JPS6256063A - Automatic test system for subscriber line - Google Patents

Abstract

PURPOSE:To obtain judgment more accurately by applying overall judgment based on the measuring result sent from a subscriber line automatic test equip ment by a central processing unit, detailed subscriber information managed by the central processing unit and the test threshold value. CONSTITUTION:When a subscriber line automatic test command inputted from a maintenance terminal 12 by the maintenance personnel is sent to a central processing unit 11, the unit 11 connects a test device subscriber circuit 8 and a PB signal receiver 16 to command the start of automatic test to a subscriber line automatic test equipment 6. The equipment 6 conducts the characteristic measurement of a subscriber telephone set 1 to be tested and a subscriber line 2 to be tested through a test link 5 and the result of measurement is informed to the central processing unit 11 via a test equipment subscriber circuit 8, an exchange switch 9 and the PB signal receiver 16. The central processing unit 11 applies overall judgment based on the result of measurement, the detailed subscriber information of the subscriber to be tested stored in the storage device 15 and the test threshold value, decides the normality/abnormality and outputs the result to a maintenance terminal 12 and a maintenance printer 13.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to electronic exchanges having subscriber lines, and more particularly to an automatic subscriber line testing system.

[Conventional technology]

Conventionally, this type of automatic subscriber line testing method had a fixed threshold value on the test equipment side, and provided information on whether the measurement result was above or below the threshold value and information on the subscriber line under test. The normality/abnormality of a subscriber's line can be roughly determined based on information on whether the subscriber is a single subscriber, a general single subscriber, or a dual subscriber.

[Problem that the invention seeks to solve]

The conventional subscriber line automatic method described above roughly determines whether the subscriber line is normal or abnormal, so if the subscriber under test is a special private branch exchange or the subscriber line and subscriber circuit in a remote location For subscriber lines that are equipped with equipment for equalizing transmission characteristics, the disadvantage is that the line may be determined to be abnormal based on the test results, even though the line is normal. be.

[Means for solving problems]

The subscriber line automatic test method of the present invention is based on the automatic subscriber line test method, which automatically connects the subscriber line under test to the test terminal through the test link, and the subscriber line under test to the test terminal under the control of the central processing unit. Measurement results are reported to the central processing unit through the test equipment subscriber circuit, exchange switch, and Pa signal receiver, and are managed by the central processing unit and stored in the log@system. The normality/abnormality of the subscriber line under test is determined using the subscriber information of the subscriber line under test and a test threshold that can be set by a command.

In this way, the central processing unit determines whether the subscriber's telephone set and the subscriber's line are normal or abnormal based on the measurement results sent from the automatic subscriber line testing equipment and the detailed information managed by the central processing unit. It is possible to perform more accurately by making a comprehensive judgment based on patient information and test thresholds.

(Example) Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of an electronic exchange to which the subscriber line automatic test method of the present invention is applied.

The electronic exchange of this embodiment includes a subscriber telephone under test 1, a subscriber line under test 2, a subscriber circuit under test 3, a test relay 4, and a test link 5 connected to the subscriber line 2 under test. A subscriber line automatic testing device 6 incorporating a PB signal oscillator = 7, a subscriber circuit for testing device 8, an exchange switch 9, a switch control device 10, a central processing unit 11,
The maintenance terminal 12, the maintenance printing device 13, the maintenance terminal control device 14, the subscriber information of the subscriber line under test 2, and the test threshold (a (this is set by a command from the maintenance terminal 12) Memory bag 15 in which the following items (possible) are stored
, a PB signal receiving box 16, and a subscriber line/trunk control bag M17.

Next, the subscriber line test operation in this embodiment will be explained.

A subscriber line automatic test command input by a maintenance person using the maintenance terminal 12 is transmitted to the central processing unit 11 via the maintenance terminal control bag M14.

As a result, the central processing unit 11 checks the subscriber circuit 3 under test via the subscriber line/trunk control unit 17PB, confirms that the subscriber telephone 1 under test is free, and uses test I-Rule 4. The subscriber line 2 under test is connected to the test 1 non-link 5, and the subscriber circuit 8 for the test equipment and the PBB signal receiving device 16 are connected by the exchange switch 9 and the switch control device 10. 8 instructs the subscriber line automatic testing device 6 to start automatic testing. The subscriber line automatic test equipment 6 measures the characteristics of the subscriber telephone 1 under test and the subscriber line 2 under test through the test link 5, and transmits the measurement results to the PB signal oscillator in the automatic subscriber line test equipment 6. 7 is used to receive the PB signal via the test device subscriber circuit 8 and exchange switch 9, and the PBB signal receiving device 16
Send to. Pa signal receiver! The measurement results received by +6 are communicated to the central processing unit 11 via the subscriber circuit/trunk control unit 17. The central processing bag 11 comprehensively judges the obtained measurement results, the detailed subscriber information of the subscriber under test stored in the storage device 15, and the test threshold value, and processes the subscriber telephone 1 under test. and determines whether the subscriber line under test 2 is normal or abnormal, and determines whether the subscriber line under test 2 is normal or abnormal.
4 to a maintenance terminal 12 and a maintenance printing device 13
Output to.

〔Effect of the invention〕

As explained above, the present invention manages the determination of normality/abnormality of the subscriber's telephone under test and the subscriber's line by the central processing unit based on the measurement results sent from the automatic subscriber line testing equipment. Comprehensive judgment based on detailed subscriber information and test thresholds has the effect of making it possible to perform more accurately.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of an electronic exchange to which the subscriber line automatic test system of the present invention is applied. 1: Subscriber telephone under test, 2: Subscriber line under test, 3: Subscriber circuit under test, 4: Test relay, 5: Test link, 6 Subscriber line automatic test device, 7: PB signal oscillation device , 8. Subscriber circuit for test bag, 9. Replacement switch, 10: Switch control device, 11: Central processing snowmaking, 12. Terminal/terminal for maintenance, 13. Printing device for maintenance. 14. Terminal control device for maintenance, 15. Self-memory ÷ξI! , 16: PB signal receiving device, 17: Subscriber circuit/trunk control snowmaking.

Claims (1)

[Claims] In an electronic exchange having a subscriber line, the subscriber line under test is connected to the test terminal by an automatic subscriber line testing device that connects the subscriber circuit under test to the test terminal through a test link under the control of the central processing unit. Based on the measurement results reported to the central processing unit through the device subscriber circuit, exchange switch, and PB signal receiving device, and the subscriber information and commands of the subscriber line under test that are managed by the central processing unit and stored in the storage device. An automatic subscriber line test method that uses configurable test thresholds to determine whether the subscriber line under test is normal or abnormal.