KR0182680B1 - Centrex/attendant console - Google Patents

Abstract

The present invention relates to a centrix / attendant console device suitable for carrying out the centrix-attendant console function in a DTS-1100A (improved) electronic exchanger. Network termination device 10 performing the U-line connection function with the switch 200, and a terminal device connected to the network termination device 10 to perform an audio connection function, an ISDN communication coordination function, and a system control function with the outside And a console (100) connected to the terminal device (50) to perform a user's key input and screen display functions. By performing functions such as guidance and call transfer for internal calls, the subscribers in the premises are smoothly communicated.

Description

Centrix / Attendant Console Unit

1 is a block diagram showing an embodiment of a centric / adherent console device according to the present invention.

2 is a block diagram illustrating an embodiment of a key input unit according to FIG. 1.

* Explanation of symbols for main parts of the drawings

10: network termination device 12: U-line connection

50: terminal device 52: audio connection

54: ICC control unit 56: system control unit

58: storage 100: console

102: screen display unit 104: key input unit

106: decoder 108: buffer

200: electronic exchanger

FIELD OF THE INVENTION The present invention relates to a CENTREX / ATTENDANT CONSOLE device, and more particularly to a CENTREX / ATTENTANT CONSOLE device suitable for performing CENTREX / Attendant console functions in a DTS-1100A (Improvement) electronic switchboard. It is about.

DTS-1100 Advanced Exchange is an international standard electronic switch that is used for local, local / Tandem and CENTREX of PSTN (Public Switched Telephone Network) and ultimately ISDN It has been developed to be a flexible exchanger in various network types such as intelligent network (IN).

The DTS-1100 is an advanced system developed by applying the latest technologies in the fields of computer, semiconductor, communication, and software. It is suitable for all applications in terms of external size, performance, service flexibility, and adaptability to network environment.

The DTS-1100 advanced system is one of the existing commercialized and commercialized services such as voice (Local / Tandem), CENTREX, ISDN (2B + D, 30B + D), and common line signaling (CCS NO.7). It was developed to play a major role in a comprehensive information communication network that can all be accommodated as a system.

The main design concept of the DTS-1100 retrofit is the open archi-tecture, which provides flexibility and modularity to make the system easy to expand and modify, and to easily improve the system as technology advances. ) Is adopted.

In other words, the system structure is designed to minimize the impact of technological development, and is designed in consideration of economics to provide advanced services to subscribers at a more economical price.

The main considerations in the design of the DTS-1100 advanced system are as follows.

* Simplify hardware by maximizing modularity

* Realization of economical efficiency by maximizing hardware usage efficiency

* Realize economic feasibility by maximizing software processing function

* Increased system configuration flexibility through subsystem combination

* Maximization of operation and maintenance by simplifying hardware

* High performance and high reliability

* Enhanced software implementation and maintenance

* Easy to add new features

1.1.2 System features and specifications

The DTS-1100 retrofit is available in a variety of packages.

The DTS-1100 is a system that can demand up to 8,192 subscribers and 1080 channels of trunk lines, and has a distributed control concept that can handle 1,200 Erlang traffic and 150,000 Busy Hour Call Attempts (BHCA). The capacity is extended by 1500 lines.

The collection ratio may be 4: 1 or 8: 1.

The main specifications of the DTS-1100 Enhanced Exchanger are shown in Table 1.

Distributed control structure:

The DTS-1100 retrofit incorporates a redundant processor architecture with general purpose 32-bit and 16-bit microprocessors to increase modularity and improve reliability.

The control function is implemented in a control layer structure of two levels of the upper processor and the lower processor.

The upper processor, called the Main Processor (MP), performs higher functional tasks such as call processing, number translation, exchange control, multi-frequency signal processing, system maintenance and operation, and the peripheral processor (PP). The subprocessor, called Peripheral Processor, performs tasks that require real-time processing of the lower layers, such as path detection, analysis, and line signal processing.

Function Distribution is performed by distributing various functions to the processors, and the PP and call processing processors adopt a load distribution method for easy addition as the system is expanded.

