KR100308461B1 - Multiplex apparatus of high-concentrated structure in asymmetrical digital subscriber line system - Google Patents

Abstract

The present invention relates to a high aggregation multiplexing device in an asymmetric digital subscriber line system. In particular, a large number of ADSL modem subscribers efficiently use high-speed data services such as high-speed Internet access, LAN access, and VOD using existing telephone lines. The present invention relates to a multiplexing device having a high aggregation structure in an asymmetrical digital subscriber line system having a high capacity aggregation structure for providing a multiplicity structure. According to the multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to the present invention, a plurality of ADSL multiplexing blocks are provided. By converting ADSL subscriber data streams into ATM cells and multiplexing them to the DS-3 level and 2-stage level multiplexing from the ATM multiplexing block to the STM-1 level, it is possible to efficiently utilize the network transmission bandwidth of high-density and multiplexing devices of multiple ADSL subscribers. Each function module is independent Asymmetrical digital subscriber line system that enables the multiplexing of power of each multiplexed block by having DC / DC conversion device and the multiplexed block connection through unshielded twisted pair cable. It is an excellent effect to provide a multiplexing device of high aggregation structure.

Description

MULTIPLEX APPARATUS OF HIGH-CONCENTRATED STRUCTURE IN ASYMMETRICAL DIGITAL SUBSCRIBER LINE SYSTEM}

The present invention relates to a high aggregation multiplexing device in an asymmetric digital subscriber line system. In particular, a large number of ADSL modem subscribers efficiently use high-speed data services such as high-speed Internet access, LAN access, and VOD using existing telephone lines. The present invention relates to a multiplexing device of a high aggregation structure in an asymmetric digital subscriber line system having a high capacity aggregation structure for providing a network.

Conventional asymmetric digital subscriber line system has a problem that can not provide economical high-speed data service to a large number of ADSL subscribers because the efficient multiplexing is not performed.

In addition, there is a problem that power multiplexing is impossible because each functional module does not have an independent DC / DC converter.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to convert multiple ADSL subscriber data streams to an ATM cell in an ADSL multiplexed block, to multiplex to a DS-3 level, and to perform STM- in an ATM multiplexed block. Two-level multiplexing to one level enables efficient utilization of the network transmission bandwidth of multiple ADSL subscribers and economical high aggregation and multiplexing devices, and each functional module has an independent DC / DC converter to supply power to each multiplexing block. In order to provide multiplexing and to connect multiplexing blocks with an unshielded twisted pair cable, an asymmetrical digital subscriber line system that provides excellent scalability of a system can be provided with a high aggregation multiplexing device.

In order to achieve the above object, in the asymmetric digital subscriber line system of the present invention, the multiplexing device of the high aggregation structure converts traffic of a plurality of ADSL ports into ATM cells and multiplexes them into DS-3 (Digitial Signal level 3) frames, or A plurality of ADSL multiplexing blocks to multiplex; The DS-3 frame multiplexed in the ADSL multiplexed block is inputted through an unshielded twisted pair cable (Unshielded Twisted Pair cable) and multiplexed to the STM-1 (Synchronous Transfer Module level-1) level. It is characterized by.

1 is a functional block diagram illustrating a configuration of a multiplexing device having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention;

2 is a functional block diagram illustrating a configuration of an ADSL multiplexing block in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention;

3 is a functional block diagram illustrating a configuration of an ATM multiplexing block in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention;

4 is a functional block diagram illustrating a configuration of a DS-3 multiplexing module in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention;

5 is a functional block diagram illustrating a configuration of an ADSL multiplexing module in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention;

6 is a functional block diagram illustrating a configuration of an ADSL multiplexing block control module in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention;

7 is a functional block diagram illustrating a configuration of a cell bus clock module in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention;

8 is a functional block diagram illustrating a configuration of an ATM cell bus module in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention;

9 is a functional block diagram illustrating a configuration of an STM-1 multiplexing module in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention.

