KR960014306B1 - Service connection apparatus of facsimile - Google Patents

Abstract

The device includes a signal converting circuit pack(32) for converting a signal of subscriber circuit and telephone network contact device(31), a multiple facsimile line processing circuit pack(33) for receiving DTMF information, controlling facsimile communication, and performing a speech information and character/image converting function, a facsimile service processing circuit pack(34) for performing telephone network call process, maintenance service and so on, and a packet network contact circuit pack(35) for providing a X.25 call contact, data transmission and call cancellation signal.

Description

Facsimile Communication Service Interface

1 is a diagram illustrating a configuration of a facsimile communication service on a general subscriber line basis.

2 is an exemplary configuration of a facsimile communication processing service to which the present invention is applied.

3 is a block diagram of a facsimile communication service connection apparatus according to the present invention.

4 is a detailed configuration diagram of a telephone network connection device according to the present invention.

5 is a detailed block diagram of a signal conversion circuit pack according to the present invention.

6 is a detailed block diagram of a multi-facsimile line processing circuit pack according to the present invention.

7 is a detailed block diagram of a facsimile service processing circuit pack according to the present invention.

8 is a detailed block diagram of a packet network connection circuit pack according to the present invention.

9 is an example of a front-mounting configuration of a facsimile communication processing service connection device according to the present invention.

* Explanation of symbols for main parts of the drawings

31: telephone network connection device 32: signal conversion circuit pack

33: multiple facsimile line processing circuit pack 34: facsimile service processing circuit pack

35: packet network connection circuit pack 36: facsimile service circuit pack

37: data service device

The present invention provides access to information retrieval, information delivery, and mail services by accessing text or facsimile databases connected to public or private data networks, even if multiple facsimile device users connected to a general telephone network do not subscribe to a separate dedicated network. The present invention relates to a facsimile communication processing service connection device.

Figure 1 is a conventional general telephone network using a facsimile device to retrieve, deliver or mail text or facsimile information (picture information stored in facsimile code) (X. 400 X. 500 series services of the International Telegraph Telephone Advisory Board) A facsimile communication processing service).

The service provider secures a plurality of subscriber lines consisting of two wires or allocates them in the form of representative numbers, and then connects a number of facsimile counters corresponding to the user's facsimile devices to the system bus. The system bus is either a large host computer or a uniquely designed service processor with a small hard disk or large auxiliary storage. In this case, the auxiliary storage device for storing information is managed as a database, and a plurality of information providers are generally interfaced to a separate LAN (Local Area Network) for inputting information or a dedicated network (Ethernet, etc.) access device for data communication. .

In addition, the facsimile apparatus supports two-wire (ring and tip) telephone network connection circuits, such as facsimile modems and hybrid circuits, facsimile facsimile communication control procedures, facsimile encoding functions, character-facsimile information changing functions, and connection with a host. I am equipped with functions. In this method, the signal attenuation of about 7dB of the exchange period with the facsimile counterpart is inevitable by using the two-wire telephone network connection circuit, and due to the characteristics of the facsimile apparatus using the pixel-by-pixel encoding, it is a cause of error in the facsimile information during communication. Has disadvantages.

In other words, the above configuration has a disadvantage in that the service is performed by occupying the traffic of the existing telephone network, and there is a high possibility of continuing the call when the service is congested in a certain time period, and the additional circuit size of the facsimile counterpart is almost the same as the facsimile device. Have In addition, in this case, the subscriber line of the XYZ-ABCD number line to which the service center is connected, and the telephone line connected to the same exchange, the low-pass filter installed per subscriber line is not ideal, which causes the hazards of the telephone network in which noise such as crosstalk is introduced. This has a problem.

