KR20010056952A - A Testing method between TTTU and AXE-10 exchange using by R2 signal - Google Patents

Abstract

PURPOSE: A relay line test method between a TDX-10 switch relay line test apparatus(TTTU) and an AXE-10 switch using an R2 signal is provided to implement the functions performed by an AXE test apparatus attached to an AXE-10 switch and AXE-10 switch and a C-105 and BER test method based on the cooperation with a TTTU test apparatus for thereby implementing an AXE test apparatus and a relay line quality test(test item: C-105, BER) between TDX-10(A)/TTTU and AXE-10/AXE test apparatus. CONSTITUTION: A signal method between an AXE measuring unit and TTTU is determined to an R2 signal method, and the relay line is tested based on the state that a call is generated in the AXE-10 switch and a call is generated in TDX-10 switch. A call is generated from the AXE-10 switch to the AXE measuring unit(S1). A call is generated by designating the channel to the TDX-10 or TTTU based on the type to be tested in the AXE switch(S2). A command is transferred from the terminal for connecting the AXE measuring unit and the TDX-1o or the TTTU(S3). In case that a call is generated in the TDX-10 switch, the test number is allocated based on each test type. The allocated test number is set to route with a channel based on each test during a connection to the AXE-10 and AXE measuring unit.

Description

TDD-10 switchboard repeater using a R2 signal and a test method for relay lines during the A-10 exchange period {A Testing method between TTTU and AXE-10 exchange using by R2 signal}

The present invention relates to a TDX-10 trunk line test apparatus (TDX-10 Trunk Test Unit: TTTU) using an R2 signal and a relay line test method during an AXE-10 exchange period, and more specifically, to TDX-10 (A ) It is a method to enable the relay circuit quality test (test item: C-105, BER) for each channel during the exchange and AXE-10 exchange for long periods through the test equipment using R2 signal.

In the conventional line quality measurement field, an intrusive method of performing quality measurement by transmitting / receiving a signal between both ends of a test device or using a monitoring device for a line being used generates a signal transmission / reception. Non-intrusive measurement methods that simply perform quality testing through monitoring.

However, since most of these technologies utilize the dual tone multi-frequency (DTMF), that is, two-wire at the subscriber side, in connection with the test equipment, this method is used if no two-wire is provided directly at the exchange. This is an impossible problem.

On the other hand, the test apparatus to be implemented in the present invention, the TDX-10 (A) intercity exchanger currently used in Korea and the TTTU test apparatus applied to the exchanger, and also the AXE-10 intercity exchanger currently used in Korea and A test apparatus to be attached to the exchanger (hereinafter referred to as an AXE test apparatus), which is connected to a TDX-10 (A) exchanger and a designated channel (DS0) of the relay line during the AXE-10 exchange period by using the test apparatus attached to the long distance exchanger. In performing quality test (test item C-105, BER), if AXE-10 exchanger has a test equipment that performs the same function as TTTU, it may be possible to perform the relay line quality test of these heterogeneous exchange periods smoothly. The tester is a product developed in Korea and it is practically impossible to apply to AXE-10 exchange which is a foreign product. Therefore, the AXE-10 exchange shall be equipped with a test device capable of performing the Code 105 (Code-105: C-105) test and the Bit Error Rate (BER) test in conjunction with the TTTU. Should be.

On the other hand, the C-105 test adopted by TTTU is a standardized test method in the United States and is adopted by almost all commercial products. However, the BER test generally uses an interactive test that sends and receives a bit pattern. Rather, when the receiver loops back the circuit, the transmitter sends a bit pattern and performs a test on the return bit.

Therefore, in order to perform the C-105 and BER tests in conjunction with the TTTU in the AXE-10 exchange, it is necessary to attach a measuring instrument to which these test protocols can interoperate.

In addition, since there are no subscriber boards in the long distance AXE-10 exchange, when the test apparatus is attached to the AXE-10 exchange, it must be connected to the measuring instrument using the relay line unit E1, and the AXE test attached to the AXE-10 exchange. The signal exchanged between the device and TTTU should use R2 signal, which is the signaling method in E1 / T1.

