JPH08152529A - Optical wiring rack - Google Patents

Abstract

PURPOSE: To improve the operability of the storage and replacement of a branch module by supporting thin plate type packages, which contain branch modules and optical connectors, on a frame side by side and arranging them on the frame in plural stages. CONSTITUTION: A thin plate type package 15 has a branch module 12, a branch unit 13, an optical connector 14, etc., in a thin plate type package body 16. For operation for inserting the thin plate package 15 up to the front surface side of the frame 11, the positioning rail 16m of the thin plate type package body 16 is fitted in a guide 11m and an engagement plate 161 is engaged with a support plate 111 at the same time, so that the package is positioned vertically. Further, the short side 16d of the thin plate type package body 16 is moved horizontally into the frame 11 while slid on the upper end of the support member 11f, and positioned horizontally by making the end surface on the front surface side of the thin plate type package 15 except the part of a collector 14 abut on a terminal panel 11b or making a fixed knob 16k abut on a stopper 11k.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical wiring rack for branching an optical cable to an optical fiber core by an optical connector connection in an optical fiber network.

[0002]

2. Description of the Related Art In an optical fiber network, in order to branch and connect an optical cable to an optical fiber core by connecting an optical connector, an optical wiring rack is used which terminates a large number of internal and external optical fibers to form a large group. Particularly, as an optical wiring rack used for a subscriber transmission line, an FTM (Fiber T
termination module) is used.
7 and 8 are views showing a conventional FTM, in which reference numeral 1 is an FTM body, 2 is a terminal plate, 3 is an optical connector, and 4 is an optical connector.
Is a branch module.

The FTM main body 1 is formed in a shelf shape partitioned by a horizontally arranged partition plate 5 into a plurality of stages at equal intervals, and a plurality of stages for accommodating the branch modules 4 are formed. . A terminal plate 2 that substantially covers the opening is fixed to the opening on the same side of each stage of the FTM body 1. A plurality of holes 6 for mounting the optical connectors 3 are arranged side by side on the terminal plate 2, and two SC type optical connectors 3 are arranged and fixed in the holes 6. In this optical connector 3, a plurality of terminals (not shown) to which the intra-office optical fiber core wire 7 is connected are arranged on the outer side, and a plurality of terminals (not shown) to which the non-office optical fiber core wire is connected are provided on the inside. It is arranged at a position corresponding to the terminal for 7.
The branch module 4 is a plate-shaped package, is connected to an outside station optical cable (not shown), and leads out a tape-shaped tape cord 8 composed of a plurality of optical fibers forming the outside station optical cable. . In the tape cord 8, each optical fiber core wire constituting the tape cord 8 is branched into a single core in a branching device 9 provided in the vicinity of a constituent member located on the terminal plate 2 side of the FTM body 1. Furthermore, the tip of each optical fiber core wire is connected to a terminal in the optical connector 3, respectively.

The branching device 9 and the optical connector 3 dedicated to each branching module 4 are connected. The number of branch modules 4 is twice that of the holes 2, and the branch modules 4 are housed in a row in each stage.

[0005]

By the way, in the case of the above-mentioned optical wiring rack, it is difficult to manufacture because the number of parts is huge, and in addition, in view of space saving, the space is not enough for each stage. Since it is not secured, each optical fiber must be connected to the optical connector 3 located at the deepest part in a narrow space, and the workability of attaching the branch module 4 was unsatisfactory. Further, the tape cord 8 is obtained by temporarily fixing the branching device 9 at a predetermined position with a temporary fastener 10 and then curving the extra length into a shape of 8 to be housed in each step.
However, it is difficult to fix the branching device 9 and it is difficult to maintain the curved shape of the tape cord 8 when the branching module 4 is stored in the appropriate position of the step. As a result, the number of work rework increases, which causes a decrease in work efficiency.

When the branch module 4 once connected to the optical connector 3 is to be replaced, a jig is used to remove the optical plug from the optical connector 3, but the jig is operated in a narrow space. Therefore, it is difficult to operate, and in addition, a large number of branch modules 4 need to be pulled out from the FTM body 1 in order to form a space for inserting and operating a jig, which is very troublesome. was there.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an optical wiring rack in which the workability of storing and replacing a branch module is improved.

