JP2002098840A - Optical connection module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical connection module that helps to improve workability in connecting a connecting optical cord to an outside optical cord. SOLUTION: An optical branching module 8 has a module body 16, which is provided with an inner and an outer bend radius controlling member 35, 36 in the storage part 28 for a connecting optical cord. In an area between these radius controlling members 35, 36, an extra length of a connecting coated optical fiber of a tape 12 is stored in a wound state with the minimum bend radius secured, and is taken out of the module body 16. The connecting coated optical fiber of the tape 12 is in a state freely pushed in or taken out of the storage part 28. This connecting tape 12 and an outside coated optical fiber of a tape 11 are connected by an optical connector 20 which is retained in a connector holding member 44 provided in the rear face of the module body 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical connection module for connecting an office optical code and an office optical code.

[0002]

2. Description of the Related Art As a conventional optical connection module, for example, an optical branching module described in Japanese Patent Application Laid-Open No. 9-258033 is known. The optical branching module described in this publication includes a main body in which a plurality of branch connection tape cords and optical components are stored, and a drawer case provided detachably with respect to the main body. The drawer case has a connector for detachably supporting an optical connector for optically connecting the termination-side tape cord to the branch connection tape cord, and an optical connector for optically connecting the selection tape cord to the branch connection tape cord. A holder is provided.

[0003] Japanese Patent Application Laid-Open No. 9-258035 discloses an optical branching module similar to the above.

[0004]

However, in the above-mentioned prior art, when connecting the termination side tape cord and the branch connection tape cord, the drawer case is pulled out from the main body. Open and take out the optical connector from the connector holder in the drawer case. Connect the termination side tape cord and the branch connection tape cord by the optical connector. Store the extra connection length of the optical connector and the branch connection tape cord in the drawer case. Multiple steps, such as reattaching the drawer case to the main unit, were necessary, and the connection work was complicated.

An object of the present invention is to provide an optical connection module that can improve workability when connecting a connection optical cord and a station outside optical cord.

[0006]

SUMMARY OF THE INVENTION The present invention relates to an optical connection module which is housed in an optical termination and connects an office optical code and an office optical code. A module main body having a connection optical cord storage section for storing the extra connection length of the cord therein, and a connection optical code and a station outside optical fiber provided on one end surface of the module main body and led out from the connection optical code storage section And a connector holding member for detachably holding an optical connector connected to the optical cable.The connection optical cord storage section secures a minimum bending radius of the connection optical cord, and increases a connection margin of the connection optical cord. It is characterized in that it is configured to be housed so that it can be pushed in and out freely.

In such an optical connection module, when connecting the outside office optical cord and the connection optical cord, first, the extra connection length of the connection optical cord stored in the connection optical cord storage section is determined by the module main body. Pull out from inside. And
The connection optical cord and the office-side optical fiber are connected by an optical connector, and the optical connector is held by a connector holding member. Then, the extra connection length of the connection optical cord is pushed into the module main body. In this way, in a state where the optical connection module is housed in the optical termination, the connection work between the office outside optical cord and the connection optical cord can be performed. This is because the connector holding member is provided not on the inside of the module main body but on one end surface of the module main body, and with the minimum bending radius of the connection optical cord secured, the extra connection length of the connection optical cord can be pushed and pulled out freely. This is made possible by configuring the connection optical cord storage section so as to be stored. Accordingly, unnecessary work such as opening the cover of the module is not required, and workability when connecting the connection optical cord and the outside optical fiber is improved. In addition, since the connection operation can be performed while the optical connection module is housed in the optical termination, the extra length of the connection optical cord is not required, and the size of the connection optical cord storage portion can be reduced accordingly. This makes it possible to reduce the size of the optical connection module. Furthermore, by setting the shape of the cord outlet formed in the module body to a shape corresponding to the cross-sectional shape of the optical cord for connection, the optical cord for connection can be pulled out without twisting.

[0008] Preferably, the connecting optical cord storage section is provided with a first bending radius restricting member for restricting the bending radius of the connecting optical cord to a minimum bending radius or more, and provided around the first bending radius restricting member. A second bending radius regulating member that regulates the bending radius of the connection optical cord to be equal to or greater than the minimum bending radius, in a region between the first bending radius regulating member and the second bending radius regulating member. It is configured so that the extra connection length of the connection optical cord is wound and stored. Accordingly, the connection optical cord storage portion having a simple structure can be stored in such a manner that the extra connection length of the connection optical cord can be pushed in and pulled out while the minimum bending radius of the connection optical cord is secured.

