KR100217348B1 - Isdn primary rate access interfacing device in communication processing system - Google Patents

Abstract

The present invention relates to a communication processing system, and more particularly, to an ISDN primary group speed interface matching device in a communication processing system capable of providing various information to ISDN subscribers by matching an integrated services digital network (ISDN) primary group speed interface.

In the conventional communication processing system, the general subscriber using the modem, that is, the personal computer users, is configured to provide necessary information, but the ISDN subscribers are not provided because of the lack of a matching device for ISDN access. There is a problem that can not provide information.

Since the present invention efficiently matches the ISDN primary group speed interface, it can provide various information to ISDN subscribers when interworking with a packet network matching device or an internet matching device.

Description

ISDN Primary Group Speed Interface Matching Device in Communication Processing System

The present invention relates to a communication processing system, and more particularly, to an ISDN primary group speed interface matching device in a communication processing system for providing various information to ISDN subscribers by matching an integrated services digital network (ISDN) primary group speed interface. .

In general, in order for a subscriber to send and receive various information other than voice service, the subscriber must be matched to the network.

As described above, a conventional mass communication processing system for providing a communication service by matching subscribers includes a telephone network matching module (TNAS), a packet network matching module (PNAS), a service support module (OAM), and a high speed interconnection module as shown in FIG. (HSSF). When a signal applied from a public switched telephone network (PSTN) through a digital trunk line is relayed to a telephone network matching module (TNAS) via a T1 / E1 line, the signal occupies a channel inside the telephone network matching module (TNAS). The modem corresponding to the channel is operated to transmit the signal to the high speed interconnect module (HSSF). At this time, the high speed interconnection module (HSSF) transmits the signal to the packet network matching module (PNAS) side, and the packet network matching module (PNAS) connects the signal to the information providing computer of the PSDN (Public Swiched Data Network) to connect the PSTN. Information to its subscribers.

In the conventional communication processing system as described above, only the general subscriber using the modem, that is, the personal computer users, is configured to provide necessary information, but the ISDN subscriber is due to the lack of a matching device for ISDN access. There is a problem that can not provide a variety of information.

An object of the present invention is to provide an ISDN primary group speed interface matching device in a communication processing system capable of providing various information to ISDN subscribers by matching the ISDN primary group speed interface. There is this.

A feature of the present invention for achieving the above object is, in a communication processing system, matching lines connected to an ISDN primary group speed interface to receive and transmit data applied from the ISDN primary group speed interface, and transmit the ISDN primary group speed interface. A line interface unit for extracting and outputting a clock from data received from the system; The data is received from the line interface unit, and the B channel data and the D channel data included in the corresponding data are separated and switched for each time slot, and the B channel data is output to the data processor and the D channel data is transmitted through another path. An output time slot switching unit; An alarm collecting unit for collecting alarm information from an upper control unit, a data processing unit, and the ISDN primary group speed interface; Outputs a control signal to the alarm collecting unit, the line interface unit and the timeslot switching unit to control the operation, and processes the D-channel data applied from the timeslot switching unit by its HDLC processing unit in series with the upper control unit. A main controller which outputs and periodically reads alarm information from the alarm collecting unit and monitors normal operation; And a clock divider / supply unit for supplying a frame synchronizing signal and a synchronous clock generated by dividing a clock applied from the line interface unit to the main controller, the timeslot switching unit, and the data processor.

1 is a block diagram of a conventional communication processing system.

2 is a block diagram of an ISDN primary group speed interface matching device in a communication processing system according to the present invention;