[0008]

According to a first aspect of the present invention, there is provided an optical wiring rack for branching and connecting an optical cable to an optical fiber core wire by optical connector connection, wherein a plurality of the optical connectors are arranged. A plurality of branching modules are arranged in a shelf-shaped frame, and a tape cord led out from the optical cable is connected to the optical connector from the inside of the frame via the inside of the branching module and is connected to the optical connector. In an optical wiring rack to which an optical fiber core wire is connected from the outside of a frame, a thin plate in which at least the branch module, a fan-out portion and an extra length portion of the tape cord, a branch fixing portion, and the optical connector are housed inside. -Shaped packages are supported side by side on the frame, and are arranged in multiple stages on the frame, and when the frames are supported by the frame, Said optical connector is projected on the end of the thin plate package facing outwardly over arm was solutions of the problems.

According to a second aspect of the present invention, there is provided the optical wiring stand according to the first aspect, wherein a supporting direction of the thin plate-shaped package with respect to the frame and a connecting direction of the optical fiber core wire to the optical connector are aligned. This is the means for solving the above problems.

According to a third aspect of the present invention, there is provided an optical wiring rack according to the first or second aspect, in which an opening is formed in one side of the thin plate package so that the branch module can be taken in and out of the thin plate package. The provision of the section is the means for solving the above-mentioned problems.

[0011]

According to the optical wiring rack of the first aspect, the branch module and the optical connector are integrally put in and out of the frame while being housed and arranged in the thin plate package. At the stage of forming the thin plate package, the work of connecting the optical connector and the tape cord can be efficiently performed. Further, when the thin plate package is supported by the frame, the optical connector is supported so as to project to the outside of the frame, and the optical fiber core wire can be connected to the optical connector from the outside of the frame.

According to the optical wiring rack of the second aspect, the thin plate package is supported by the frame, and at the same time, the optical connector is located at a position connectable to the optical fiber core wire from the outside of the frame.

According to the optical wiring rack of the third aspect, in the state where the thin plate-shaped package is supported by the frame, the device inside the thin plate-shaped package is taken in and out of the thin plate-shaped package without moving the thin plate-shaped package. .

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The optical wiring rack of this embodiment includes a branching module 12 and a branching device 13 as a branching and fixing part of an optical fiber.
And a plurality of thin plate-shaped packages 15 in which the SC type optical connectors 14 are housed are arranged in a shelf-shaped frame 11 having a plurality of steps.

The frame 11 has the same structure as the FTM body 1 shown in FIGS. 7 and 8. As shown in FIG. 3, each stage forming the frame 11 has a partition plate 11 that is horizontally arranged and vertically partitions each stage of the frame 11.
a and a terminal panel 11b that closes the front side (right side in FIG. 3) in the thickness direction of the frame 11 in each stage, and the rear side (left side in FIG. 3) of the frame 11 has an opening for inserting and removing the package 15. Is made.

As shown in FIG. 1 and FIG. 2, the partition plate 11a is formed by bending a bottom portion 11c which is horizontal when placed on the frame 11 and a rear end portion thereof by about 30 degrees. And an inclined portion 11e. The inclined portion 11
e is bent to the upper side of the partition plate 11a. Partition plate 1
The entire 1a is formed in a tray shape capable of supporting the thin plate package 15. As shown in FIG. 1, in the central portion of the partition plate 11a, the thin plate package 15 housed in the frame 11 is located above the bottom portion 11c of the partition plate 11a by a predetermined distance and located above the thin plate package. A support member 11f that supports the bottom of 15 is provided upright.

The terminal panel 11b is a rectangular plate body formed to substantially cover the upper half of the front side opening of each step of the frame 11, all of which are located on the same plane. There is. The terminal panel 11b has optical connector holes 11g, 11g ... Into which the optical connector 14 is fitted when the thin plate package 15 is inserted into the step of the frame 11 and protrudes to the front side (right side in FIGS. 1 and 2). Many are arranged in the length direction. This optical connector hole 11g, 11g
The pitch of ... Is matched with the thickness dimension of the thin plate package 15 housed in the frame 11.

