JP2000023202A - Optical fiber cable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make switch connection work of an optical fiber cable efficient by providing a connection part which combines a first optical fiber and a second optical fiber and connects them with an aligning panel for holding an insert/ extract optical fiber and with an optical fiber storage part for storing the insert/ extracting optical fiber before and/or behind the aligning panel. SOLUTION: An optical coupler 2 and an insert/extract optical fiber 27 are fixed in a detachable state by an optical connector adapter equipped to a connection panel 47 on a front side of the optical coupler 2 and an optical connector of the insert/extract optical fiber 27. The insert/extract optical fiber 27 is connected to a holding panel 38 by way of a connection panel front side cord tray 30, a front insert/extract optical fiber slack storage part 39, an aligning panel 26, a back insert/extract optical fiber slack storage part 40 and a subscriber's system optical fiber cable fixing part back cord tray 33 and, moreover, is connected to a holding panel unit 49. Since it is possible to easily select the insert/extract optical fiber 27 and the optical connector to be switched even if a slack part of the insert/extract optical fiber 27 exists, an operation time for connection switching is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber cable terminating device in an advanced optical communication network, in which optical fibers are densely and orderly mounted, and the operability of switching connection of the optical fibers can be improved. It relates to a termination device.

[0002]

2. Description of the Related Art A conventional optical fiber cable termination device (F)
TM (Fiber Termination Module) will be described below.
Generally, an FTM is installed at a connection point between a subscriber optical fiber cable and an optical fiber cable in a facility center station building. As a conventional example, there is one described in IEICE Technical Report CS95-50, OCS95-16, p.59-66, "Study on High-speed and Large-capacity Technology of Optical Line Test System".

[0003] FIG. 9 shows a configuration of a facility in a facility including a conventional FTM. 100 is an FTM, 2 is an optical coupler, 3 is an optical fiber selector (FS: Fiber Selector), 4 is a test branch optical fiber from the optical coupler 2, 5 is an optical multiplexer / demultiplexer, 6 is a transmission device side optical filter, Reference numeral 7 denotes a communication optical network unit.
Is an optical subscriber line terminal equipment, 9 is an optical subscriber line terminal equipment accommodation frame, 10 is a star coupler frame, and 11 is a test equipment frame (TE
M: Test Equipment Module, 12 is a test device, 13 is an optical fiber selection device control and test device selection device (FTE)
S), 14 is the FS master side optical fiber, 15 is the first in-house optical fiber cable, 16 is the second 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.

A mode for providing communication and video services via optical fibers will be described with reference to FIG.
In order to provide this service with high reliability, the equipment center has an FTM100, an optical line terminal equipment housing 9,
A star coupler frame 10 and a TEM 11 are installed.

[0005] The 1.3 μm band communication light output from the communication optical network unit 7 for providing communication and the output from the video optical network unit 8 for providing video services.
The communication light in the 1.55 μm band is transmitted through the optical fiber cable 15
And is incident on the star coupler mount 10 via the. In the optical multiplexer / demultiplexer 5 of the star coupler frame 10, the 1.3 μm band and the 1.55 μm band
The communication light with the m band is wavelength-multiplexed, and the communication light wavelength-multiplexed to a plurality of output ports is equally distributed. The communication light output from each port of the optical multiplexer / demultiplexer 5 enters the FTM 100 via the second in-house optical fiber cable 16. FT
The communication light incident on the M100 passes through the optical coupler 2 for multiplexing and demultiplexing the test light, and via the optical fiber cable 17 for the communication system, the communication system optical network unit 19 and the video system optical network unit. The wavelength is demultiplexed to the device 20 and provided as a communication and video service.

A method of testing an optical fiber from within an installation center when laying and maintaining an optical fiber cable will be described below. By the FS 3 in the FTM 100, the test branch optical fiber 4 from the optical coupler 2 and the FS master side optical fiber 14 connected to the test apparatus 12 in the TEM 11 are connected.
Selectively optically couple. 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.

Here, when performing the test, the test light is cut off and the communication light is transmitted in order to prevent the test light from entering the communication optical network unit 19 and the video optical network unit 20. The subscriber-side optical filter 18 is installed immediately before the communication-system optical network unit 19 and the video-system optical network unit 20 for test light. The test optical and video optical subscriber line terminal 8 output 1.55 μm to the communication optical subscriber line terminal 7.
In order to prevent the reflected light of the m-band communication light from entering, the transmission-side optical filter 6 that blocks the test light and the communication light in the 1.55 μm band and transmits the communication light in the 1.3 μm band is an optical multiplexer / demultiplexer. 5 of
Installed at the input port of the 1.3μm communication light.

