KR200297106Y1 - Apparatus for detecting trouble of a communications line - Google Patents

Abstract

The present invention relates to a communication line failure detection device to promptly take action by enabling the failure detection circuit unit to immediately check whether an error occurs in the subscriber line or the protector function. The present invention provides each protector so as to be connected to a protector coupling part 22 having five holes 21 into which the electrodes of the protector are fitted, a first connector 23 attached to one end in the longitudinal direction, and a thermistor of the protector. Transmitting a plurality of fault detection circuit unit 30 and circuits mounted between the holes 21 of the coupling unit 22 and the signal detected by the fault detection circuit unit 30 to the corresponding port of the first connector 23. A subscriber board (20) having a conductive wiring pattern (31) printed on the surface thereof; And a second connector 41 attached to one end of the subscriber board 20 to be electrically coupled to the first connector 23 of the subscriber board 20, and electrically connected to an external power source and an alarm circuit 50a of the situation room panel 50. The third connector 42, the plurality of photocouplers 43 each operated by the input current from the failure detection circuit unit 30, and the operation signals of the respective photo couplers 43, and are connected through an external power source. Provided is a communication line failure detecting apparatus including a warning display module (40) having a plurality of transistors (45) which emit light of the light emitting diodes (44).

Description

Communication line failure detection device {APPARATUS FOR DETECTING TROUBLE OF A COMMUNICATIONS LINE}

The present invention relates to a communication line failure detection device for protecting the exchanger from overvoltage or overcurrent or crosstalk flowing from the communication subscriber line, leakage current, loss of function of the wiring board protector, and more particularly, overvoltage or overcurrent or crosstalk, In the event of an accident due to leakage current or loss of the function of the protector, a module communication circuit failure detection device is provided so that prompt action can be immediately confirmed by the operation of a modular sensing circuit.

In general, a so-called circuit board protector or communication line failure detection device is used to protect the exchanger from overvoltage and overcurrent due to contact, disconnection, crosstalk, etc. with the ground in the condition of the subscriber line.

However, such a conventional protector is a hot wire coil type, and when a condition such as contact, disconnection, crosstalk, etc. occurs in an environment of a line condition by using a semiconductor device, fatigue accumulation occurs depending on the number of times and the basic function is lost. In addition, there is a problem that the self-healing function is also lost.

In addition, when the function of the protector is lost, it must be replaced with a new protector, but there is a problem in that it is impossible to check whether the protector itself is abnormal in advance, and thus it is impossible to take action until the failure report of the subscriber.

On the other hand, a protector for attaching an LED (LED) to a conventional wiring board protector so that an administrator can easily check when a protector function malfunctions is disclosed in Korean Utility Model Publication No. 243303 published on August 7, 2001. .

FIG. 1 is a circuit board protector with a conventional LED attached to the above-mentioned Korean Utility Model Publication, and FIG. 2 is a circuit diagram of the protector of FIG. 1. 1 and 2, the conventional circuit board protector 10 includes thermistors that are circuitally configured at an input terminal 11 of a negative electrode and a positive electrode, an output terminal 12 of a negative electrode and a positive electrode, and an input / output terminal. 13 and an arrestor 14. In addition, it consists of a monitoring circuit unit 15 provided at both ends of the thermistor 13, an LED 16 visually showing whether there is an abnormality, and a casing 17 surrounding the above elements. The monitoring circuit unit 15 includes an abnormality monitoring circuit (not shown) inside the protector and a crosstalk detection circuit (not shown) of the subscriber line.

In this configuration, if the line is tangential, disconnected, or mixed due to the change of the external environment of the subscriber line, the overvoltage and overcurrent are generated and flowed into the exchange side. At this time, the thermistor 13 installed to protect the exchanger has a temperature rise due to its own heat generation, and when the temperature rises, the resistance value rises, and when the resistance value rises, the amount of current decreases in proportion to the resistance value. It will protect the exchanger. In addition, when a lightning strike or the like falls on the track, the overvoltage and overcurrent input to the exchanger side are momentarily discharged by the aristor 14, thereby protecting the exchanger.