[0009] Preferably, the module main body has a station outside optical cord storage section for storing the extra connection length of the station outside optical cord. This eliminates the need for providing a member for storing the extra connection length of the outside optical cable on the frame of the optical termination, so that a plurality of outside optical cables connected to a plurality of optical connection modules can be used. Problems such as entanglement of optical codes outside the station that occur when the optical cords are stored together are avoided. In this case, since the structure of the frame is simplified, the size of the frame can be reduced, or more optical connection modules can be stored if the size of the frame is not changed. In addition, the reason that the outside optical cord storage section can be provided in the module body without increasing the size of the optical connection module is that the space for the connection optical cord storage section is reduced as described above. are doing.

[0010] Further, preferably, the connection optical cord storage portion is arranged in parallel to a side surface of the module main body,
A partition plate that forms two extra length storage areas for storing the extra connection length of the connection optical cord, a guide groove formed on one surface of the partition plate for guiding the connection optical cord, and this guide groove A guide hole for guiding the connection optical cord to the other surface side of the partition plate, and two sets of connector holding members, and these connector holding members are It is provided on one end face of the module body at a portion corresponding to each extra length storage area. Thereby, the extra connection length of the two sets of connection optical cords can be stored in the connection optical cord storage section with good space efficiency. At this time, in a state where the two sets of connection optical cords are inserted into the guide grooves together, one connection optical cord is moved from the guide hole to the extra length storage area on the other side of the partition plate. It is possible to easily store the extra connection length of the set of connection optical cords.

In this case, it is preferable that the two sets of connector holding members are provided so as to be shifted in height position. As a result, even when the two sets of connector holding members are arranged close to each other in the thickness direction of the module main body, they are in a connected state at the time of connection between the office outside optical cord and the connection optical cord or at the time of connection switching. The possibility of touching an adjacent optical connector is reduced. For this reason, it is possible to reduce the size in the thickness direction of the module main body while preventing transmission signals of other live lines from being affected.

[0012] Preferably, the connector holding member comprises:
A first hook portion for holding a connection optical cord;
And a second hook portion disposed below the hook portion for holding the optical connector so as to restrain the optical connector in the front-rear direction. In this case, when holding the optical connector in the state where the connection optical cord and the outside optical cable are connected to the connector holding member, the connection optical cord is hooked on the first hook portion, and then the optical connector is dropped. Hook on the second hook. Then, when removing the optical connector from the connector holding member, the optical connector is lifted and removed from the second hook portion, and then the connection optical cord is removed from the first hook portion. Thus, the optical connector can be easily attached to and detached from the connector holding member.

Further, preferably, the module main body includes:
An optical component storage unit for storing an optical component including an optical coupler unit connected to the connection optical cord is provided therein, and a test optical code is branched and connected to the optical coupler unit. Thus, by connecting the test optical cord to the optical pulse tester, it is possible to cope with an optical communication network that requires an optical line test function.

In this case, a guide groove for guiding the test optical cord downward so as to secure a specified bending radius of the test optical cord is provided above the connector holding member on one end face of the module body, and the guide groove is provided. And a holding member for holding the test optical cord stored therein. Thus, for example, when connecting the test optical cord to an optical switch or the like disposed above the optical connection module, the test optical cord is placed at a position lower than the height position of the optical switch or the like, and furthermore, has a minimum radius of curvature. Can be routed in a state where it is secured.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the optical connection module according to the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing an optical termination unit accommodating a plurality of optical branching modules as one embodiment of the optical connection module according to the present invention. In FIG.
Has a frame 3 provided with a cable introduction unit 2 on an upper surface thereof. The cable introduction unit 2 is connected to a plurality of in-house optical cables 4 connected to a transmission device (not shown) and a subscriber side. The plurality of outside optical cables 5 are retained. A plurality of alignment elements 6 are stacked on the right end in the frame 3, and the alignment elements 6
A plurality of inside optical cords 7 extending from the inside optical cable 4 are held in an aligned state. Here, each optical code extending from the inside optical cable 4 is optically distributed to a plurality of optical codes 7 by an optical splitter module (not shown).
These optical codes 7 are held by the alignment element 6.