FIG. 10 is a diagram showing the configuration of a conventional FTM 100 having an optical coupler 2 and an FS3, and portions corresponding to those in FIG. 9 are denoted by the same reference numerals. FIG.
In the figure, reference numeral 21 denotes a surplus length sorting member, and 22 denotes a surplus processing shelf. On the left side of the FTM 100, a plurality of optical couplers 2 are housed side by side for each stage, and a test branch optical fiber 4 branched from each optical coupler 2 is connected to the FS 3 arranged at the bottom. On the right side, an extra length accommodation space is provided, in which an extra length distributing member 21 and an extra length processing shelf 22 for mainly accommodating the extra connection length of the second in-house optical fiber cable 16 are provided.

FIG. 11 is a diagram showing the configuration of a connection section in a conventional FTM. Portions corresponding to the respective sections in FIGS. 9 and 10 are denoted by the same reference numerals. In FIG. 11, reference numeral 23 denotes an optical connector adapter, reference numeral 24 denotes an optical connector, and reference numeral 25 denotes a single-core tape core connection portion. The optical coupler 2 is provided with a single-core tape core connecting portion 25 and an optical connector 24 in advance.

At the start of the service, the subscriber optical fiber cable 17 and the FS master side optical fiber 14 are connected to the optical coupler 2. Next, the optical connector 24 of the second in-house optical fiber cable 16 is connected to the optical connector adapter 23 connected to the optical coupler 2, and the service is started. in this case,
The length of the wiring path of the second in-house optical fiber cable 16 from the extra length sorting member 21 to the optical coupler 2 is not uniform.
Accordingly, in the second in-house optical fiber cable 16, an extra length is inevitably generated in the optical fiber portion connected to the optical coupler 2, and the F
This extra length processing becomes a problem when the density of the accommodated core wires in the TM is increased.

In the conventional FTM, the extra length distributing member 21 and the extra length processing shelf 22 are designed to accommodate the extra length of the second in-house optical fiber cable 16 in front of the FTM. When switching the optical fiber between the subscriber optical fiber cable and the in-house optical fiber cable by construction work or failure recovery work, etc., the entanglement between the switched optical fiber and the other optical fibers is released, and there is no erroneous disconnection. It took a long time to work.

[0012]

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to realize a high-density mounting of a subscriber optical fiber cable and an in-house optical fiber cable, and to increase the efficiency of switching connection work. To provide an optical fiber cable termination device.

[0013]

In order to achieve the above object, an optical fiber cable termination device according to the present invention provides an optical fiber cable having an input / output port for inputting / outputting test light to / from a first optical fiber and a second optical fiber. An optical fiber selecting section for selecting an input / output port of the demultiplexing section and the optical multiplexing / demultiplexing section and connecting to the test measuring instrument, a termination section for terminating the first optical fiber cable and the second optical fiber cable, and A connecting portion for connecting the first optical fiber from the first optical fiber cable and the second optical fiber from the second optical fiber cable in combination, wherein the connecting portion includes a plurality of insertion / removal optical fibers; One end of an optical fiber is fixedly penetrated from one surface to the other surface and is connected to the plurality of first optical fibers on the other surface. One end of the plurality of second optical fibers is fixedly penetrated from one surface to the other surface and the other. Multiple in terms of A connection board selectively connected to the extracted optical fiber, and an alignment board having a plurality of holding holes for slidably holding the inserted and removed optical fiber, further comprising the insertion and removal optical fiber before and after the alignment board. An optical fiber storage section is provided.

According to such an optical fiber cable termination device of the present invention, the connecting portion includes the aligning plate, the holding plate, the connecting plate, and the insertion / removal optical fiber, and further includes the optical fiber storage portion before and after the aligning plate. As a result, the extra length of the insertion / extraction optical fiber can be dispersed and accommodated in the space before and after the alignment board, and the workability of the switching operation can be significantly improved.

It is preferable that the optical fiber inserted into and removed from the optical fiber cable termination device of the present invention is an optical fiber containing an antistatic agent inside its coating. Further, the insertion / extraction optical fiber may be a carbon coated optical fiber. Moreover, you may use both together. Such a device of the present invention can prevent the optical fiber from being entangled by static electricity.

