KR20000004585A - Method for testing communication path of subscriber card in digital key telephone system - Google Patents

Abstract

PURPOSE: A method for testing an operation state of a subscriber card in digital key telephone system uses a test program embodied in external connection computer. CONSTITUTION: The method clears a time switch in CPU card, and clears/enables the time switch buffer. The method allocates a communication channel to analog subscriber card, enables a transmission chip embodied in the digital subscriber card, and enables a control register of the transmission chip. The method selects a communication path port by activating the transmission chip control register line, performs a loop-back about the communication path channel formed to the selected communication path port, allocates a time slot to a transmitting/receiving register of the transmission chip, and switches the communication channel allocated to analog subscriber card and the loop-back communication channel. The method serially connects the external computer to a control card, and uploads the stored program to an operation memory of CPU. If the predetermined test performing input command occurs to the external computer, the method performs a test operation of a communication path responsive to the uploading program of the memory. Thereby, the method can tests a communication path of a subscriber card under on-line state without performing a system-off.

Description

How to test by calling card of subscriber in digital key phone system

The present invention relates to a method for testing the operating state of a subscriber card in a digital key phone system, and more particularly, to a method for testing the operating state of a subscriber card in a digital key phone system using a test program implemented in an external access computer.

In general, a digital key phone system performs various functions with respect to call operation, and at the same time, various test methods exist. In addition, since the communication method of the digital key phone system is made of a digital method, a test function becomes more and more important. In particular, in the method for testing the operation state of the subscriber card of the digital key phone system, a method of testing by using a separate test program implemented in an external computer and using it has been conventionally implemented and used.

This test method is performed by turning off the digital key phone system, connecting an external computer incorporating the test program, and then performing a test of the subscriber card by program operation through the external computer.

However, in such a conventional test method, system developers or operators have the inconvenience of inputting and testing commands corresponding to each item to be tested one by one directly using a communication emulator. In particular, when there are many samples to be tested or many test items, a lot of commands have to be input, which leads to a waste of test time, and also a problem in that the test is not properly performed due to mistakes caused by repeated command input operations. .

Accordingly, an object of the present invention is to define a command required for an item to test a problem that occurred in the conventional method for testing a subscriber card using an external computer, that is, a problem in which only the commands of each item to be tested are inputted. The present invention provides a test method for pre-programming an operation to be executed correspondingly so that commands corresponding to each of the test items are sequentially inputted.

Another object of the present invention is to implement a method for testing a channel with a call of a subscriber card in the online state of the system.

In order to achieve these objects, the present invention provides a method of defining a command corresponding to a test item in a series, and storing a program in the external computer that executes an operation corresponding to each defined command in a series; Serially matching a computer to the digital keyphone system, uploading the stored program to the operating memory of the digital keyphone system, and if data corresponding to the subscriber card test execution input is generated from the external computer, A subscriber card test method using a test program comprising a program uploaded to a memory is drawn out and operated as an operation program of a controller in the digital key phone system.

1 is a diagram illustrating a configuration for performing a test by a call of a subscriber card using an external access computer in a digital key phone system according to the present invention.

2 is a diagram illustrating an algorithm of a test program in a call of a subscriber card according to a preferred embodiment of the present invention.

3A and 3B are diagrams showing examples of program codes according to an algorithm of a test program in the call of the digital subscriber card shown in FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the description of the components already known or implemented in the same may be omitted since it may obscure the subject matter of the present invention.

DETAILED DESCRIPTION Hereinafter, a detailed description of the present invention will be described with reference to FIGS. 1 and 2, and FIG. 3 is an example of an actual program for performing the above-described FIG.

First, Figure 1 is a diagram showing a configuration for performing a channel test by the call of the subscriber card using an external access computer in the digital key phone system according to the present invention, which is an analog Subscriber Card (Subscribe Line Interface; SLI) and central control It shows the interworking state between the cards (Central Control Processor; CCP) and the Digital Subscriber Card (DLI) through the High Way. That is, the analog subscriber card is connected to the central control card and the highway, and the digital subscriber card is also connected to the central control card and the highway. On the other hand, the actual digital key phone system, in addition to the cards shown in FIG. 1, cards that perform another function are mounted in a modular form, but the description thereof will be omitted because it may obscure the subject matter of the present invention.