Operating system:

The operating system of the DTS-1100 enhanced system basically performs processor management by FIFO (First In First Out), and requires interrupt processing and real-time processing to perform urgent processing according to the case. The Real Time Clock is operated to perform the function.

In addition, interprocessor communication processing is performed, and control system redundancy processing is performed.

Programming language:

The DTS-1100 variant adopts C language for software programming, and Assemble language for hardware matching processing that requires real time.

Redundancy:

In order to increase system reliability, all the major parts of the DTS-1100 retrofit, ie MP, PP, etc., are duplicated, including all control systems, switches, network devices and signaling devices.

In this regard, an object of the present invention is to provide a centralized communication system for smooth communication between subscribers by performing a function of guiding or transferring a call to an external call or an internal call in a subunit call group configured in the DTS-1100A electronic switching system. The purpose is to provide a rigs / attendant console device.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention for achieving the above object is as follows.

Referring to FIG. 1, FIG. 1 is a block diagram illustrating an implementation of a Centrix / Attendant console device according to the present invention. The network termination device performs a U-line connection function with a preset electronic switch 200 ( 10) a terminal device 50 connected to the network termination device 10 to perform an audio connection function, an ISDN communication coordination function, and a system control function with the outside, and a key input of a user connected to the terminal device 50; And a console 100 performing a screen display function.

Here, the network termination device 10 connects the U-line connection unit 12 performing the U-line connection function, and the U-line connection unit 12 and the electronic switch 200 in a 2B + D U-line manner. It is made to include a Trans (T1).

In addition, the terminal device 50 is connected to the U-line connection unit 12 receives the digitalized voice signal input from the B channel of the ICC, and converts it into an analog signal, or outputs the analog signal from the handset as a digital signal. It is connected to the audio connection part 52 which converts and outputs, the audio connection part 52, and the U-line connection part 12, is connected to the ICC control part 54 which controls IEC-Q, and the ICC control part 54, The system control unit 56 enables serial communication with a general terminal and a separate device, and the storage unit controlled by the system control unit 56 allows the system control unit 56 to maintain the setup contents of the device even when the power is turned off. Including 58.

The console 100 includes a screen display unit 102 for displaying a screen according to data from the system controller 56, and a key input unit 104 for key input to the system controller 56.

The present invention thus made will be described with reference to FIG.

First, Network Termination (NT) 10 performs a U-line connection function (ISC Echocancellation Circuit (IEC-Q)) with a preset DTS-1100A electronic switch 200, and a terminal device. Equipment (TE) 50 is connected to the network termination apparatus 10 to perform an audio connection function (ARCOFI-SP), an ISDN communication controller (ICC), and a system control function.

In addition, the console (Human Interface; HT) 100 is connected to the terminal device 50 to perform a user's key input and screen display function, the electronic switch 200 is a Line Interface (LI) (ISDN subscriber) Board), Protocol Control (PC) and Service Control (SC).

Here, the U-line connection 12 in the network termination device 10 is composed of the ISDN subscriber access controller IEC-Q (PEB2091) and ICC (PEB2070), where the IEC-Q is a full-duplex that satisfies CCITT I.430 A 2B1Q block coding scheme is used as the 2B + D U-interface transceiver, and the transformer T1 connects the U-line connector 12 and the electronic switch 200 in a 2B + D U-line scheme.

Next, an audio connection unit (ARCOFI (Audio Ring Codec Filter with Speakerphone Function)) 52 in the terminal device 50 is composed of ARCOFI-SP (PEB2165), which is an Audio Ring Codec Filter (IC), U- It is connected to the line connection unit 12 and receives the digitalized audio signal input from the B channel of the ICC and converts it into an analog signal or outputs it by receiving the analog signal from the handset and converts it into a digital signal, but also functions as a filter. (Digital Signal Processing), a built-in tone generator can generate a variety of tones (ring tone, busy tone, dial tone, DTMF tone).

In addition, an external microphone and a speaker may be provided at the audio connection unit 52 to enable a speakerphone function, and may be configured to use both a handset / headset.

In addition, the ICC control unit 54 is connected to the audio connection unit 52 and the U-line connection unit 12 to interface with the B / D channel control and the CPU 68302 to control the IEC-Q.