Therefore, the present invention has been made to solve the above problems, even if the user of a plurality of facsimile devices connected to a general telephone network does not subscribe to a separate dedicated network (Fax communication network of Korea Telecom, fax NTT of Japan NTT, etc.) Access information, delivery and mail services by accessing text or facsimile databases connected to HINET-P, Dacom's DNS, etc.) or facility data networks (bank online, travel agency online, etc.). Its purpose is to provide a device that can be used, and another objective is to expand the trunk line unit, which is different from the existing telephone network, and to establish a standard X. 25 line connection with the packet network. Facsimile communication service, a non-voice supplementary service, can be implemented on a large scale without disrupting traffic. Its purpose is to provide a means.

In order to achieve the above object, the present invention provides a signal conversion circuit pack connected to a telephone network connection device by a subhighway signal and a TD bus and converting a signal between a subscriber circuit and a telephone network connection device in an all-electronic switch, and the signal conversion circuit pack. Eight multi-facsimile line processing circuits connected to TTL level signals to receive facsimile users' DTMF information and control facsimile communication, while performing voice guidance and text / image conversion functions using font information and ADPCM voice guidance information. Telephone network call processing using a serial RS-232 connection to a connection control circuit pack embedded in the telephone network connection device via a system bus and a facsimile service back circuit pack. Control of the processing unit, communication with external system maintenance centers, billing and maintenance, A facsimile service processing circuit pack that performs symbol management of a security provider, stores Korean and English font information, stores voice information, and controls packet network access circuit packs. A system bus is connected to the multiple facsimile circuit processing circuit packs by a system bus. A packet network connection configured to provide a standard X.25 call connection, data transmission, and release signal to a packet network to the facsimile service processing circuit pack intended to be connected to the packet network by two data service devices. It is characterized by including a circuit pack.

Hereinafter, with reference to the accompanying drawings, also Figure 2 will be described in detail.

2 is a schematic diagram of a facsimile communication processing service to which the present invention is applied and is composed of an extension of a trunk line unit (1.544 MHz North American T1 trunk or 2.048 MHz European E1 trunk line) with an existing telephone network. By configuring the standard X.25 line connection of 64kbps, the service capacity can be large scale without disrupting the traffic of the existing telephone network.

3 is a configuration diagram of a facsimile communication processing device service connection device according to the present invention, 31 is a telephone network connection device, 32 is a signal conversion circuit pack, 33 is a multi-facsimile line processing circuit pack, 34 is a facsimile service processing circuit pack, 35 denotes a packet network access circuit pack, 36 denotes a facsimile service back circuit pack, and 37 denotes a data service unit (DSU).

As shown in the figure, the configuration of the facsimile communication processing device service connection device is as follows.

The telephone network connection device 31 is a digital relay line connection circuit pack, a network synchronizer and a switching circuit among the circuit packs used in the conventional electronic switchboard voice electronic switch as shown in FIG. 4 for the relay line function with the telephone network. A service call of a subscriber facsimile connected to a general telephone network along four connection paths with the device 30 in a combination of a circuit pack, a signal service circuit pack, a telephone network connection control circuit pack, an alarm collection and a back circuit pack on a TD bus. And associated control information.

That is, the service call of the subscriber facsimile is transferred to the higher level exchange according to the inter-station signaling system and procedure between the telephone network exchanges, which are connected to the telephone network connection device 31 through one T1 or E1 relay line.

The signal conversion circuit pack 32 uses a circuit pack of the same function to perform a signal conversion function between the subscriber circuit and the telephone network connection device 31 in the all-electronic switchboard for the preferred implementation. The encoder element and the buffer were modified to supply the circuit pack 32, which transmits the differential signal of the telephone network connection device 31 to the multiple facsimile circuit processing circuit pack 33, and the parity for detecting an error in data transmission. Performs a check function, a function of distributing a subhighway signal to a plurality of multiple facsimile line processing circuit packs 33, a function of detecting a main clock output from the telephone network connection device 31 and displaying the LED, and a redundant function of the TD bus. do.

