JPH0619387U - Fiber optic cable distribution board - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate connector attachment / detachment and maintenance / inspection of connector connections. The extra length processing of the optical code is facilitated. [Structure] The connectors 104 and 105 attached to the ends of the optical cords 201 and 202 are detachably connected to the front and back sides via a connector connecting plate 102, and the extra length that is removable on the front side of the connector connecting plate 102. Processing bobbin 1
A connector connection unit 100 formed by winding the extra length 201 of the optical cord around 08 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention converts an external optical fiber cable and an internal optical fiber cable pulled into a cabinet into a large number of optical cords (jumper wires), respectively, and connects these optical cords through a connector. Regarding

[0002]

[Problems to be solved by conventional techniques and devices]

 Conventionally, various types of wiring boards of this type have been provided, and the line is switched by changing the connection of the connector attached to the tip of the optical cord. However, if the number of connectors that need to be reconnected increases with the number of lines and the frequency of connection and disconnection increases, the conventional wiring board does not have sufficient working space for connecting and disconnecting the connectors, resulting in poor workability. There was a problem of being bad. In addition, since sufficient measures have not been taken to deal with the extra length of the optical cord around the connector connection, the extra length is cluttered and scattered, which further improves workability during connector attachment / detachment and maintenance / inspection. It was bad.

The present invention has been made to solve the above problems, and an object of the present invention is to facilitate the attachment / detachment of a connector and to properly process the excess length of an optical cord. It is to provide a board.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention removably connects a connector attached to the tip of an optical cord to the front and back sides of a connector connecting plate, and at the front side of the connector connecting plate, a removable extra length. The processing bobbin is provided with a connector connection unit formed by winding the extra length of the optical cord.

[0005]

[Action]

 According to the present invention, the line connection is changed by attaching and detaching the connector at the end of the optical cord from the front of the connector connecting plate. The extra length of the optical cord is wound around a removable extra length processing bobbin and processed.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 is a front view showing the internal structure of an optical fiber cable distribution board 1 according to this embodiment, and FIG. 2 is a right side view. In these figures, reference numeral 2 is a cabinet, and cable holding guides 3A and 3B for holding the outside and inside optical fiber cables drawn inside are arranged in the lower stage of the cabinet 2. Above the guides 3A and 3B, tension member holding guides 4A and 4B for holding the tension members in the optical fiber cable are arranged.

Above the guides 4A and 4B, fusion trays 5A and 5B for fusion-bonding the core wire of the core unit in the optical fiber cable to the core wire in the optical cord as a jumper wire are stacked in multiple stages. It is arranged. Here, in the guides 3A, 3B, 4A, 4B and the fusion trays 5A, 5B, the one marked with "A" corresponds to the optical fiber cable inside the office, and the one marked with "B" is outside the office. Compatible with optical fiber cables. That is, the in-station optical fiber cable and the out-of-station optical fiber cable are drawn from below the wiring box via the cable holding guides 3A and 3B, respectively, and the tension members are held via the guides 4A and 4B, respectively, and then, respectively. The core wire unit is housed in the fusion trays 5A and 5B to be fusion-bonded with the optical cord.

Above the fusion tray 5A, a plurality of connector connection units 100, which are the main part of the present invention, are arranged. In FIG. 1, for convenience, only the lowermost unit 100 is shown by a solid line, and the other units are shown by imaginary lines. Further, as shown in FIG. 2, a front door 6 and a back door 7 are attached to the front and back of the cabinet 1 so as to be openable and closable.

Next, the structure of the connector connection unit 100 will be described with reference to FIGS. 3 and 4. In these figures, 101 is a substrate, and a connector connecting plate 102 is attached to the surface thereof so as to project obliquely upward. A large number of connectors 104 and 105 for connecting the optical cords 201 and 202 (see FIG. 4) to each other via the connector receiving portion 103 are arranged on the front and back of the connector connecting plate 102 in a removable manner. ing. As is clear from FIG. 4, the connectors 104 and 105 are respectively mounted in two stages, the upper and lower stages, each of which corresponds to a line number, and the number display 106 indicates the upper end portion of the connector connecting plate 102. Attached to.

On the other hand, below the connector connecting plate 102, a bobbin housing box 107 having a length corresponding to the connector connecting plate 102 is installed. In the bobbin housing box 107, a surplus length processing bobbin 108 corresponding to the number of lines, that is, the total number of the connectors 104 or 105 is detachably housed. In addition, a duct 109 for accommodating a large number of optical cords is provided on the front surface of the bobbin accommodating box 107. Further, as shown in FIG. 4, a holding plate 110 for mounting a large number of optical cords connected to the connector 105 is provided on the back surface of the substrate 101 in a protruding manner.