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

1000: ADSL multiplexed block

1100: DS-3 Multiplexing Module

1110: ATM cell bus interface unit

1120: DS-3 UNI Unit

1130: control unit

1140: Sequential Interface Unit

1150: DC / DC conversion unit

1200: DS-3 Transceiver Module

1300: ADSL multiplexing module

1310: ATM cell bus interface unit

1320: ATM mux unit

1330: ATM handler unit

1340: ADSL Modem Unit

1350: control unit

1360: Sequential Interface Unit

1370: DC / DC conversion unit

1400: Multiport Split Module

1500: ADSL Multiplexed Block Control Module

1510: control unit

1520: Sequential Interface Unit

1530: ATM cell bus interface unit

1540: internal module monitoring unit

1550: external module monitoring unit

1600: Ethernet Transceiver Module

1700: Cell Bus Clock Module

1710: read clock supply unit

1720: write clock supply unit

1730 DC / DC conversion unit

1800: ATM Cell Bus Module

1810: ATM bus

1820: local bus

1830: analog bus

1840 power supply line

2000: ATM Multiplexing Block

2100: DS-3 Interface Module

2200: DS-3 Transceiver Module

2300: STM-1 Multiplexing Module

2310: ATM cell bus interface unit

2320: UPC / OAM Unit

2330: STM-1 UNI Unit

2340: control unit

2350: Sequential Interface Unit

2360: synchronization signal generating unit

2370: DC / DC conversion unit

2400: STM-1 Transceiver Module

2500: ATM Multiplex Block Control Module

2600: Ethernet Transceiver Module

2700: Cell Bus Clock Module

2800: ATM Cell Bus Module

Hereinafter, a multiplexing device having a high aggregation structure in an asymmetric digital subscriber line system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a functional block diagram showing a configuration of a multiplexing device having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention, and shows a configuration of a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention. The multiplexing device is composed of a plurality of ADSL multiplexing blocks 1000 and ATM multiplexing blocks 2000.

The ADSL multiplexing block 1000 converts traffic of a plurality of ADSL ports into ATM cells and multiplexes or demultiplexes them into a digital signal level 3 (DS-3) frame.

Meanwhile, the ATM multiplexing block 2000 receives a DS-3 frame multiplexed by the ADSL multiplexing block 1000 through an unshielded twisted pair cable (STM-1). Multiplex or demultiplex into levels.

FIG. 2 is a functional block diagram showing the configuration of an ADSL multiplexing block 1000 in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention, wherein the ADSL multiplexing block 1000 is a DS-3. Multiplexing Module 1100, DS-3 Transceiver Module 1200, Multiple ADSL Multiplexing Module 1300, Multiple Multiple Port Split Module 1400, ADSL Multiplexing Block Control Module 1500, Ethernet Transceiver Module 1600 And a cell bus clock module 1700 and an ATM cell bus module 1800.

The DS-3 multiplexing module 1100 mounted in the ADSL multiplexing block 1000 multiplexes input ATM cell traffic into a DS-3 frame and outputs it as a serial electric signal, or within a DS-3 frame received as a serial electric signal. Demultiplexes ATM cells.

On the other hand, the DS-3 transceiver module 1200 mounted in the ADSL multiplexing block 1000 transmits a serial electrical signal received from the DS-3 multiplexing module 1100 to an unshielded twisted pair cable, the unshielded twisted pair cable It converts the received signal into a serial electrical signal and transmits it to the DS-3 multiplexing module 1100.

In addition, the plurality of ADSL multiplexing modules 1300 mounted in the ADSL multiplexing block 1000 serve to multiplex and demultiplex the input ADSL modulated data streams into ATM cell data.

Meanwhile, the plurality of multiport split modules 1400 mounted in the ADSL multiplexing block 1000 may perform frequency division multiplexing of an ADSL modulated data stream transmitted from the ADSL multiplexing module 1300 and an analog telephone signal from a PSTN switch. It plays a role of filtering.