According to the configuration of the present invention, the central control card (CCP) is provided with a control unit to collect and analyze all the data generated during the operation of the entire system to determine the operation method of each part of the system. It also performs system management and application programs and performs call processing operations. The memory provided in the central control card stores an operation program of the controller and stores call processing data. The time switch accepts a pre-allocated channel and performs a connection operation between the call paths and the switching between the call paths. Depending on the connection and the switching operation such as the call may also provide a conference function for a number of callers. Serial Input / Output (Sio) supports asynchronous and matches the central control card with external devices. An example of an external device is an external computer, and in an embodiment of the present invention, an external computer is matched through an RS232C cable. In addition, voicemail devices, modems, etc. can be matched. Although not shown in FIG. 1 because it is not closely related to the gist of the present invention, the central control card performs digital key phone system operations such as DTMF generator / receiver, network synchronizer clock unit, system tone generator, other signal processing unit, and redundancy unit. The necessary components are implemented. The analog subscriber card (SLI) is an interface card of a general telephone, and performs an operation of converting input / output data through the time switch and analog input / output data of the general telephone. The digital subscriber card (DLI) is an interface card of a digital key-phone telephone. The digital subscriber card (DLI) accommodates a predetermined port and has a transmission chip capable of interfacing 2B + 1D per one port. Examples of the transmission chip include a DASL chip manufactured by National Semiconductor Corporation of Japan, which adopts a TCM (Time Compression Multiplexer) transmission method, a transmission speed of 144KBps, a transmission type of 2B + 1D, a digital PLL synchronization method, PCM voice conversion method is adopted. In the preferred embodiment of the present invention shown in FIG. 1, an example using the DASL chip is illustrated. Meanwhile, the SLI and the DLI are linked to the CCP by a predetermined number of highways, and the selection of the highway is determined by the time switch of the CCP.

Hereinafter, the present invention will be described below with reference to the accompanying FIG. 2 based on the digital key phone system configuration shown in FIG. 1.

2 is a diagram illustrating an algorithm of a channel test program for a call channel of a subscriber card according to an exemplary embodiment of the present invention, which is an algorithm of a program for testing a call path state of a transmission chip described above. Therefore, a program by this algorithm is created and compiled by a separate external computer, and the compiled program is uploaded to the memory through the serial input / output port. As a result, a program created according to the algorithm shown in FIG. 2 is stored in the memory of the central control card, and when a predetermined test command is issued, the program is executed through the control unit to perform a corresponding operation. In this case, the operation is performed in the same manner as the sequence of operations shown in the algorithm. In addition, if the necessary instructions under the basis of the algorithm shown in FIG. 2 are reconfigured and compiled, this can be applied to test performance of other devices, which can be applied to those skilled in the art or programming. It can be applied and implemented.

1 and 2, in operation 210, an operation of clearing a time switch is performed. In operation 220, the time switch buffer is cleared and enabled. In step 230, the channel is allocated to the SLI as a call. This is to test the call state through the general telephone connected to the SLI. In the diagram shown in FIG. 1, general telephone 1 is assigned to channel 0 (CH0) of highway 2 (H / W2), and general telephone 2 is channel 1 (CH1) of highway 2 (H / W2). To be assigned. In step 240, the transmission chip DASL chip included in the digital subscriber card is enabled. In step 250, the control register of the DASL chip is enabled. Therefore, the DASL chip is in a state capable of performing a transmission operation. Next, in step 260, the control register line of the DASL chip is activated. This is an operation in which a port on which a transmission operation is performed, that is, a highway, is selected and a corresponding channel is assigned. 1 shows that Highway 3 (H / W 3) is selected. In step 270, the line of channel 1B, which is a channel, is looped back. This means that the channel assigned to the port selected in step 260 is looped back, and a channel is formed in the same call between the channel of the call input to the DASL chip and the channel of the call output from the DASL chip. 1 shows that a call path is formed through channel 0 (CH0). In step 280, a corresponding timeslot is allocated to a TSXB1 / TSRB1 register, which is a channel related register, in a transmission / reception call of the DASL chip. For example, a 32-channel call allocates a corresponding channel in the channel. In operation 290, the time switch is driven to switch the highway allocated in step 230 and the highway selected in the DASL so that call data transmitted from the general telephone 1 is transmitted to the DASL chip through the time switch. The call data transmitted to the chip is looped back to be transmitted to the general telephone 2 through the time switch. Therefore, in step 300, a call path is formed between the general phone 1 and the general phone 2 to perform a call.

In conclusion, the operation state represented by the algorithm shown in FIG. 2 is, first, by assigning highway 2 (H / W2) and channel 0 (CH0) to the SLI, through which the call data of the general telephone 1 is transmitted to the time of the central control card. Transmits the call data transmitted to the time switch to the DASL chip by assigning Highway 3 (H / W3) and channel 0 (CH0) to the DLI, and then transferring the channel to the call of the DASL chip. By looping back, the call data transmitted to the DASL chip through the third highway (H / W3) and the channel 0 (CH0) is transmitted to the time switch again. When the call data transmitted to the time switch is transmitted through highway 2 (H / W2) and channel 1 (CH1) allocated to the SLI, the transmitted call data is received by the general telephone 2. FIG. As a result, a call route through the DLI is formed between the general telephone 1 and the general telephone 2, and the call state of the DLI can be tested by viewing the call states between the general telephones.