On the left side of the frame 3, a plurality of stages (here, four stages) for accommodating the plurality of optical branching modules 8 are provided.
A module storage frame 9 having a structure is provided. And
Each stage of the module storage frame 9 has a plurality (for example, 63)
Of the optical branching modules 8 are housed side by side. As shown in FIG. 2, the optical branching module 8 is inserted into the module storage frame 9 from the rear side (the X direction side in the drawing) of the optical termination 1. Then, a plastic fixing claw member 10 provided on the front surface of the optical branching module 8 is connected to the locking portion 8 a of the module storage frame 8.

The optical branching module 8 connects the outside optical cord 11 extending from the outside optical cable 5 to the office inside optical cord 7 through the connecting optical cord 12, and connects the connecting optical cord 12 and the test light. This is for branch connection with the code 13. The test optical cord 13 is connected to a fiber selector (optical switch) 14 disposed above the optical branching module 8.
Reference numeral 4 is connected to an optical pulse test device 15 arranged below the module storage frame 9. Here, the office inside optical cord 7 is a single-core cord, and for example, 16 office inside optical cords 7 are connected to the connection optical cord 12. The outside optical cord 11 is, for example, an eight-core ribbon, and the test optical cord 13 is, for example, a 16-core ribbon or two eight-core ribbons.

The optical branching module 8 has a module main body 16 in which an optical component, a connecting optical cord 12 and a test optical cord 13 are housed. This module body 1
An optical connector adapter (16-unit MU simple receptacle) 17 connected to the connection optical cord 12 in the module main body 16 is attached above the fixing claw member 10 on the front surface of the optical connector adapter 6. The office inside optical cord 7 is connected. A wiring tray 18 is provided on the front side of each step of the module storage frame 9, and a plurality of office-side optical cords 7 are placed on the wiring tray 18 in a state of being bundled by a collective pressing member 19. . Also,
The connection optical cord 12 and the outside optical cord 11 have an 8-core MT.
The test optical cord 13 and the fiber selector are connected by a 16-core MT optical connector 21.

Each cap part 1 of the optical connector adapter 17
A terminal number is printed on 7a, and a marker 22 for terminal number identification is printed on each side of each side (see FIG. 3). Thereby, even if the office optical cord 7 is connected to the optical connector adapter 17, the terminal number can be easily recognized and identified.

A movable plate 23 having a handle 23a and capable of being pushed and pulled in the front-rear direction is provided above the optical connector adapter 17 on the front surface of the module main body 16. A sticker 24 with a two-dimensional bar code for managing equipment information (article code, manufacturer, year of manufacture, serial number, etc.) is attached (see FIG. 3). Thus, even when the office optical cable 7 is connected to the optical connector adapter 17, the movable plate 23 is pulled out to the near side (see the two-dot chain line in FIG. 2), so that the seal 24 is formed by the bar code reader.
It is possible to reliably read the barcode printed on the. Therefore, it is possible to confirm the equipment information without touching the plurality of office inside optical cords 7 connected to the optical connector adapter 17. A bar code seal 26 for facility information management is also attached to the tip end surface of a projection 25 provided at the upper end of the rear surface of the module body 16 (see FIG. 6). Thereby, the equipment information can be confirmed not only on the front side but also on the rear side of the optical termination 1.

FIG. 4 shows the internal configuration of the optical branching module 8. In the drawing, the inside of the module main body 16 of the optical branching module 8 generally includes an optical component storage section 27, a connection optical code storage section 28, and a station outside optical code storage section 29.

The optical component storage section 27 stores an optical coupler section 30 connected to two sets of connection tape cores (connection optical cords) 12. Two sets of test couplers are provided from the optical coupler section 30. The tape cord (test optical cord) 13 is branched.
Each of the two sets of connection tape cores 12 is divided into single-core optical cords 12 a at a single-core branching section 31.
2a is connected to the optical connector adapter 17. In the optical component storage section 27, a plurality of guide members including R guides 32a and 32b and a plurality of holding members 33 having slits for entering and exiting the cord are accommodated. Beware tape core wire 13 is R guide 3
It is routed along 2a, 32b and the like and is held by the holding member 33. The R guides 32a, 32
b), the minimum bending radius (30 mm) of the connecting tape 12 and the testing tape 13
Is configured to maintain.