Next, the system control unit 56 is connected to the ICC control unit 54 and uses a 16-bit micro-controller as the main processor, and has a RS-232C port for device test and program development. Communication was possible.

In addition, a separate storage unit 58 controlled by the system control unit 56, for example, EEPROM is set up so that the system control unit 56 maintains the setup contents of the device in addition to the program ROM and the data RAM even when the power is turned off. In addition to the data RAM, an optional back-up battery can be installed to maintain the data at power off.

In addition, the screen display unit 102 in the console 100 is configured using an LCD (Liquid Crystal Display) module. The LCD module includes an LCD panel, a driver, and a controller IC, so that external control signals and data of the system controller 56 may be used. Only enter and set the internal registers to display the desired screen on the LCD panel.

In addition, the key input unit 104 is composed of 45 keys as shown in FIG. 2, and the decoder 106 decodes an address A4-A2 and uses it as an input of a key scan. That is, the data input at the address input is used as a key scan output value to confirm the pressed key, and the buffer 108 temporarily stores and outputs data D0-D7 according to the pressed key.

The power supply unit is configured to use both the common power supply (AC 110 ~ 230) and the -48V DC power supplied from the exchanger, so it is possible to replace the power pack only when using the corresponding power supply.

In this case, the network termination device 10 and the terminal device 50 may be configured on the main board.

Here, the definition of terms used in the present invention will be briefly described as follows.

Integrated Services Digital Network (ISDN):

ISDN is a digital communication network that integrates and provides various services. ISDN is an integrated service digital communication network that enables to provide not only voice but also image and data services by developing voice communication.

In this case, the services to be integrated are mainly narrowband services such as telephony, facsimile, teletex, telemetry, telewriting, and data terminal.

Typical features of ISDN include the fact that the subscriber and the communication network are connected through one circuit so that various services can be comprehensively provided, and the connection between the subscriber and the communication network is digital.

In other words, the subscriber network is digitalized and various services are integrated thereon.

In ISDN, there is an advantage that a variety of voice and non-voice services can be integrated and processed, which is possible because all information processing is performed by digital method.

Therefore, in ISDN, circuit switching and packet switching can be simultaneously provided, and transmission is digital.

ISDN provides a common access point for existing circuit-switched and packet-switched networks, and has the advantage of allowing various information resources in the network to be shared.

In other words, it is possible to put various databases in a communication network and use them jointly with all subscribers and service providers.

In addition, ISDN can provide various communication processing and information processing functions, and has advantages such as facilitating operation and management of a communication network.

As described above, the Centrix / Attendant console device according to the present invention performs a function of guiding and transferring an external call or an internal call in a subunit call group configured in the DTS-1100A electronic switching system. It is to ensure smooth communication.

Claims (4)

A network termination device 10 for performing a U-line connection function with a predetermined electronic switch 200; A terminal device 50 connected to the network termination device 10 to perform an audio connection function, an ISDN communication coordination function, and a system control function with the outside; And a console 100 configured to access the terminal device 50 and perform a user's key input and screen display function. The network termination apparatus (10) of claim 1, further comprising: a U-line connecting portion (12) for performing a U-line connecting function; Centric / Attendant console device comprising a transformer (T1) for connecting the U-line connecting portion (12) and the electrical exchanger (200) in a 2B + D U-line manner. The terminal device 50 is connected to the U-line connection unit 12, receives a digitalized voice signal input from the B channel of the ICC, converts it into an analog signal and outputs the analog signal or an analog signal from a handset. An audio connection unit 52 which receives a signal and converts the signal into a digital signal and outputs the digital signal; An ICC control unit (54) connected to the audio connection unit (52) and the U-line connection unit (12) to control the IEC-Q; A system control unit 56 connected to the ICC control unit 54 to enable serial communication with a general terminal and a separate device; And a storage unit 58 controlled by the system control unit 56 to allow the system control unit 56 to maintain the setup contents of the device even when the device is powered off. The apparatus of claim 3, wherein the console (100) comprises: a screen display (102) for displaying a screen according to data from the system controller (56); And a key input unit (104) for key input to the system control unit (56).