However, to date, AXE can be connected to the AXE-10 switch with E1, and can also perform C-105 and BER tests with each other by interworking with the TTTU tester attached to the TDX-10 (A) using the R2 signal. No test equipment is provided.

That is, until now, test equipment is attached to AXE-10 exchange without subscriber board, and this test apparatus has no test apparatus to perform TTTU, C-105 and BER tests.

In view of the conventional problems as described above, the present invention should be carried out in an AXE test apparatus and an AXE-10 exchanger to be attached to an AXE-10 exchange to perform C-105 and BER tests in conjunction with the TTTU test apparatus. To implement AXE test equipment by implementing functions, mutual C-105 and BER test methods, and repeating circuit quality test between TDX-10 (A) / TTTU and AXE-10 / AXE test equipment. Item: C-105, BER).

1 is a diagram illustrating a relay line test method of an TTTU test apparatus and an AXE-10 exchange period using an R2 signal according to the present invention;

Figure 2 is a view for explaining a relay line measurement method in the case of AXE-10 exchange origination, TDX-10 (A) exchange in accordance with the present invention.

Figure 3 is a view for explaining a method of measuring a relay line in the case of TDX-10 (A) switch outgoing, AXE-10 switch incoming according to the present invention.

<Description of Symbols for Major Parts of Drawings>

1: AXE meter 2: E1 line

3: Terminal 4: AXE-10 Switch

5: relay line 6: TDX-10 (A) exchanger

7: TDX-10 Trunk Line Tester (TTTU)

In order to achieve the above object, an AXE-10 exchanger, an AXE measuring device thereof, a TDX-10 (A) exchanger equipped with a TDX-10 trunk line tester (TTTU), and the AXE-10 exchanger In the relay line test method in the apparatus comprising a relay line between the TDX-10 (A) switch and a terminal for transmitting a test command,

Setting a signaling method between the AXE measuring instrument and the TTTU as an R2 signaling method;

Performing a relay line test by dividing a call originating from the AXE-10 exchange and a call originating from the TDX-10 exchange;

When a call is generated in the AXE-10 exchange, the test procedure includes a first step of generating a call from the AXE-10 exchange to the AXE meter according to a command of the terminal, and according to the type to be tested at the AXE exchange. In the second process of generating a call by assigning a channel to 10 or TTTU, and responding in the TDX-10 or TTTU according to the second process, the terminal sends a command to interconnect the AXE measuring instrument with the TDX-10 or TTTU. A third process of delivering;

When the call is generated by the TDX-10 exchanger, step A of pre-assigning a test number according to each test type to AXE-10;

Each assigned test number is set to be routed with a separate channel according to each test of the connection lines of the AXE-10 and the AXE measuring instrument, respectively.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a TTTU test apparatus using a R2 signal and a relay line test method during an AXE-10 exchange period according to the present invention. A test apparatus connected to an AXE-10 exchanger and performing C-105 and BER tests (1 )Wow;

An E1 line (2) connecting the AXE-10 exchanger and the AXE test apparatus;

A terminal (3) capable of giving a connection command to the AXE-10 switch to an AXE measuring instrument and a counterpart station TDX-10 (A);

An AXE-10 exchanger (4) which handles the generation / reception of a call;

A relay line 5 between the AXE-10 exchanger and the TDX-10 (A) exchanger;

A TDX-10 (A) exchanger equipped with a TTTU test apparatus 7 as a module is provided.

The TDX-10 (A) exchange using the R2 signal configured as described above and the relay line quality test procedure of the AXE-10 exchange period are described as follows: This test is performed by the AXE-10 exchange and the TDX-10 (A) exchange. Tests can be made by dividing the case with

First, with reference to Figure 2 describes the measurement method in the case of AXE-10 exchange origination, TDX-10 (A) exchange incoming.