* Explanation of symbols for main parts of the drawings

11: alarm collecting unit 12: main control unit

13 line interface unit 14 timeslot switching unit

15: Clock division / supply unit

In the communication processing system according to the present invention, the ISDN primary group speed interface matching device includes an alarm collecting unit 11, a main control unit 12, a line interface unit 13, and a timeslot switching unit 14 as shown in FIG. And a clock divider / supply unit 15. The line interface unit 13 matches the lines connected to the ISDN primary group speed interface and operates according to a control signal applied from the main control unit 12 via the timeslot switching unit 14 to apply data from the ISDN primary group speed interface. Is received, the clock is extracted from the data received from the ISDN primary group speed interface, and output to the clock divider / supply unit 15. The timeslot switching unit 14 switches data transmitted from the line interface unit 13 for each timeslot according to a control signal applied from the main control unit 12, and among the data from the line interface unit 13. The B channel data is transferred to the data processor, and the D channel data is transmitted to the main controller 12. On the other hand, the alarm collecting unit 11 collects alarm information from the upper control unit, the data processing unit and the ISDN primary group speed interface and applies it to the main control unit 12 side. The main control unit 12 outputs a control signal to the alarm collecting unit 11, the line interface unit 13, and the time slot switching unit 14 to control the operation, and the D channel applied from the time slot switching unit 12. The data is processed by its own High-Level Data Link Control (HDLC) processing unit and outputted in series to the upper control unit, and periodically reads alarm information from the alarm collecting unit 11 to monitor normal operation. The clock divider / supply unit 15 supplies the frame synchronizing signal and the synchronous clock generated by dividing a clock applied from the line interface unit 13 to the main controller 12, the timeslot switching unit 14, and the data processing unit. .

The ISDN primary group speed interface matching device in the communication processing system according to the present invention configured as described above processes the data applied at the ISDN primary group speed of 2.048 Mbps by matching the ISDN primary group speed interface, and operates as follows.

First, when data is applied from the ISDN subscriber via the ISDN primary group speed interface, the line interface unit 13 operates according to the control signal applied from the main controller 12 via the timeslot switching unit 14 to the ISDN primary. The data applied from the group speed interface is received and transmitted to the timeslot switching unit 14, and the clock is extracted from the received data and output to the clock divider / supply unit 15. At this time, the timeslot switching unit 14 switches and transfers data applied from the line interface unit 13 for each timeslot according to a control signal applied from the main control unit 12, from the line interface unit 13. Among the data, the B channel data is transferred to the data processor, and the D channel data is transmitted to the main controller 12. Accordingly, the main control unit 12 processes the D-channel data applied from the timeslot switching unit 12 by its HDLC processing unit and outputs it serially to the upper control unit. After processing the channel), process the protocol of Layer 3 and output the processed data to the upper controller to inform the upper controller of channel information from the subscriber. At this time, the upper control unit manages the operation of the information providing system by grasping the state of each channel based on the D channel data applied from the main control unit, and the data processing unit based on the B channel data applied from the timeslot switching unit 14. It provides various information to ISDN subscribers.

Meanwhile, the alarm collecting unit 11 collects alarm information from the upper control unit, the data processing unit, and the ISDN primary group speed interface and applies it to the main control unit 12. The main control unit 12 periodically collects alarms. The alarm information from the unit 11 is read to monitor the normal operation. In addition, the clock divider / supply unit 15 includes an 8Khz frame synchronization signal generated by dividing a clock applied from the line interface unit 13, a synchronization clock of 2Mhz and 4Mhz, a main controller 12, and a time slot switching unit 14. ) Is supplied to the data processing section to synchronize the operation of each circuit section.

As described above, since the present invention effectively matches the ISDN primary group speed interface, the present invention can provide various information to ISDN subscribers when interworking with a packet network matching device or an Internet matching device.

Claims (1)

In the communication processing system, A line interface unit that matches a line connected to an ISDN primary group speed interface, receives and transmits data applied from the ISDN primary group speed interface, and extracts and outputs a clock from the data received from the ISDN primary group speed interface; The data is received from the line interface unit, and the B channel data and the D channel data included in the corresponding data are separated and switched for each time slot, and the B channel data is output to the data processor and the D channel data is transmitted through another path. An output time slot switching unit; An alarm collecting unit for collecting alarm information from an upper control unit, a data processing unit, and the ISDN primary group speed interface; Outputs a control signal to the alarm collecting unit, the line interface unit and the timeslot switching unit to control the operation, and processes the D-channel data applied from the timeslot switching unit by its HDLC processing unit in series with the upper control unit. A main controller which outputs and periodically reads alarm information from the alarm collecting unit and monitors normal operation; And a clock divider / supply unit for supplying a frame synchronizing signal and a synchronous clock generated by dividing a clock applied from the line interface unit to the main control unit, a timeslot switching unit, and a data processing unit. ISDN primary group speed interface matching device.