KR950005991B1 - Trunk testing method - Google Patents

Abstract

The method takes the trunk test performing the test instruction without support of the other system or equipment. The method comprises the steps of: waiting the output signal from the far end responder(FER) hooking up the relay line; waiting the connection result of test line after connection transmission path; waiting the test result of test line; and waiting that the test line is recovered.

Description

How to perform a trunk line test for an electronic exchange

1 is a system configuration diagram for the test of the relay line.

2 is a flow chart illustrating a relay line status.

3 is a test line connection flowchart.

4 is a test flow chart.

5 is a test line cutting flow chart.

6 is a flowchart of relay line recovery and test result processing.

The present invention relates to a method for carrying out a relay line test of an electron exchanger.

In general, the communication between the exchange and the exchange period is connected to the relay line of the exchange, various repeaters and transmission systems to form a communication network. Therefore, the transmission quality of the relay line depends on the transmission quality of the entire switching network. Therefore, the transmission quality of the relay line should be tested to prevent service interruption caused by the degradation of the transmission line.

In the existing exchange, a relay test centralized management system (hereinafter referred to as CAROT: Centralized Automatic Report on Trunk) is added to test the relay line, and the CAROT calls the relay test apparatus of the exchange to test the relay line, or the exchange operator communicates with the CAROT. By constructing the track, the transmission quality of the relay line was performed in the same way that the operator of the CAROT tested.

Therefore, there is a problem that the area of the system is large and the control is complicated accordingly.

An object of the present invention is to provide a repeater test device (hereinafter referred to as TTTU: TDX-10 Trunk Test Unit) to test by simply inputting a test command to the operating terminal without the help of another system or equipment It is to provide a method for carrying out relay line test of an electronic switchboard, which occupies a relay line and configures a good route with a far end response device (hereinafter referred to as FER: Far End Responder).

In order to achieve the above object, the present invention provides a method for carrying out a test of a relay line by mounting a repeater test apparatus on an electronic switch, wherein the exchanger checks a state of a corresponding relay line when receiving a relay test test command input by a test operator. If it is in the idle state, change it to 'under test' and retrieve the information of the corresponding relay line and the information of the FER (Far End Responder) connected to the relay line, and notify the analog subscriber matching processor controlling the subscriber to start the subscriber control. A first step of requesting connection of the test line and waiting for transmission from a relay test apparatus connected to the test line; The exchange receiving the call request from the relay test apparatus sends a dial tone to the test subscriber, and when the first FER number is received, cuts out the 'call tone' and receives the remaining FER numbers, and the received number matches the FER number included in the FER information. The second step occupies the relay line and sends out the FER number, and after the FER connection is completed from the power station, connects the channel and waits for the test line connection result; When the route is connected to the FER and the exchanger is informed that the route has been completed, the test line connection result is checked, and if the test line is normally connected, a command is sent to the relay test apparatus to carry out the test and the test result is performed. Waiting third step; The exchange, which received all the test results of the desired item from the relay test device which performed the test after receiving a signal with the FER, requested the FER cutting with the relay test device and requested the recovery of the test line and waited for the test line to recover. ; And when the relay test apparatus receives the test line recovery request, the test line is hooked on to perform the trunk line test recovery, and when the test line is hooked on, the exchange notifies the relay station to the power station and cuts the channel to service the state of the relay line. It is characterized in that it comprises a fifth step of changing to and outputting the test results.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is a configuration diagram of a test system to which the present invention is applied, and in order to test the relay line, the electric switchboard (TDX-10) (2) is connected to the outgoing route of the FER connected to the power station, the type of the FER, and the corresponding. Area code of call route or call station number and call number of FER are constructed and managed by route.

The TTTU (1) can exchange data with the switch (2) through the RS232C communication terminal, it is used by connecting the test line of the TTTU (1) to the subscriber line. The FER 5 may be connected to the subscriber line of the power exchange 4 connected to the switch 2 to connect the general subscriber.

First, a brief description of the overall flow of the present invention.

When the operator inputs a relay test command through the operating terminal (3) of the electronic switchboard (2), the switchboard (2) prepares to perform the test and then requests the test line connection to the TTTU (1). In addition, the TTTU (1) attempts to call outgoing through the test line, constructs a call route to the FER (5), and then performs a tonnage check of the call route from the FER (5). When the call route is configured, the switch 2 is notified of the result of the call route configuration, and the switch 2 transmits a test command to perform the test and receives and processes the result.