In addition, the ADSL multiplexing block control module 1500 mounted in the ADSL multiplexing block 1000 monitors the performance of all functional modules in the ADSL multiplexing block 1000, detects defects and failures, protects the system, and fails. It transmits information and performance report information and plays a role in performing the test function of the trouble spot.

On the other hand, the Ethernet transceiver module 1600 mounted in the ADSL multiplexing block 1000 is an Ethernet for transmitting management information through an Ethernet LAN between the ADSL multiplexing block control module 1500 and an operation management system of an ADSL multiplexing device. It is responsible for generating electrical signals for transmitting flame data over a 10BaseT Ethernet cable.

In addition, the cell bus clock module 1700 mounted in the ADSL multiplexing block 1000 clocks each module for a read / write operation between all functional modules in the ADSL multiplexing block 1000. It serves to supply the signal.

Meanwhile, the ATM cell bus module 1800 mounted in the ADSL multiplexing block 1000 provides a path for transmitting ATM cell data and control signals between the functional modules, and provides a transmission path for board detachment and reference clock transmission. It provides an analog transmission path for ADSL modulated signal transmission and provides a -48Vdc power supply path.

3 is a functional block diagram illustrating a configuration of an ATM multiplexing block 2000 in a multiplexing apparatus having a high aggregation structure in an asymmetrical digital subscriber line system according to an embodiment of the present invention, and includes a DS-3 interface module 2100 and a DS. -3 transceiver module 2200, STM-1 multiplexing module 2300, STM-1 transceiver module 2400, ATM multiplexing block control module 2500, Ethernet transceiver module 2600, cell bus clock module 2700, It consists of an ATM cell bus module 2800.

The DS-3 interface module 2100 mounted in the ATM multiplexing block 2000 multiplexes the input ATM cell traffic into a DS-3 frame and outputs the serial electrical signal, or within the DS-3 frame received as the serial electrical signal. Demultiplexes ATM cells.

Meanwhile, the DS-3 transceiver module 2200 mounted in the ATM multiplexing block 2000 transmits a serial electric signal received from the DS-3 interface module 2100 to an unshielded twisted pair cable, and the unshielded twisted pair cable Converts the received signal into a serial electrical signal and transmits it to the DS-3 interface module 2100.

In addition, the STM-1 multiplexing module 2300 mounted in the ATM multiplexing block 2000 multiplexes the input ATM cell traffic to the STM-1 level and outputs the serial electrical signal or the STM-1 received as the serial electrical signal. It demultiplexes ATM cells in a frame.

Meanwhile, the STM-1 transceiver module 2400 mounted in the ATM multiplexing block 2000 converts the serial electrical signal received from the STM-1 multiplexing module 2300 into an optical signal and transmits the optical signal to an optical cable of an ATM network. And, it converts the optical signal received from the optical cable of the ATM network to a serial electrical signal and serves to transmit to the STM-1 multiplexing module 2300.

In addition, the ATM multiplexing block control module 2500 mounted in the ATM multiplexing block 2000 monitors the performance of all functional modules in the ATM multiplexing block 2000, detects faults and failures, protects the system, and fails. It transmits information and performance report information and plays a role in performing the test function of the trouble spot.

On the other hand, the Ethernet transceiver module 2600 mounted in the ATM multiplexing block 2000 is an Ethernet for transmitting management information through an Ethernet LAN between the ATM multiplexing block control module 2500 and an operation management system of an ADSL multiplexing device. It is responsible for generating electrical signals for transmitting flame data over a 10BaseT Ethernet cable.

In addition, the cell bus clock module 2700 mounted in the ATM multiplexing block 2000 clocks each module for read / write operations among all functional modules in the ATM multiplexing block 2000. It serves to supply the signal.

Meanwhile, the ATM cell bus module 2800 mounted in the ATM multiplexing block 2000 provides a path for transmitting ATM cell data and control signals between the functional modules, and provides a transmission path for board detachment and reference clock transmission. It provides an analog transmission path for ADSL modulated signal transmission and provides a -48Vdc power supply path.