A call is made from the originating exchange 4 to the AXE meter 1 according to the command of the terminal 3. At this time, the AXE meter 1 off-hooks and waits (①).

According to the test type (BER or C-105) in the originating exchange, a call is generated by assigning a channel to the terminating exchange TDX-10 (A) (6) or the terminator TTTU (7). At this time, if the answering party (TDX-10 (A) (6) or TTTU (7)) responds (②), the terminal 3 of the originating exchange 4 has the AXE meter 1 and the called party (TDX-10 ( A) (6) or TTTU (7)) performs a command to connect to each other (③).

In the same method as described above, the receiving party receives a call depending on the type of test (C-105 and BER tests).

In the case of the C-105 test, in case of the calling party, when a call is made to a predetermined C-105 number, the exchange 4 and the AXE meter 1 are connected through a predefined channel, and the AXE meter ( 1) prepare for C-105 test (①).

Then, the terminal 3 of the originating exchange 4 calls the C-105 number of the terminating TTTU 7 (2). Then, when the calling party and the called party are connected (③), the AXE meter (1) and the TTTU (7) perform the C-105 test according to the prescribed procedure.

In case of BER test, in case of calling party, if call is made with a predetermined BER test number, exchange 4 and AXE 1 are connected through a predefined channel, and AXE 1 ) Prepare for the BER test (①).

Subsequently, the terminal 3 of the originating exchange 4 calls the BER test number of the terminating exchange (TDX-10 (A)) 6 (②). In this case, the destination exchange 6 loops back the line that the call came in. Then, when the calling party 4 and the called party 6 are connected (③), the bit pattern is sent from the AXE meter 1, and the BER is returned through the bit returned by looping back from the destination exchange 4. Perform the test.

On the other hand, referring to Figure 3 describes the measurement method in the case of TDX-10 (A) exchange originating, AXE-10 exchange incoming, in this case the CX-105 test and BER test on the AXE-10 (4) Test numbers are pre-assigned (e.g., C-105 number: 1093315, BER test number: 1093316, etc.).

These test numbers shall be set at the exchange to route to separate channels according to the C-105 test and the BER test on the E1 line of the terminating exchange AXE-10 (4) and AXE meter (1). In other words, the C-105 test is to be connected to channel 1 and the BER test to channel 2 to be connected to the measuring instrument.

In the case of the C-105 test, the TTTU (7) performs the C-105 test by the test order such as 'TEST-TRK-C105: RTE, TRK, ITEM, DN' according to the usual TTTU method. In this case, when the C-105 test number is called at the incoming AXE-10 switchboard (4), it is connected to the meter (1) with channel 1 according to a predetermined setting, and in the AXE meter (1) with channel 1 call ( ), Enter the C-105 test and connect to the calling TTTU (7) to perform the C-105 test (①).

In addition, in the case of the BER test, the TTTU (7) performs the BER test by a test command such as 'TEST-TRK-BERT: RTE, TRK, TI, DN' according to the usual TTTU method. In this case, when the BER test number is called at the incoming AXE-10 switchboard (4), the channel is connected to the AXE meter (1) with channel 2 according to a predetermined setting, and the AXE meter (1) is called with channel 2 Comes on, looping back the channel (channel 2) inside the instrument for BER testing. Since the outgoing TTTU (7) will perform a BER test (②).

As described in detail above, up to now, the relay line quality test has been performed only during the TDX-10 (A) exchange period in which TTTU is installed, and the relay line quality test cannot be performed between the TDX-10 (A) exchanger and the AXE-10 exchanger. However, according to the present invention, the blind spot of the line quality test is made by enabling the C-105 and BER tests on the relay line between the TTTU test apparatus and the foreign exchange AXE-10, which are attached to the TDX-10 (A) exchanger. It has the advantage that it is possible to test the quality of the relay line without bypassing the additional equipment or additional path for the relay line of the heterogeneous exchange period, and it also has the advantage that it can be used to improve the communication quality.

