JPS61196632A - Line spurious testing device - Google Patents

Abstract

PURPOSE:To execute simply the data transmitting receiving test under optional setting conditions regardless of the environment by interrupting the line at the time of the test of a tested object device, executing the test by a spurious signal among the data accumulating device and the peripheral input output device and a data processing device, connecting a line control device to a line after the test is completed and transmitting and receiving the data. CONSTITUTION:When a line spurious test device 81 is operated, the connection is cut off between a line control device 82 and the line 4, and the connection is logically executed to the line false testing device 81 and the line control device 82. The line spurious testing device 81 outputs a test starting indication to a data displaying device 6, etc. After that, a data transmitting test is started between a tester and an object device. The data inputted by the tester or inputted by a data accumulating device 5 are sent through the line spurious testing device 81 to the line control device 82. After the action of the line spurious testing device 81 is completed, the logical line is returned to the previous section between the line control device 82 and the line 4, and thereafter, the data between an opponent communication processing device 2 and the tested device through the actual line 4 are transmitted and received.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a circuit simulation test device for a communication processing device having a function of performing data communication with other devices.

[Conventional technology]

FIG. 2 is an explanatory diagram showing a conventional communication processing device testing method. In the figure, 1 is the communication processing device under test;
3 is a communication processing device connected to the other party via a line 4, 3 is a line testing device, and 4 is a line.

Next, the operation will be explained. First, the transmission control code and data are transmitted from the communication processing device 1 to be tested to the other party communication processing device 2 through the line 4. The transmission control code and data at this time are transmitted to a line testing device 3 provided on a branch of the line 4, and the communication status is checked. Further, the transmission control code and data from the communication processing device 2 of the other party are transmitted via the line testing device 3 to the communication processing device 1 to be tested, after the content of the communication status has been confirmed.

[Problem that the invention seeks to solve]

Conventional line test equipment is configured as described above, so when testing data communication, it is necessary to actually connect the line and
Because it was necessary to collect data with the line test equipment while transmitting data with the other party's communication processing equipment, it was sometimes extremely difficult to set up the test environment, and it was difficult to perform tests in exceptional cases. There were problems such as making it almost impossible to implement.

This invention was made to solve the above-mentioned problems, and it is possible to perform data communication without connecting to a real line or preparing the other party's communication processing device, and with free settings such as exception cases. The purpose is to implement the testing function on the communication processing device under test.

[Means for solving problems]

The line pseudo-testing device according to the present invention temporarily stores control codes and data transmitted from the communication processing device under test in a data storage device, displays and processes them, and allows the tester to store the control codes and data therefor. It can be set freely or automatically generated and sent to the communication processing device under test.

[For production]

The line pseudo-testing device according to the present invention performs a line test in a pseudo manner by switching and changing the transfer destination of data actually transmitted and received on the line to the line pseudo-testing device side only when the testing device is operating.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, parts that are the same as those in FIG. 2 are designated by the same reference numerals. In FIG.
It consists of a line pseudo test device 81, a line control device 82, and a data processing device 83. And line control device 8
2 to the other party's communication processing device 2 through line 4 except during testing.
exchange data with. During testing, a line pseudo test device 81 connects a logical line instead of the line 4 to the line control device 82 and controls data exchange with the data processing device 83.

At this time, the data sent from the data processing device 83 side is output to the data display device 6 or the data printing device 9. Further, data is input from the data storage device 5 or the data input device 7, and the line pseudo test device 181 sends the test data to the data processing device. The data display device 6, data input device 7, and data printing device 9 constitute a peripheral input device.

Next, the operation of this invention will be explained. First, when the line pseudo test device 81 is activated, the connection between the line control device 82 and the line 4 is severed, and the line pseudo test device 81 and the line control device 82 are logically connected. The line pseudo test device 81 then outputs a test start instruction to the data display device 6 and the like.

Thereafter, a data transmission test between the tester and the target device begins. Data input by the tester or manually input from the data storage device 5 is sent to the line control device 82 via the line pseudo test device 81. This sent data is further transmitted to the data processing device 83. Further, data from the data processing device 83 is transmitted to the line pseudo test device 81 via the line control device 82. The line pseudo test device 81 outputs the result of the line pseudo test to the data display device 6 or data printing device 9 for confirmation.

Also, using the above data input/output method, the tester can:
Can perform transmission procedure tests and data content confirmation tests for various devices under test. And line pseudo test device 8
When operation 1 is completed, the logical line is returned to the original line control device 82.
Thereafter, data is transmitted and received between the other party's communication processing device 2 and the device under test via the actual line 4.

Although the above embodiment describes a case where the device under test is used for a data transmission/reception test, it may also be used to test other input/output devices (such as a printing device) that can input and monitor data. , the same effect as the above embodiment is achieved.

Further, in the above embodiment, the tester inputs the data, but it is easily possible to have the tester automatically respond.

〔Effect of the invention〕

As described above, according to the present invention, the data communication processing device is configured to transmit and receive data between the tester and the device under test through the device under test that can be monitored. This has the advantage that data transmission/reception tests can be easily performed under any setting conditions regardless of the environment.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram of a line pseudo test device showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram of a line test using a conventional test device. In the figure, 2 is a partner communication processing device, 4 is a line, 5 is a data storage device, 6 is a data display device, 7 is a data input device, 8 is a device under test, 81 is a line pseudo test device, 8
2 is a line control device, and 83 is a data processing device. Patent applicant Mitsubishi Electric Corporation Figure 1 4 2nd line 8: Pillar wiping test # device

Claims (1)

[Claims] In a line pseudo test device for a data communication processing device that connects a communication processing device and a device under test via a line and transmits and receives data, the device includes a line control device that connects the device under test to the line; It consists of a data processing device connected to a line control device and a line simulation test device, and a data storage device and peripheral input/output devices are connected to the device under test. A test is performed using a pseudo signal between the data storage device, peripheral input/output device, and data processing device by cutting off the data processing device, and at the end of the test, the line control device is connected to the line and data can be sent and received. A circuit simulation test device that is characterized by: