JPS5915233B2 - Test method for switching equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved method for testing the functionality of a scanning device installed in an electronic switching equipment rack, particularly in a switching system.

The hooking status of a subscriber in an electronic exchange is transmitted to the central processing system by detecting the operating status of various relays in the subscriber circuit or trunk using a scanning device.

The number of scanned points handled by one scanning device is approximately 2000 to approximately 4.
000, and are arranged in a matrix with 16 or 32 scanned points in one row.

The scanning device selects one row specified by the central processing system, detects the open/closed state of the relay contacts of all scanned points included in the row, and transmits the detected state to the central processing system. FIG. 1 is a diagram showing an example of a conventional test method for functionally testing such a scanning device.

In FIG. 1, the trunk scanning device TSCN mounted on the trunk frame TF scans the operating state of the relays in the trunks TRK also mounted on the trunk frame TF. The trunk type TRK is a trunk row R configured every 16 points to be scanned. , R1..., are scanned by the trunk scanning device TSCN in units of RN. The trunk scanning device TSCN simultaneously scans 16 scanned points of the trunk row Rx specified by the central processing system via the address bus SPAB, detects the open/closed state of the relay contact of each scanned point, and scans the relay contacts via the answer bus SPWB. and transmits it to the central processing system. Such a functional test of the trunk scanning device TSCN is conventionally performed by a test device ST1. The test device ST3 scans each trunk row R to the trunk scanning device TSCN to be tested. ,
R1..., inputs the operating status of various scanned points from RN, compares the data output from the trunk scanning device TSCN as a result of scanning with the input data, and confirms the normality of the function. It is. Various test data input to the 16 scanned points are set each time they are input using relay contacts o to 15 in the test data input circuit ID, and the test package TPKGI connected by a long cable C is connected to the test target trunk on the trunk rack TF It is input by mounting it on row Rx.

At the same time, the row designation information corresponding to the trask row Rx carrying the test package TPKGI is input from the row designation circuit RS in the test device ST1 to the trunk scanning device TSCN,
The trunk scanning device TSCN scans the open/closed states of relay contacts o to 15 in the test data input circuit ID input to the trunk row Rx. Furthermore, the detection result is received by the test data output circuit OD in the test device ST, and is compared with the test data set in the test data input circuit ID in the comparison circuit CP.
If the two match, the trunk scanning device TS
It is determined that the scanning function corresponding to the trunk row Rx of CN is normal. As is clear from the above explanation, in order to confirm the scanning function covering all scanned points of the trunk scanning device TSCN under test, it is necessary to use the test package T with the long cable C attached.
PKG, is the trunk row R of the trunk rack TF.

It is necessary to sequentially transfer the installation to ,R,,...,RN, and the operability is not good. Also test package TP
KGl is divided into multiple blocks for convenience of handling.
If the wrong block arrangement is installed in the trunk row Rx, the test results will be judged incorrectly, so care must be taken. Furthermore, in order to streamline the test work, test data is set in advance in multiple trunk rows Rx, and the trunk scanning device TSCN
A method of continuous scanning may be considered, but this would require multiple times the scale of the test data input circuit 1D1 test package TPKG and the cable C connecting the two, which would effectively limit the scale. An object of the present invention is to improve the drawbacks of the conventional scanning device testing method as described above, and to provide the possibility of improving operability, preventing erroneous operations, and streamlining the testing work.

The purpose of this is to mount a test package on the scanned device section in the communication line equipment rack in a functional test of a scanning device mounted on the communication line equipment rack of an electronic exchange. This is achieved by setting the test package via the relay 1 driving wiring with test data which is input to the scanning device.

An embodiment of the present invention will be described below with reference to FIG. In FIG. 2, the test object is the trunk scanning device TSCN mounted on the trunk frame TF as in FIG. 1. In addition, the trunk rack TF includes the same trunk rack TF that was not used in Fig. 1.
The relay driving wiring Rc that has already been wired is shown in FIG. A relay driving device (not shown) drives the relays of various trunks TRK via the relay driving wiring Rc. On the other hand, test data input circuit 1D1 row designation circuit RSl test 1 test data output circuit 0 also shown in test device STl in FIG.
In addition to D and comparison circuit CP, the relay driving wiring R
A relay control circuit RCC is provided to apply relay operation information to c. Also, the trunk row R is connected to the test data input circuit 1D. , Rl, . . . , RN are not provided with relay contacts 0 to 15, but are built into the test package TPKG2 mounted on a predetermined trunk row Rx of the trunk rack TF during testing. Note that the test package TPKG2 is not connected to the test device ST2 by a cable or other means. Now trunk row R of trunk rack TF.