On the rear surface side of the optical component storage section 27, a connection optical code storage section 28 is disposed. The connection optical cord storage portion 28 is provided on the side surface 1 of the module body 16.
6a (see FIG. 2), a partition plate 34 arranged in parallel to
The partition plate 34 forms a front side (the front side in FIG. 4) extra length storage area and a back side extra length storage area. Then, in each extra length storage area, the extra connection length of the connection tape core wire 12 held by the optical component storage portion 28 is stored one by one.

Each of the front side excess length storage area and the back side excess length storage area is provided with an inner bending radius regulating member 35 composed of R guides 35a and 35b. An outer bending radius regulating member 36 having four R guides 36a is arranged. The R guides 35a and 35b and the R guide 36a have curved surfaces that restrict the bending radius of the connecting tape 12 to a minimum bending radius (30 mm) or more. Then, in the area between the inner bending radius regulating member 35 and the outer bending radius regulating member 36, the extra connection length of the connecting tape core wire 12 is wound and stored.

Below the outer bending radius regulating member 36 in the front side excess length storage area, a cord introduction port 37 for introducing two connecting tape core wires 12 from the optical component storage section 27 is provided. A guide groove 38 is formed on the front side of the partition plate 34 so as to be continuous with the cord introduction port 37. The guide groove 38 has a curved shape so as to ensure the minimum radius of curvature of the connecting tape core wire 12, and the cord introduction port 37.
Extends toward the inner bending radius regulating member 35 from the center.
A guide hole 39 is formed between the R guides 35a and 35b of the inner bending radius regulating member 35 of the partition plate 34 so as to be continuous with the guide groove 38. This guide hole 39
In order to easily guide the connection tape core wire 12 inserted into the guide groove 38 to the rear-side extra length storage area,
It extends in a curved shape along the R guides 35a and 35b.

In addition, a code outlet 40 is provided in the upper part of the rear surface of the module main body 16 to allow the extra connection length of the connection tape core wire 12 stored in the connection optical code storage section 28 to be drawn out of the module main body 16. Is provided. The height position of the cord outlet 40 substantially matches the upper end position of the R guide 35b of the inner bending radius regulating member 35.
As a result, the connection tape core wire 12 wound along the R guide 35b can be smoothly inserted and removed from the cord outlet 40. Further, the shape of the cord outlet 40 is a shape corresponding to the cross-sectional shape of the connecting tape core wire 12. Thereby, the connecting tape core wire 12 can be pulled out from the module main body 16 without being twisted.

When the connecting tape core 12 is stored in the connecting optical cord storing section 28, the optical component storing section 27 is required.
The two connection tape core wires 12 retained by the above are collectively inserted into the guide groove 38 through the fiber inlet 37. Then, one of the two connection tape core wires 12 is brought to the backside excess length storage area through the guide hole 39.
Thus, the two connection tape core wires 12 can be easily distributed to the respective extra length storage areas.

After the connecting tape 12 is wound a plurality of times along the inner bending radius regulating member 35 in each extra length storage area, the distal end of the connecting tape 12 is connected to the module outlet 40 through the module outlet 40. Take it out of the main body 16.
At this time, the number of windings of the connection tape core 12 is adjusted, and the connection tape core 12 is wound in a slack state as shown in FIG.
Reference numeral 2 denotes a state in which each of the extra length storage areas is held so as to be freely inserted in the longitudinal direction so as not to be twisted. As a result, FIG.
As shown in (b), the connecting tape core 12 can be pulled out from the module main body 16 by a predetermined length.
That is, the connection tape core wire 12 can be pushed into and pulled out of the connection optical cord storage portion 28 in the module body 16. At this time, the minimum radius of curvature of the connection tape 12 is always ensured irrespective of whether the connection tape 12 is pushed or pulled, so that the optical properties of the connection tape 12 are not deteriorated and sufficient. Extra connection length can be taken.

