JPH0618401B2 - Centralized subscriber test method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a). BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centralized subscriber test system for a digital electronic exchange, and more particularly to centralize subscriber test and centrally test subscribers of a target station from a subscriber test stand of a remote centralized station. It relates to a subscriber test system.

(b). Problems of Prior Art FIG. 1 is a block diagram showing an embodiment of a subscriber test system for a digital electronic exchange according to the prior art.

In the figure, LTCNS is a subscriber test stand, LTT is a line test trunk, LS is a local exchange, CPR is a central control unit, L
TE is a line tester, SLC is a subscriber circuit, and TEL is a subscriber telephone.

The details of the conventional subscriber test will be described below with reference to the drawings. The subscriber test of the conventional local exchange office was carried out by operating the subscriber test stand LTCNS installed in the station by driving the central processing unit CPR and the line test equipment LTE.

The tester operates the subscriber test stand LTCNS, uses the line from the subscriber test stand LTCNS, and uses the line test trunk L
The exchange software SCN / SD information for performing the subscriber circuit test is transmitted / received to / from the central control unit CPR via the TT.

The line in the present invention is a digital line.

As a result of this, the central control unit CPR activates the UAR switch in the subscriber circuit SLC and the designated subscriber telephone TE
Let L be connected to the line tester LTE.

Next, the subscriber test stand LTCNS notifies the line tester LTE of the test items and the like via the line, and the line tester LTE executes the test item instructed by the subscriber test stand LTCNS and uses the line. Then, the test result is reported to the subscriber test table LTCNS.

Therefore, the line is used for communication of the control information of the line tester LTE and its monitoring test result information. Although the line is used for voice information, in this case, it is common that the line and the line use a common digital line and the signal of the line uses 1 bit of the LSB of the line.

The subscriber test as described above is a test in the exchange to which the subscriber telephone TEL belongs, and has a drawback that it cannot be applied to this case when conducting a concentrated test from a remote location.

(c). OBJECT OF THE INVENTION The object of the invention is to eliminate the above-mentioned drawbacks of the prior art,
The purpose is to provide a centralized subscriber test method that can be implemented economically from a remote location.

(d). According to the present invention, the central station comprising a digital type electronic exchange is connected to a plurality of collected stations through a digital terminal station, a digital line and a partner terminal digital terminal station, respectively. In order to test the subscribers of the station to be collected, the centralized subscriber test stand of the above sends out the information of the subscriber to be tested, and the central control unit of the central station controls the central office switch and joins the subscriber test stand to the tested station. Via a digital terminal station connected to an empty digital line to the collected station to which the person belongs,
The central control unit of the collected station is connected to the digital terminal of the collected station and the test information from the subscriber test stand via the digital terminal causes the central control unit of the collected station to test the digital terminal through the collected line exchange. The central control unit of the collected station connects the line tester to the tested subscriber through the subscriber circuit and the line through the collected station exchange by connecting to the test adapter through the adapter. Centralized subscriber characterized by connecting to the test adapter and performing a test of the subscriber of the collected station through the digital terminal station of the collected station, the line test adapter, and the line tester in the centralized subscriber test stand. Achieved by a test system.

(e). Embodiment of the Invention FIG. 2 is a block diagram showing an embodiment of a centralized subscriber test system according to the present invention.

In the figure, MLTCNS is a centralized subscriber test stand, MLTT is a master line test trunk, TS is a toll switch (central office), CPRa is a central control unit of the toll switch TS, and DT.
Is a digital terminal station, LTAP is a line test adapter,
The other symbols and numerals are the same as in FIG.

In this case, the local exchange LS is the station to be collected.

The centralized subscriber test system according to the present invention will be described below with reference to the drawings.

In the figure, the centralized subscriber test stand MLTCNS belonging to the long-distance exchange TS, which consists of a digital electronic exchange as a central station.
However, when testing the subscriber telephone TEL of the collected station having the digital type digital exchange LS, the centralized subscriber test stand transmits the information of the subscriber under test to the master line test trunk ML.
Send to central controller CPRa via TT.