At each stage of the frame 11, rod-like positioning bases 11h are arranged for sorting a large number of single-core intra-station optical fiber cores F standing up from below and connected to the optical connector 14 in an aligned state. The terminal panel 11b is located substantially directly below each of the optical connector holes 11g, 11g, ... On the outside of the tip of this positioning base 11h, the intra-office optical fiber F
Two plate-shaped rubber members 11i as temporary fasteners for temporarily retaining the are arranged as a set. The plate-shaped rubber member 11i is
As shown in FIG. 6, it is a rubber plate in which a plurality of slits 11s are cut, and the intra-station optical fiber core wire F is sandwiched by the widened portion 11t provided on the back side of the slits 11s so as to be sandwiched stably. It is composed. The intra-station optical fiber core wire F has a cord diameter of 2.0 mm and is supported by the plate-shaped rubber member 11i so as not to be entangled with each other. In each step on the front surface of the frame 11, below the positioning table 11h, the intra-office optical fiber core wire F,
A tray-shaped guide member 11j that guides F ... from the internal device to the vicinity of each positioning base 11h (see FIGS. 1, 3, and 4).
Is arranged. The guide member 11j extends over the entire width direction of the frame 11 along the partition plate 11a.

As shown in FIGS. 1 and 2, the thin plate-shaped package 15 includes the branch module 12 and the branching device 13 by a thin plate-shaped package body 16 formed by bending a thin plate material such as resin into a rectangular tube shape. And an optical connector 14 and the like.

The branch module 12 is a casing having a flat plate shape when viewed from the outside, and an optical circuit is constituted by optical components such as a filter, a coupler, and an optical connector (not shown).
A tape cord 18 led out from the outside optical cable 17 is connected to these optical circuits, and an engaging member fixed to one side of the rail 19 provided on the upper side of the thin plate package body 16. By engaging 20 with each other, the thin package body 16 is arranged in a suspended state at a predetermined position.

As shown in FIG. 1, the branching device 13 includes a clip 2 fixed in the thin plate package body 16.
The tape cord 18 led out from the branch module 12 is connected to the main body 16 of the thin plate package via the connector 1. At the tip of the tape cord 18 connected to the branching unit 13, the fan-out section 1 is pitch-converted and branched into single-core external optical fiber core wires 22, 22 ...
8a is provided. The tip of each outside optical fiber core wire 22 is inserted and fixed to the optical connector 14 via an optical plug 23. It is also possible to directly convert the branch module 12 into the single-core optical fiber core wire 22 without providing the branch device 13.

The optical connector 14 comprises two optical adapters 24, 2 arranged and fixed in series along the outer end of the front end (right side in FIG. 1) of the thin plate package body 16.
It is composed of four. External optical fiber core wires 22, 22 ... Are connected to the outside of the optical adapters 24, 24 (left side in FIG. 1) by optical plugs 23, 23. Inside the office of the optical adapters 24, 24, an intra-office optical fiber core wire F,
F ... can be connected by optical plugs 26, 26 ... In the optical adapters 24, 24, the optical plugs 26, 26 ... Of the internal optical fiber cores F, F ... Are connected to the positions where the external optical fiber cores 22, 22. . The connection direction of the intra-station optical fiber cores F, F ... Connected to the intra-station device to the optical adapter 24 is the same as the insertion direction of the thin plate package 15 into the frame 11.

In each of the optical adapters 24, the external fiber 22 is provided on the end face inside the thin plate package body 16.
, Which are not shown, for connecting the optical plugs 23, 23 ... For use in the local optical fiber F are arranged in series on the outer end surface of the thin plate-shaped package body 16.
Are arranged in series. The illustrated optical adapter 24 is formed so that four optical plugs 23 and 26 can be connected outside the station and four inside the station. Therefore, in the optical connector 14, a total of eight optical plugs 2 are provided.
3, 26 can be connected. The outside of the station and the inside of the station are arranged on the same straight line. Optical adapter holding plates 28, 28 for fixing the optical connector 14 to the thin plate-shaped package body 16 are attached to both sides of the optical adapters 24, 24. The optical adapter holding plates 28, 28 are screwed to the thin plate-shaped package body 16 to stably hold the arrayed state of the optical adapters 24, 24. The optical plug 23 and the optical plug 26 are of the same standard, but may be a combination of different standards. In this case, the optical adapter 24 is configured to change the signal between the optical plug 23 and the optical plug 26 so that the signal can be transmitted.