Further, in the optical fiber cable termination device of the present invention, it is preferable that the insertion / removal optical fiber is provided with an insertion / removal optical fiber stopper for being retained in the holding hole of the alignment board. Such an apparatus of the present invention can prevent erroneous operation of the insertion / removal optical fiber when performing the switching operation, and also prevent breakage. Further, it is desirable that the insertion / removal optical fiber stopper is provided with an identification code. With such an apparatus of the present invention, the workability of the confirmation work when performing the switching work is remarkably improved.

Further, in the optical fiber cable termination device of the present invention, the aligning plate is provided with an insertion slit for inserting the insertion / removal optical fiber into the holding hole and / or a common slit connected to the plurality of holding holes. Is desirable. According to the apparatus of the present invention, when the optical fiber is additionally inserted into or removed from the holding hole, it is not necessary to pass the connector of the optical fiber through the holding hole. Work becomes easier. Further, it is possible to increase the accommodation capacity of the insertion / extraction optical fiber per area of the alignment board. Further, the diameter of the holding hole of the alignment board may be a diameter capable of holding a plurality of insertion / removal optical fibers. Such a device of the present invention can further increase the accommodation density of the insertion / removal optical fiber.

Further, in the optical fiber cable terminating device of the present invention, the terminating portion accommodates a plurality of first optical fibers in a unit and connects the first optical fibers internally to the ends of the first optical fibers one by one. A holding board unit that includes a single-core optical connector and connects the first optical fiber to an insertion / extraction optical fiber end of the other face of the holding board, and a plurality of second optical fibers housed therein;
A test access unit accommodating the plurality of optical multiplexing / demultiplexing units, accommodating the optical fiber selecting unit, and connecting a second optical fiber from the optical fiber selecting unit to one surface of the connection board. desirable. Such a device according to the present invention makes it possible to increase the connection length of the optical component and the optical fiber, thereby improving the economy and workability. Further, this makes it possible to increase the density and reduce the size of the entire FTM.

Further, in the optical fiber cable terminating device according to the present invention, the holding board unit may include an optical splitter for branching one optical fiber into a plurality of optical fibers. With the apparatus of the present invention, the optical multiplexer / demultiplexer conventionally housed in the star coupler frame can be included in the holding board unit, so that the space in the equipment center can be reduced, and economical equipment operation can be achieved. It is possible to do.

Further, in the optical fiber cable terminating device of the present invention, the holding board, the connecting board, the aligning board, the holding board unit and the test access unit are divided into a plurality of parts, and a plurality of test access units are connected to a test measuring device. A second optical fiber selection device may be provided for selectively connecting the connection port to the test and measurement instrument. With such a device of the present invention, an optical cable can be added every predetermined number, so that efficient operation is possible.

Further, in the optical fiber cable terminating device of the present invention, it is preferable that the optical fiber selecting section includes a visible light inserting section and a bending applying section for leaking visible light from the inserting and removing optical fiber. According to such an apparatus of the present invention, identification can be made by visible light leaking to the outside from the bent portion of the insertion / removal optical fiber, so that erroneous operation of the insertion / removal optical fiber at the time of performing a switching operation can be prevented.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the optical fiber cable terminating apparatus according to the present invention will be described.

[First Embodiment] A first embodiment will be described with reference to FIGS.
An embodiment will be described. 1 is a front view of the FTM of the embodiment, FIG. 2 is a top view, FIG. 3 is a view showing a route of an optical wiring in the FTM,
FIG. 4 is a diagram for explaining the procedure of the connection changing operation. In these figures, parts corresponding to the respective parts in FIGS. 9 to 11 are denoted by the same reference numerals.

In FIG. 1, 1 is an FTM, 26 is an alignment board,
27 is an insertion / removal optical fiber, 28 is a subscriber optical fiber cable extra length processing part, 29 is an internal termination cable extra length processing part, 30
Is the front cord tray of the connection board, 32 is the front cord tray of the optical fiber cable fixing section of the subscriber system, 34 is the fixing section of the optical fiber cable of the subscriber system, 39 is the extra length storage section of the optical fiber insertion / removal section, 47 is the connection board, and 49 is It is a holding board unit. In FIG. 2, 31 is a code tray on the back of the connection panel, 33 is a code tray on the back of the optical fiber cable fixing part of the subscriber system, 35 is a cable fixing part in the office, 36 is an optical fiber cable cord part of the subscriber system, and 37 is an in-house component. End cable cord part, 38 is holding board,
Reference numeral 40 denotes a rear insertion / extraction optical fiber extra length storage section, and reference numeral 41 denotes an insertion / extraction optical fiber stopper. In FIG. 3, reference numeral 48 denotes a test access unit.