4 is a functional block diagram illustrating a configuration of the DS-3 multiplexing module 1100 in the multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention. Is composed of an ATM cell bus interface unit 1110, a DS-3 UNI unit 1120, a control unit 1130, a sequential interface unit 1140, and a DC / DC conversion unit 1150.

The ATM cell bus interface unit 1110 mounted in the DS-3 multiplexing module 1100 performs switching of data and control cells with the plurality of ADSL multiplexing modules 1300 through the ATM cell bus module 1800. To this end, it converts ATM cell headers, manages / controls traffic, performs routing functions of OAM and RM cells, and inputs / outputs control cells through data and control buses.

Meanwhile, the DS-3 UNI unit 1120 mounted in the DS-3 multiplexing module 1100 receives information from a data and control bus, configures a DS-3 frame, outputs a serial electric signal, or performs the reverse function. It also plays a role in cell deliniation and clock restoration.

In addition, the control unit 1130 mounted in the DS-3 multiplexing module 1100 performs initialization and control functions of each functional unit in the DS-3 multiplexing module 1100, and collects status information, statistics, and configuration management. It collects fault and alarm information and outputs it to data and control bus.

Meanwhile, the sequential interface unit 1140 mounted in the DS-3 multiplexing module 1100 serves to debug the DS-3 multiplexing module 1100.

In addition, the DC / DC conversion unit 1150 mounted in the DS-3 multiplexing module 1100 may operate in the DS-3 multiplexing module 1100 from the -48Vdc power received in the power path of the ATM cell bus module 1800. It is responsible for generating and supplying stable DC power required to drive each functional unit.

FIG. 5 is a functional block diagram showing the configuration of the ADSL multiplexing module 1300 in a high aggregation multiplexing device in an asymmetric digital subscriber line system according to an embodiment of the present invention, wherein the ADSL multiplexing module 1300 is an ATM cell bus. Consists of interface unit 1310, ATM mux unit 1320, ATM handler unit 1330, ADSL modem unit 1340, control unit 1350, sequential interface unit 1360, DC / DC conversion unit 1370 It is.

The ATM cell bus interface unit 1310 mounted in the ADSL multiplexing module 1300 is configured to switch data and control cells with the plurality of ADSL multiplexing modules 1300 through the ATM cell bus module 1800. It converts ATM cell headers, manages / controls traffic, performs routing functions of OAM and RM cells, and inputs / outputs control cells through data and control buses.

Meanwhile, the ATM mux unit 1320 installed in the ADSL multiplexing module 1300 performs a function of multiplexing and demultiplexing by inputting / outputting ATM cells through a data and control bus.

In addition, the ATM handler unit 1330 mounted in the ADSL multiplexing module 1300 receives an ATM cell from the ATM mux unit 1320 through a UTOPIA-1 interface to perform an idle cell filter function. It then transfers data to the data and control bus in bytes or performs the reverse function.

On the other hand, the ADSL modem unit 1340 mounted in the ADSL multiplexing module 1300 receives data in bytes from the ATM handler unit 1330 through a data and control bus to configure an ADSL superframe to configure, After performing the digital / analog conversion function, it transmits the ADSL modulated signal through the line driver or vice versa.

In addition, the control unit 1350 mounted in the ADSL multiplexing module 1300 performs initialization and control functions of each functional unit in the ADSL multiplexing module 1300, and collects status information, statistics, configuration management, faults, and alarms. It collects information and outputs it to the data and control buses.

On the other hand, the sequential interface unit 1360 mounted in the ADSL multiplexing module 1300 serves to debug the ADSL multiplexing module 1300.

In addition, the DC / DC conversion unit 1370 mounted in the ADSL multiplexing module 1300 drives each functional unit in the ADSL multiplexing module 1300 from the -48Vdc power received in the power path of the ATM cell bus module 1800. It generates and supplies stable DC power required for the system.

FIG. 6 is a functional block diagram illustrating an ADSL multiplexing block control module 1500 in a high aggregation multiplexing device in an asymmetric digital subscriber line system according to an embodiment of the present invention. The control unit 1510 is a sequential interface. A unit 1520, an ATM cell bus interface unit 1530, an internal module monitoring unit 1540, an external module monitoring unit 1550, and a DC / DC conversion unit 1560.

