UA77955C2 - Wiring diagram for wideband filters - Google Patents

Abstract

In wideband filter installations and connections it is proposed to replace the conventional connection assembly for connecting the filter card (1') to the corresponding wiring (7), by a single strip (8) with closed contacts. This allows the size of the frame (5') to be significantly reduced and also allows the contact between the voice input and the corresponding output to be maintained in the event of a failure at the data input. In addition, the filter cards (1') preferably are individual cards, for a single user, allowing to install them one-by-one on a multiple strip as the number of users increases.

Description

Description of the invention

The present invention relates to wideband filters and their connection and is intended for use in 2 fields of telecommunications.

More specifically, the present invention relates to telephone networks used by different operators that carry out the transmission of information to different subscribers or customers, and provides for a significant simplification of connection to communication channels at the level of the mentioned broadband filters, as a result of which the volume of cells that hold mentioned communication channels, and panels that contain such cells, and at the same time, it is possible to unlock and carry out broadband connections in any area intended for distributors, ensuring the distribution and efficiency of telephone lines.

In the telecommunications sector, there are several operators that carry out the transmission of voice information to various subscribers or customers, which requires a complex telephone network, which involves a large number of electrical, mechanical and similar elements that make it possible to carry out such transmission. 12 In fact, the mentioned telephone network includes a switching point responsible for bringing the various signals and lines for voice messages, and lines connected by long cables with the corresponding horizontal and vertical distributors, designed to carry out the distribution and ensure the efficiency of the said telephone lines, allowing , thus, subscribers can use the telephone network. When one operator has to transmit other information, not only speech, but, for example, video signals, Ipiegpeg information, etc., in a wide band, an access multiplexer with a digital line is used, which receives speech signals from horizontal distributors and broadband signals from appropriate servers, for example, from the Ipiegpei server . This multiplexer is supplemented with filters or dividers that can add both signals and redistribute them through vertical splitters for transmission to subscribers. Before the subscriber receives this signal, additional filters or splitters separate these two signals, providing the subscriber with both a voice line and a broadband line. Gee)

According to the latest rules, it is established that the network on the street, known as the customer loop, can be used interoperably by other operators. That is, the other operator must install a system similar to the system used by the first operator, using a cable laid on a street that enters the area of the first operator. at

Once the second operator has been identified, it must perform the same functions as the first operator, while there is sufficient independence for the second operator to use the speech signal provided by the first operator and the broadband signal received directly from the broadband o server, and to provide to a subscriber of similar services, using its own general structure, distributors, e-filters, etc. 3o More specifically, in practice, the mentioned dividers are placed in large cells with appropriate housings, into which are inserted printed circuit boards with appropriate electrical elements, such as converters, inductors, capacitors, resistors, connectors, etc., which can filter incoming signals depending from a given output device. "

In particular, as shown in Fig. 1, known filter boards (1) include an edge connector (2) with 50 normally open contacts and they are connected via a printed circuit board (3) to a first connector (4) placed on the rear part of the case (5), and all this is located in the area of the divider. From the back of the case (5)

And» the mentioned elements are connected to the corresponding distributors by means of a second connector (6) and a cable (7), for which conventional connecting strips, open or closed, are provided.

As mentioned above, the edge connector (2) has normally open contacts, so that their action is similar to the action of open connecting strips, which make it possible to connect an information signal independent of the 7 normal speech signal. The disadvantage of this is that, in the event of a malfunction that requires repair of the -I board, the subscriber is deprived of full communication, albeit for a short time, because until the board (1) is replaced with a new one to repair the previous one, there is no voice or information input signals o In addition, the used boards always include more than one filter, that is, they are boards with "n-1" filters, cl 20 so that for one subscriber who needs a signal, it is necessary to install a board with "n-1" filters, thus n - the number of filters remains unused until more subscribers connect, which ultimately leads to financial and material costs.

In addition, if one of the above-mentioned filters fails and is used by more than one subscriber, the entire board has to be removed, leaving other subscribers without service until the board is repaired, 22 or auxiliary boards must be available, causing increased costs .

GF) The large size of the cells, which contain filter boards and their connections, leads to the fact that special areas are allocated to them in the form of large panels, which are always far from the distribution zone, which also leads to an increase in costs due to the necessary land plots, materials, wiring, etc.

The objective of this invention is to simplify the connection scheme, mainly in the areas designated for filters 60 and dividers, in order to reduce capital investments and save space.

The problem is solved in the connection scheme of broadband filters, which contains filter boards and their connection with wires, in which, according to the invention, the connection with wires (7) is made through a contact strip (8), which has closed contacts (9) during operation, between which the filter boards (1) are directly inserted, and the connection is in a narrow housing (5) for placement in the areas intended for neighboring bo distributors and located in front of horizontal distributors. The contact strip (8) has an input (10) for an information signal, an input (11) for a speech signal and an output (12), in which the mentioned two input signals are switched, and is made with the possibility of closing contacts between the input (11) for a speech signal and output (12) while preserving the connection between them in the event of a malfunction of the input (10) for the information signal and removing the corresponding filter board (1. The filter boards (1) are individual, that is, for an individual subscriber, so that in the event of a malfunction of them can be pulled out without leaving other subscribers without service.The filter boards (1) have conventional wires designed to connect them to the contact strips placed in the area of the horizontal distributors.

