RU136197U1 - TELECOMMUNICATION DEVICE WITH REMOVABLE INSTALLATION CARTRIDGES FOR FIBER-OPTICAL COMMUNICATION LINES - Google Patents

Abstract

Telecommunication device, made in the form of a cabinet or a box with a holder installed in it, fastening on one side to the rear wall of the cabinet, on which removable mounting cassettes with optical signal distributors are installed, characterized in that the holder is attached to the bracket connected to the bottom wall of the cabinet on the second side , in cross section has the shape of a channel, on the upper and side surfaces of the holder there are through slots for installing removable mounting cassettes, while the shape of the slots is made with the ability to rotate the cassette from vertical to horizontal, each mounting cassette is non-separable and contains a bar for installing optical adapters, a section for laying out stocks of optical elements and a removable splice cassette for storing and fixing optical fibers of the floor cable and their splices in it, for connecting the cassette with a holder, a rectangular recess is made on it, a bracket for mounting cassettes is mounted on the rear wall of the cabinet, to connect the cassettes to each other on the back of the cassette brackets are mounted, and corresponding holes are made on an adjacent cassette.

Description

The technical solution relates to means for constructing optical communication lines, in particular to telecommunication cabinets and boxes used for terminating, distributing and switching optical fiber fibers.

Known modular cable box for fiber optic communication lines (see RF patent No. 2371743, IPC G02B 6/44, publ. 03/27/2009) containing rotary plates on which are mounted cassettes with splices of optical fibers, each rotary plate is made L -shaped, its rotation axis is perpendicular to the plane of one part of the L-shaped plate, and the section for mounting the cartridge with splices of optical fibers is on the other part of the plate.

The disadvantage of this design is the inconvenience of the installers in the installation, dismantling and maintenance of fiber-optic communication lines.

In a telecommunication device (patent RU No. 109574 U1) with a similar method of the design itself, the cassettes are removable. However, the cassettes are attached to each other at the same point; when removing the cassette, it can be hooked on a diluted optical cable, and if the adapter is accidentally dropped, the location of the optical adapters from below will break the fiber.

The prototype was taken as a modular cross block of an optical communication line (patent RU No. 101210 U1), characterized in that it is installed in a three-dimensional protective structure such as a cabinet with a back wall, on which a three-dimensional bracket with side step-shaped supports is fixed, with each step of the support it is articulated connected a hinged shelf having means for attaching a removable cassette to it for fixing and storing optical fibers of a communication cable and their splices in it, each shelf has a bar connected to it with slots for installing removable optical adapters, the unit is removable, and all shelves in their working position have a fixed connection with the rear wall. The disadvantage is the low rigidity of the removable unit, as well as the fact that the entire unit is removed, which is not always convenient, especially if the cabinet is already mounted on the wall.

Thus, the known devices do not sufficiently provide the convenience of the installers during installation, dismantling and maintenance of fiber-optic communication lines, in particular, when working with elements of communication lines that are located in modular cross blocks mounted in cabinets specially designed for this purpose (boxes ), which significantly affects the complexity and quality of work performed.

The technical result of the invention is to increase the convenience of installation and switching of elements of optical cable systems, which leads to a decrease in labor intensity and an increase in the quality of work performed.

The technical result is achieved due to the fact that the proposed device is made in the form of a cabinet or box with a holder installed in it, fastened on one side to the rear wall of the cabinet, on which removable cassette modules with optical signal distributors are installed. What is new is that the holder is attached to the bracket with the second side connected to the bottom wall of the cabinet, in the cross section it has the shape of a channel, through the slots are made on the side surfaces of the holder for installing removable mounting cassettes, while the shape of the slots is designed to rotate the cassette from vertical to horizontal position, each mounting cassette is non-separable and contains a bar for installing optical adapters, a section for laying out stocks of optical elements and a removable splice cassette for storing and fixing the optical fibers therein interstorey cable and splice cassette holder connection is formed on it a rectangular recess for connecting tapes with each other on the back side of the cassette mounted brackets, and a cassette made connectable matching holes.

Such an implementation provides an increase in quality and a decrease in the complexity of operations for the maintenance and repair of equipment by increasing the convenience of maintenance.