Referring back to FIG. 4, an optical code storage section 29 outside the office is provided below the optical code storage section 28 for connection. The optical code storage section 29 outside the office also has a partition plate 41 parallel to the side surface 16a of the module body 16, and the partition plate 41 allows the front side (the paper surface front side in FIG. 4).
A storage area and a back side storage area are formed, and in each of the storage areas, the extra connection length of the outer-side tape core wire 11 is stored one by one. In addition, the office outside optical cord storage section 29 has an opening 42 (see FIG. 6) that opens to the rear side in each extra length storage area.
At the front end of each extra storage area,
An R guide 43 is formed to secure the minimum bending radius of the outer-side tape core wire 11.

As described above, since the station outside optical cord storage section 29 is provided in the module main body 16, it is not necessary to attach a member such as an extra storage box to each stage of the frame 3. Therefore, unlike the case where the extra connection lengths of the plurality of out-of-station tape cores 11 are collectively stored in an extra-length storage box or the like, problems such as that the out-of-office tape cores 11 are entangled are eliminated. In this case, not only the structure of the frame 3 is simplified, but also the frame 3
If the size of the frame 3 can be reduced or the size of the frame 3 is not changed, more light branching modules 8 can be stored.

On the rear surface of the module body 16, two sets of connector holding members 44 are provided. The connector holding member 44 holds the optical connector 20a attached to the distal end of the office-side tape core 11 and the optical connector 20b attached to the distal end of the connection tape core in a connected state. The two sets of connector holding members 44 are shown in FIG.
As shown in FIG. 6, the heights of the connection optical cord storage sections 28 are shifted from each other at portions corresponding to the front side excess length storage area and the back side excess length storage area.

Each connector holding member 44 has a main body frame 45 fixed to the rear surface of the module main body 16. A U-shaped upper hook 46 for holding the connection tape 12 is attached to the upper end of the main body frame 45, and the connected optical connector 20a is held at the lower end of the main body frame 45. L-shaped lower hook part 47
Is attached. The lower hook portion 47 has a cutout 47a in the center portion for passing the outside-station tape core 11 and a claw portion 47b projecting upward. Then, a region R between the main body frame 45 and the claw portion 47b
The optical connector 20a is accommodated and held in (see FIG. 7). At this time, the optical connectors 20a and 20b are
The movement in the front-rear direction is regulated by b.

The upper end of the rear surface of the module body 16 has a curved surface 48, on which a guide groove 48a extending in a curved shape in the vertical direction is formed. Then, the two test tape core wires 13 held by the optical component storage portion 27 are guided to the guide groove 48a through the upper portion of the connection optical cord storage portion 28. The two test tape cores 13 inserted into the guide grooves 48 a are pressed by the pressing members 49 at the lower ends of the curved surfaces 48. As a result, the test tape core wire 13 is guided downward with the minimum bending radius secured, and is routed at a position lower than the height position of the fiber selector 14 with the minimum bending radius secured. Thus, it is possible to connect to the fiber selector 14. The two connection tape cores 12 are configured to pass through both sides of the guide groove 48 a in the curved surface 48, and do not interfere with the test tape cores 13.

In the optical branching module 8 as described above, the connecting tape core wire 12 is taken out of the module main body 16 and connected to the station outside tape core wire 11.
The extra connection length of the connecting tape core wire 12 is housed in the module main body 16 so as to be able to be pushed in and pulled out, so that the extra drawing length of the connection tape core wire 12 becomes unnecessary. For this reason,
The dimension of the optical cord storage section for connection 28 can be reduced accordingly. In this case, it is possible to reduce the size of the entire optical branching module 8 and increase the space for the optical code storage section 29 outside the office.

The optical branch module 8 configured as described above
In the optical termination 1 in which the optical branching module 8 is accommodated,
When connecting the connecting tape core 12 extending from the optical fiber termination 11 to the outside tape core 11, the connecting tape 12 is first pulled out of the optical branching module 8 on the rear side of the optical termination 1. . At this time, in the connection optical cord storage section 28, as shown in FIG.
2. The slack of the extra connection length is eliminated, and the connection tape
2 follows the inner bending radius regulating member 35. Thereby, a desired drawing length can be obtained while securing the minimum bending radius of the connecting tape core wire 12.

