RU21699U1 - SWITCH BOX - Google Patents

Abstract

A switch box containing a metal case with a plinth inside, characterized in that the plinth has mortise openable contacts with connected jumper wires, and in the case there is an additional terminal block, a board with a socket for connecting measuring instruments, and the case rests on its base on a hollow rack equipped with ventilation holes, while fixing the cables in the housing is carried out by means of a clamping strip, and inside the hollow rack using a polymer plug.

Description

Switch box.

The invention relates to communication technology.

Known sealed junction box for electrical cables, containing a base for fastening cable cores and glands but the number of cables, moreover, the base is made up of individually sealed ends, pulled together with studs sections, each of which has a U-shaped body, removable flanges for accommodating glands, mounted on side walls of the casing and a bar located in the wide part of the casing for fixing the connecting cores (see AS USSR No. 607303, class N 02 G 3/08, 1978)

The disadvantages of this device are the design complexity, lack of technological capabilities.

A cable communication box is known, consisting of a metal case, inside of which there is a ten-pair skirting for screw connection of subscriber air lines, which in its lower part has ten pairs of petals for soldering the main cable (see Rules for the maintenance and repair of cable, air and adjacent lines flattering communication networks., Moscow "Informsvyaz, 1996, pp. 694 - 695, prototype).

The disadvantages of this device are the complexity of the design, lack of technological capabilities, the need to use coupling joints outside the design of the device.

The basis of the claimed device is the task of expanding technological capabilities in the organization of switching nodes of small capacity without the use of couplings.

2001116905

HIIHiiniillMillH

20011 1 690

MKI N 02 G 3/08

The technical problem is solved in that in the switching box containing a metal case with a plinth inside, the latter has mortise openable contacts with connected jumper wires, and in the case there is an additional terminal block, a board with a socket for connecting measuring devices, and the case rests on its base on a hollow rack equipped with ventilation holes, while fixing the cables in the housing is carried out by means of a clamping strip, and inside the hollow rack using polymer traffic jam.

Comparison of the proposed device with the known shows that the known devices are intended for switching subscribers of overhead communication lines. The proposed device is intended for switching distribution communication cables with subscriber lines laid in the telephone conduit, for which the device is equipped with a hollow rack for feeding them into the device’s casing, and both are secured by means of a polymer, for example, polyurethane foam plug and pressure strip. Cable crossing with subscriber lines is carried out directly in the device case using plinths with mortise openable contacts, which allows avoiding soldering of cable conductors and jumper wires, as well as from numerous connecting nodes, in particular from connection couplings, and performing quick switching of subscribers, while no shutdown of all active lines is required. The presence of a socket for connecting electrical measuring devices allows you to quickly determine the integrity of the insulation and its resistance.

transition resistance, as well as signal attenuation resistance and distance for the place of cable damage. The presence of ventilation holes promotes good ventilation inside the device, avoids the formation of condensate and corrosion processes, which meets the criterion of "novelty.

The inventive device is illustrated in the drawing.

In FIG. 1 shows the inventive device.

The device consists of a hollow rack 1, housing 2.

In case 2, a plinth 3 with mortise openable contacts, terminal block 4, clamping strip 5, jumper wires 6, board 7 with socket 8 for connecting measuring instruments are placed.

The zero stand 1 has in its upper part air vents 9 and a polymer plug 10.

The distribution cable from the telephone drain through the hollow rack 1 is fed into the housing 2, where each pair of cable cores is connected to the upper part of the skirting board 3 through the mortise contacts. Cables of subscriber lines also from the telephone conduit through the rack 1 enter the housing 2. They are connected in pairs to the bottom of the terminal block 4. When entering the device, all cables of the rack 1 are secured with a polymer plug, for example, polyurethane foam, and in the housing 2 with a pressure strip 5.

Switching of distribution and subscriber cables is carried out by a pair of cross-over wires 6, one end of which is connected to the corresponding pair of disconnected contacts at the bottom of the base 3, and the second end is at the top of the terminal block 4.

need to change the address of the active lines.

Author: /% of subscriber, without disconnecting all

Claims (1)

A switch box containing a metal case with a plinth inside, characterized in that the plinth has mortise openable contacts with connected jumper wires, and in the case there is an additional terminal block, a board with a socket for connecting measuring instruments, and the case rests on its base on a hollow rack equipped with ventilation holes, while fixing the cables in the housing is carried out by means of a clamping strip, and inside the hollow rack using a polymer plug.