KR19990037919A - Dedicated Circuit Line Test Bench - Google Patents

Abstract

This invention relates to a dedicated line track test stand, and this invention includes a test apparatus part and a matrix connection part. The test apparatus section has a plurality of test apparatus for testing the function. The matrix connection part includes a matrix connection part for connecting an external dedicated line connection control device and a frame measuring line and the plurality of test devices in a matrix manner to connect a test device desired by the user to the corresponding line. Therefore, the tester automatically connects and tests the circuit by pressing only one switch of the matrix connection to the test apparatus to be tested. By doing so, the user can conveniently manage the leased line.

Description

Dedicated Line Track Test Bench

The present invention relates to a device for installing and troubleshooting a dedicated circuit before installation. More particularly, the present invention relates to a dedicated line test bench that enables the repair of a dedicated line fault, a line interruption, and a new construction in a laboratory of a telephone office. .

Unlike general lines, leased lines not only have to maintain high-quality line conditions, but also are complex and diverse and require various tests.

In the prior art, there was no dedicated tester for new hypothesis or transfer or test of a dedicated circuit. To this end, a tester, a switch, a voltmeter, an ohmmeter, etc. were complexly connected to measure voltage and resistance. Therefore, not only did the test not be precise, but there was a difficulty in connecting the wiring complicatedly and then reconnecting for another test.

As such, in the related art, only a simple voltage or resistance was measured, and various tests should be performed for the management of a dedicated line, but this could not provide a high quality service.

The technical problem to be achieved by the present invention is to solve such a conventional problem, to provide a dedicated line line test bench that can be conveniently performed a variety of tests using an electronic circuit.

1 is a block diagram of a dedicated circuit line test bench according to an embodiment of the present invention.

2 is a configuration diagram of the trunk line communication unit of FIG. 1;

In order to solve such a subject, this invention includes a test apparatus part and a matrix connection part. The test apparatus section has a plurality of test apparatus for testing the function. The matrix connection part includes a matrix connection part for connecting an external dedicated line connection control device and a frame measuring line and the plurality of test devices in a matrix manner to connect a test device desired by the user to the corresponding line. Therefore, the tester automatically connects and tests the circuit by pressing only one switch of the matrix connection to the test apparatus to be tested. By doing so, the user can conveniently manage the leased line.

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

1 is a block diagram of a dedicated circuit line test bench according to an embodiment of the present invention,

FIG. 2 is a configuration diagram of the trunk line communication unit of FIG. 1.

As shown in Figure 1, the dedicated circuit line test bench according to an embodiment of the present invention,

A test apparatus unit 100 for testing a corresponding function;

An external dedicated circuit connection control device and a frame measuring line of the frame and the plurality of test devices are connected in a matrix manner, and switches are formed at each intersection, and a matrix connection part for connecting a test device desired by the user to the corresponding line ( 200);

It consists of an external terminal connection part 300 for connecting an external test device.

The test device unit,

A transmission / reception level measuring unit 121 for measuring a transmission / reception signal level;

A ground portion 133 for grounding the line;

An audio monitor unit 155 for adjusting the impedance to high and low, measuring the line state at that time, and outputting the audio signal as an audio signal;

It connects two of the tip, ring, and ground of the line to test the resistance and voltage, and displays the result, and includes a trunk line call unit 400 for the trunk line call.

Then, the operation of the dedicated line test bench having such a configuration will be described in detail.

As shown in FIG. 2, the dedicated line tester performs a test with a troubleshooter or subscribers while performing a test, and thus, an incoming detection circuit 480 for detecting an incoming call on the 10 CO lines (Cooked Lines 1 to 10). ~ 489), the standby circuit (470 ~ 479) that can be held, the matching circuit (460 ~ 469) for matching the circuit, the relay connection 450 and the call circuit 410 by connecting through the two characters or 10 The caller was allowed to talk simultaneously. Here, the call circuit 410 can be used in conjunction with the dial unit 420, and can select the desired party as the handset 430 to make a call.

As shown in FIG. 1, the matrix connection unit 200 includes a level receiver 110, a level transmitter 120, a ground unit 130, a loopback unit 140, an audio monitor 150, a tester 160, and an external terminal. (310, 320) are connected in a row, 8 wires (2W, TEMP, RECV, E / M, 2W_2, TEMP_2, RECV_2, E / M_2) and test terminals (TEST1, TEST2) of a dedicated circuit connection device are connected in a column To form a matrix switch. In this structure, when the intersection of the column and the row is switched on, the corresponding test function of the corresponding line is automatically performed. That is, if the reception level of the dedicated line connected to the test terminal TEST1 is to be measured, the switch of the intersection of the level receiving unit 110 and the test terminal TEST1 may be turned on.

Each test function entered as a row and each line entered as a column are explained as follows.

The level receiving unit 110 is a part for determining the noise, transmission quality, etc. of the line by measuring the reception level of the corresponding line, the level transmitter 120 is a part for measuring the transmission level of the line, the measured level is a level It is displayed via the meta 11.

The ground unit 130 includes switches 131 and 132 for determining whether the ground is an E line or an M line among two strands of the corresponding line.

The loopback unit 140 connects the transmission line and the reception line of the corresponding line, that is, loops back to determine whether there is a line error of the subscriber of the corresponding line.

The audio monitor 150 adjusts the impedance to the high impedance 151 and the low impedance 152 to output the stable state of the corresponding line as an audio signal through the monitor 153, which is output through the speaker 154. do.

The tester 160 converts and measures units of the resistances 161, 162, and 163 of the corresponding line, measures the voltage 164, and switches the user call function 165 and the handset warning sound function 167. It is provided. In addition, the response switch 167 for the trunk line call mentioned in the above process is provided.

In addition, external terminals 310 and 320 are connected to the matrix connection unit 200 so as to connect an external test device for a precise test other than the built-in test function.

The test functions listed above can be changed to meet the specifications of the consumer, and the switch system of the matrix connection unit 200 is not limited to the matrix type. In other words, it can be replaced by a bus or jumper switch.

Eight lines (2W, TEMP, RECV, E / M, 2W_2, TEMP_2, RECV_2, E / M_2) of the dedicated line connection device are provided with the call line (2W), the transmission line (TEMP), the receiving line (RECV) It consists of signal line (E / M), telephone line (2W_2), transmission line (TEMP_2), receiving line (RECV_2) and signal line (E / M_2) on the exchange side, which can be changed according to the type of dedicated line connection device. .

In addition, the test terminals (TEST1, TEST2) is composed of two lines so that the secondary tester in the Hulem can directly connect the measurement line.

Although not shown in the drawings, the present invention includes a switching mode power supply to use an AC power source, and includes a 135 DC-DC converter for using a DC power source.

As described above, in the embodiment of the present invention, it is possible to provide a dedicated line line test bench which can conveniently perform various tests using an electronic circuit.

In addition, the present invention can be used in conjunction with or exclusively to the dedicated line connection control device (LACJP) of the dedicated line centralized operation preservation system (DELMONS) so that the tester can easily perform an effective line test in a short time.

Claims (6)

In the apparatus for managing a leased line, A test apparatus section having a plurality of test apparatuses for testing the function; And a matrix connection part for connecting a test device desired by a user to a corresponding line by connecting an external dedicated line connection control device and a frame measuring line of the frame and the plurality of test devices in a matrix manner. In claim 1, The matrix connection unit is a dedicated circuit line test bench further comprises an external terminal connection for connecting an external test equipment. In claim 1, The test device unit, Transmitting and receiving level measuring unit for measuring the transmit and receive signal level; A ground part for grounding the line; An audio monitor for adjusting the impedance to high and low, measuring the line state at that time, and outputting the audio signal as an audio signal; A dedicated line test bench comprising a tester section for connecting resistance, voltage, and displaying the results by connecting two of the tip, ring, and ground of the line. In claim 3, The test device unit, A calling unit for calling a subscriber; A haura switch for transmitting a receiver left warning sound; A dedicated line track test bench further comprising a trunk line telephone book for making a call with a trunk line. In claim 4, The CO line call unit, A dedicated line track test bench, characterized in that a multi-party call is made by connecting 10 CO lines. In claim 1, The matrix connection portion, When the external dedicated circuit connection control device and frame measuring line and the plurality of test devices are connected in a matrix manner, each switch is formed at each intersection point, and the switch is selected, the corresponding function of the corresponding measuring line is tested. Dedicated line test bench, characterized in that the switching function.