KR0182689B1 - Power on/off reporting method in centrex/attendant console - Google Patents

Abstract

The present invention relates to a power on / off reporting method in a centric / attendant console device suitable for reporting a power on / off state of a centric / attendant console device connected to the DTS-1100A electronic switching device. In the related art, when the Centrix / Attendant console device is powered off or an error occurs, the electronic switchboard does not recognize the error correctly. However, in the present invention, when the power on / off or abnormality of the Centrix / Attendant console device connected to the all-electronic exchange is generated, it can be reported to the all-electronic exchange to enable more accurate service in the all-electronic exchange.

Description

How to Report Power On / Off for Centrix / Attendant Console Devices

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.

Figure 3 is a flow chart showing step by step an embodiment of a power on / off reporting method in the center / attendant console device according to the present invention.

* 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

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reporting power on / off in a CENTEX / ATTENDANT CONSOLE device, and more particularly, to a CENTEX / ATTENDANT CONSOLE device connected to a DTS-1100A (improved) electronic switch. A method for reporting power on / off in a centric / attendant console device suitable for reporting the power on / off status of the console device to an electronic switchboard.

DTS-1100 Enhanced Switchboard is an international standard electronic switch for PSTN (Local), Local / Tandem, CECTREX, 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 and commercially available services such as voice (Local / Tandem), CENTREX, ISDN (2B + D, 30B + D), and common line signaling (CCS NO.7). It has been developed to play a major role in a comprehensive information communication network that can be accommodated by all systems.

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

* 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

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

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

Concentration ratios can 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 advanced system basically carries out process 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, it is necessary to notify the electronic switchboard of the power on / off status in the centrix / attendant console device connected to the DTS-1100A electronic switchboard. There is a number.

If this is not the case, the electronics exchange should check the status of the Centrix / Attendant console device from time to time, and if the electronics exchanger does not recognize it correctly when the Centrix / Attendant console device is powered off or an error occurs, the service should be stopped. Nevertheless, there is a drawback that an error occurs that prevents the service from being stopped.

SUMMARY OF THE INVENTION The present invention has been made to solve the drawbacks of the prior art, and the Centrix / Attendant console for reporting the power-on / off or abnormality of the Centrix / Attendant console device connected to the electronic switchgear to the electronic switchgear. It is an object of the present invention to provide a power on / off reporting method in an apparatus.

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 showing an embodiment of a CENTRIX / Attendant console device according to the present invention, and performs a U-line connection function with a preset electronic switch 200. FIG. 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 to the outside; and a user's key connected to the terminal device 50. And a console 100 that performs input and screen display functions.

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 the trans (Trans) (T1).

In addition, the terminal device 50 is connected to the U-line connection unit 12 receives a digital voice signal input from the B channel of the ICC, converts it into an analog signal, and outputs it or receives an 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 keying in the system controller 56.

The present invention thus made will be described with reference to FIGS. 2 and 3 as follows.

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 control function (ICC (ISC)), and a system control function.

In addition, the console (Human Interface; HI) 100 is connected to the terminal device 50 to perform a key input and screen display function of the user, the electronic switchboard 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, the 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 connecting unit 52 and the U-line connecting unit 12 to interface with the B / D channel control and the CPU 68302 to control the IEC-Q.

Next, the system controller 56 is connected to the ICC controller 54, using 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 the data D0-D7 according to the pressed key.

The predetermined power supply unit (not shown) is configured to use both a commercial AC power supply (AC 110V-230V) and a DC -48V power supply from the exchanger, and replace only the power pack according to the use of the power supply. Can be used.

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

3 is a flowchart showing step by step an embodiment of a power on / off reporting method in a centric / attendant console device according to the present invention.

First, the Centrix / Attendant console device initializes various hardware (PEB 2070), registers and LED / LCD / key data such as PEB 2165, etc. at power-on and attempts to activate the physical layer L1 (when the switch side ISDN is activated). The activation lamp of the subscriber board is kept in an on state.) When the activation board attempts to activate the physical layer L2 using the LAPD protocol and transmits the power-on message to the exchange (200, 210, 220, 230, 240, 250, 260).

In this case, if the power-on message is not received at the exchange side, the power-on message is retransmitted to the exchange side at 15 second intervals (270, 280).

Accordingly, if the exchange receives a power-on message and fails to analyze it, it processes the error and analyzes it, displays it through a display device such as an LCD, and starts the corresponding service of the Centrix / Attendant console device (290, 300, 310, 320).

In this case, when the exchange properly receives the power-on message from the Centrix / Attendant console device, the exchange transmits initial guide information to the Centrix / Attendant console device in response to the current month, day, The information includes hours, minutes, and seconds (implementation of the guide clock function) and information on the state when the guide was immediately turned off (position busy status memory key information).

When the message is received at the information desk, the message is analyzed and the clock is driven to transition to a service on state (Idle state) for service start.

In addition, when an abnormal condition occurs, the Centrix / Attendant console device sends a power-off message to the exchange when the Centrix / Attendant console device (information desk) is powered off. There is a problem sending a power off message to the exchange.

To prevent this, a 5V charger is placed in the power supply so that the power supply can be supplied for a while even when the power is turned off. Therefore, the power off message is sufficiently transmitted to the exchange and the device is down.

If an abnormal condition occurs and the system fails to operate normally and the power off message cannot be sent, the guide connection line on the switchboard (ISDN subscriber board) switches to Deactive. (Active status is maintained), so the exchange side detects this and operates in the same way as receiving a power off message.

As described above, the present invention has the effect of enabling a more accurate service in the electronic switchboard by reporting the power on / off or abnormality of the Centrix / Attendant console device connected to the electronic switchboard. have.

Claims (4)

In an exchange having a Centrix / Attendant console device service function, the Centrix / Attendant console device initializes various hardware at power-on and attempts to activate physical layer L1 when activated, and attempts to activate physical layer L2 when activated. Transmitting (200,210,220,230,240,250,260) an on message to the exchange side; Resending (270, 280) a power-on message to the switchboard every predetermined time when the switch-on message is not received by the switchboard; If the exchange receives the power-on message and fails to analyze the error message, the exchanger processes the error and displays it through a predetermined display device and starts the corresponding service of the centrix / attendant console device (290, 300, 310, 320); Sending the power off message to the exchange when the power on of the center / attendant console device is turned off due to an abnormal state occurrence; And the exchange receives a power off message to down process the centric / attendant console device. The method of claim 1, wherein the LAPD protocol is used when attempting to activate the physical layer L2 in the steps (200, 210, 220, 230, 240, 250, and 260). 2. The method of claim 1, wherein the predetermined time of the step (270, 280) is 15 seconds apart. The method of claim 1, wherein the predetermined display device of the step (290, 300, 310, 320) is an LCD display device.