RU202273U1 - DIGITAL AUTOMATIC TELEPHONE STATION RECORDER MODULE - Google Patents

Abstract

The utility model relates to the field of electrical engineering, communications and telecommunications, in particular to adapters such as adapters from a storage device (HDD) to a memory card for use in digital automatic telephone exchanges. The technical result is an increase in the stability of the Teltronics IXP automatic telephone exchange during the planned replacement of CF memory cards, used instead of a failed standard hard disk, ensuring the speed and convenience of the planned replacement of the information carrier. The task is achieved by the fact that it is proposed to use an adapter for the memory device of a digital automatic telephone exchange, containing a printed circuit board with wiring, which reduces the parameters of parasitic connections between nearby elements and conductive conductors connecting two male and female IDE connectors located on the printed circuit board. 3 C.p. f-ly, 2 dwg

Description

The utility model relates to the field of electrical engineering, communications and telecommunications, in particular, to adapters such as adapters from a storage device (HDD) to a memory card for use in digital automatic telephone exchanges.

Despite the wide variety of digital automatic telephone exchanges (PBXs) on the market today, many oil and gas companies use proven models such as the Teltronics IXP.

The Teltronics IXP Integrated Networking Platform (ICP) is a family of modules that serve as a platform for digital communications switching. This model is a microprocessor-based time division multiplexing circuit in which tones or analog data signals are first encoded into a standard discrete format, routed as needed, and then decoded into their original analog form.

The ICP is software controlled, with source code loaded from the system hard disk into internal random access memory (RAM). The same hard drive houses the database, which is a customer-configurable array of information that allows you to create unique operating parameters for the switch. Each tier of shared equipment can store two databases, one active and one inactive. Thus, during the operation of the automatic telephone exchange, the information is constantly read and written from the hard disk, which requires its high reliability and a long MTBF.

The hard disk used in the ISP has a size of 2.5 ”and is connected to the PBX central processor board via an IDE format interface. Taking into account the peculiarities of the architecture of the central processor of the ATS Teltronics IXP, the volume of the addressable memory of the hard disk does not exceed 512 MB. However, at present, hard drives of such a small volume are not produced, which does not allow them to be purchased for planned replacement. The repair of existing standard hard drives is carried out by a limited number of organizations, takes a long time and is quite expensive. Moreover, even after the repair, the resource of using hard drives remains rather small, which does not completely solve the problem of updating the information carrier.

Thus, the problem arises of finding and choosing a storage medium for a Teltronics IXP automatic telephone exchange, which could be used instead of a standard hard disk, provided a sufficiently long MTBF, and also allowed its quick and cost-effective replacement.

A possible solution to this problem is the use of modern memory cards as a storage medium, in particular, CF format (Compact Flash version 4.0), which are widely available on the market with 512 MB cards, speed, compactness and low cost. However, connecting a CF card to the Teltronics IXP PBX CPU card requires the use of an adapter, or memory card adapter, from CF format to 2.5 ”44-pin IDE disk drives.

Several models of suitable CF-IDE adapters are available on the market, such as IDE441CF from StarTech [1] or Delock44 (91655) from Delock [2]. They are a small printed circuit board with a CF connector and a standard IDE type 44pin Male, in the first of which a CF memory card is inserted, and the second is connected to the IDE connector of the answering PBX device.

Also from the application for the German patent DE 102006025913A1 (published on 06.12.2007, IPC G06F 13/385) an adapter of memory cards, for example, CF format, is known, intended for using cards in devices that do not have a corresponding connector. The adapter contains a memory element and a processor that ensure the compatibility of the interfaces of the used card and the response device.

The disadvantage of the known memory card adapters when used in the Teltronics IXP digital automatic telephone exchange is the impossibility of their rigid and reliable fixation in the compartment designed to accommodate a standard 2.5-inch hard drive.

Despite the large number of read / write cycles provided by modern CF cards, they do not reach the values provided by hard drives. This will require more frequent replacement of the CF memory card than the standard hard drive. And since the well-known memory card adapters do not have the ability to fix them in the hard disk compartment of a Teltronics IXP type PBX, with relatively frequent replacement of the memory card, the IDE connector may become loose, entailing disruption of the contact between the card adapter and the CPU board.

The claimed utility model is designed to eliminate this drawback. The technical result is to increase the stability of the Teltronics IXP automatic telephone exchange during the planned replacement of CF memory cards used instead of a failed standard hard disk, providing quick and convenient planned replacement of the storage medium.