However, the conventional protector should be replaced with a new protector when the function of the protector is lost.However, the method of checking whether the protector itself is abnormal is made through the LEDs attached to the individual protectors. Difficult to check In other words, there is a difficulty in finding a protector indicating an abnormality by checking each protector installed in the switchboard facility one by one.

In other words, similar to the case of the protector without the conventional LED mentioned above, whether the overvoltage and overcurrent are flowing, whether the self-healing function is lost due to the fatigue accumulation of the thermistor, whether there is a crosstalk and other overload, It is difficult for the administrator to easily check whether there is a normal operation, and therefore, the subscriber often fails to take any action until the failure is reported.

This raises the problem of customer inconvenience and reduced service, increases the cost to take action after checking whether there is an abnormality, impairs corporate image and improves the quality of service in the infrastructure network and high-speed data communication, and improves the company's competitiveness. You have problems such as dropping.

The present invention has been made to solve the above-described problems, and the object of the present invention is to provide an easy way to immediately check whether there is an abnormality by the operation of a modular sensing circuit unit when an abnormality of a subscriber transmission line and an abnormality of a protector function occur. In this case, a communication line failure detection device is provided, which enables quicker recovery measures and reduces maintenance costs by reducing civil complaints, reducing manpower, and improving the quality of service on the infrastructure network and high-speed data communication. To provide

1 is a perspective view showing a protector for a conventional wiring board;

FIG. 2 is a circuit diagram illustrating the circuit board protector of FIG. 1; FIG.

3 is a side view of a communication line failure detecting device according to an embodiment of the present invention;

4A is a front view showing the subscriber board of the communication line failure detecting apparatus of FIG. 3;

4B is a rear view of FIG. 4A;

5A is a front view illustrating a warning display module of the communication line failure detecting apparatus of FIG. 3;

5B is a rear view of FIG. 5A;

6 is a circuit diagram of the communication line failure detecting apparatus of FIG. 3;

7 is a circuit diagram of the warning display module of FIG. 5A;

8 is a front view illustrating an example of a situation room panel in which a signal detected by the communication line failure detecting apparatus of FIG. 3 is displayed.

Explanation of symbols on the main parts of the drawings

20: Subscriber Board 21: Hole

22: protector coupling portion 23: the first connector

30: fault detection circuit 30a: wiring pattern

31: first transistor 32: second transistor

33, 34: diodes 35 to 38: first to fourth resistors

40: warning display module 40a: warning display circuit

41: second connector 42: third connector

43: photocoupler 44: first light emitting diode

45: third transistor 50: situation panel

50a: alarm circuit 51: second light emitting diode

52: fourth transistor 53: alarm

Communication line fault detection apparatus of the present invention for achieving the above object, including thermistor or thermistor and the aristor to protect the exchanger from the overvoltage and overcurrent or crosstalk, leakage current, the malfunction of the protector flowing from the subscriber transmission line A communication line failure detecting device for mounting a separate circuit-protected protector on a subscriber board in a switchboard, comprising: a protector having five holes into which a pair of input terminals of the protector, another pair of output terminals, and a center dummy terminal are fitted; A plurality of failure detections each comprising a coupling portion, a first connector attached to at least one end in the longitudinal direction, and an electrical element circuit-mounted between the holes of each of the protector coupling portions to be connected to the thermistor of the protector; A circuit unit and a signal detected by the fault detection circuit unit to solve the first connector. The subscriber board having a conductive wiring pattern printed on a surface to be transferred to the port; And a second connector attached to one end to be electrically coupled to the first connector of the subscriber board, a third connector electrically connected to an external power supply and an alarm circuit of the situation room panel, and the first from the failure detection circuit unit. And a plurality of photocouplers each operated by a failure detection signal current input through the second connectors, and a plurality of transistors respectively emitting the corresponding first light emitting diodes through the external power source according to the operation signals of the respective photocouplers. Characterized in that it comprises a warning display module provided.