As shown in FIGS. 1 and 2, the thin-plate package body 16 is connected in a state where side plates 16a, 16a formed in a trapezoidal shape in a side view are positioned so that their surfaces are parallel to each other. Is formed, and the whole is also formed into a substantially trapezoidal flat plate shape. At the end of each side plate 16a, 16a, a flange 16b for coupling with the side plate 16a on the other side is formed.
Are projected at multiple locations. Side plates 1 connected to each other
The pair of 6a, 16a bends the flanges 16b, 16b of each other at a substantially right angle to the side plate 16a to be superposed, and in this state, the side plates 16a, 16a, the flanges 16b, 1b.
6b are connected to each other by fixing them with bolts 16c. The projecting dimension of the flange 16b from the side plate 16a is the thickness dimension of the thin plate package body 16.

The short side 16d of the thin plate package body 16
Is a bottom surface to be placed on the partition plate 11a when the thin plate package 15 is housed in the step of the frame 11. Further, in the vicinity of the short side 16d and its extension, the end located on the storage inner side (the right side in FIGS. 1 and 2) of the thin plate package body 16 is parallel to the short side 16d from the short side 16d. A cutout portion 16f having a shape cut out vertically is formed toward the long side 16e provided on the. The rail 19 is fixed to the inner surface side of the long side 16e. The ends of the thin plate-shaped package body 16 on the front side (left side in FIGS. 1 and 2) in the supporting direction are the short side 16d and the long side 1
An opening 16g is formed on the hypotenuse that connects 6e and 6e, and allows the branch module 12 to be taken in and out of the thin plate package body 16. The opening 16g is provided in the branch module 1 when the branch module 12 is stored at a predetermined position in the thin plate package body 16.
A part of 2 is formed to be exposed to the outside.

One of the side plates 16a, 16a constituting the thin plate-shaped package body 16 has a central portion, the short side 16d.
Rolling protrusion 1 around which the tape cord 18 is rolled around
6h is projected. By winding the tape cord 18 around the winding protrusion 16h while maintaining a curved diameter of a predetermined value or more, the extra length portion 18a of the tape cord 18 is sufficiently secured, and the tape cord 18 is provided inside the thin plate package body 16. It is designed to be stored.

At the rear end of the long side 16e of the thin plate-shaped package body 16, a small flange 16j perpendicular to the long side 16e is projected. The small flange 16j has a fixing knob 16k that engages with a stopper 11k protruding from the rear lower surface of the partition plate 11a of the frame 11 when the thin plate package 15 is pushed into the frame 11.
Are fixed and supported parallel to the axis of the thin plate package body 16. The fixed knob 16k is provided so as to project on the rear side of the small flange 16j, and also has a protrusion (not shown) on the front side of the small flange 16j, and when the thin plate package 15 is inserted into the frame 11, the protrusion is formed. Is detachably engaged with an engaging hole (not shown) of a stopper 11k fixed to the upper partition plate 11a. Further, the fixed knob 16k is exposed from the rear side of the frame 11 even after the thin plate package 15 is housed in the frame 11, and is used when the thin plate package 15 is pulled out from the frame 11.

At the center of the long side 16e, when the thin plate-shaped package body 16 is inserted into the frame 11, the support plate 11 fixed to the lower surface of the inserted partition plate 11a on the upper stage side.
An engagement plate 16l that engages with 1 is fixed. As shown in FIG. 5, both the support plate 11l and the engagement plate 16l are plate materials having an L-shaped cross section, and when the thin plate-shaped package body 16 is inserted into the frame 11, the engagement plate 16l is the same as the support plate 11l. The engagement state is reached while sliding from the rear side toward the front side. In addition, the support plate 11
When 1 and the engaging plate 16l are engaged with each other, the thin plate-shaped package body 16 is suspended below the partition plate 11a via the supporting plate 11l and the engaging plate 16l.

As shown in FIG. 1, when the frame 11 is inserted into the thin plate-shaped package body 16 on the front side end of the long side 16e and on the lower surface side of the thin plate-shaped package body 16 facing the front side end. Positioning by which the thin plate-shaped package body 16 is positioned in the width direction of the frame 11 by fitting with guides 11m that are horizontally fixed to the lower surface of the partition plate 11a on the front side and the rear surface of the terminal panel 11b, respectively. The rail 16m is fixed.

The thin plate-shaped package body 16 can be made of a material other than resin as long as it is a lightweight and easily manufactured material.