In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and modifications belong to the following claims You should see.

Claims (6)

Between an AXE-10 exchanger, an AXE measuring instrument thereof, a TDX-10 (A) exchanger equipped with a TDX-10 trunk line tester (TTTU), and the AXE-10 exchanger and a TDX-10 (A) exchanger. In the relay line test method in the apparatus having a relay line and a terminal for transmitting a test command, Setting a signaling method between the AXE measuring instrument and the TTTU as an R2 signaling method; Performing a relay line test by dividing a call originating from the AXE-10 exchange and a call originating from the TDX-10 exchange; When a call is generated in the AXE-10 exchange, the test procedure includes a first step of generating a call from the AXE-10 exchange to the AXE meter according to a command of the terminal, and according to the type to be tested at the AXE exchange. In the second process of generating a call by assigning a channel to 10 or TTTU, and responding in the TDX-10 or TTTU according to the second process, the terminal sends a command to interconnect the AXE measuring instrument with the TDX-10 or TTTU. A third process of delivering; When the call is generated by the TDX-10 exchanger, step A of pre-assigning a test number according to each test type to AXE-10; R2 signal, characterized in that each of the assigned test number is set to be routed to each of the separate channel according to each test of the connection line of the AXE-10 and AXE measuring instrument, performing a test, R2 signal TDX-10 switchboard tester (TTTU) and repeater test method for AXE-10 exchange period. The method of claim 1, In the first step, the AXE measuring device is off-hooked and in a standby state. The TDX-10 switchboard test apparatus (TTTU) using the R2 signal, and the relay line test method of the AXE-10 exchange period. The method of claim 1, If the type to be tested in the second process is code 105 (C-105), the test step generates a call with a predetermined C-105 number in the AXE-10 exchanger, connects to an AXE measuring instrument, and connects the C to the AXE measuring instrument. A first step in preparing the -105 test; A second step of connecting the AXE meter with the TTTU by calling the C-105 number of the TTTU after the completion of the first step; When the connection is complete, the AXE measuring instrument and the TTTU exchange the AXE-10 with the TDX-10 Switchgear Tester (TTTU) using the R2 signal, characterized in that it has a third step of performing a C-105 test according to a predetermined procedure. Method of test of relay line of period. The method of claim 1, If the type to be tested in the second process is a bit error ratio (BER), the trial step generates a call with a predetermined BER test number in the AXE-10 exchange, connects to an AXE measuring instrument, and prepares a BER test in the AXE measuring instrument. A first step of doing; A second step of, when the terminal calls the BER test number of the TDX-10 switch after completing the first step, loops back the line to which the call is input at the TDX-10 switch and performs connection with an AXE meter; TDX-10 switchboard test apparatus using the R2 signal characterized in that it comprises a third step of performing a BER test through the loop-backed bits in the TDX-10 exchange by sending a bit pattern from the AXE measuring instrument when the connection is complete (TTTU) and relay circuit test method for AXE-10 exchange period. The method of claim 1, When the type to be tested in step B is 'C-105', the test step is performed when the C-105 test command from the TTTU is inputted, and the channel is preset to the C-105 test number in the AXE-10 exchange. A first step of connecting to the AXE meter; TDX-10 switchboard test using the R2 signal comprising a second step of performing a C-105 test after the C-105 test is connected to the TTTU when the call is input to the channel from the AXE measuring instrument Repeater test method for TTTU and AXE-10 exchanges. The method of claim 1, If the type to be tested in the process B is a bit error ratio (BER), the test step, if a bit error ratio test command is input from the TTTU, the AXE-10 switch to the channel set to the bit error ratio test number A first step of connecting to the AXE meter; When a call is input to the channel from the AXE meter, a second step of performing a bit error ratio test in the TTTU by loop-backing the channel in the meter by performing a bit error ratio test is performed using the R2 signal. TDX-10 Switched Trunk Line Tester (TTTU) and Test Method for Repeated Lines during AXE-10 Exchange.