The test access unit 48 accommodates a plurality of optical fibers from the subscriber optical fiber cable 17 in units of a plurality of optical couplers 2 and the optical coupler 2 and the TEM 11.
Are connected to the insertion / extraction optical fiber 27 by a connection board 47. The holding board unit 49 accommodates a plurality of optical fibers from the second in-house optical fiber cable 16 in a unit, and connects the plurality of optical fibers to the insertion / extraction optical fiber 27 held in the holding board 38 in a unit.

Next, the wiring route of the optical fiber cable in the FTM will be described. The subscriber optical fiber cable 17 is fixed by a subscriber optical fiber cable fixing portion 34, and the subscriber optical fiber cable cord portion 36, which is the distal end of the subscriber optical fiber cable 17, is connected to the subscriber optical fiber cable. From the fixed part 34 to the subscriber system optical fiber cable extra length processing parts
It is connected to the back of the optical coupler 2 through the code tray 31 and the back of the connection board 31. Here, of the subscriber optical fiber cable 17, the distal end of the optical coupler 2 side after the subscriber optical fiber cable fixing section 34 is a subscriber optical fiber cable cord section 36.

The optical coupler 2 and the optical fiber 27 are connected to each other by an optical connector adapter provided in a connection board 47 on the front surface of the optical coupler 2.
23 and the optical connector 24 of the insertion / extraction optical fiber 27 are detachably fixed. The insertion / extraction optical fiber 27 includes a connection board front code tray 30, a front insertion / extraction optical fiber extra length storage section 39, an alignment board 26, a rear insertion / extraction optical fiber extra length storage section 40, and a subscriber system optical fiber cable fixing section rear code tray 33. Through the connection, it is connected to the holding board 38 and further connected to the back of the holding board unit 49.

The insertion / removal optical fiber 27 accommodated in the holding board unit 49 is connected to an in-house terminated cable cord section 37 on the front surface of the holding board unit 49, and the in-house terminated cable cord section 37 is provided.
Is fixed to the in-house cable fixing unit 35 via the front-end code tray 32 of the subscriber system optical fiber cable fixing unit and the in-house termination cable extra length processing part 29. Station cable fixing part
The first in-house optical fiber cable 15 from 35 is wired to another in-house device. Here, in the first in-house optical fiber cable 15, the in-house cable fixing portion 35 at the end of the holding board unit 49 and the in-house terminal cable cord portion 37 are used.

Next, a method for changing the connection of the insertion / removal optical fiber 27 using the alignment board 26 will be described with reference to FIG. Since the insertion / removal optical fiber 27 is loosely held by the alignment board 26 so as to be slidable, the extra length of the insertion / removal optical fiber 27 is dispersed in the front insertion / removal optical fiber extra length storage section 39 and the rear insertion / removal optical fiber extra length storage section 40. And store it. Also, when the connection is changed, even if there are many extra lengths of the optical fiber 27 in the front optical fiber extra length storage section 39, the optical connector 24 is once pulled up to the holding hole position of the alignment board 26, so that operability is improved. And visibility can be ensured.

The connection of the insertion / removal optical fiber 27 is changed by a connection board 47.
This is performed by replacing the optical connector 24 of the insertion / removal optical fiber 27 fixed to the first optical connector adapter 23 included in the first optical connector adapter 23 with the second optical connector adapter 23 included in the connection board 47. FIG. 4A shows the connection state. The optical connector 24 of the optical fiber 27 is fixed to the first optical connector adapter 23. In FIG. 4B, the optical connector 24 is pulled out of the first optical connector adapter 23. In FIG. 4 (c), the insertion / removal optical fiber 27 from which the optical connector 24 has been pulled out is aligned with the alignment board 26.
Optical connector 24 of the optical fiber 27
Is pulled back to near the holding hole of the alignment board 26. This allows
From the front insertion / removal optical fiber extra length storage section 39 in which the extra lengths of many insertion / removal optical fibers 27 are stored, the optical connector 24
Can be selected. In FIG. 4D, the optical connector 24 is selected, and the optical fiber 27 is pulled out to the front surface of the alignment board 26 by a necessary length. At this time, the position of the optical fiber 27 is set outside the other optical fiber, and the optical connector 24 of the optical fiber 27 is connected to the second optical connector adapter 23 of the connection board 47. In FIG. 4 (e), the extra length of the insertion / extraction optical fiber 27 is changed to the front insertion / extraction optical fiber extra length storage section 39 and the rear insertion / extraction optical fiber extra length storage section 40.
In addition, it is stored in a well-balanced manner to ensure operability and visibility.

