KR100400966B1 - EXTERIORITY DSLAM DEVICE IN xDSL SYSTEM - Google Patents

Abstract

The present invention relates to an external DSLAM device in an xDSL system, and more particularly, transmits data and voice signals to a subscriber through a telephone line, and separates the subscriber's signals into voice signals and data, thereby providing a telephone company or a corresponding digital subscriber processing board. A plurality of splitter boards 200 each transmitting to 10; Rectifier 300 for receiving the AC power to convert the DC power supply; A battery 400 for supplying emergency power by charging DC power; The rectifier 300 and the plurality of digital subscriber processing boards 10 are mounted on the left side in a self form, and the plurality of splitter boards 200 are mounted on the right side inside so that the front faces to the right, and the battery 400 Is mounted on the bottom, the first door 110 is mounted on the front and at the same time the right side the second door 120 is mounted on the rack structure of the housing 100; A cooler 500 mounted to the rear of the housing 100 to cool the air in the housing 100; And a fan unit 600 for circulating the cooled air. The present invention provides a plurality of subscribers concentrated in an xDSL out-of-service area due to a distance environment and installed at an arbitrary place outdoors in a large number of subscribers. There is an outstanding effect that can provide xDSL service regardless of external environment.

Description

EXTERIORITY DSLAM DEVICE IN xDSL SYSTEM

The present invention relates to an external DSLAM device in an xDSL system, and more particularly, an xDSL that enables a DSLAM (Digital Subscriber Line Access Multiplexer; DSLAM) system that provides xDSL service to be installed outdoors in a subscriber's residence. An external DSLAM device in a system.

DSL (Digital Subscriber Line, or "DSL") is a technology for high-speed transmission of information to homes and small businesses over ordinary copper telephone lines. In this case, xDSL collectively refers to various other variants of DSL, such as Asymmetric Digital Subscriber Line (ADSL), High bit-rate DSL (HDSL), and Rate-Adaptive DSL (RxDSL). If your home or business is close enough to the office of the telephone company that provides DSL services, you can receive data at speeds of up to 6.1 Mbps to enable continuous transmission of video, audio, and even three-dimensional effects. More typical individuals will be served at speeds ranging from 1.544 Mbps down to 512 Kbps down and up to 128 Kbps upstream. The DSL line can transmit both data and voice signals, and the data line part is continuously connected. The installation of DSL began in 1998 and is growing rapidly in the United States and many other countries. Compaq, Intel and Microsoft have worked with phone companies to develop an xDSL called G.Lite, which is easy to develop and install standards, making it easy to spread. DSL is expected to replace the Integrated Services Digital Network (ISDN) and compete with cable modems in many areas for the delivery of multimedia and three-dimensional information to homes and small businesses.

In addition, DSLAM is used to service a large number of DSL digital subscribers. DSLAM is a network equipment that is usually installed in a telephone company. It receives signals from digital subscriber line connections of multiple customers and uses multiplexing technology to signal high-speed backbone lines. It is responsible for sending. Depending on the product, a DSLAM multiplexer may connect DSL lines with a combination of ATM, frame relay, or IP networks. DSLAM enables telephone companies to provide high-speed telephone line technology and high-speed backbone network technology to business and home users.

DSLAMs that support xDSL services of conventional telephone offices generally cover a maximum range of 5.5km and increase the data rate when they are close to the telephone company. However, the DSLAM supporting the xDSL service of the conventional telephone company described above has a problem in that it cannot be used or slows down in a home user or enterprise who wants to receive the xDSL service in an area over a radius of 5.5 km.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide an xDSL service to subscribers by implementing a DSLAM system outdoors where xDSL service is not provided due to distance characteristics. In addition, the present invention provides an external DSLAM device in an xDSL system that provides an xDSL service by simply connecting a telephone line when providing an xDSL service to a general telephone subscriber.

In order to achieve the above object, the external DSLAM device in the xDSL system of the present invention is a DSLAM system having a plurality of digital subscriber processing boards for performing transmission and reception data conversion and interface functions of a telephone company and a subscriber.

The data of the plurality of digital subscriber processing boards and the voice signal of the telephone company to send to the subscriber via the telephone line, while the signal of the subscriber is separated into the voice signal and data transmitted to the telephone company or the corresponding digital subscriber processing board respectively Splitter boards;

A rectifier for receiving AC power and converting the same into DC power to supply the plurality of digital subscriber processing boards and the plurality of splitter boards;

A battery for supplying emergency power by charging the DC power of the rectifier;

The rectifier and the plurality of digital subscriber processing boards are mounted in a self form on the left side of the inside, and the plurality of splitter boards are mounted on the right side of the inside with the front side facing the right side, and the battery is mounted on the bottom side, A housing having a rack structure in which a first door is installed and a second door is installed on a right side thereof;

A cooler mounted on a rear surface of the housing to cool air in the housing; And

It is characterized in that the fan unit is mounted to one side of the housing to circulate the cooled air.