The present invention is to control and control the 100-port subscriber in a single subscriber board, and to identify the subscriber line very quickly at the time of an accident such as the failure of the internal circuit of the protector and the deterioration of the subscriber line or the grounding of the line. Can be controlled. In addition, by simply replacing the conventional subscriber board with the subscriber board of the present invention and by mounting the conventional protector to the subscriber board, and at the same time by combining the warning display module of the present invention with the subscriber board, the subscriber line through the modular subscriber display light emitting diode Or the abnormality of the protector itself can be very effectively identified and coped. In addition, the situation room panel can be used to more effectively manage the subscriber line and the protector itself.

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

Example

3 is a side view showing a communication line failure detection apparatus according to an embodiment of the present invention. Figure 4a is a front view showing a subscriber board of the communication line failure detection apparatus according to an embodiment of the present invention, Figure 4b is a rear view of Figure 4a.

Referring to FIG. 3, a communication line failure detecting apparatus according to an embodiment of the present invention includes two warning display modules 40 coupled to both ends of a subscriber board 20 and a length direction of the subscriber board 20, respectively. do. For reference, a protector having a thermistor or thermistor and an aristor therein is separately mounted on the subscriber board 20 of the present invention, and the warning display of the warning display module 40 is operated simultaneously with the alarm circuit of the situation room panel.

In other words, the communication line failure detection device of the present invention has a subscriber unit light emitting diode of the subscriber board lighting up when the “error”, “self-repair function”, “function malfunction”, etc. occur inside the protector. The subscriber board display light emitting diode which is being operated is configured to turn on together. In addition, if the cause of the accident that occurred inside the protector and the cause of the accident that occurred on the track is resolved and repaired, the corresponding subscriber's display LED on the subscriber's board goes out, and at the same time the subscriber's board's LED on the subscriber room goes off and the alarm stops .

Specifically, the subscriber board 20 is a protector coupling portion 22 having five holes 21 for coupling a protector (not shown) including a thermistor to each subscriber line side, as shown in FIG. 4A, And first connectors 23 mounted at both ends in the longitudinal direction thereof. As the protector, a conventional protector without an LED is used. The five holes 21 of the protector coupling portion 22 are provided with a pair of input terminals provided with each protector, a pair of output terminals, and a dummy terminal at the center. It is formed to correspond with. In the drawing, the protector coupler 22 is formed of five protector couplers 22 disposed in the width direction on the subscriber board 20 and 20 protector couplers 22 arranged in the longitudinal direction.

Subscriber board 20 also includes a failure detection circuitry 30, each electrically coupled to individual protector connections 22, as shown in FIG. 4B. In addition, the subscriber board 20 has a conductive wiring pattern 30a formed in the space 24 between the respective failure detection circuit units 30. In the figure, most of the conductive wiring patterns 30a are omitted.

The fault detection circuit unit 30 is composed of two transistors, two pin diodes, and four resistors. This failure detection circuit unit 30 will be described in detail in the following description with reference to FIG. 6.

The conductive wiring pattern 30a may include a failure detection circuit unit in a space 24 between the protector connection units 22 to transmit a signal sensed by each failure detection circuit unit 30 to a circuit of the warning display module 40. From the 30 to the corresponding port of the connector 23 is printed on the surface of the subscriber board 20. The conductive wiring pattern 30a is formed of at least one conductive material selected from gold (Au), silver (Ag), aluminum (Al), copper (Cu), and the like.

5A is a front view illustrating a warning display module of a communication line failure detecting apparatus according to an embodiment of the present invention, and FIG. 5B is a rear view of FIG. 5A.

As shown in FIGS. 5A and 5B, the warning display module 40 includes a second connector 41 and a third connector 42, between the second connector 41 and the third connector 42. A plurality of photocouplers 43, a light emitting diode 44, and a third transistor 45 are disposed. One photocoupler 43, one light emitting diode 44, and one transistor 45 form one warning display circuit portion 40a (see FIG. 6).