The control unit 1510 mounted in the ADSL multiplexed block control module 1500 performs initialization and control functions of each functional unit in the ADSL multiplexed block control module 1500, and collects status information, statistics, configuration management, and faults. And collect alarm information and output it to a data and control bus.

On the other hand, the sequential interface unit 1520 mounted in the ADSL multiplexed block control module 1500 serves to debug the ADSL multiplexed block control module 1500.

In addition, the ATM cell bus interface unit 1530 mounted in the ADSL multiplexing block control module 1500 is configured to switch data and control cells with the plurality of ADSL multiplexing modules 1300 through the ATM cell bus module. It converts ATM cell headers, manages / controls traffic, performs routing functions of OAM and RM cells, and inputs / outputs control cells through data and control buses.

On the other hand, the internal module monitoring unit 1540 mounted in the ADSL multiplexed block control module 1500 serves to monitor the state of each unit in the ADSL multiplexed block control module 1500.

In addition, the external module monitoring unit 1550 mounted in the ADSL multiplexing block control module 1500 monitors the detachment or mounting state and operation state of external major device modules that are not directly mounted to the ATM cell bus module, and the like. It informs the control unit via the control bus.

Meanwhile, the DC / DC conversion unit 1560 mounted in the ADSL multiplexing block control module 1500 may be configured in the ADSL multiplexing block control module 1500 from a -48Vdc power source received in the power path of the ATM cell bus module 1800. It is responsible for generating and supplying stable DC power required to drive each functional unit.

FIG. 7 is a functional block diagram illustrating a configuration of a cell bus clock module 1700 in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention, wherein the cell bus clock module 1700 is read. A clock supply unit 1710, a write clock supply unit 1720, and a DC / DC conversion unit 1730 are constituted.

The read clock supply unit 1710 mounted in the cell bus clock module 1700 generates an ATM cell bus read clock.

Meanwhile, the write clock supply unit 1720 installed in the cell bus clock module 1700 generates an ATM cell bus write clock.

In addition, the DC / DC conversion unit 1730 mounted in the cell bus clock module 1700 is adapted to drive each functional unit in the cell bus clock module 1700 from the -48 Vdc power received in the power path of the ATM cell bus module. It generates and supplies the required stable DC power.

FIG. 8 is a functional block diagram showing the configuration of an ATM cell bus module 1800 in a multiplexing apparatus having a high aggregation structure in an asymmetric digital subscriber line system according to an embodiment of the present invention, wherein the ATM cell bus module 1800 is an ATM. A bus 1810, a local bus 1820, an analog bus 1830, and a power supply line 1840 are formed.

The ATM bus 1810 mounted in the ATM cell bus module 1800 provides a path for transmitting ATM cells and control signals between functional modules, and is a non-blocking TDM bus as a mux / demux of an ATM cell. It performs the function and performs the bus arbitration in the round-robin manner with priority.

Meanwhile, the local bus 1820 mounted in the ATM cell bus module 1800 serves as a path for providing disconnection information and a reference clock of each function module.

In addition, the analog bus 1830 mounted in the ATM cell bus module 1800 serves to provide a transmission path for ADSL modulated signals.

On the other hand, the power supply line 1840 mounted in the ATM cell bus module 1800 serves to provide a passage for transferring -48Vdc power from the power supply to each functional module.

9 is a functional block diagram showing the configuration of the STM-1 multiplexing module 2300 in the multiplexing apparatus of the high aggregation structure in the asymmetric digital subscriber line system according to an embodiment of the present invention, the STM-1 multiplexing module 2300 ATM cell bus interface unit 2310, UPC / OAM unit 2320, STM-1 UNI unit 2330, control unit 2340, sequential interface unit 2350, synchronization signal generation unit 2360, DC / It consists of the DC conversion unit 2370.