Subsequently, the optical connector 20a at the distal end of the outside office tape core 11 and the optical connector 20b at the distal end of the connecting tape core 12 are connected, and the optical connectors 20a and 20b are connected to each other by a fixing clip 50 (see FIG. 7). Is fixed. In addition,
The fixing clip 50 may be sandwiched from the connector holding member 44 side, or the connector holding member 44 as shown in FIG.
May be sandwiched from the opposite side. Then, the connection tape core wire 12 is connected to the upper hook portion 4 of the connector holding member 44 from the side.
6, and then insert the outer tape ribbon 11 into the notch 47 a of the lower hook portion 47, and connect the optical connector 20 in the region R between the main body frame 45 and the claw portion 47 b.
a, 20b. At this time, the optical connector 20
The optical connectors 20a and 20b are restrained in the front-rear direction by the claw portions 47b of the lower hook portion 47.
b is securely held (see FIG. 7A).

Further, such a connector holding member 44
Are provided on the rear surface of the module body 16 at different height positions, so that even if the dimension of the module body 16 in the thickness direction is somewhat small, the adjacent optical connectors 20a, 20a
There is little possibility of touching the optical connector b or the optical connector of the adjacent optical branching module 8. Accordingly, it is possible to prevent the transmission signal of another live line from being affected.

When the optical connectors 20a and 20b are pulled out of the region R between the main frame 45 and the claw portion 47b, as shown in FIG.
By lifting b slightly above the claw portion 47 and displacing it sideways, it can be easily removed.

Thereafter, the extra connection length of the outside office optical fiber ribbon 11 is pushed into the outside office optical cord housing 29 in the module body 16 through the opening 42 on the rear surface of the module body 16. At this time, the extra connection length of the outside office tape core 11 is determined in a state where the minimum bending radius is secured by the R guide 43 provided in the outside office optical cord storage unit 29 and the bending rigidity of the outside office tape core 11. Is stored.

Subsequently, the extra connection length of the connection tape core wire 12 is pushed into the connection optical cord storage section 28 in the module body 16. As a result, as shown in FIG.
5 sag in the area between 5 and the outer bending radius regulating member 36,
It will be stored with the minimum bending radius secured.

As described above, according to the present embodiment, while the optical branching module 8 is housed in the module housing frame 9 of the optical termination 1, the connection tape core 12 and the office-side tape core 1 are kept.
1 can be connected. Therefore, the number of steps can be greatly reduced as compared with the related art, and workability at the time of connection is improved.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the optical connection module according to the present invention has been described as an optical connection module that can cope with an optical communication network that requires an optical line test function. The present invention is not limited to this, and can be applied to those used in an optical communication network that does not require an optical test function.

[0044]

According to the present invention, a connector holding member for detachably holding an optical connector for connecting a connection optical cord and an outside optical fiber is provided on one end surface of the module main body, and the inside of the module main body is provided. With the connection optical cord storage section secured with the minimum bending radius of the connection optical cord,
The extra connection length of the connection optical cord can be pushed in and pulled out, so that the optical connection module can be stored in the optical termination while the connection work between the outside office optical cord and the connection optical cord is performed. It can be carried out. Thereby, workability when connecting the connection optical cord and the office outside optical cord is improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an optical termination that houses a plurality of optical branching modules, which is one embodiment of an optical connection module according to the present invention.

FIG. 2 is a side view showing a state where the optical branching module shown in FIG. 1 is housed in a module housing frame of a frame.

FIG. 3 is a diagram showing an upper front part of the module main body shown in FIG. 2;

FIG. 4 is a diagram showing an internal configuration of the optical branch module shown in FIG.

FIG. 5 shows a state where the extra connection length of the connection optical cord shown in FIG. 4 is stored in the connection optical cord storage section and a state where the extra connection length of the connection optical cord is pulled out from the connection optical cord storage section. FIG.

