portable terminal with optical wiring information and work support information; ,
According to claim 4, characterized in that a total distribution managing unit that manages the connection with integrated optical wiring information management and other operating systems from a plurality of intermediate distribution managing section Optical wiring system. The cross-connect function unit
A holding plate in which one end of an optical fiber of the plurality of first optical fiber cables is connected and fixed to one side;
One end of the optical fiber of the second optical fiber cable of the reciprocal number is connected and fixed to one side, and a plurality of optical connectors that are connected to the optical fiber and arbitrarily connected to the moving side optical connector are arranged regularly. Connecting board and
An alignment board having a plurality of holding holes for slidably holding the optical fiber;
One end of the holding plate is connected to the optical fiber on the surface facing the surface where the optical fiber of the first optical fiber cable is connected and fixed, passes through the holding hole of the alignment plate, and the other end of the connecting plate It has an insertion / extraction optical fiber to which a moving side optical connector that can be selectively connected to an optical connector is attached,
8. The optical wiring system according to claim 1, further comprising an optical fiber storage portion for storing the insertion / extraction optical fiber before and after the alignment board. 9. The optical wiring system according to claim 8, further comprising a work support portable terminal provided with the insertion / extraction optical fiber provided with an identification symbol and an identification symbol reading function unit. The connection board and holding board are:
10. The optical wiring system according to claim 8, further comprising a display unit for displaying instruction data from the intermediate optical wiring management function unit. 11. The optical wiring system according to claim 8 , further comprising: a visible light source connected to the optical fiber selection function unit; and a bending imparting unit that leaks visible light to the insertion / extraction optical fiber. A terminal unit side termination functional unit that terminates a plurality of first optical fiber cables connected to the optical subscriber line terminal unit;
A terminal device-side termination function section for terminating a second optical fiber cable connected to a plurality of optical subscriber terminal devices;
A cross-connect for switching connection of an optical fiber of the first optical fiber cable from the terminal unit side termination functional unit and an arbitrary optical fiber of the second optical fiber cable from the terminal unit side termination functional unit A functional part;
An optical fiber alignment function unit that accommodates the first optical fiber cable and separates and aligns the optical fiber to be wired to the cross-connect function unit and the optical fiber to be retained;
An optical wiring system comprising: an optical wiring accommodating function unit that connects an arbitrary optical fiber from the optical fiber alignment function unit to an arbitrary terminal of the cross-connect function unit. A holding function unit for holding unused optical fibers;
13. The optical wiring system according to claim 12 , further comprising: an optical fiber alignment board that accommodates the plurality of optical fiber alignment function units. An optical jumper function unit that distributes communication light from the optical subscriber line terminal equipment to one or a plurality of output ports is provided between the optical fiber alignment function unit and the first optical fiber cable. 14. The optical wiring system according to claim 12 or 13, wherein: 15. The optical wiring system according to claim 14, wherein an optical filter that selectively removes light according to wavelength is provided in the optical jumper function unit.

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