The ATM cell bus interface unit 2310 mounted in the STM-1 multiplexing module 2300 is configured to switch the ATM multiplexing block 2000 and data and control cells through the ATM cell bus module 2800. It converts cell headers, manages / controls traffic, performs routing functions of OAM and RM cells, and inputs / outputs control cells through data and control buses.

Meanwhile, the UPC / OAM unit 2320 installed in the STM-1 multiplexing module 2300 monitors whether ATM connections of all ADSL users in the multiplexing device violate the negotiated traffic parameters and processes the OAM cell. Do it.

In addition, the STM-1 UNI unit 2330 mounted in the STM-1 multiplexing module 2300 receives information from a data and control bus, configures an STM-1 frame, outputs a serial electrical signal, or performs the reverse function. It also plays a role in cell deliniation and clock restoration.

On the other hand, the control unit 2340 mounted in the STM-1 multiplexing module 2300 performs initialization and control functions of each functional unit in the STM-1 multiplexing module 2300, and collects status information, statistics, and configuration management. It collects fault and alarm information and outputs it to data and control bus.

In addition, the sequential interface unit 2350 mounted in the STM-1 multiplexing module 2300 serves to debug the STM-1 multiplexing module 2300.

Meanwhile, the synchronization signal generation unit 2360 mounted in the STM-1 multiplexing module 2300 generates the E-1 and STM-1 synchronization clocks of the STM level multiplexing block 2000 (ATM multiplexing block).

In addition, the DC / DC conversion unit 2370 mounted in the STM-1 multiplexing module 2300 is required to drive each functional unit in the STM-1 multiplexing module from -48Vdc power received in the power path of the ATM cell bus module. It generates and supplies stable DC power.

As described above, according to the multiplexing apparatus of the high aggregation structure in the asymmetrical digital subscriber line system according to the present invention, in the ADSL multiplexing block, the multiple ADSL subscriber data streams are converted into an ATM cell and multiplexed to the DS-3 level, and the STM- in the ATM multiplexing block. Two-level multiplexing to one level enables efficient utilization of the network transmission bandwidth of multiple ADSL subscribers and economical high aggregation and multiplexing devices, and each functional module has an independent DC / DC converter to supply power to each multiplexing block. Multiplexing is possible, and unshielded twisted pair cable enables multiple inter-block connections so that the system provides excellent scalability in an asymmetric digital subscriber line system that provides excellent scalability. have.

Claims (9)