According to this embodiment, even if the extra length of the optical fiber 27 is present, the optical fiber and the connector to be switched can be easily selected, so that the operation time at the time of connection change can be shortened. .

[Second Embodiment] In this embodiment, a carbon coated optical fiber is used as the insertion / extraction optical fiber 27.
According to this embodiment, it was possible to prevent static electricity generated when winding and pulling out the optical fiber for insertion and extraction, and to prevent the optical fiber from being entangled. Further, in the embodiment in which the antistatic agent was kneaded into the covering material of the insertion / removal optical fiber, the effect of suppressing the generation of static electricity was further improved.

Third Embodiment In this embodiment, an insertion / removal optical fiber stopper 41 is attached to the insertion / removal optical fiber 27. In FIG. 3, the insertion / removal optical fiber on the rear side of the alignment board 26 is shown.
By attaching the insertion and removal optical fiber stopper 41 to 27,
It was possible to prevent the optical fiber 27 from being pulled out too much. Since the optical connector 24 is provided on the front side of the alignment board 26, the insertion / removal optical fiber 27 does not come off the front and back of the alignment board 26. The insertion / removal optical fiber stopper 41 has a size and shape that cannot pass through the holding hole 44 of the alignment board 26, and
It serves to prevent bending and twisting due to excessive pulling out of the insertion / extraction optical fiber 27 wired from to the holding board 38.

[Fourth Embodiment] In this embodiment, an insertion / removal optical fiber identification symbol using a bar code is given to the insertion / removal optical fiber stopper 41. In this embodiment, since the necessary insertion / removal optical fiber 27 can be easily selected using a barcode reader, when the insertion / removal optical fiber 27 is wound up, the insertion / removal optical fiber 27 can be reliably and quickly taken from the rear surface of the alignment board 26. Was able to make a choice. As a result, it is possible to improve operability and prevent erroneous operations when changing the connection.

[Fifth Embodiment] In this embodiment, an example in which the aligner 26 shown in FIG. 5 is used will be described. In FIG. 5, 44 is a holding hole, 45 is an optical fiber insertion slit, 46
Denotes a lid for an insertion / removal optical fiber insertion slit. In this embodiment, a method of attaching and detaching the insertion / removal optical fiber 27 to / from the alignment board 26 when adding or reconnecting the insertion / removal optical fiber 27 will be described. First, when inserting, the slit lid 46
Is removed, and the optical fiber 27 is inserted from the right side of the slit 45 and guided to the holding hole 44 of the alignment board 26. After insertion, the slit cover 46 is attached to prevent the optical fiber 27 from coming out. Next, when extracting the insertion / removal optical fiber 27 from the alignment board 26, the slit cover 46 is removed, the insertion / removal optical fiber 27 is withdrawn from the holding hole 44, and the slit 45 is moved to be pulled out from the right side of the slit 45. After the removal, the slit cover 46 is attached so that the remaining insertion / removal optical fiber 27 does not come off. The diameter of the holding hole 44 of the alignment board 26 is almost the same as the diameter of the insertion / extraction optical fiber 27, and the insertion / extraction optical fiber 27 is accommodated in the alignment board 26 at high density.

[Sixth Embodiment] In this embodiment, an example in which the aligner 26 shown in FIG. 6 is used will be described. In the arrangement of the aligning board 26 shown in FIG.
To have a size to accommodate This allows
The insertion / extraction optical fiber 27 can be accommodated in the alignment board 26 at a higher density.