Based on this information, the central control unit CPRa uses the toll switch TS.
To select a digital terminal station DT to which an empty digital line is connected to the collected station to which the subscriber under test belongs,
The centralized subscriber test stand is connected to the digital terminal station of the desired target station via this digital terminal station and digital line.

In the figure, lines and are shown as empty digital lines,
The line is for transmission of subscriber selection information and test information,
The line is for meetings with the subscribers under test. However, it is also possible to use it for a meeting and transmission of subscriber selection information and test information by one line. Subsequently, when the digital terminal of the collected station LS transmits the test information from the centralized subscriber test stand to the central control unit CPR, the CPR controls the LS and connects the digital terminal to the line test adapter LTAP as shown in the figure. .

The line test adapter LTAP performs exactly the same operation as the line test trunk LTT in FIG. 1, and transmits / receives pair exchange software SCN / SD information for performing a subscriber test with the central control unit CPR.

As a result, the central circuit CPR causes the subscriber circuit SLC
The UAR switch inside operates and the specified subscriber telephone TEL is connected to the line tester LTE.

The CPR controls the local exchange LS and connects the line test adapter to the line tester LTE.

As a result, the centralized subscriber test stand MLTCNS of the central station is the master line test trunk MLTT, the toll switch TS, the digital terminal DT, the digital line, the digital terminal DT of the collected station, the local switch LS, and the line test adapter LT.
It is connected to the line tester LTE via the AP and the local exchange LS.

Next, a line is used to notify the line tester LTE of the test items via the line test adapter LTAP, and the line tester LTE executes the test item instructed by the centralized subscriber test stand MLTCNS, To report the test results to the Centralized Subscriber Test Bench MLTCNS.

Therefore, the line is used for communication of pair switching software SCN / SD information indicating the subscriber line to be tested, control information of the line tester LTE, and its monitoring test result information.

At this time, the line is used for voice information and, as shown in FIG. 2, is connected to the line test adapter LTAP and the line tester LTE subscriber telephone TEL and used for a meeting.

(f). EFFECTS OF THE INVENTION As described in detail above, according to the present invention, there is a great effect that it is possible to realize a centralized subscriber test system that can be implemented economically using a line from a remote location.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a subscriber test system according to the prior art. FIG. 2 is a block diagram showing an embodiment of the centralized subscriber test system according to the present invention. In the figure, LTCNS is a subscriber test stand, LTT is a line test trunk, LS is a local exchange, CPR is a central control unit, L
TE is a line tester, SLC is a subscriber circuit, TEL is a subscriber telephone, MLTCNS is a centralized subscriber test stand, and MLTT.
Is a master line test trunk, TS is a long distance exchange, CP
Ra is a central control unit of the toll switch TS, DT is a digital terminal station, and LTAP is a line test adapter.

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-55-105465 (JP, A) JP-A-53-120208 (JP, A) JP-B-48-19482 (JP, B1)

Claims (1)

[Claims] 1. A centralized subscriber test of a centralized station in which a centralized station composed of a digital type electronic exchange is connected to a plurality of collected stations via a digital terminal station, a digital line and a digital terminal station of a partner station, respectively. When the platform sends out the information of the subscribers under test to test the subscribers of the collected station,
The central control unit of the central station controls the central office switch, and the subscriber test stand is connected to the station to which the subscriber under test belongs via a digital terminal to which an empty digital line is connected. , The central control unit of the collected station connects the digital terminal to the empty line test adapter through the collected station switch, and further, according to the test information from the subscriber test stand via the digital terminal. According to the information about the subscriber under test via the adapter, the central control unit of the collected station connects the line tester to the subscriber under test via the subscriber circuit, and to the line test adapter via the switch of the collected station. The centralized subscriber test system is a centralized subscriber test method that tests the subscribers of the target station through the digital terminal station of the target station, the line test adapter, and the line tester.