A plurality of ADSL multiplexing blocks for converting traffic of a plurality of ADSL ports into ATM cells and multiplexing or demultiplexing into DS-3 (Digitial Signal level 3) frames; The DS-3 frame multiplexed in the ADSL multiplexed block is inputted through an unshielded twisted pair cable (Unshielded Twisted Pair cable) and multiplexed to the STM-1 (Synchronous Transfer Module level-1) level. A high aggregation structure multiplexing device in an asymmetric digital subscriber line system, characterized in that. The method of claim 1, The plurality of ADSL multiplexing blocks may multiplex input ATM cell traffic into a DS-3 frame and output a serial electric signal, or demultiplex the ATM cells in a DS-3 frame received as a serial electric signal. and; DS-3 transceiver module for transmitting the serial electrical signal received from the DS-3 multiplexing module to the unshielded twisted-pair cable, converts the signal received from the unshielded twisted-pair cable into a serial electrical signal and transmits it to the DS-3 multiplexing module and; A plurality of ADSL multiplexing modules for multiplexing and demultiplexing a plurality of input ADSL modulated data streams into ATM cell data; A plurality of multiport split modules for frequency division multiplexing and filtering the ADSL modulated data stream delivered from said ADSL multiplexing module and analog telephone signals from a PSTN switch; An ADSL multiplexing block control module that monitors the performance of all functional modules in the ADSL multiplexing block, detects defects and failures, protects the system, transmits fault information and performance report information, and performs a test function of the fault location; Ethernet transceiver for generating an electrical signal for transmitting Ethernet frame data through a 10BaseT Ethernet cable for transmission of management information between the ADSL multiplexed block control module and the operation management system of the ADSL multiplexer through an Ethernet LAN A module; A cell bus clock module for supplying a clock signal to each module for read / write operations among all functional modules in the ADSL multiplexing block; It provides a path for transmitting ATM cell data and control signals between the functional modules, provides a transmission path for board hermetic and reference clock transmission, provides an analog transmission path for transmitting ADSL modulated signals, and provides a -48Vdc power supply path. Multiplexing apparatus of high aggregation structure in an asymmetric digital subscriber line system, characterized in that consisting of ATM cellbus module providing. The method of claim 1, The ATM multiplexing block includes: a DS-3 interface module which multiplexes input ATM cell traffic into a DS-3 frame and outputs the serial electrical signal, or demultiplexes the ATM cells in the DS-3 frame received as the serial electrical signal; DS-3 transceiver module for transmitting the serial electrical signal received from the DS-3 interface module to the unshielded twisted pair cable, converts the signal received from the unshielded twisted pair cable into a serial electrical signal and transmits the signal to the DS-3 interface module and; An STM-1 multiplexing module for multiplexing the input ATM cell traffics to an STM-1 level and outputting them as serial electric signals or demultiplexing ATM cells in an STM-1 frame received as serial electric signals; STM-1 multiplexing module converts the serial electrical signal received from the STM-1 multiplexing module into an optical signal and transmits it to the optical cable of the ATM network, and converts the optical signal received from the optical cable of the ATM network into a serial electrical signal STM-1 transceiver module for transmitting to; An ATM multiplexing block control module that monitors the performance of all functional modules in the ATM multiplexing block, detects faults and failures, protects the system, transmits fault information and performance report information, and performs a test function of the fault location; Ethernet transceiver for generating an electrical signal for transmitting Ethernet frame data through a 10BaseT Ethernet cable for transmitting management information between the ATM multiplexing block control module and the operation management system of the ADSL multiplexer through an Ethernet LAN. A module; A cell bus clock module for supplying a clock signal to each module for read / write operations among all functional modules in the ATM multiplexing block; It provides a path for transmitting ATM cell data and control signals between the functional modules, provides a transmission path for board hermetic and reference clock transmission, provides an analog transmission path for transmitting ADSL modulated signals, and provides a -48Vdc power supply path. Multiplexing apparatus of high aggregation structure in an asymmetric digital subscriber line system, characterized in that consisting of ATM cellbus module providing. The method of claim 2, The DS-3 multiplexing module, via the ATM cell bus module, converts an ATM cell header, manages / controls traffic, OAM and RM for switching of the plurality of ADSL multiplexing modules and data and control cells. An ATM cell bus interface unit which performs a routing function of a cell and inputs / outputs a control cell through a data and control bus; A DS-3 UNI unit configured to receive information from a data and control bus, construct a DS-3 frame, output the serial electrical signal, or perform a reverse function thereof, and perform cell deliniation and clock reconstruction; A control unit that performs initialization and control of each functional unit in the DS-3 multiplexing module, collects state information and collects statistics, configuration management, faults and alarm information, and outputs them to a data and control bus; A sequential interface unit for debugging the DS-3 multiplexing module; An asymmetric digital subscriber unit comprising a DC / DC conversion unit for generating and supplying stable DC power required