FIG. 5 is a perspective view showing the main part of the present embodiment. In the figure, 8 is an optical code holder attached to the inner surface of the side slope of the cabinet 2, 203 is an internal optical fiber cable, and 204 is an optical fiber cable. It is an out-of-office optical fiber cable. In this figure, for convenience, the connector and the extra length processing bobbin are not shown.

Next, focusing on the connector connection unit 100, the operation of the present invention will be described with reference to FIG. For example, a large number of optical cords 202 coming out of the fusion tray 5B are guided onto the holding plate 110 via the optical cord holder 8, and the connector 105 at the tip of the optical cord 202 is connected to the back surface of the connector connecting plate 102 by a predetermined line. Is connected to the connector receiving portion 103.

On the other hand, a large number of optical cords 201 coming out of the fusion tray 5 A are guided into the duct 109 via the optical cord holder 8 and, after the extra length is wound around the extra length processing bobbin 108, The connector 104 at the tip is connected to the connector receiving portion 103 of a predetermined line from the surface of the connector connecting plate 102. Here, it is assumed that the connector 105 on the back side of the connector connection plate 102 is already connected at the time of shipment of the wiring board from the manufacturer, and the user exclusively connects the front side connector 104 according to the line scale and the like.

When the connector is attached / detached for changing the connection of the line, the predetermined connector 104 inside the station may be attached / detached from the front side of the wiring board. As is clear from FIG. Since a large work space is secured in front of the connection plate 102, the attachment / detachment can be easily performed. Further, when the connection of the connector 104 is changed, the corresponding surplus length processing bobbin 108 may be taken out from the bobbin storage box 107 and replaced in the vicinity of a new connection destination of the connector 104. At this time, if the extra length is further generated, it may be wound around the bobbin 108, and if the extra length is insufficient, it may be unwound from the bobbin 108.

In the above embodiment, the outside and inside optical fiber cables are pulled into the wiring board and converted into optical cords, and these are connected by the connector. It is of course also applicable to a system in which a cord group is pulled into a wiring board, an optical fiber cable is converted into an optical cord through a fusion tray, and then connected to the optical cord group by a connector. Also, the number of connector connection units can be any number depending on the number of lines.

[0016]

As described above, according to the present invention, the connector at the end of the optical cord can be attached / detached only in front of the connector connecting plate, that is, on the front surface of the wiring board to change the line connection, so that a large space is available. It is possible to perform work at, and it is possible to greatly improve workability during line switching and maintenance and inspection. This prevents the inconvenience of accidentally disconnecting the connector of the adjacent line when the working space is insufficient. Since the connector connection unit can be arbitrarily increased or decreased according to the number of lines, it has versatility to flexibly cope with the increase or decrease in the number of lines.

Since the extra length of the optical cord can be wound around a dedicated extra length treatment bobbin for processing, the extra length can be processed neatly for each core, and the extra length core wire diameter can be reliably secured. In addition, it is possible to prevent the extra length from interfering with various work and impairing the aesthetic appearance.

Since the fusion tray for converting the optical fiber cable into the optical cord and the connector connecting unit are arranged completely separated from each other, there is no possibility of a disconnection failure of the core wire and the reliability can be improved. .

[Brief description of drawings]

FIG. 1 is a front view showing the internal structure of an embodiment of the present invention.

FIG. 2 is a right side view of the embodiment.

FIG. 3 is a front view of a connector connection unit.

FIG. 4 is a side view of the connector connection unit.

FIG. 5 is a perspective view showing a main part of the embodiment.

FIG. 6 is a side view for explaining the operation of the connector connection unit.

[Explanation of symbols]

 1 Optical Fiber Cable Distribution Board 2 Cabinet 3A, 3B Cable Holding Guide 4A, 4B Tension Member Holding Guide 5A, 5B Fusion Tray 6 Front Door 7 Back Door 8 Optical Code Holder 100 Connector Connection Unit 101 Board 102 Connector Connection Plate 103 Connector receiving part 104, 105 Connector 106 Number display 107 Bobbin housing box 108 Extra length processing bobbin 109 Duct 110 Holding plate 201, 202 Optical code 203 In-station optical fiber cable 204 Out-of-station optical fiber cable

Claims (1)

[Scope of utility model registration request] 1. A connector attached to the tip of an optical cord is detachably connected to the front and back sides of the connector via a connector connecting plate, and the optical cord is attached to a removable extra length processing bobbin on the front side of the connector connecting plate. An optical fiber cable distribution board comprising a connector connection unit formed by winding the extra length of.