The multi-facsimile line processing circuit pack 33 is connected to the signal conversion circuit pack 32 with signals of TTL level, so that the facsimile user receives DTMF information, the facsimile modem function, the control function of the multi-facsimile modem element, and the voice information. Sending function, converting character information into image information according to font data, facsimile encoding based on MH (Modified Huffman) or MR (Modified READ) code and method, CCITT T.30 Function to control facsimile communication according to the recommendation, and to initialize memory or interact with memory information of ADPCM (Adaptive Differential Pulse Coded Modulation) voice guidance information according to the service control of the facsimile service processing circuit pack 34 Do this.

The facsimile service processing circuit pack 34 is a system bus connected to the initial and function of the device, the multiple facsimile line processing circuit pack 33 and is embedded in the telephone network connection device 31 through the facsimile service back circuit pack 36. Telephone network call processing function using serial RS-232 connection with access control circuit pack, control function of multiple facsimile line processing unit, communication with system maintenance center in FIG. 2, billing and maintenance function, abbreviation of information provider It performs management functions, saves Korean and English font information, saves voice information and controls packet network access circuit packs. In addition, the service back circuit pack 36 provides an alarm signal to the telephone network connection device 31.

The packet network connection circuit pack 34 is composed of two circuit packs, and each circuit pack is a standard X for the packet network to the facsimile service processing circuit pack 33 that wants to connect to the packet network by two data bus devices 37. .25 It provides call connection, data transfer and call release functions.

This is done by a program for interacting with the network layer, data link layer, and facsimile service processing circuit packs of the standard X.25 protocol.

4 is a schematic diagram of a telephone network connection device, in which 41 is a digital triple line connection circuit pack, 42 is a network and switching circuit pack, 43 is a signal service circuit pack, 44 is a telephone network connection control circuit pack, and 45 is an alarm collection. The circuit pack 46 represents the telephone network connection back circuit pack, respectively.

As shown in the figure, the telephone network connection device 31 converts subscriber line information into a digital form between the general telephone network and the T1 or E1 relay line between the digital trunk line connection circuit pack 41 and the apparatus 30 of FIG. Occupied one channel of the sub-highway signal, receives the channel number and sub-highway information through the TD bus, and the network and switching circuit pack 42 responsible for the network and switching and the signal service circuit pack 43 for signal processing And a caller's telephone number are inputted to the apparatus 30 by the telephone network connection control circuit pack 44 on the TD bus via the asynchronous serial communication signaling means RS-232, and from the apparatus 30. An alarm signal such as a board hernia is input and an alarm collection circuit pack 45 present on the TD bus is connected to the telephone network connection back circuit pack 46 by the TD bus.

In the facsimile service processing circuit pack 33 of FIG. 3, the information can be used to perform a communication processing service for the subscriber facsimile device.

5 is a block diagram of a signal conversion circuit pack, in which 51 is an RS-422 / TTL level signal conversion element, 52 is a mode / address parity checking circuit, 53 is a timing circuit, 53 is a timing circuit, and 54 is a data parity. A confirmation circuit, 55 denotes a serial / parallel conversion circuit, 56 and 57 denotes a 3/9 encoder, and 58 denotes a buffer.

As shown in the figure, in the signal conversion circuit pack, the telephone network connection device 31 of FIG. 3 is connected to the sub highway signal and the TD bus signal and is connected to the multi-facsimile circuit processing circuit pack 33 by the TTL level sub highway signal. The RS-422 / TTL level signal conversion element 51 converts the 16-bit address information (0-15) serially output from the telephone network connection device 31 through the TD bus to convert the RS-422 / TTL level signal. It is input to the serial / parallel conversion circuit 55 via the connected mode / address parity check circuit 52, the timing circuit 53, and the data parity check circuit 54.

The address second signal is outputted to the multi-facsimile circuit processing circuit pack 33 through the buffer 58 with the information encoded by the input address 4 to 7 bits through the three to eight encoders 57. The information on the circuit line information indicates the number of the multiple facsimile line processing circuit packs 33.

The first address signal is information indicating how many of the multiple facsimile circuit packs 33 are connected to the facsimile modem and the corresponding circuit using addresses 0 to 2 bits.