FIG. 6 is a view showing a rear surface of the module main body shown in FIG. 2;

7 is a diagram showing a state where the optical connector shown in FIG. 2 is held by the connector holding member and a state where the optical connector is detached from the connector holding member.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Optical termination, 7 ... Inside optical cord, 8 ... Optical branching module (optical connection module), 11 ... Outside optical cord (outside tape core), 12 ... Connection optical cord (connection tape core) ), 13: Test optical cord (test tape core), 16: Module body, 16a: Side surface, 20, 2
0a, 20b: optical connector, 27: optical component storage, 28
… Connection optical cord storage unit, 29… off-site optical cord storage unit
Reference numeral 30 denotes an optical coupler portion, 34 denotes a partition plate, 35 denotes an inside bending radius regulating member (first bending radius regulating member), 36 denotes an outside bending radius regulating member (second bending radius regulating member), and 38 denotes a guide groove. 39: guide hole, 44: connector holding member, 46
... Upper hook portion (first hook portion), 47... Lower hook portion (second hook portion), 48a guide groove, 49 holding member.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhito Saito 1 Tayacho, Sakae-ku, Yokohama-shi, Kanagawa Prefecture Sumitomo Electric Industries, Ltd. Yokohama Works (72) Inventor Takashi Murakami 1-Tagamachi, Sakae-ku, Yokohama-shi, Kanagawa Sumitomo Denki Kogyo Co., Ltd.Yokohama Works (72) Inventor Tsuneji Mine 2-3-1 Otemachi, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Keitaka Enomoto 2-chome Otemachi, Chiyoda-ku, Tokyo No.3-1 Within Nippon Telegraph and Telephone Corporation (72) Inventor Fumi Izumida 2-3-1 Otemachi, Chiyoda-ku, Tokyo F-term within Nippon Telegraph and Telephone Corporation (reference) 2H036 RA11 RA25 2H038 CA37 CA38

Claims (8)

[Claims] 1. An optical connection module that is housed in an optical termination and connects an office optical code and an office optical code, wherein an extra connection length of a connection optical cord connected to the office optical code is housed. A module main body having a connection optical cord storage section to be connected therein, and connecting the connection optical cord provided on one end surface of the module main body and led out from the connection optical cord storage section to the station outside optical fiber. A connector holding member for detachably holding the optical connector, wherein the connection optical cord storage section secures a minimum bending radius of the connection optical cord, and increases a connection extra length of the connection optical cord. An optical connection module, wherein the optical connection module is configured to be housed so that it can be pushed in and out. 2. The connection optical cord storage section includes a first bending radius regulating member that regulates a bending radius of the connection optical cord to be equal to or greater than the minimum bending radius, and a periphery of the first bending radius regulating member. A second bending radius regulating member for regulating a bending radius of the connection optical cord to be equal to or greater than the minimum bending radius, wherein the first bending radius regulating member and the second
The optical connection module according to claim 1, wherein the connection length of the connection optical cord is wound around and accommodated in a region between the optical connection module and the bending radius regulating member. 3. The optical connection module according to claim 1, wherein the module main body has a station outside optical code storage section for storing a connection extra length of the station outside optical code therein. 4. A partition plate, wherein the connection optical cord storage portion is disposed in parallel with a side surface of the module main body, and forms two extra length storage areas for storing extra connection lengths of the connection optical cord. And a guide groove formed on one surface of the partition plate for guiding the optical cord for connection, and the partition plate is formed on the partition plate so as to be continuous with the guide groove, and the optical code for connection is connected to the partition plate. And a guide hole for guiding the connector holding member to the other surface side. The connector holding member has two sets, and these connector holding members are located on one end surface of the module body and correspond to the respective extra length storage areas. The optical connection module according to any one of claims 1 to 3, wherein the optical connection module is provided in an optical communication module. 5. The connector set according to claim 4, wherein the two sets of connector holding members are provided at different height positions.
The optical connection module according to the above. 6. The connector holding member is provided with a first hook for holding the connection optical cord and below the first hook, so as to restrain the optical connector in the front-rear direction. The optical connection module according to any one of claims 1 to 5, further comprising a second hook portion that holds the optical connection module. 7. The module main body has therein an optical component storage unit for storing an optical component including an optical coupler unit connected to the connection optical cord, and the test optical code is stored in the optical coupler unit. The optical connection module according to any one of claims 1 to 6, wherein the optical connection module is branched and connected. 8. A guide groove for guiding the test optical cord downward so as to secure a minimum bending radius of the test optical cord, above the connector holding member on one end surface of the module main body; 8. The optical connection module according to claim 7, further comprising a holding member for holding the test optical cord inserted into the guide groove.