to drive each functional unit in a DS-3 multiplexing module from a -48Vdc power source received in a power path of the ATM cell bus module Multiplexing device of high aggregation structure in line system. The method of claim 2, The plurality of ADSL multiplexing modules, via the ATM cell bus module, convert ATM cell headers, manage / control traffic, OAM and RM for switching of the plurality of ADSL multiplexing modules and data and control cells. An ATM cell bus interface unit which performs a routing function of a cell and inputs / outputs a control cell through a data and control bus; An ATM mux unit for inputting / outputting ATM cells through a data and control bus to perform multiplexing and demultiplexing functions; An ATM handler unit which receives an ATM cell from the ATM mux unit through a UTOPIA-1 interface, performs an idle cell filter function, and transmits the data in a byte unit to a data and control bus or performs the reverse function; Receive byte data from the ATM handler unit via data and control bus to configure ADSL superframe to perform modulation, digital / analog switching, and then send ADSL modulated signal through line driver or vice versa An ADSL modem unit for performing; A control unit which performs initialization and control of each functional unit in the ADSL multiplexing module, collects state information and collects statistics, configuration management, faults and alarm information, and outputs them to a data and control bus; A sequential interface unit for debugging the ADSL multiplexing module; An asymmetric digital subscriber line system comprising a DC / DC conversion unit for generating and supplying a stable DC power required to drive each functional unit in an ADSL multiplexing module from a -48Vdc power source received in a power path of the ATM cell bus module Multiplexing device of high-concentration structure. The method of claim 2, The ADSL multiplexing block control module performs initialization and control of each functional unit in the ADSL multiplexing block control module, collects state information and collects statistics, configuration management, faults and alarm information, and outputs them to a data and control bus. A control unit; A sequential interface unit for debugging the ADSL multiplex block control module; Via the ATM cell bus module, convert ATM cell headers, manage / control traffic, perform OAM and RM cell routing functions, for switching the plurality of ADSL multiplexing modules and data and control cells; An ATM cell bus interface unit for inputting / outputting a control cell through a data and control bus; An internal module monitoring unit for monitoring the state of each unit in the ADSL multiplexing block control module; An external module monitoring unit which monitors a state of mounting or mounting of external main device modules not directly mounted to the ATM cell bus module, an operation state, and the like and notifies the control unit through a data and control bus; An asymmetric digital subscriber unit comprising a DC / DC conversion unit for generating and supplying stable DC power required to drive each functional unit in an ADSL multiplexing block control module from a -48Vdc power source received in a power path of the ATM cell bus module Multiplexing device of high aggregation structure in line system. The method of claim 2, The cell bus clock module includes: a read clock supply unit for generating an ATM cell bus read clock; A write clock supply unit for generating an ATM cell bus write clock; An asymmetric digital subscriber line comprising a DC / DC conversion unit for generating and supplying stable DC power required to drive each functional unit in a cell bus clock module from a -48Vdc power source received in the power path of the ATM cell bus module Multiplexing device of high aggregation structure in system. The method of claim 2, The ATM cell bus module provides a path for transmitting ATM cells and control signals between respective functional modules, performs a mux / demux function of an ATM cell as a non-blocking TDM bus, and has a priority round. An ATM bus for robin bus arbitration; A local bus, which is a path for providing a disconnection information and a reference clock of each functional module; An analog bus providing a transmission path for ADSL modulated signals; A high-concentration multiplexing device in an asymmetric digital subscriber line system comprising a power supply line providing a path for delivering -48 Vdc power from a power supply to each functional module. The method of claim 3, wherein The STM-1 multiplexing module converts an ATM cell header, manages / controls traffic, and routes OAM and RM cells through the ATM cell bus module for switching between the ATM multiplexing block and data and control cells. An ATM cell bus interface unit for performing input / output of a control cell through a data and control bus; A UPC / OAM unit that monitors whether ATM connections of all ADSL users in the multiplexing device violate the negotiated traffic parameters and handles the OAM cell; An STM-1 UNI unit configured to receive information from a data and control bus, construct an STM-1 frame, output the serial electrical signal, or perform a reverse function, and perform cell deliniation and clock reconstruction; A control unit which performs initialization and control of each functional unit in the STM-1 multiplexing module, collects state information and collects statistics, configuration management, faults and alarm information, and outputs them to a data and control bus; A sequential interface unit for debugging the STM-1 multiplexing module; A synchronization signal generation unit for generating E-1 and STM-1 synchronization clocks of the STM level multiplexing block; An asymmetric digital subscriber comprising a DC / DC conversion unit for generating and supplying a stable DC power required to drive each functional unit in the STM-1 multiplexing module from the -48Vdc power received in the power path of the ATM cell bus module Multiplexing device of high aggregation structure in line system.