The remaining bits of the address 0 ~ 15 bits are not used and will be used when expanding the circuit pack later. The mode signal is operation classification information such that the telephone network connection device 31 reads codec and circuit pack unique numbers on the multi-facsimile circuit processing circuit pack 33 or writes control information, and the TTL level is passed through the 3/8 encoder 56. The sub-highway signal is supplied with the general telephone network subscriber line information corresponding to 32 subscribers in a multiplexed form.

The timing circuit 53 provides a timing signal to the multiple facsimile line processing circuit pack 33 of FIG.

6 is a block diagram of a multi-facsimile circuit processing circuit pack, in which 61 is a signal conversion connection circuit, 62 is a system bus connection circuit, 63 is a development monitor, 64 is a dual port memory, 65 is a bus control circuit, and 66 is a Central control unit, 67 is program memory (ROM), 68 is program memory (RAM), 69 is data buffer, 70 is multifunction peripheral, 71-74 is PCM codec, 75-78 is facsimile modem element, 79-82 is Represents each DTMF decoder.

As shown in the figure, multiple facsimile modem elements 79 to 82 represent DTMF decoders, respectively.

As shown in the figure, the multi-facsimile line processing circuit pack includes a signal conversion circuit 6 consisting of a buffer between the signal conversion circuit pack 32 of FIG. 3 and a sub highway signal having a TTL level and a P2 connector of the system bus. Are supplied to four codecs and filter circuits 71 to 74 on each of the multiple facsimile line processing circuit packs.

The codec and filters 71 to 74 and the facsimile modem elements 75 to 78 are connected one to one and connected to the internal bus, and a corresponding circuit of four facsimiles is preferred in consideration of the maximum extension allowance per circuit pack. Will be constructed.

The internal bus is managed under the control of the central control unit 66. The program memory 67 uses 256K bytes using two 1M bit ROMs, and the program memory 68 uses S32K bytes using two 32K byte SRAMs. The buffer 69 and the dual port memory 64 constitute 8Mbytes using 18 4Mbit DRAMs (two for parity detection) to perform an interaction function with the facsimile service processing circuit pack.

Receipt of the DTMF signal by the facsimile user is made by the DTMF decoders 79-82 connected to the outputs of the PCM codecs 71-74, respectively, to detect this and generate an interrupt to the central processing unit 66. The facsimile modem function and guidance voice information sending function uses the functions embedded in the facsimile modem element and initializes it. The function of controlling the four facsimile modem elements and controlling them in accordance with the facsimile communication control procedure is program memory (ROM). Implemented by the program built in (67).

The program memory (SRAM) 68 is used as a stack area and a variable data area, and the data buffer and dual port memory are used as a space to move the guide voice information and font information at the start-up of the device in the facsimile service processing circuit pack. do. The development monitor 63 is connected to the system bus through the multifunction peripheral 70 through RS-232C. The system bus uses some compatible buses with Motorola's VME bus standard. The data transfer and interrupt functions using the P1 connector are compatible, and the P2 connector independently of the data bus part of the column B is used. It was used by definition. Table 1 shows the configuration of the connection signal between the multi-fax line processing circuit pack and the system bus. Here, signal B column 3 is a signal that loops back and outputs the ground signal to be the level of the dish signal at the time of mounting so that the hernia state can be detected.

Signals in columns A and C are signal lines communicating with the signal conversion circuit pack, and the subhighway signals DxO and DrO, the first address, the second address signal ADD, the mode signal MOD, and the TTL level of FIG. It consists of clock signals CLK and FS and unique number signals ID of a circuit pack.

7 is a block diagram of a facsimile service processing circuit pack, in which FIG. 91 is a central processing unit and a peripheral circuit, 92 is a program memory (ROM), 93 is a program memory (RAM), 94 is a Korean / English font memory, 95, Reference numeral 96 denotes a multifunction peripheral device, 97 a dual port memory, 98 a bus control circuit, 99 a system bus interface, 100 an interrupt control circuit and 101 and 102 RS-232C transmission / reception driving means.