The connection of the optical fiber core wires inside and outside the station using the above optical wiring rack will be described below by taking the case where the outside optical cable 17 has eight cores as an example. First, the thin plate package 15
To produce. The thin plate package 15 is manufactured by selecting the branch module 12, the branching device 13, and the optical connector 14 for eight cores, respectively, and storing them in the thin plate package body 16. An eight-core tape cord 18 branched from the outside optical cable 17 is connected to the optical circuit of the branch module 12, and a sufficient length of the tape cord 18 is also drawn from the branch module 12 to the optical connector 14 mounting side. Keep it. The optical connector 14 is composed of two four-core optical adapters 24, 24 and fixed by an optical adapter pressing plate 28, and the optical adapters 24, 24 are sandwiched between the optical adapter pressing plates 28, 28. The optical adapter pressing plates 28, 28 are screwed to the thin plate package body 16.

The branching device 1 is placed at an appropriate position on the way from the branching module 12 of the tape cord 18 to the optical connector 14.
3 is attached, and the end of the branching device 13 is branched into a single-core optical fiber optical fiber 22 to form a fan-out portion 18a.
The optical plug 23 is fixed to the tip of the terminal to terminate. Next, the branch module 12, the branching device 13, and the optical connector 14 are mounted at predetermined positions on the half body of the thin plate-shaped package body 16 on the side having the winding protrusion 16h, and the extra length portion 18b of the tape cord 18 is attached. By using the winding protrusion 16h, a sufficient radius of curvature is secured, and the curving protrusion 16h is gently curved for storage. Next, after the optical plug 23 is fitted to the optical connector 14 and the branching device 13 is fixed by the clip 21, the thin plate-shaped package main body 16 is mounted and fixed on the opposite side to the half, and the thin plate-shaped package 15 is attached. To complete.

Next, the thin plate package 15 is attached to the frame 1.
1 is inserted into each step from the outside of the station (the side opposite to the terminal panel 11b). At this time, the optical connector 14 is connected to the terminal panel 11
11g optical connector hole by inserting it in 11g optical connector hole
From the outside. The operation of inserting the thin plate-shaped package 15 to the front side of the frame 11 is performed by fitting the positioning rail 16m of the thin plate-shaped package body 16 with the guide 11m, and at the same time engaging the engaging plate 16l with the supporting plate 11l. Positioning is performed, and the short side 16d of the thin plate package body 16 is slid on the upper end of the support member 11f and horizontally moved to the inner side of the frame 11,
The front end surface of the thin plate package 15 excluding the optical connector 14 is brought into contact with the terminal panel 11b, or the fixing knob 16k is brought into contact with the stopper 11k for horizontal positioning. Next, the in-station optical fiber cores F, F ... Positioned in the vicinity of the optical connector hole 11g via the positioning base 11h in advance are inserted into the optical connector hole 11g.
It is connected to the inside of the office of the optical connector 14 which is projected from.

According to the optical wiring rack, the optical connector 14 can be positioned only by inserting the thin plate-shaped package 15 into the frame 11, and the thin plate-shaped package 15 can be inserted into and removed from the frame 11 even after being housed in the frame 11. The branch module 12 and the branch device 1 are provided in the package body 16.
3. Since the optical connector 14 is housed, the connection between the optical connector 14 and the outside optical fiber core wire 22, the positioning of the branch module 12 and the branch device 13, and the tape cord 18
The storage of the extra length portion 18b and the like can be performed outside the frame 11, and the workability is improved.

Since the opening 16g for allowing the branching module 12 to be put in and taken out of the thin plate-shaped package body 16 is opened on the rear side of the thin plate-shaped package body 16, even after the thin plate-shaped package 15 is housed in the frame 11. The branch module 12 can be easily replaced and maintained simply by pulling it out from the package body 16.

Since one branch module 12 is connected to the eight-core optical connector 14, the number of branch modules 12 with respect to the number of optical fiber cores to be connected is half the number of the above-mentioned conventional ones. The labor of the work is significantly reduced, and the pitch between the branch modules 12, 12, ... Is expanded, and the workability of the connection is improved.

Since the connecting direction between the optical connector 14 and the intra-office optical fiber core wire F and the inserting direction of the thin plate-shaped package 15 into the frame 11 are the same, the optical connector when the thin plate-shaped package 15 is stored in the frame 11. The optical connector 14 can be surely and easily positioned by only inserting the optical fiber 14 into the optical connector hole 11g in one direction, and the work efficiency of the connection work between the external optical fiber core wire 22 and the internal optical fiber core wire F can be improved. improves.