The technical result is achieved by the fact that it is proposed to use an adapter for a memory device of a digital automatic telephone exchange, containing a printed circuit board with wiring that reduces the parameters of parasitic connections between adjacent elements and conductive conductors connecting two IDE connectors of the Male type and the Female type located on the printed circuit board. The first IDE male connector is located along the short sides of the printed circuit board and is directed with its connecting pins towards the connection with the corresponding connector of the digital automatic telephone exchange. The second IDE female connector is located on the PCB behind the IDE connector along the short sides of the PCB, directed with its connecting pins to the opposite side of the first IDE Male connector and is intended for connection to the corresponding connector of the memory card adapter, which can be, for example, adapters IDE441CF or Delock44 (91655). At the corners of the printed circuit board there are holes for its attachment to the body of the central processor board of the digital automatic telephone exchange, and in the middle part of the printed circuit board there is a mechanism for fixing the memory card adapter to the printed circuit board. The locking mechanism can be two longitudinal holes along the long sides of the PCB. A standard 3x60 mm nylon tie is threaded through the longitudinal holes.

Next, the device is explained in more detail with reference to FIG. 1, which shows an embodiment of a memory device adapter for a digital automatic telephone exchange.

The digital automatic telephone exchange memory adapter contains a single-sided printed circuit board (1) having a substantially rectangular shape, corresponding to the size and shape of a standard 2.5 ”hard disk. On the printed circuit board (1), along its opposite short sides, there are two IDE connectors of the Male type (2) and the Female type (3), interconnected by wiring on a double-sided printed circuit board (Fig. 2), and the connection pins of the IDE connectors (2, 3) directed in the opposite direction (Fig. 1).

The first IDE connector (2) is intended for connection with the corresponding connector of a digital automatic telephone exchange, intended for connecting a standard hard disk. The second IDE connector (3) is intended for connection with the corresponding connector (4) of the adapter (5) of the memory card.

At the corners of the printed circuit board (1), holes with a diameter of 3 mm (6) are made for its attachment to the body of the central processor board of a digital automatic telephone exchange. In the middle part of the printed circuit board (1), rectangular holes are made for the mechanism (7) for fixing the adapter (5) of the memory card to the printed circuit board (1).

The adapter is used as follows.

The adapter (5) of a memory card, for example, of the type IDE441CF or Delock44 (91655), accepts a CF memory card (8) of the required size.

Next, the adapter (5) of the memory card is inserted into the IDE slot (3) of the printed circuit board (1) and is additionally fixed on it by means of a fixing mechanism (7), made, for example, in the form of a standard nylon tie installed through longitudinal rectangular holes along the long sides printed circuit board, as shown in FIG. one.

Next, the printed circuit board (1) is installed in the compartment designed to accommodate a standard hard disk, ensuring that the IDE connector (2) of the memory device adapter is in contact with the corresponding IDE connector of the digital automatic telephone exchange, and is fixed in it with four screws through the holes (6).

The proposed memory device adapter for a digital automatic telephone exchange allows Teltronics IXP PBXs to use cheap CF memory cards available on the market instead of standard hard drives, providing quick and convenient planned replacement of the storage medium, and high reliability of the PBX.

List of sources:

1. Adapter CF-IDE [Electronic resource]. URL https://www.startech.com/support/IDE441CF (date accessed: 20.05.2020).

2. Adapter CF-IDE [Electronic resource]. URL https://www.delock.de/produkt/91655/merkmale.html (date accessed: 05/20/2020).

Claims (4)

1. A memory module for a digital automatic telephone exchange, containing a substantially rectangular printed circuit board with wiring, located on the printed circuit board and located along the short sides of the printed circuit board, two male and female IDE connectors, connected to each other by means of a printed circuit board the board and directed by its connecting pins in the opposite direction, with the first IDE male connector located along the short sides of the printed circuit board and directed with its connecting pins towards the connection with the corresponding connector of the digital automatic telephone exchange, and the second IDE female connector is located on the printed circuit board behind the connector IDE along the short sides of the printed circuit board, with its connecting pins directed to the opposite side of the first IDE connector, Male type, and is intended to be connected to the corresponding connector of the memory card adapter, characterized in that the topology of the printed circuit board is made on with a decrease in parasitic effects due to the fact that male and female IDE connectors are in close proximity to each other and their conductors are short, while holes are made in the corners of the printed circuit board to attach it to the digital central processor board automatic telephone exchange, and in the middle of the printed circuit board there is a mechanism for fixing the memory card adapter to the printed circuit board. 2. The memory module according to any one of paragraphs. 1-2, characterized in that the locking mechanism consists of two longitudinal holes made along the long sides of the printed circuit board with a threaded standard nylon tie. 3. The memory module according to any one of paragraphs. 1-2, differing in that it is intended for use with an IDE441CF type CF memory card adapter. 4. The memory module according to any one of paragraphs. 1-2, differing in that it is intended for use with a CF memory card adapter of type Delock44 (91655).

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