As shown in the figure, the configuration and operation of the facsimile service processing circuit pack are as follows.

The central processing unit 91 uses a Motorola MC68030 processor as a preferred embodiment, the control circuit including the clock and peripheral circuits to control the internal bus, multi-function peripherals using the Motorola MC68901 (MFP; Multi Function Peripheral) 95 and 96 are connected to the telephone network connection device 31 and the development monitor of FIG. 3 via the driving elements 101 and 102 for converting the TTL level to the RS-232C level, respectively.

The program memory (ROM) 92 uses two 27C512) and the program memory (RAM) uses 128K byte and 16M byte capacity, respectively, using two 6256 SRAMs and 36 4M bit DRAMs. The control circuit 98 was added to configure the dual port memory 97, and the Korean and English font memories 94 were connected to the internal bus using a 4M bit mask PROM. Since this circuit pack becomes the master board of the system bus, the system bus interface circuit 99, an interrupt handler, and an interrupt generator circuit for driving the system bus are added. Most functions, such as the initialization of devices performed by this circuit pack, the telephone network call processing, and the control of the multi-facsimile line processing circuit pack 33, are stored in the program memory (ROM) 92 except for the information storage function. Is performed by.

The configuration of the connection signal with the system bus is shown in Table 2 below, where only the P1 connector is compatible with the VME bus specification and the P2 connector is different from the standard. Here, stripping information (OFF PNIA, OFF FLPA) of the circuit pack constituting the device is collected and used for maintenance processing, and general purpose status information (GP-ST: serial number of the device, etc.) is input. The hernia (OFF SPA) of this circuit pack is delivered to and processed by the alarm collection circuit pack 45 of the telephone network connection device shown in FIG.

FIG. 8 is a block diagram of a packet network connection circuit pack, in which 110 is a central processing unit and a peripheral circuit, 111 is a program memory (ROM), 112 is a program memory (RAM), 113 is a multifunctional peripheral device, and 114 is a dual port memory. 115 is a bus control circuit, 116 is a system bus interface, 117 is an interrupt control circuit, 118 is an RS-232C conversion means, 119 is a DMA control device, 120 is a FIFO, 121 is a serial communication control device (DUSCC). And 122 denote V.35 signal converting means, respectively.

As shown in the figure, in the packet network connection circuit pack, the central processing unit 110 for controlling the internal bus uses a Motorola MC68020 processor, and the 128K byte dual port memory 114 is connected to the internal bus via the bus control circuit 115. Connected to. In addition, a dual channel serial communication control device (DUSCC) 121 is used for channel access to the packet network, and a first in first out (FIFO) buffer 120 is used to improve performance. A direct memory access (DMA) control element 119 (DMAC) is used to manage communication data in a DMA manner. In addition, since two packet lines are connected to one circuit pack, a signal conversion element 122 for converting two channel signals into a V.35 connection standard is used to connect the output of the serial communication control element with the data service device.

The multifunctional peripheral device 113 is connected to the monitor for development via the driving device 118 for converting the TTL level to the RS-232C level.

Table 3 below shows the P2 connector connection signal configuration between the packet network connection circuit pack and the system bus, which includes two pairs of V.35 interface signals (TxD, RxD, clock and control information) for channel A and B Information, data signals of the system bus (D16 to 31), and power signals.

The data service unit (DSU) is responsible for demodulation and demodulation of digital information corresponding to the physical layer of a data-only network, and in a preferred embodiment, the data communication network is a 56Kbps-class line 4 by applying Hinet-P, a public packet network of Korean communication. The DSU is connected to four DSUs, and the DSU is connected through the packet network connection of this unit and 25-pin CCITT V.35 interface using the DSU-56L model of Venus Information Communications. Two lines per connection per packet Was used.

9 is an exemplary front-side mounting configuration of the facsimile communication processing service access device according to the present invention.

