JPH0865388A - Method for testing area free subscriber line - Google Patents

Abstract

PURPOSE: To improve efficiency of a test work by using a portable test bench with software and hardware I/F, which are connectable to an INS public network, provided on a personal note computer by an inspector and directly starting a test device via the INS network. CONSTITUTION: An inspector carrying a portable test bench 9 with software and hardware I/F, which are connectable to an INS public network 4, incorporated into a portable personal note computer, etc., is present at an unmanned station. The inspector connects the test bench 9 and a telephone set 10 for test to the public network 4 and directly starts a test device 3 connected to the public network 4 via a test control station and an additional device from the test bench 9. Next, the inspector directly tests the subscriber 1 to be tested of an unmanned exchange 2 via the public network 4 by the request of the acception telephone set 8 of a testing center 5. The reception of subscriber data 7 such as the subscriber class for each subscriber and fault histories and the updata of data 7 are performed. Thus, the test in the center 5 becomes unnecessary and the efficiency of a test work is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an area-free subscriber line test system. The area-free subscriber line test method is a method of testing the subscriber line by accessing the center equipment from an exchange in any area nationwide, and conducting the test based on the report from the subscriber with a special number, and the test results. This is a test bench system that notifies subscribers of

[0002] A center device equipped with a test stand for accepting declaration calls from subscribers and notifying test results by voice and transmitting and receiving test instructions and test results by data information is connected to a public network for transmitting voice and data. Provide additional equipment to connect and connect voice and data lines between the test control station and the public network.

The add-on device is provided with an interface mechanism between the test control station and the public network so that the center device can be accessed from an exchange in an arbitrary area. For this reason, the public network connecting the exchange and the center device is a DDX that transmits and receives data to and from the ISDN network that transmits and receives voice.
It is composed of a net.

[0004]

2. Description of the Related Art A system configuration example of an area-free subscriber line test method is shown in FIG. In the figure, 21 is a subscriber to be tested, 22 is an exchange, 23 is a failure acceptance trunk, 24 is a test device, 25 is a test control station, 26 is an additional device, 27 is a public network, and 28 is a center device. The public network 27 comprises an ISDN network for transmitting / receiving voice signals and a DDX network for transmitting / receiving control signals.

The add-on device 26 multiplexes the voice signal from the test control station 25 through the outgoing trunk and incoming trunk (2
The B + D) channel signal is connected to the ISDN network, and the control signal from the test control station 25 is connected to the DDX network according to the procedure of X25 to transmit / receive data.

The center device 28 is composed of a test table (work station) and subscriber data (disk device), and carries out a test in response to the failure report of the subscriber by the operation of the tester, and judges pass / fail. And notify the subscriber. The voice signal from the test stand is transmitted and received by the ISDN network of the public network 27, and the control signal is transmitted and received by the DDX network.

In the conventional test bench exchange system, from the subscriber 21 accommodated in the subscriber trunk of the exchange 22,
When a notification of a failure such as a loss of telephone is called by the special code "113", the exchange 22 uses the test device via the failure reception trunk 23.
Incoming to 24. When a call arrives at the test device 24, it is connected to the additional device 26 via the test control station 25 and connected to the test stand of the center device 28 via the public network 27.

[0008]

As described above, the area-free subscriber line test method has an advantage that the center number can be determined from anywhere in the country to perform the test freely.
Be sure to start the test from the center device.
In the case of attending an unmanned station, it is necessary to first request the center unit to test the unmanned station and have the center unit contact the test results via the tester, which causes extra trouble and time. was there.

According to the present invention, in order to save the labor and time required in the prior art, a portable test stand having the same interface as the test stand of the center equipment is prepared, and a tester dispatched from the center equipment to visit an unmanned station The purpose is to carry the portable test table and directly activate the test apparatus.

[0010]

FIG. 1 is a block diagram showing the principle of the present invention. In the figure, 1 is a subscriber to be tested, 2 is an exchange, 3 is a test device, 4 is an INS public network, 5 is a test center, 6 is a center test stand, 7 is subscriber data, 8 is a reception telephone, and 9 is acceptable. A portable test bench, 10 is a test telephone. The portable test table 8 is a test device in which necessary software and hardware interfaces are built in a laptop computer or the like, and the center test table 6 is a test device with a display such as a workstation.

The test device 3 is connected to the INS public network 4 via the test control station and the additional device, and the portable test stand 9 and the test telephone 10 are connected to the INS public network 4 via the exchange 2. The center test bench 6 passes through the exchange to which it belongs and I
It is connected to the NS public network 4. The INS public network 4 is a digital network for transmitting and receiving voice and data.

The portable test stand 9 has a software and hardware interface built in a portable notebook personal computer or the like so that it can be connected to the INS public network 4. The portable test table 9
It is configured such that a tester who carries a mobile phone and attends an unmanned station directly activates the test apparatus 3 via the INS public network 4.

[0013]

The tester carries the portable test bench 9 to visit the unmanned station at the request of the reception telephone 8 of the test center 5 and directly sends the untested subscriber of the unmanned station through the INS public network. Therefore, it is not necessary to take extra time and labor to start the test via the test center 5.

When referring to the subscriber data (a database such as a subscription class for each subscriber, a failure history, etc.) as necessary, the subscriber is similarly connected to the test center 5 via the INS public network 4. While the data 7 is received, the tester can also perform transmission for updating the subscriber data 7 from the portable test bench 9.

The portable test bench 9 for performing this operation is
Built-in adapter (DSU) equivalent to ISDN interface digital telephone, 64Kb (2B + D) channels
Secure the ps communication path. In this case, it is possible to allocate one of the (2B + D) channels to the test apparatus side and the other B channel to the database of the center apparatus for simultaneous access.

When the public network is ISDN, ISD
Although the DSU for N may be used, even if the public network is analog (conventional network), it is possible to achieve the same effect as the ISDN line by preparing two lines. However, in this case, a modem with a network control function can be considered as a network interface adapter.

[0017]

FIG. 2 shows an embodiment of a system configuration diagram of the present invention. In the figure, 11 is a subscriber to be tested, 12 is an unmanned station switch, 13 is a center station switch, 14 is a test device, 15 is a test control station, 16 is an additional device, 17 is an INS public network, and 18 is a center device. , 19 is a reception telephone, and 20 is a portable test bench. switch
12, exchange 13 consists of D70 type electronic exchange, INS
The public network 17 is composed of an ISDN network and a DDX network.

The portable test stand 20 is connected to the public network 17 via the exchange 12, the center device 18 is connected to the public network 17 via the associated exchange 13, and the center device 18 has a reception telephone.
It has 19, test center (workstation) and subscriber data. The portable test stand 20 is composed of a laptop type portable personal computer and has an interface connectable to an ISDN network and a DDX dedicated line.

In the test bench exchange system of this embodiment,
The reception telephone 19 of the center device 18 receives a failure report from the subscriber 11 accommodated in the subscriber trunk of the switchboard 12 of the unmanned station and tests the unmanned station. Dispatched to 12 and the tester uses the portable test bench 20
The additional device 16 of the test control station 15 is captured via the public network 17, the test instruction is given to the test device 14, and the subscriber 11 of the exchange 12
You can receive the test results directly.

Further, as in the conventional case, when the subscriber 11 accommodated in the subscriber trunk of the exchange 12 makes a call for a fault with the special code "113", the exchange 12 receives the fault through the fault reception trunk. It is also possible to receive an incoming call to the test device 14 and connect to the additional device 16 via the test control station 15 and connect to the test bench of the center device 18 via the public network 17, but from the center device 18 without fail. In order to start the test, it is necessary to inform the tester of the exchange 12 who is present at the unmanned station that requested the test of the test result.

The subscriber data obtained as a result of the tester who attended the unmanned station testing the failure-reported subscriber of the unmanned station is IN
The subscriber data of the center device 18 can be transmitted via the S public network 17 to update the subscriber data of the center.
Further, when the tester tests the unmanned station, the subscriber data recorded in the center device 18 can be appropriately referred to.

The test procedure from the portable test bench is shown in FIG. In the figure, (1) When a subscriber of an unmanned station calls "113" to report a fault, (2) an analog signal is converted into a digital signal by an additional device, and the center device of the center device passes through the INS public network. The reception phone answers. The center equipment listens to the declaration status from the unmanned station and sends the tester to the unmanned station. (3) An examiner who attends an unmanned station gives a test instruction to the subscriber under test using a portable test bench. (4) Protocol is converted in the additional device and the instruction is transmitted to the test control station. (5) The test control station sends an MF signal to the unmanned exchange to capture the subscriber line, and (6) the exchange captures the subscriber, rings the telephone bell, and confirms the call. Call the phone. (7) A test instruction is sent from the test control station to the test device, the result of testing the subscriber line is protocol-converted by the additional device, and
Display the test results on the portable test bench. (8) The tester notifies the subscriber of the test result from the test telephone, and (9) the tester captures the center device from the portable test stand via the public network and updates the subscriber data of the center device. To do.

[0023]

By enabling the test and response from the portable test bench, the test work conventionally requested to the center device is not required at all, and the test work can be made efficient. In addition, it is effective in reducing the time that the center worker spends incidentally on the response of the interim tester and the traffic volume on the center side.

[Brief description of drawings]

FIG. 1 is a block diagram of the principle of the present invention.

FIG. 2 is an embodiment of a system configuration diagram of the present invention.

FIG. 3 is a test procedure from the portable test bench of the present invention.

FIG. 4 is a system configuration example of a conventional area-free subscriber line test method.

[Explanation of symbols]

 1,11,21 Subscriber under test 2,22 Switch 3,14,24 Test equipment 4,17 INS public network 5 Test center 6 Center test stand 7 Subscriber data 8,19 Reception telephone 9,20 Portable test stand 10 Telephone for test 12 Switch for unmanned station 13 Switch for center station 15,25 Test control station 16,26 Additional device 18,28 Center device 23 Fault acceptance trunk 27 Public network

Claims (2)

[Claims] 1. A test apparatus for a subscriber line test is connected to a public network via a test control station and an additional device, and a test center equipped with a center test stand and subscriber data is connected to the public network, A portable notebook in the area-free subscriber line test system that reports a failure to the test center by a number specified by any subscriber nationwide and starts the subscriber line test by starting from the center test bench of the test center. Using a portable test bench with a built-in software and hardware interface so that a personal computer can be connected to the public network
An area-free subscriber line test method, characterized in that the test equipment is activated via the. 2. In the above area-free subscriber line test system, when a tester who visits an unmanned station refers to the subscriber data of a subscriber under test, the tester is connected to a test center via a public network. 2. The area-free subscriber line test according to claim 1, wherein the tester receives the subscriber data of the test center and transmits the update for the subscriber data from the portable test bench. Method.