JPH01284146A - Trunk test system - Google Patents

Abstract

PURPOSE:To attain the originating/terminating test of an interstaion call in a common line signal system by providing a data transfer interface for test and a test board which controls and displays a signal message and the state of a call trunk for test. CONSTITUTION:For conducting the test of a data transfer interface 1, a switch 4 is changed over, the call trunk 8 for test of a data transfer interface for test 7 is connected with the call trunk 2 of the data transfer interface 1 through a cal line 5, and a signal link part 3 and a signal link part 9 are connected through a signal link 6. A common line signal terminal 14 is controlled from the test board of a terminating message and a line number are converted when the originating test is conducted, and the station code of an originating message and the line number are converted when the terminating test is conducted. A condition is set by control from the test board 12, and the test is conducted, whereby a result is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a trunk test method, and more particularly to a trunk test method for testing the origination and reception of calls between offices using a common line signaling system as the inter-office signaling system.

[Conventional technology]

In the conventional trunk test method, the inter-office signaling system was not a common line signaling system but an individual signaling system, in other words, a system in which voice signals and control signals were transmitted over the same transmission path, so it was difficult to transmit these two signals. In this system, the trunk used for the test was connected to the test trunk, and the trunk test was conducted under control from the test stand.

[Problem to be solved by the invention]

The conventional trunk test method described above transmits voice signals and control signals on the same transmission path, so if it is applied to a trunk test using a common line signaling method in which voice signals and control signals are transmitted through separate transmission paths, , there is a problem in that it is not possible to test by sending and receiving the station code that indicates the origin and destination that is assigned when transmitting a control signal as a signal message, and the line number that is assigned to the line that transmits the voice signal. .

An object of the present invention is to provide a test data transfer interface including a signal link section for transmitting and receiving signal messages and a test call trunk, and a test stand for controlling a call processing program, station code, and line number. The object of the present invention is to provide a trunk test method that enables testing of inter-office calls using a line signaling method.

[Means to solve the problem]

The trunk test method of the present invention includes a signal link unit for transmitting and receiving signal messages using a common line signaling system, a common line signal terminal that controls the signal link unit, and a test call trunk for passing voice signals. , and a test stand for activating a call processing program to control and display the signal message and the state of the test call trunk.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

A data transfer interface 1, which is a test object, includes a call trunk 2 for passing voice signals and a signal link unit 3 for sending and receiving signal messages, and is connected to a call line 5 and a signal link 6, respectively, and On the side, a communication path device 10 is connected to the communication trunk 2, and a common line signal terminal 13 having a function of controlling the signal link section is connected to the signal link section 3. The speech line 5 and the signal link 6 are connected to either the interoffice trunk line side or the test data transfer interface 7 by a switch 4. The test data transfer interface 7 includes a test call trunk 8 that passes audio signals and a signal link section 9.
They are connected to the call line 5 and the signal link 6, respectively, and on the opposite side, a test stand 12 is connected to the test call trunk 8, and a common line signal terminal 14 having the function of controlling the signal link unit is connected to the signal link section 9. are doing. A call processing device 11 that controls the entire switching device is connected to a communication path device 10, common line signal terminals 13 and 14, and a test stand 12 that sets test conditions during testing and displays test results. .

Next, the operation will be explained.

First, when testing the data transfer interface 1, operate the switch 4 from the test stand 12 to connect the test call trunk 8 of the test data transfer interface 7 and the call trunk 2 of the data transfer interface 1 to the call line. The signal link section 3 and the signal link section 9 are connected via a signal link 6.

Since the connection described above is looped back within the own station, in order to perform the test, a signal message containing the station code and line number used in the signal link section must be sent and received between other stations. It is necessary to convert the station code and line number so that they are the same. When performing an outgoing test here, the station code and line number of the incoming message are converted at the common line signal terminal 14, and when an incoming call test is performed, the station code and line number of the outgoing message are converted. Thus, the common line signal terminal 14 is controlled from the test bench 12 via the call processing device 11.

As mentioned above, the test of data transfer interface 1 is
By setting conditions, executing the test, and displaying the results under control from the test bench 12, trunk tests can be performed even in the common line signaling system.

〔Effect of the invention〕

As explained above, the present invention connects the call trunk and signal link section of the data transfer interface to the test call trunk and signal link section of the test data transfer interface, and connects the test call trunk and signal link section of the data transfer interface to the test stand. The common line signal terminal connected to the signal link section converts the station code and line number, controls the call processing device, and displays the transmitted and received signals and the operating status of the call trunk on the test stand. This has the effect of easily testing the call trunk and signal link section of the data transfer interface used in the common line signaling system.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention. 1... Data transfer interface, 2...
... Call trunk, 3.9 ... Signal link section,
4. Old switch, 5. Call line, 6.
... Signal link, 7 ... Test data transfer interface, 8 ... Test call trunk,
10... Call path device, 11... Call processing device, 12... Test stand, 13.14...
・Common line signal terminal. million l figure

Claims (1)

[Claims] A signal link unit for transmitting and receiving signal messages using the common line signaling method, a common line signal terminal for controlling the signal link unit, a test call trunk for passing voice signals, and a call processing program that is activated and described above. A trunk testing system comprising: a test stand for controlling and displaying signal messages and the status of the test call trunk.