Therefore, the present invention as described above has the following effects.

First, since service calls of facsimile devices connected to a general telephone network are collected in the trunk unit at the nearest local exchange and flow into the apparatus, the facsimile communication processing service, which is a non-voice value-added service, can be performed without increasing the load on the existing telephone network.

Second, since a lossless communication path is formed between a facsimile device introduced in a trunk unit from a general telephone network and a device according to the present invention, a 7 dB (normal loss value between the exchange and subscriber lines) is higher than that of a 2-wire general subscriber line facsimile-compatible device. Signal-to-noise ratio (SNR) can be obtained to reduce information errors in the transmission of coded facsimile information.

Third, it is advantageous to increase the capacity of the system because a circuit necessary for a two-wire general telephone line connection is unnecessary among devices corresponding to the user's facsimile apparatus.

Yes, facsimile communication services are available for any database connected to a public or private packet network using the standard X.25 protocol.

Fifth, the facsimile machine does not need any additional device to perform communication processing service by operating DTMF signal (0 ~ 9, #, *) according to voice guidance or by operating the specified database type (using frequently used speed dial list). Available.

Sixth, since the information provider who owns the database usually does not have a national or international scale of the fee storage system using the database, the apparatus can store the fee.

Claims (5)

A signal conversion circuit pack 32 connected to a telephone network connection device 31 by a subhighway signal and a TD bus to convert a signal between a subscriber circuit and a telephone network connection device 31 in an electronic switchboard, and the signal conversion circuit pack 32. 8 facsimile multi-processing line processing to receive facsimile user's DTMF information and control facsimile communication while performing voice guidance and text / image conversion function using font information and ADPCM voice guidance information A serial bus circuit connected to the circuit pack 33 and the multiple facsimile circuit processing circuit pack 3 # by a system bus and embedded in the telephone network connection device 31 via a facsimile sub back circuit pack 36; Telephone network call processing using RS-232 connection, control of multiple facsimile line processing units, communication with external system maintenance centers, billing and maintenance, information provider A facsimile service processing circuit pack 34 for performing call management, storing Korean and English font information, storing voice information, and controlling packet network access circuit packs 34, which is connected to the multiple facsimile circuit processing circuit packs 33 by a system bus; Each circuit pack consists of two circuit packs, each of which has a standard X.25 call connection and data transmission for the packet network to the facsimile service processing circuit pack 33 to be connected to the packet network by two data service devices 37. And a packet connection circuit pack (35) for providing a call release signal. The signal conversion circuit pack of claim 1, further comprising: a; The telephone network connection device 31 is connected to the subhighway signal and the TD bus signal, and the multiple fax line processing circuit pack 33 is connected to the TTL level sub-hire signal so that the telephone network connection device 31 is serially connected through the TD bus. RS-422 / TTL level signal converting means 51 for converting the 16-bit address information (0 to 15) outputted by the RS-422 / TTL level signal converting signal to the RS-422 / TTL level signal converting means 51. Mode / address checking means 52 for receiving the converted address signal and outputting a mode / address parity confirmation signal, and receiving the converted address signal from the RS-422 / TTL level signal converting means 51 and receiving the mode / address. Timing means 53 for providing a timing signal from the address confirming means 52, the address signal connected to the RS-422 / TTL level signal converting means 51, and converted into the mode / address checking means 52. Connected to and get Data parity checking means 54 for receiving a timing signal from the dimming means 53 and outputting a data parity confirmation signal, and receiving a timing signal from the timing means 53 and receiving the timing signal from the mode / address parity checking means 52. A serial / parallel conversion means 55 for receiving a serial mode / address parity check signal and converting it into a parallel signal and outputting the same; and encoding and outputting addresses 4 to 7 bits inputted through the serial / parallel conversion means 55. Encoding information through a thirteen to eight encoder 57 and a thirteen to eight encoder 56 for encoding and outputting mode information inputted through the serial / parallel conversion means 55 and the thirteen to eight encoder 57; Addressing the bits 0 to 2 bits through the serial / parallel conversion means 55 and encoding information through the second 3 to 8 encoder 56 to transmit a mode signal to the multiple facsimile circuit processing circuit pack 33. First, second language And a buffering means (58) for outputting a dress. 