JPS593057B2 - Trunk test method - Google Patents

Description

[Detailed description of the invention] The present invention relates to trunk testing.

Conventional trunk testing requires racks dedicated to the test, such as an incoming line test rack and an outgoing line test rack, which poses problems in terms of the overall cost of the equipment, the installation space, etc. In addition, cords had to be used for return tests and tests, making the operation complicated.

The present invention has improved such drawbacks, and has the following features: (1) In the inter-office trunk trunk of an exchange, the inter-office trunk trunk is switched to the test equipment, and at the same time, the inter-office trunk trunk is switched to the test equipment, and at the same time, it is possible to transmit a blockage signal to other stations. A pole telephone key is built in the inter-office trunk line width trunk, and a trunk test device is duplex connected between the plurality of inter-office trunk line width trunks, and by operating the double pole telephone key, the inter-office The test was performed by connecting the trunk line width trunk and the trunk test equipment or between the trunk line width trunks between offices.
The present invention will be explained in more detail with reference to the drawings.

Figure 1 shows the conventional trunk test method.
In the figure, SUBA and SUBB are general subscribers, SUBT is a test desk, and NW is a network, which is controlled by a central processing unit (not shown).

0TRK is a trunk, which is a general term for incoming trunk ICT, outgoing trunk OGT, etc.

Also, TSTE is a trunk test, test equipment, ICLTF is an incoming trunk test rack, OGLTF is an outgoing trunk test rack,
This rack is equipped with five ammunition SPGUs corresponding to each line. When performing a trunk function test, see Figure 1a.
As shown in Figure 2, the plug P of the trunk test equipment TSTE is inserted into the ammunition SPGU of the corresponding trunk TRK in the trunk test rack IC/OGLTF, and the test is performed by operating the operation section of the trunk test equipment TSTE. do.

In this test, there are two methods: one is to test using pseudo circuits such as various trunks and registers provided in the trunk test equipment STE, and the other is to test using five trunks used by general subscribers.

In addition, when performing a special test that is not provided in the trunk test equipment TSTE, a special test device (not shown) is inserted into the ammunition SPGU in the same manner as described above.

In addition, when carrying out a return test to test the functionality of the central processing unit (not shown) that controls the entire switchboard or to search for faults,
As shown in Figure 1 BVC, for example, one end of the cord is connected to the ammunition SPGU that supports incoming trunk ICT, and the other end of the cord is connected to the ammunition SPGU that supports outgoing trunk 0GT, and a call is made from the test desk SUBT to join. The user performs an operation to receive the call to SUBA.

In any case, ammunition and its mounting rack are required for each trunk, and the connection operation becomes complicated.

FIG. 2 shows an embodiment of the present invention, and the same reference numerals as in FIG. 1 indicate the same functions.

Here, each trunk TRK is provided with a bipolar electric key K for switching.

When this key K is pressed, air is sent out to other stations and the station becomes blocked, while the trunk TRK is connected to the trunk testing device TSTE.

A jack J is provided in the middle of the connection line to the trunk test equipment TSTSE, and one jack J is provided for each trunk TRK mounting rack, and is double-connected to all trunks in that rack. has been done. In addition, between the racks, the jacks J of each rack are connected in duplicate and the trunk test equipment T is connected.
Connected to STE.

Therefore, when performing a trunk function test, as shown in FIG. 2a, simply by pressing the electric key K of the trunk TRK to be tested, the trunk TRK is drawn into the trunk testing device TSTE. In addition, when performing special tests, use the special tester TR.
Connect the KTSTE to the jack installed on the mounting rack of the trunk under test TRK, and then simply press the key K on the trunk under test TRK to connect to the test equipment. Therefore, the trunk in the same rack can be connected to the special tester TRKTSTE by simply operating the electric key K, which eliminates operational complexity and mounting space problems. Furthermore, when conducting a loopback test, the two can be connected by simply operating the keys Kl and K2 of the incoming trunk ICT and outgoing trunk 0GT to be selected, as shown in Fig. 2b, and no cords are required.
Moreover, it is naturally unnecessary to handle it, making it extremely easy to handle.

[Brief explanation of the drawing]

FIG. 1 shows a conventional example, and FIG. 2 shows an embodiment of the present invention. In the figure, SUB is the subscriber, NW is the network, TRK is the trunk, ICT is the incoming trunk, 0GT is the outgoing trunk,
TSTE is trunk testing equipment, ICLTF is incoming trunk testing rack, 0GLTF is outgoing trunk testing rack, SPGO is ammunition, P is plug, K is electric key, J is jack, TRKTS
TE is a special tester.

Claims (1)

[Claims] 1. In the trunk for the inter-office trunk line of the exchange, switch the trunk for the inter-office trunk line to the trunk test device, and place a bipolar key for sending a blockage signal to other stations into the trunk for the inter-office trunk line. By connecting the trunk test equipment between the plurality of trunks for inter-office trunk lines, and operating the multipolar telephone key, the trunk test equipment can be connected between the trunks for inter-office trunk lines and the trunk testing equipment or between the above-mentioned offices. A trunk test method characterized by testing by connecting trunks for trunk lines.