More specifically, one of the improvements of the present invention is to remove the edge connector with an open 7/0 contact, the above-mentioned printed circuit board and its corresponding connectors, and make the connection exclusively through connection strips with closed contacts, which in addition to greatly simplifying the circuit also assumes that in the event of a failure, it will be enough to pull out the corresponding fee, disconnecting the information signal, and at this time maintain communication with the subscriber in the form of a voice signal, thereby not leaving the subscriber completely without service.

The simple connections eliminate the need for additional fixtures on the front of the case, and only a very simple back of the case is required to support said connection strip, reducing the space required for the case and opening up the possibility of establishing a connection scheme in the areas intended for neighboring distributors, in front of horizontal distributors, which are responsible for the distribution and performance of telephone lines.

The use of the mentioned contact strips proposed by the present invention, in addition, makes it possible to use individual filter boards, that is, boards for one subscriber, simplifying their removal for repair in the event of a malfunction and not leaving the remaining subscribers without service.

All this allows you to additionally connect individual filter boards to the contact strips in the areas intended for horizontal distributors, using simple wires in the boards themselves.

These and other characteristics of the present invention will become clear from the drawings illustrating the preferred embodiments.

Fig. 1 is a schematic representation of the traditional connection scheme of broadband filters. at);

Fig. 2 is a diagram similar to the diagram in Fig. 1, but made according to the present invention.

Fig. 3 is an enlarged sectional view of one of the closed contacts used in the filter connection scheme according to the present invention. Fig. 4 is a schematic representation of one of the individual boards with filters according to the present invention.

In contrast to the traditional filter connection scheme shown in Fig. 1, according to one of the variants of this invention, the board (1) with filters is connected to the corresponding cable (7) using one contact Ge! strips (8), in particular strips with closed contacts, as shown in Fig.3.

As can be seen in Fig. 1 and 2, this solution involves the removal of the usual printed circuit board (3) and its additional connectors (4) and (6), as well as the removal of the edge connector (2) and possible replacement of the case ( 5) a new case (5), which can be much smaller. That is, the simplicity of these connections eliminates the need for large enclosures that were necessary to hold conventional panels, and eliminates the need for numerous connectors and a large number of fixtures, all of which are very expensive, and only the back of the enclosure is used (5). , as a result of which the required space is drastically reduced and, in addition, it is possible to install this "70 Case in the areas intended for neighboring distributors, in front of horizontal distributors. As shown in Fig. 3, the contact strip (8) tends to keep its contacts (9) permanently closed, so that when a failure occurs in the information signal shown by arrow 10, it is sufficient to remove the corresponding board, maintaining the connection between the input (11) of the voice signal for the subscriber and the corresponding output (12), i.e. without leaving the subscriber without voice signal service.

As shown in Fig. 4, a number of individual filter boards (1) are installed on the filter element (13) and on the multi-section strip (8) with closed -I contacts, that is, one for each subscriber, which makes it possible to remove them separately for repair in in the event of a failure or unforeseen event, not leaving others behind

Sh- subscribers without service.

Ge) In order to connect the individual filter boards (1) with the strips placed on the sections 5p intended for horizontal distributors, simple wires are provided on the boards (17). o Specialists in this field understand that this invention is not limited to the described variants of implementation and that additions and modifications are possible within the scope of the invention defined by the following formula.

Claims (4)

Formula of the invention (F) 1. Broadband filter connection scheme, which contains filter boards and their connection with wires, which differs in that the connection with wires (7) is made through a contact strip (8), which has closed contacts (9) during operation, between which filter boards (1) are directly inserted, and the connection is located in a narrow housing (5) for placement in areas intended for adjacent distributors and located in front of horizontal distributors. 2. Connection scheme according to claim 1, which is characterized by the fact that the contact strip (8) has an input (10) for an information signal, an input (11) for a speech signal and an output (12), in which the mentioned two input signals are switched, and made with the possibility of closing the contacts between the input (11) for the speech signal and the output (12) with preservation of the connection between them in the event of a malfunction of the input (10) for the information signal and the removal of the corresponding filter board (1. 3. The connection scheme according to claim 1 or claim 2, which differs in that the filter boards (1) are individual, that is, for a single subscriber, so that in the event of a malfunction they can be removed without leaving other subscribers without service. 4. The connection scheme according to point C, which differs in that the filter boards (1) have ordinary wires designed to connect them to the contact strips located in the area of the horizontal distributors. se ch o I c) I c) Ge) cha - no s 1» -I -I (se) 1 sl ko bo b5