1 is a front view showing an internal view of an external DSLAM device in an xDSL system according to an embodiment of the present invention;

2 is a right side view of an external DSLAM device in an xDSL system according to an embodiment of the present invention;

3 is a right side view showing an internal view of an external DSLAM device in an xDSL system according to an embodiment of the present invention;

4 is a plan view of an external DSLAM device in an xDSL system according to an embodiment of the present invention;

5 is a front view of an external DSLAM device in an xDSL system according to an embodiment of the present invention;

FIG. 6 is a functional block diagram illustrating a configuration of a terminal block type splitter board among external DSLAM devices in the xDSL system according to FIG. 2.

7 is a functional block diagram illustrating a configuration of a board-type splitter board among external DSLAM devices in the xDSL system according to FIG. 2.

<Explanation of symbols for the main parts of the drawings>

10: digital subscriber processing board 100: housing

110: first door 120: second door

200: splitter board 210: splitter unit

300: rectifier 400: battery

500: cooler 600: fan unit

700: power meter

Hereinafter, an external DSLAM device in an xDSL system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are front and right side views illustrating the inside of an external DSLAM device in an xDSL system according to an embodiment of the present invention. The external DSLAM device in an xDSL system according to an embodiment of the present invention is a digital subscriber. It consists of a processing board 10, a housing 100, a splitter board 200, a rectifier 300, a battery 400, a cooler 500 and a fan unit 600.

The digital subscriber processing board 10 receives ATM data through a high-speed communication line from a telephone company, converts it into xDSL subscriber traffic, and transmits the data to the subscriber through the splitter board 200, while the splitter board 200 is transmitted from the subscriber. When xDSL subscriber traffic is received through), it is converted into ATM data and transmitted to the telephone company. At this time, the digital subscriber processing board 10 includes a plurality of data processing boards and upper and lower shelves which are interfaced to a board connected to a high speed communication line from a telephone company and a board connected to the high speed communication line to perform data conversion. Each board is composed of interface boards.

In addition, the housing 100 is divided into a frame to the left, right and lower side, the left frame is mounted to the rectifier 300 in the upper end of the housing 100, as shown in Figure 3, the rectifier 300 The plurality of digital subscriber processing boards 10 are mounted on a lower side, and the fan unit 600 is mounted between the plurality of digital subscriber processing boards 10, and the lower portion of the digital subscriber processing boards 10 is mounted on the bottom of the digital subscriber processing boards 10. There is an empty space that facilitates the circulation of the air cooled from the cooler 500, the right frame to mount the plurality of splitter board 200 in a tower shape, the lower frame to mount the battery 400, As shown in FIG. 4, the first door 110 is mounted on the front surface, and the second door 120 is mounted on the right side, so that the digital subscriber processing board 10, the splitter board 200, It serves to mount the rectifier exchanger 300, the battery 400, the condenser 500 and the fan units (600). In this case, as shown in FIG. 5, the housing 100 additionally configures a power meter 700 displayed on an upper side of a right frame after measuring accumulated power of the DSLAM system and displaying it to an operator. The door 110 is further provided with a window 111 so that the power meter 700 is visible from the outside, and has properties of waterproof, moisture proof, corrosion, and bulletproof.

The plurality of splitter boards 200 are mounted on the right side of the inside of the housing 100 so as to face the right side, and are connected to the plurality of digital subscriber processing boards 10 through cables and simultaneously connected to the telephone company and subscribers. It serves to connect the telephone line of. At this time, as shown in Fig. 6, the plurality of terminal block type splitter boards 200 may include port terminals for connecting telephone lines of telephone companies, line terminals for connecting subscriber telephone lines, and the plurality of subscriber processing boards. It is composed of a plurality of splitter unit 210 having a data terminal connected through a cable, the splitter unit 210 receives the data of the digital subscriber processing board 10 and the voice signal of the telephone company through the telephone line While transmitting to the subscriber, the signal of the subscriber is separated into a voice signal and data and transmitted to the telephone company or the corresponding digital subscriber processing board 10, respectively. In addition, the plurality of splitter boards 200 is a terminal block type splitter board 200 for interfacing the telephone line of the subscriber and the telephone line of the telephone company and the telephone line of the plurality of subscribers and the plurality of telephone lines of the telephone company. The board type splitter board 200 shown in FIG. 7 that interfaces with each other may be dually applied.

In addition, the rectifier 300 receives the AC power (120 ~ 220V) from the outside to convert the DC power (-48V) to the plurality of digital subscriber processing board 10, the plurality of splitter board 200, the battery 400 serves to supply power.

The battery 400 receives and charges DC power from the rectifier 300, and when the AC power inputted from the outside to the rectifier 300 is stopped, the charged DC power is charged through the rectifier 300. It serves to supply.