Meanwhile, an example of the program according to the algorithm of FIG. 2 described above is illustrated in FIGS. 3A and 3B, which are compiled and uploaded to the memory of the central control card, and then a predetermined test command is input from the external computer. If the same as the algorithm described above, the control unit in the central control card performs the operation. The program illustrated in FIGS. 3A and 3B is a program created by defining a series of instructions necessary for a test operation and defining an execution operation corresponding thereto. Therefore, commands are sequentially inputted in the order defined when the test is performed, and the test operation is performed accordingly.

As described above, according to the present invention, in the method of testing a subscriber card of a digital key phone system, a series of command inputs of an item in which necessary commands are defined in advance is performed without inputting each command of each item to be tested. Provide a test method for your membership card.

In addition, there is an advantage in that the call path of the subscriber card can be tested online without turning off the system.

In particular, it is possible to test a subscriber card simply by performing a test in a software method without using expensive ROM emulator equipment, and thus, there are many advantages in terms of operating cost reduction of a digital key phone system.

Claims (5)

In the method of testing the subscriber card operation status of the digital key phone system in which the analog subscriber card, the central control card, and the digital subscriber card are interworked through the highway, A first step of clearing a time switch implemented in the central processing card and clearing and enabling the time switch buffer; A second process of allocating a channel to an analog subscriber card by a call; A third process of enabling a transmission chip implemented in a digital subscriber card and a control register of the transmission chip; A fourth step of selecting a port by a call by activating the transmission chip control register line; A fifth process of looping back a channel with a call formed in the selected call path; A fifth process of allocating timeslots to transmit / receive registers of the transmission chip; Implementing a sixth step of serially performing a sixth process of driving the time switch to switch a channel to a call assigned to the analog subscriber card and a channel to the looped call; Serially connecting the external computer to the midsole control card and uploading the stored program to a working memory in the central control card; And performing a test operation of a channel through a call according to a program uploaded to the memory, when a predetermined test execution input is generated in the external computer. The method of claim 1, When a test operation of a channel of a call channel according to the program uploaded to the memory is performed, a test path between general telephones subscribed to the analog subscriber card is formed through a loop path of the digital subscriber card. Method to test the call of the subscriber card using. Claims [1] A method for testing a subscriber card of a digital key phone system in which an external computer storing a predetermined program is data matched. Defining a series of commands corresponding to a test item, and storing a program for executing a series of operations corresponding to each defined command in the external computer; Uploading the stored program to the operation memory of the digital key phone system after matching the external computer to the digital key phone system serially; When data corresponding to the subscriber card test execution input is generated from the external computer, a program uploaded to the operation memory is withdrawn and operated as an operation program of a control unit in the digital key phone system. Subscriber card test method used. It is equipped with control unit, memory, time switch, and external data input / output unit that supports asynchronous method. It collects and analyzes all data generated during operation of the whole system and decides how to operate each part of the system. A central control card for executing program, performing call processing operation, storing call processing data, and connecting pre-allocated channels to an accepting call and switching between call paths; An analog subscriber card interworking with the central control card and a highway, wherein at least one or more general telephones are connected to form a communication path to the general telephone; In the method of testing the call path of the subscriber card in the digital key phone system interlocked with the central control card and the highway, and has a digital subscriber card provided with a predetermined transmission chip to form a call path with the digital key phone, A first process of allocating arbitrary highways and channels to the analog subscriber card and transmitting call data of a predetermined general telephone to the time switch of the central control card; A second process of allocating arbitrary highways and channels to the digital subscriber card and transmitting the call data transmitted to the time switch to a transmission chip of the digital subscriber card; A third process of looping back a channel through a call of the transmission chip and transmitting the call data transmitted to the transmission chip to the time switch through a highway and a channel allocated according to the second process; A fourth process of transmitting the call data transmitted to the time switch to the analog subscriber card through the highway assigned in the first process and an arbitrary channel; And a fifth process in which the call data transmitted in the fourth process is received by a general telephone different from the general telephone which transmitted the call data in the first process. The method of claim 4, wherein In the fourth process, if the transmitted call data is not received by a general telephone other than the general telephone to which the call data is transmitted in the first process, the method for performing a predetermined operation corresponding to an abnormality in the subscriber card. Method of testing by calling card of subscriber in digital keyphone system, characterized by further comprising 6 steps.