KR19980028476A - Remote Subscriber Test Method in Electronic Switching System - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs:

Remote Subscriber Test Method in Electronic Switching System

I. The technical problem the invention is trying to solve:

Enables maintenance of remote subscriber modules in the home country of the electronic switchgear system.

All. The gist of the solution of the invention:

In the test for performing the remote subscriber call service in the electronic switchboard system of the present invention, the state of the remote subscriber can be tested when an operator in the home country of the electronic switchgear system orders a test for the execution of a predetermined remote subscriber call service. The process of judging the authorization, and if the test is possible, change the state of the remote subscriber to the test state, connect the test device and the test path of the remote subscriber and the remote subscriber module to the test, request the test with the remote subscriber module, and periodically test Checking the status, and performing a call service test on the remote subscriber to be tested according to the test request, and transmitting the current test status to the home country in response to the confirmation of the home country; Test result data based on completion of the call service test Comprises a transmitting process and a process of the test result by analyzing the test data according to the receiving the data reported to the home country of the home country Tester and recover in the modified test conditions and the test path.

la. Important uses of the invention:

Maintenance for remote subscribers

Description

Remote Subscriber Test Method in Electronic Switching System

The present invention relates to an electronic switch system, and more particularly, to a method for testing a call service state of a remote subscriber in a home country.

In the electronic switching system, the call service is performed to remote subscriber groups as well as to the remote subscriber groups. For subscriber groups in the short distance, the home country directly performs the call service and installs the Remote Subscriber Module where there is a remote small subscriber group (for example, 500 subscribers) for the remote call service. The call service is performed by connecting the home country and the trunk line.

However, in the current electronic switch system, there is no way for the mother country to check whether the remote subscriber module distributed in the remote area performs normal call service for the subscriber group. Therefore, the operator's maintenance was tested only for the subscribers in the home country, so only the abnormality was found for the subscribers in the home country. For this reason, in order to test call service for remote subscriber module and its subscriber group, it was necessary to go directly to remote subscriber module and perform separate maintenance test.

Accordingly, there is a need for a method for enabling maintenance of a remote subscriber module in a home electronic switch system.

It is therefore an object of the present invention to provide a method for enabling maintenance of a remote subscriber module in the home country of an electronic switchgear system.

Another object of the present invention is to provide a method for knowing a test result of a call service for a remote subscriber module in a mother country of an electronic switching system.

In accordance with the above object, in the present invention, by performing a remote subscriber circuit test to inform the presence of the abnormality of the circuit to accommodate the remote subscriber, the long-term subscriber line test to inform the presence of the subscriber line abnormality to enable maintenance for the remote subscriber module Headed to.

Figure 1 is a block diagram for performing a remote subscriber test in the electronic switch according to an embodiment of the present invention

2 is a control flow chart for performing the remote subscriber test of the present invention

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

Figure 1 is a block diagram for performing a remote subscriber test in the electronic switch according to an embodiment of the present invention.

Referring to Figure 1 describes the block configuration for performing the test function of the remote subscriber as follows. 1, Line and Trunk Test Management (LTTM) block 20, Analog Subscriber Test (AST) block 22, Analog Subscriber Interface (ASI) block 24, and Lap-D CEPT Link interface board assembly (LCLA) block 26 are electronics. Corresponds to station 2 in the exchange system. And, the LAP (Lap-D Trunk for RSM Interface) block 28, RSMI (Remote Switching Module Interface) block 30, and TEC (Test Equipment Control) block 32 correspond to the remote subscriber module 4. And reference numeral 6 shown in Figure 1 is a relay line connecting the mother station 2 and the remote subscriber module 4.

In Station 2, LTTM Block 20 also performs overall control and management of operator requirements testing (subscriber testing) for subscriber equipment, as well as initialization and status management of test equipment. AST Block 22 performs abnormality inspection and maintenance through quality and functional test of analog subscriber matching circuit and line, test function for subscriber for fault detection, test equipment monitoring function for test equipment management, test Performs a control function to control the In the LSI (Lap-D Trank for RSM Interface) block 28 of the ASI block 24, the LCLA block 26, and the remote subscriber module 4, call processing, test maintenance, etc. are performed using a data link of channel 16 (CH 16) of the PCM transmission line. It performs the function of sending / receiving various necessary IPCs through LAP-D protocol.

In the remote subscriber module 4, RSMI (Remote Switching Module Interface) block 30 controls the TEC (Test Equipment Control) block 32, which is a test device when a test request is made from the home country, and transmits the result to the home station. TEC block 32 requires that the test items be tested and that RSIM block 30 read the test results upon request.

Figure 2 is a control flow chart for performing the remote subscriber test of the present invention.

Referring now to the test control operation of the remote subscriber with reference to Figures 1 and 2,

When the operator issues a maintenance test order for the test requester to perform the maintenance test for the remote subscriber, the LTTM Block 20, which is responsible for the input / output of the test function, performs the number translation of the test request subscriber and the result (test request subscriber). In step 102, it is confirmed whether the subscriber to be tested is the subscriber accommodated in the remote subscriber module 4 as a result of the number translation. If it is determined in step 102 that the subscriber number translation is not a remote subscriber, the AST block 22 is controlled so that the AST block 22 performs the home maintenance test in step 104. However, if the maintenance test for the remote subscriber in step 102, the LTM block 20 controls the AST block 22 to perform the maintenance test for the remote subscriber.