Although the optical adapter for four cores is described in the present embodiment as the optical adapter, a multi-core adapter for eight cores may be used. A cord diameter of 2.0 is used for each of the single-core optical fiber cores inside and outside the station.
Although the one having a diameter of mm is used, the diameter of the cord may be about 1.5 mm. As the branch module, the one for 8 cores was used, but a module for more than 16 cores may be used, for example. Further, for example, when an optical adapter for 8 cores and a branch module for 16 fibers are used, an FTM corresponding to an optical cable having twice the number of cores as in the above example is configured by one optical wiring rack. be able to.

[0039]

As described above, according to the optical wiring rack of the first aspect, at least the branch module and the optical connector are collectively housed and supported in the package, and the package is supported by the frame. Since the connector protrudes from the frame surface so that the optical fiber can be connected, the work of connecting the optical connector and the optical fiber core wire is performed outside the frame, and the workability is improved. The positioning of the branch module and the optical connector and the storage of the extra length of the tape cord can be easily performed. Even after supporting the thin-plate package on the frame, the branch module and optical connector can be taken out of the frame simply by pulling out the thin-plate package from the frame, making it easy to replace and maintain the branch module and optical connector. Can be done.

According to the optical wiring rack of the second aspect, since the connecting direction of the optical cable and the optical fiber core wire is aligned with the direction when the thin plate package is supported by the frame, it is supported by the frame. At this time, the thin plate package can be reliably and easily positioned at the optical fiber connectable position simply by moving the optical connector in one direction, and the work efficiency of connecting the optical cable and the optical fiber core is improved.

According to the optical wiring rack of the third aspect, the thin plate package allows the branch module to be freely taken in and out of the thin plate package through the opening, so that the branch module and the optical module are supported even after the thin plate package is supported by the frame. The connector can be freely replaced and maintained.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of an optical wiring rack of the present invention.

FIG. 2 is a perspective view showing a supported state of a thin plate package in the optical wiring rack.

3 is an overall side sectional view of FIG.

FIG. 4 is a front view of FIG.

FIG. 5 is a front view showing a thin plate package in the optical wiring rack of the present invention.

FIG. 6 is an enlarged plan view showing a plate-shaped rubber member used in the optical wiring rack of the present invention.

FIG. 7 is a side sectional view showing a conventional optical wiring rack.

FIG. 8 is a front view of FIG. 7.

[Explanation of symbols]

11 ... Frame, 12 ... Branch module, 13 ... Branch device (branch fixing part), 14 ... Optical connector, 15 ... Thin-plate package, 17 ... External optical cable, 18 ... Tape cord,
18a ... Fan-out part, 18b ... Extra length part, 22 ... Optical fiber core wire, F ... Optical fiber core wire

Front page continuation (72) Inventor Hiroshi Yokosuka 1440 Rokuzaki, Sakura-shi, Chiba Fujikura Ltd. Sakura factory (72) Inventor Nobuo Tomita 1-6 Uchiyukicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Naoyuki Atobe 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (3)

[Claims] 1. An optical wiring rack for branching and connecting an optical cable to an optical fiber core wire by connecting an optical connector, wherein a plurality of branching modules are arranged in a shelf-shaped frame in which a plurality of the optical connectors are arranged. An optical wiring in which a tape cord derived from the optical cable is connected to the optical connector from the inside of the frame via the inside of the branch module, and an optical fiber core wire is connected to the optical connector from the outside of the frame. In a frame, a thin plate-shaped package containing at least the branch module, a fan-out portion and an extra length portion of the tape cord, a branch fixing portion, and the optical connector is laterally supported by the frame and the frame. The end portions of the thin plate-shaped package that are arranged in multiple stages and face the outside of the frame when supported by the frame. Optical wiring rack, characterized in that said optical connector is projected. 2. The optical wiring rack according to claim 1, wherein a supporting direction of the thin plate-shaped package with respect to the frame and a connecting direction of the optical fiber core wire to the optical connector are aligned with each other. . 3. The optical wiring rack according to claim 1 or 2, wherein an opening is provided at one side of the thin plate package to allow the branch module to be taken in and out of the thin plate package. A characteristic optical wiring rack.