[Seventh Embodiment] In this embodiment, as shown in FIG. 7, a configuration is used in which the insertion / removal optical fiber 27 is identified using visible light. The visible light generated by the He-Ne laser 43 is inserted from the FS master side optical fiber 14, and
3. Propagating to the insertion / extraction optical fiber 27 through the test branch optical fiber 4 from the optical coupler 2, the optical coupler 2 and the connection board 47,
The laser light leaks outside at the bent portion of the insertion / extraction optical fiber 27 stored in the front insertion / extraction optical fiber extra length storage section 39 and the rear insertion / extraction optical fiber extra length storage section 40. By visually checking the leaked light, the insertion / removal optical fiber 27 could be identified. Thus, when winding the insertion / removal optical fiber 27, the insertion / removal optical fiber 27 can be reliably and quickly selected from the rear surface of the alignment board 26, so that workability can be improved when performing a connection changing operation, and erroneous operation can be prevented. We were able to. Similar effects were obtained by using a semiconductor laser instead of a He-Ne laser as a visible light source.

Eighth Embodiment In this embodiment, as shown in FIG. 8, a splitter module having an optical multiplexer / demultiplexer 5 and a transmission-side optical filter 6 in a holding board unit 49 is shown.
Including 42. With such a configuration, it is possible to adopt a configuration in which a conventionally used star coupler rack is incorporated in the FTM, and it is possible to reduce the space occupied by the FTM in the equipment center. Splitter module 42
Can be a detachable unit.

[0039]

As described above, according to the FTM of the present invention, the connection between the subscriber optical fiber cable and the in-house optical fiber cable includes the holding board, the connecting board, the aligning board, and the insertion / removal optical fiber. By this, improvement of optical fiber extra length storage capacity, prevention of entanglement when performing connection replacement, and,
It is possible to improve the workability when the connection is changed. Further, erroneous operation in connection replacement work can be prevented by using an insertion / removal optical fiber identification system using a barcode or a visible light source. Further, by making the splitter module a detachable unit, a flexible system design according to the network form can be made.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of an optical fiber cable termination device according to the present invention.

FIG. 2 is a top view of the embodiment of FIG.

FIG. 3 is a diagram showing a route of an optical wiring in an optical fiber cable termination device.

FIG. 4 is a diagram illustrating a procedure of a connection changing operation.

FIG. 5 is a diagram illustrating an embodiment of an alignment board in the optical fiber cable termination device of the present invention.

FIG. 6 is a view for explaining another embodiment of the alignment board in the optical fiber cable termination device of the present invention.

FIG. 7 is a diagram illustrating a configuration for identifying an insertion / removal optical fiber using visible light in the optical fiber cable termination device of the present invention.

FIG. 8 is a diagram illustrating a splitter module in the optical fiber cable termination device of the present invention.

FIG. 9 is a diagram showing a configuration of an in-house facility including a conventional optical fiber cable termination device.

FIG. 10 is a diagram illustrating a configuration of a conventional optical fiber cable termination device including an optical coupler and an FS.

FIG. 11 is a diagram showing a configuration of a connection unit in a conventional optical fiber cable termination device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Optical fiber cable termination device of this invention 2 Optical coupler 3 Optical fiber selection device (FS) 4 Test branch optical fiber from an optical coupler 5 Optical multiplexer / demultiplexer 6 Transmission device side optical filter 7 Communication system optical subscriber line terminal Apparatus 8 Video system optical subscriber line terminal equipment 9 Optical subscriber line terminal equipment accommodation frame 10 Star coupler frame 11 Test device frame (TEM) 12 Test device 13 Optical fiber selection device control and test device selection device (FTES) 14 FS master side optical fiber 15 First station optical fiber cable 16 Second station optical fiber cable 17 Subscriber optical fiber cable 18 Subscriber optical filter 19 Communication optical subscriber line termination device 20 Video optical subscriber line termination device DESCRIPTION OF SYMBOLS 21 Extra length distribution member 22 Extra length processing shelf 23 Optical connector adapter 24 Optical connector 25 Single fiber core connection part 26 Alignment board 2 7 Insertion / removal optical fiber 28 Extra length processing part for subscriber optical fiber cable 29 Extra length processing part for termination cable in office 30 Connection panel front code tray 31 Connection panel rear code tray 32 Subscriber optical fiber cable fixing part front code tray 33 Join Optical fiber cable fixing part back cord tray for subscriber system 34 Optical fiber cable fixing part for subscriber system 35 Internal cable fixing part 36 Subscriber optical fiber cable cord part 37 Terminating cable cord part in office 38 Holding board 39 Front extra insertion / extraction optical fiber length Storage section 40 Back insertion and removal optical fiber extra length storage section 41 Insertion and removal optical fiber stopper 42 Splitter module 43 He-Ne laser 44 Holding hole 45 Insertion and removal optical fiber insertion slit 46 Insertion and removal optical fiber insertion slit cover 47 Connection board 48 Test access unit 49 Holding Board Tsu DOO 100 conventional optical fiber cable termination device