Test data is input from 16 scanned points at . First, test package TRKG2 is moved to trunk row R of trunk rack TF. be installed on. Next, when test data to be input is set in the test data input circuit ID, the test data input circuit 1D transmits the test data to the relay control circuit RCC. The relay control circuit RCC sends relay operation information to the relay 1 driving wiring Rc of the trunk frame TF based on the trunk row position (currently trunk row R) where test data is input and the test data, and transmits relay operation information to the trunk row R. The relays 0 to 15 in the test package TPKG2 installed in
input from 16 scanned points. At the same time, test equipment ST
Trunk row R in which the test package TPKG2 is loaded from the row designation circuit RS of No. 2 to the trunk scanning device TSCN. Enter the row selection information corresponding to the trunk row R. The trunk scanning device TSCN scans the open/close states of the relay contacts 0 to 15 in the test package, which are input to the 16 scanned points. Furthermore, the detection result is received by the test data output circuit 0D in the test device ST2, and compared with the test data set in the test data input circuit 1D by the comparison circuit CP. If the two match, the trunk row R of the trunk scanning device TSCN is
. The scanning function is judged to be normal. A plurality of predetermined types of test data are sequentially set in the trunk row R.
The scanning function test is repeated. R for Travuk. When the test is completed when the test data is input from , the test package TPKG2 is then reloaded onto the trunk row R1 of the trunk rack TF, and the same test is performed. Similarly, if the test package TPKG2 is moved to the final trunk row RN and the test is completed, all scanning functions of the trunk scanning device TSCN have been tested. As is clear from the above description, according to this embodiment, the trunk scanning device TS to be tested
The test package TPKG2, which inputs test data from the scanned point of -CN, is independent from the test device ST2, does not include any long cables, and has good operability.

This test package TPKG2 also requires multiple handling procedures;'j
``:l God? Nakado; ; Shinko 3;? There's no need to pay any attention.

Also, when operating the relay in the test package TPKG2 based on the test data, this is done using the relay drive cloth Rc that has already been wired to the trunk rack TF.
Tests are performed that are not limited only to the interior of the trunk scanning device TSCN. Furthermore, in order to streamline the test work, if test data is set in advance in multiple trunk rows Rx and the trunk scanning device TSCN is to continuously scan it, the required number of test packages TPKG2 can be increased and all of the test packages TPKG2 can be installed in multiple trunk rows Rx. It is not impossible to continuously scan all scanned points on the trunk rack TF. It should be noted that FIG. 2 is only one embodiment of the present invention, and for example, the scanning device to be tested is not limited to trunk use, and can be used, for example, for functional testing of line scanning devices that scan subscriber circuits mounted on line printer racks. The effect of the present invention does not change even if it is applied to

As described above, according to the present invention, the operability of the functional test of the scanning device mounted on the equipment rack of the electronic switching system is improved, erroneous operations are prevented, and the test method can also provide the possibility of streamlining the test work. is realized.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of a conventional function test method for a trunk scanning device, and FIG. 2 is a block diagram showing a method for testing a trunk scanning device according to an embodiment of the present invention. In the figure, TF... Trunk frame, STl, S
T2...Test equipment, TSCN...Tranta scanning device, RO, Rl,..., RN...
Trunk row, Rc...Relay drive wiring, ID
......Test data input circuit, 0D...Test data output circuit, RS...Row designation circuit, CP
... Comparison circuit, RCO ... Relay control circuit, TPKGl, TPKG2 ... Test package.

Claims (1)

[Claims] 1. In a functional test of a scanning device mounted on a rack of electronic switching equipment, a test package is mounted on the scanned device section in the equipment rack of the telecommunication equipment, and a wiring for driving a relay on the equipment rack of the telecommunication equipment is installed. A test method in an exchanger, characterized in that test data to be input to a scanning device is set in the test package via the test package.