3. The multi-facility line processing circuit pack (33) according to claim 1 or 2; The signal conversion circuit pack 32 receives a TTL level sub highway signal, a mode signal, and first and second address signals, buffers the sub highway signal and the address signal of the TTL level, and decodes and outputs the mode signal. A first means on each of the multiple facsimile line processing circuit packs connected on the system bus receiving the connection means 61, an address buffered through the signal conversion connection means 61, a subhighway signal having a TTL level, and a decoded MOS signal. A fourth to fourth PCM codec means 71 to 74 and a first to fourth PCM codec means 71 to 74 connected to an internal bus and to perform a facsimile modem function and an ADPCM voice codec function. ROM controlling the first to fourth facsimile modems 75 to 78 and the first to fourth facsimile modems 75 to 78 and controlling the multiplexing according to the facsimile communication control procedure. 67, a central controller 66 for controlling an internal bus according to a program in the ROM 67, a RAM 68 connected to the internal bus, used as a stack area and a variable data area, and a system bus A system bus connection means 62 connected to a system bus connection means for providing an automatic vector interrupt signal to an internal bus, the bus adjustment means 65 connected to a system bus through the internal bus and the system bus connection means 62, and the bus adjustment. A dual port memory 64 connected to the means 65 to interact with the facsimile service processing circuit pack 33, to the internal bus and to the outputs of the respective codecs and filtering means 71 to 74, respectively. And a DTMF decoder (79 to 82) for generating an interrupt to the central processing unit (66), and a data buffer (69) connected to the internal bus. Device. The facsimile service processing circuit pack 34 is connected to a telephone network connection control circuit pack inside the telephone network connection device 31 and an external development monitor by serial RS-232C to output transmission and reception information. And second and second RS-232C transmission and reception drive means (101, 102) connected to an internal bus by a multifunction peripheral device, a ROM having a program that is connected to an internal bus of a multi-controller according to a facsimile communication control procedure (92) ), A central control unit 91 for controlling an internal bus according to a program in the ROM 92, a RAM 93 connected to the internal bus and used as a stack area and a variable data area, and the internal bus. A dual port memory 97 connected to and connected through a bus control circuit 98, a Korean and English font memory 94 connected to the internal bus, a bus control circuit 98 and an internal bus, and a system bus. Driving And a system bus interface means (99) connected to the internal bus for interrupt control means (100) for controlling interrupts of the system bus interface means (99). . 2. The apparatus of claim 1, wherein: the packet network connection circuit pack (35); RS-232C conversion means 118 connected to the internal bus by a multi-function peripheral device connected to the development monitor by serial RS-232C and outputting transmission and reception information, and multiple control according to the facsimile communication control procedure connected to the internal bus. ROM 111 having a built-in program, a central controller 110 for controlling an internal bus according to a program in the ROM 111, a RAM connected to the internal bus and used as a stack area and a variable data area. 112, a dual port memory 114 connected to the internal bus and connected via a bus control circuit 115, a system bus interface means connected to the bus control circuit 115 and an internal bus to drive a system bus 116, an interrupt control means 117 connected to the internal bus and for controlling an interrupt of the system bus interface means 116, the two data service devices ( A signal conversion means 122 for converting two channel signals into a V.35 connection standard and a two-channel serial communication control means connected to the signal conversion means 122 for channel connection with a packet network ( DUSCC; Dual Universal Serial Communication Controller (DUSCC) 121, First In First Out (FIFO) buffer 120 connected to the serial communication control unit 121 for improving serial communication control capability, and the first-in first-out buffer ( And a DMA control means 119 (DMAC) for connecting to the internal bus and managing communication data in a direct memory access (DMA) manner. .