Continued on the front page (72) Inventor Keitaka Enomoto 3-19-2 Nishi Shinjuku, Shinjuku-ku, Tokyo Japan Telegraph and Telephone Corporation (72) Inventor Nobuo Tomita 3- 19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Japan Telegraph and Telephone Co., Ltd. (72) Inventor Masao Tachikura 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo Japan Telegraph and Telephone Co., Ltd. F-term (reference) 2H038 CA37 CA38 5K002 AA07 BA02 BA04 BA05 BA06 BA33 FA01 GA01 5K042 AA04 CA10 CA16 CA23 EA03 EA11 FA21 5K073 AA03 AA07 CC36 CC43 CC44 EE02 GG03 JJ03 JJ17 JJ26

Claims (11)

[Claims] An optical multiplexing / demultiplexing unit having input / output ports for inputting / outputting test light to / from a first optical fiber and a second optical fiber, and an input / output port of the optical multiplexing / demultiplexing unit are selected and connected to a test measuring instrument. A termination section that includes an optical fiber selection section and terminates the first optical fiber cable and the second optical fiber cable;
An optical fiber cable terminating device comprising a connecting portion for connecting a first optical fiber from a first optical fiber cable and a second optical fiber from a second optical fiber cable in combination, wherein the connecting portion has a plurality of insertion / removal portions. An optical fiber, one end of the plurality of insertion / removal optical fibers is fixedly penetrated from one surface to the other surface, and the holding plate connected to the plurality of first optical fibers on the other surface; A connection board fixedly penetrated to the other surface and selectively connected to the plurality of insertion / removal optical fibers on the other surface, and an alignment board having a plurality of holding holes for loosely holding the insertion / removal optical fiber slidably; An optical fiber cable terminating device, comprising: an optical fiber storage section for storing the insertion / removal optical fiber before and after the alignment board. 2. The optical fiber cable termination device according to claim 1, wherein the insertion / removal optical fiber is an optical fiber containing an antistatic agent inside its coating. 3. The optical fiber cable termination device according to claim 1, wherein the insertion / extraction optical fiber is a carbon coated optical fiber. 4. The optical fiber cable termination according to claim 1, wherein said insertion / removal optical fiber is provided with an insertion / removal optical fiber stopper for being retained by a holding hole of an alignment board. apparatus. 5. The optical fiber cable termination device according to claim 4, wherein the insertion / removal optical fiber stopper is provided with an identification code. 6. The alignment disk according to claim 1, wherein the aligning plate includes an insertion slit for inserting the insertion optical fiber into the holding hole and / or a common slit connected to the plurality of holding holes. The optical fiber cable termination device according to claim 1. 7. The light according to claim 1, wherein a diameter of the holding hole of the alignment board is a diameter capable of holding a plurality of insertion / removal optical fibers. Fiber cable termination device. 8. The first optical fiber, wherein the terminating portion includes a single-core optical connector in which a plurality of first optical fibers are accommodated in units of a single fiber and internally connected to the ends of the first optical fibers one by one. The holding board unit that connects to the end of the insertion and removal optical fiber on the other surface of the holding board, and the second optical fiber is accommodated in a plurality of units,
A test access unit accommodating the plurality of optical multiplexing / demultiplexing units, accommodating the optical fiber selecting unit, and connecting a second optical fiber from the optical fiber selecting unit to one surface of the connection board. The optical fiber cable termination device according to any one of claims 1 to 7, wherein: 9. The optical fiber cable termination device according to claim 8, wherein the holding board unit includes an optical splitter that branches one optical fiber into a plurality of optical fibers. 10. The holding board, the connecting board, the aligning board, the holding board unit and the test access unit are divided into a plurality of parts, and connection ports of the plurality of test access units with the test measuring instruments are selectively connected to the test measuring instruments. The optical fiber cable termination device according to claim 8, further comprising a second optical fiber selection device that performs the operation. 11. The optical fiber selecting unit according to claim 1, wherein the optical fiber selecting unit includes a visible light inserting unit and a bending applying unit that leaks visible light from the inserting and removing optical fiber. An optical fiber cable terminating device according to claim 1.