In addition, the cooler 500 serves to cool the air in the housing 100 when the temperature inside the housing 100 rises.

In addition, the fan unit 600 is mounted between the plurality of digital subscriber processing boards 10 inside the housing 100 to supply air cooled through the cooler 500 to the plurality of digital subscriber processing boards 10. ) And serves to circulate evenly into the housing 100.

Next, the operation of the external DSLAM device in the xDSL system according to an embodiment of the present invention having the above configuration will be described with reference to FIGS. 1 to 7.

Referring to the process of providing the xDSL service to a remote subscriber by installing the present invention in the xDSL service unavailable area, first, the digital subscriber processing board 10 is connected to transmit and receive ATM data through a high-speed communication line.

Thereafter, when the digital subscriber processing board 10 receives the ATM data from the telephone company, the digital subscriber processing board 10 converts the ATM data into xDSL subscriber traffic and transmits it to the splitter board 200. At this time, when the xDSL subscriber traffic is received from the splitter board 200, it is converted into ATM data and transmitted to the telephone company via a high-speed communication line.

Then, when the subscriber in the xDSL out of service area wants to use the xDSL service, the telephone line between the telephone company and the subscriber in the xDSL out of service area is connected to the splitter board 200, respectively. That is, the second door 120 on the right side of the housing 100 is opened to connect the telephone line of the telephone company and the telephone line of the subscriber to the port terminal and the line terminal.

Then, it is connected with a data terminal for transmitting ATM data input from the telephone company through the high speed communication line, and at this time, the xDSL service is received through the splitter function. At this time, eight are connected to the digital subscriber processing board 10.

Then, as the telephone company, the apparatus, and the subscriber are all interfaced as described above, the downlink communication used by the subscriber in the xDSL out of service area is provided. In more detail, the digital subscriber processing board 10 receives ATM data through a high-speed communication line from a telephone company. At this time, the digital subscriber processing board 10 transmits and receives the ATM data received through the high speed communication line without loss.

Subsequently, the digital subscriber processing board 10 converts ATM data into xDSL subscriber traffic and transmits it to the splitter unit 210 in the splitter board 200.

At this time, when the splitter unit 210 receives the voice signal through the telephone line of the telephone company, the splitter unit 210 splits the ATM data and the voice signal and then transfers the voice signal and the xDSL subscriber traffic to the subscriber through the subscriber's telephone line. Transmit over the band.

On the other hand, during the operation of the external DSLAM device in the xDSL system according to an embodiment of the present invention, uplink communication using the xDSL service by the subscriber in the xDSL service disabled area will be omitted.

As described above, according to the external DSLAM device in the xDSL system according to the present invention, it is possible to install a plurality of subscribers in a random place outdoors in the xDSL out of service area by a distance environment, regardless of the distance and the external environment. Not only can it provide xDSL services, but it can also provide high quality xDSL services to more users.

Claims (5)

In the DSLAM system having a plurality of digital subscriber processing board for converting and interfacing the data transmission and reception of the telephone company and subscriber, The data of the plurality of digital subscriber processing boards and the voice signal of the telephone company to send to the subscriber via the telephone line, while the signal of the subscriber is separated into the voice signal and data transmitted to the telephone company or the corresponding digital subscriber processing board respectively Splitter boards; A rectifier for receiving AC power and converting the same into DC power to supply the plurality of digital subscriber processing boards and the plurality of splitter boards; A battery for supplying emergency power by charging the DC power of the rectifier; The rectifier and the plurality of digital subscriber processing boards are mounted in a self form on the left side of the inside, and the plurality of splitter boards are mounted on the right side of the inside with the front side facing the right side, and the battery is mounted on the bottom side, A housing having a rack structure in which a first door is installed and a second door is installed on a right side thereof; A cooler mounted on a rear surface of the housing to cool air in the housing; And External DSLAM device in the xDSL system, characterized in that consisting of a fan unit mounted on one side of the housing for circulating the cooled air. The method of claim 1, An external DSLAM device in an xDSL system, characterized in that the upper right side of the housing further comprises a power meter for measuring the integrated power of the DSLAM system and display to the operator. The method of claim 1, An external DSLAM device in an xDSL system, further comprising a window on the upper right side of the first door to allow the power meter to be viewed from the outside. The method of claim 1, The plurality of splitter boards may be integrated with a terminal block type splitter board for connecting a subscriber's telephone line and a telephone company's telephone line per unit or a telephone line of a plurality of subscribers and a telephone company's telephone line interfaced to the housing. An external DSLAM device in an xDSL system, characterized in that the splitter board is a board type to be connected. The method of claim 4, wherein The plurality of terminal block type splitter boards each have a port terminal connected to a telephone line of a telephone company, a line terminal connected to a telephone line of a subscriber, and a data terminal connected to a cable of the digital subscriber processing board. External DSLAM device in the xDSL system, characterized in that each consisting of a plurality of splitter units to perform.