After the test of all items is completed, the exchange (2) requests the FER cut to TTTU (1), then restores the test line according to the test line recovery procedure and outputs the test result to the operator. Test items that can be tested by connecting the FER (5) include transmission loss, unevaluated noise and evaluated noise, and gain loss by frequency band.

2 to 6 are the entire flow chart for carrying out the trunk line test according to the present invention.

2 is a flow chart of relay line status check. When a test operator inputs a relay line test command, the exchange receives this command (6, 7) and checks the information (status, signal type, transmission method) of the corresponding relay line (8-9). In case of 'call', the test result is output (44), and in 'idle' state, the state of the relay line is changed to 'in test' (10).

After retrieving the information of the corresponding relay line and the information of FER connected to the relay line from the exchange's database (11), it notifies the analog subscriber matching processor controlling the subscriber to start the subscriber control (12) and connects the test line to the TTTU. After request (13), wait for transmission from TTTU connected to test line (14).

3 is a flow chart of a test line connection. When a call request is received from a subscriber line connected to a TTTU (15, 16), a call tone is sent to the test subscriber (17) and the FER number is waited to be received. When the first FER number is received (18), the 'call tone' is cut (19) and the number of digits of the FER number obtained from the FER information is waited for the remaining FER number (20).

If the received number is compared with the FER number included in the FER information (21), if it matches, the relay line is occupied (22-23), and the FER number is transmitted (24). When the FER connection is completed from the power station (25-26), the communication line is connected (26) and the test line connection result is awaited (27). The received number and the FER number included in the FER information do not match or the outgoing line connection is performed. Or, if the incoming state is abnormal, a busy sound is transmitted (28) and the test line connection result is waited (27).

When the route is connected to the FER, the FER informs the TTTU that the route is connected and the TTTU informs the exchange that the route for the test has been established.

4 is a flow chart of test execution, when the exchange is informed that the construction of the route is completed (29, 30), the test line connection result is confirmed (31), and if the test line is abnormal, the test result is output (44). If normally connected, send a command to the TTTU to perform the desired test (32) and wait for the test result (33).

The TTTU communicates with the FER to perform the test and notify the exchange of the results.

5 is a flow chart of the test line.When the exchange receives the test results (34, 35), the test is repeated until all the tests of the desired items are completed, and after all tests are completed, the FERTU request is made to TTTU (36). Request a repair of the test line (37) and wait for the test line to recover (38).

6 is a flowchart of relay line recovery and test result processing. When the TTTU receives a test line recovery request, the TTTU hooks up the test line to perform relay line test recovery.

As shown in the drawing, when the test line is hooked on (39, 40), the exchange notifies the relay of the relay line recovery (41), disconnects the channel (42) and changes the state of the relay line to a serviceable state (43). The test results are output (44), the operator is notified of the test results, and then terminated.

According to the present invention, the service of the electronic switchboard is tested by the operator of the switchboard without the help of the CAROT operator or the CAROT system. The quality is prevented from deteriorating and there is an effect that can provide quality services.

Claims (1)

In the method for carrying out the test of the relay line by mounting the repeater test device on the electronic switchgear, when the exchanger receives the relay test test command input by the test operator, the state of the corresponding relay line is checked and changed to 'under test' when idle. After retrieving the information of the corresponding relay line and the information of the FER (Far End Responder) connected to the relay line, it notifies the analog subscriber matching processor controlling the subscriber to start the subscriber control and requests the connection of the test line to the relay test device. A first step of waiting for transmission from a relay test apparatus connected to a line; The exchange receiving the outgoing request from the trunk line tester sends a dial tone to the test subscriber, and when the first FER number is received, cuts out the 'ring tone' and receives the remaining FER number and the received number matches the FER number included in the FER information. A second step occupying the relay line and transmitting the FER number, and when the FER connection is completed from the power station, connecting the communication paths and waiting for a test line connection result; When the route is connected to the FER and the exchanger is informed that the route has been completed, the test line connection result is checked, and if the test line is normally connected, a command is sent to the relay test apparatus to carry out the test and the test result is executed. Waiting for the third step; The exchange, which received all the test results of the desired item from the relay test device which performed the test after receiving a signal with the FER, requested the FER cutting with the relay test device and requested the recovery of the test line and waited for the test line to recover. ; And when the relay test apparatus receives the test line recovery request, the test line is hooked on to perform the trunk line test recovery, and when the test rotation is hooked on, the exchange notifies the relay station to the power station and cuts the channel to service the state of the relay line. And a fifth step of outputting the test result to the relay line test method.