Accordingly, the AST block 22 confirms whether the subscriber status is testable in step 104. However, if it is confirmed that the status of the subscriber identified in step 106 is not a testable state, the AST block 22 does not perform the maintenance test for the remote subscriber. However, if it is determined that the testable state in step 108, the flow goes to step 110. In step 110, the AST block 22 changes the state of the remote subscriber for the remote subscriber test. That is, AST block 22 suspends the normal call service state of the remote subscriber and changes the state of the subscriber to the state under test.

Thereafter, the AST block 22 transmits the relay drive request signal corresponding to the relay drive request for the connection between the test subscriber belonging to the subscriber group of the remote subscriber module 4 and the TEC block 32 which is the test device of the remote subscriber module 4 to the remote subscriber module 4. send. The relay drive request should be understood that the relevant relay driven according to the test for abnormality of the subscriber line and its specific items by performing the remote subscriber line test by performing abnormality of circuit to accommodate the remote subscriber.

When the relay drive signal is transmitted to the remote subscriber module 4, the remote subscriber module 4 will drive the corresponding relay, so that the test environment configuration is completed. Therefore, after transmitting the relay drive signal, the AST block 22 also transmits the test request signal corresponding to the test request in step 113.

The relay drive request signal and the test request signal following the signal after a predetermined time include the ASI block 24 of the mother station 2, the LCLA block 26, the data link of channel 16 (CH 16) of the relay line 6, and the LTRI block of the remote subscriber module 4. It is sent to RSMI block 30 via 28. Accordingly, the RSMI block 30 of the remote subscriber module 4 drives the corresponding relay to be connected to the test request subscriber and the test device TEC block 32 based on the drive request signal, and then receives the received test request signal and then the test device TEC block. 32 will be controlled.

TEC block 32 performs a test on the test items (for example, whether there is a fault in the circuit that accommodates a remote subscriber, or a fault in the subscriber line by performing a remote subscriber line test) and checks the test result. RSIM block 30 needs to be read. TEC block 32 also displays the current state of the test (eg during test or completion of test) during the test. This is to check the test status periodically in mother station 2, and to send the displayed information to mother station 2 every time.

When the test is completed in TEC block 32, the RSIM block 30 is required to read the test result, and RSMI block 30 receives the test result from TEC block 32 and transmits the test result to the master station 2.

On the other hand, the AST block 22 of the mother station 2 transmits the test request signal of step 113 of FIG. 2 and periodically checks the test state in step 114. This is to check whether the test does not end or transitions to abnormal state within the test set time. If it is determined in step 114 that the test state has transitioned to an abnormal state as in step 115, the process proceeds to step 121 and immediately stops the test.

However, if the test data is received in the remote subscriber module 4 within the test set time (check in steps 116 and 120), the process proceeds to step 118 to analyze the test result data. However, if the test is not completed within the test set time (check in steps 116 and 120) or if the test transitions to an abnormal state by checking the periodic test state, the process proceeds to step 121 and immediately stops the test and ends the process.

In step 118, the AST block 22 analyzes the test result data. When analyzing the test result data, the test result data is classified by the test type (circuit test, line test) of the subscriber, and the measurement result value is shown for each detailed test item. When the test type is a circuit test, the test result judgment standard value and the circuit test result value are compared to indicate good or bad. When the test type is a line test, the result value is comprehensively analyzed for each detailed measurement item to indicate a signal state.

In this way, when the test is completed, the AST block 22 proceeds to step 122 to restore the relay connected for the test, and in step 124, the status of the subscriber is also restored from the test state to the pre-test state. The test result data analyzed by LTTM block 20 is then sent. The LTTM block 20 then outputs the results analyzed in step 126 to the operator through an external output device. As a result, the operator can know the test status of the subscriber, so that maintenance of the remote subscriber module and the corresponding remote subscriber group is possible.

As described above, the present invention enables subscriber test even for the remote subscriber housed in the all-electronic switching system, thereby maintaining the same level of maintenance as the home subscriber, thereby improving the maintenance performance of the system.

Claims (5)

In the test method for performing the remote subscriber call service in the electronic switching system, Determining whether the remote subscriber is in a testable state when an operator in the home country of the electronic switching system issues a test order for performing a predetermined remote subscriber call service; Changing the state of the remote subscriber to the test state if the test is possible, connecting the test device and the test path of the remote subscriber to the remote subscriber module and requesting the test with the remote subscriber module and periodically checking the test state; The test apparatus of the remote subscriber module performing the call service test on the remote subscriber to be tested according to the test request, and transmitting the current test state to the home country in response to the confirmation of the home country; Transmitting the test result data to the home country according to the completion of the call service test; And analyzing the test result data in response to the test result data received by the home country, reporting the test result data to the tester of the home country, and restoring the changed test state and the test path to the original state. The test method according to claim 1, wherein the test path connection is varied according to a test for abnormality of a circuit accommodating a remote subscriber, a remote subscriber line test, and a test for specific items thereof. The test method according to claim 1, wherein the analysis of the test result data is performed for each test type and detailed test items according to the test. The test method according to claim 1, wherein the data transmission between the home station and the remote subscriber module uses a specific data channel of a relay line connecting the home station and the remote subscriber module. The test method according to claim 1, wherein the test is stopped when the current test state transitions to an abnormal state in a periodic test state check of the home country.