Figure 1 of the accompanying drawings shows a telecommunication device for a fiber optic communication line, front view (one half of the cover is removed);

figure 2 is the same side view of figure 1;

figure 3 is the same, a top view of figure 1;

figure 4 - removable mounting cassette in the working position;

figure 5 - removable mounting cassette, rear view;

figure 6 - holder cassettes;

Fig.7 - removable cassettes in the working (vertical) position;

on Fig - part of the removable cassettes in the mounting (horizontal) position.

A telecommunication device for a fiber-optic communication line contains a cabinet 1 (Fig. 7, 8) with upper 2 and lower 3 walls with holes in them 4 and 5 (Fig. 3) for input and output of communication cables, side walls 6 and 7, and the back wall 8, in which the holes 9 are made (Fig. 1) for attaching the cabinet to the wall. A holder 10 (FIG. 2) is attached to the rear wall of the cabinet 1, with mounting holes 11 having a cross-section in the shape of a channel in which slots 12 are made for installing removable mounting cassettes 13, while the shape of the slots allows the cassette to rotate from vertical to horizontal position . A bracket 14 is attached to the bottom wall 3 for attaching the second side of the holder 10 to it. The mounting cassette 13 (Fig. 4) is made monolithic and divided into 3 sections: section 15 for laying out the reserves of the mounting cable with a removable splice cassette 16 fixed to it, designed to protect welding spots of the subscriber cable with pigtails; section 17 for installing removable optical adapters, a section with organizers 18 for laying out the reserves of the outputs of optical splitters. For the connection of the cartridge with the bracket 30, a rectangular recess 19 is made. For the connection of the cartridge 13 with each other and all together with the rear wall 8 of the cabinet 1, removable clips 22 (Fig. 5) and brackets 23 are installed on the cassettes. For fixing the input and output electric cables to brackets 24 and 25 are installed in the cabinet. For mounting the central power elements of the optical cables, brackets with clamping plates 26 are installed in the cabinet 1. Organizers 27 are designed for calculating the stock of input and output fibers of the optical splitters installed in organizer 28. On the rear wall of the cabinet 1, an organizer 29 is installed for laying out the stock of fibers of the main optical cable and an arm 30 for fixing the cartridge block in a vertical position.

The device operates as follows.

The cabinet 1 through the holes 9 is attached to the wall, the cassettes 13 are connected to each other and the rear wall of the cabinet by means of the clips 22 and the brackets 23.30 and mounted vertically on the holder 10. For installation work, the cartridge 13 is rotated in the slots 12 by an angle of 45 ° and they are removed from the holder 10, then through the holes 4, optical cables are inserted into the cabinet and fastened in the cabinet to the brackets 24. The central power element of each cable is fixed with clamping plates 26. The cable fibers are welded in the splice cassette 16 of the mounting cassette 13 with pigtails, connected emymi to optical outlets. The stock of fibers is placed in the area 15 of the splice cassette. The outputs of the first optical splitter are stacked on the Organizers 18 and connected to the optical adapters on the mounting cassette 13. For the remaining cassettes, the leads of the optical splitters are connected to the sockets, pigtails are welded into the splice cassette 16 with the fibers of the interfloor cable attached to the brackets 25, and brought out through holes 5.

Claims (1)

Telecommunication device, made in the form of a cabinet or a box with a holder installed in it, fastening on one side to the rear wall of the cabinet, on which removable mounting cassettes with optical signal distributors are installed, characterized in that the holder is attached to the bracket connected to the bottom wall of the cabinet on the second side , in cross section has the shape of a channel, on the upper and side surfaces of the holder there are through slots for installing removable mounting cassettes, while the shape of the slots is made with the ability to rotate the cassette from vertical to horizontal, each mounting cassette is non-separable and contains a bar for installing optical adapters, a section for laying out stocks of optical elements and a removable splice cassette for storing and fixing optical fibers of the floor cable and their splices in it, for connecting the cassette with a holder, a rectangular recess is made on it, a bracket for mounting cassettes is mounted on the rear wall of the cabinet, to connect the cassettes to each other on the back of the cassette brackets are mounted, and corresponding holes are made on an adjacent cassette.

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