In more detail with respect to the operation relationship between the above configuration, the second connector 41 is attached to one end of the warning display module 40 to be electrically coupled to the first connector 23 of the subscriber board (20) do. The third connector 42 is attached to the other end of the warning display module 40 and is electrically connected to the external power supply and the alarm circuit 50a of the situation room panel 50. The photocoupler 43 is operated by current input from the failure detection circuit unit 30 of the subscriber board 20 through the first and second connectors 23 and 41. The light emitting diodes 44 are turned on by the third transistor 45 driven according to the signal of the photocoupler 43. The third transistor 45 operates to emit the corresponding light emitting diode 44 through an external power source according to the operation signal of the photocoupler 43.

On the other hand, the photocoupler 43 and the first light emitting diode 44 may be assigned a serial number so that the subscriber line or the protector can be easily identified. In addition, the arrangement of the warning display module 40 shown in FIGS. 5A and 5B is merely an example, and various changes or modifications are possible to those skilled in the art within the scope of the present invention.

6 is a circuit diagram of a communication line failure detecting apparatus according to an embodiment of the present invention. The circuit of FIG. 6 basically comprises a failure detection circuit unit 30 mounted on the subscriber board 20 and a warning display circuit unit 40a mounted on the warning display module 40. In addition, in the drawing, thermistors 60a and 60b are installed inside a separate protector fitted to the protector coupling part 22 of the subscriber board 20.

The failure detection circuit unit 30 mounted on the subscriber board 20 to detect an abnormality in the communication subscriber line or the protector itself may allow the first transistor 31 and the second transistor to pass an input voltage of 23V or less and 30V or more. (32) a pin diode connected respectively between the collector of the first transistor 31 and the positive line of the subscriber line and between the emitter of the second transistor 32 and the negative line of the subscriber line for high frequency switching attenuation. (33, 34), a first resistor 35 having a resistance value of the subscriber line, a second resistor 36, a first transistor connected to both ends of the subscriber line together with the first resistor 35 to distribute the voltage. A third resistor 37 connected to the emitter of the 31 and the base of the second transistor 32 and controlling a predetermined voltage value (for example, 23 V) or less of the subscriber line, and a collector of the second transistor 32; Disposed between the photocouplers 43 A predetermined voltage value range of the subscriber line (e.g. 23 ~ 30V) and a fourth resistor (38) for passing an appropriate current in the side of photo coupler 43.

In addition, the fault display circuit unit 40a mounted on the fault display module 40 to display the detected signal includes a photocoupler 43 operating by a current input through the fourth resistor 38 and a third transistor ( A first light emitting diode 44 which is emitted by the conduction operation of 45 and a third transistor 45 which is operated to be conducted by the photocoupler 43.

Next, the circuit operation by the above configuration will be described. If overvoltage (over 30V) or overcurrent occurs due to the change of conditions such as tangential, disconnection, crosstalk, etc. on the subscriber line, the temperature rises due to the heat generation of thermistors 60a, 60b itself. As the resistance value increases, the current value decreases in proportion to the resistance value.

Since the voltage difference across the thermistors 60a and 60b changes from equality condition to inequality condition, the fault detection circuit unit 30 senses this and turns on the light emitting diodes 44. On the contrary, when the voltage difference between the thermistors 60a and 60b is changed from the inequality condition to the equality condition by the external condition, the failure detection circuit unit 30 detects this and turns off the light emitting diode 44. Since the input voltage varies depending on the type of switch or switchboard, the range of the output voltage for turning on the light emitting diode is changed depending on the type of switchboard or switchboard. For example, when the input voltage is 13 to 17V, the range of the output voltage for turning on the light emitting diode is 23 to 30V.

In other words, when crosstalk occurs in the subscriber line, excessive current (I) flows in the subscriber line, thereby increasing the internal resistance of the first and second thermistors 60a and 60b, and also due to the effect of the line resistance. The voltage at both ends of MDF) is the product of the current I and the internal resistance of the first thermistor, the product of the current I and the internal resistance of the second thermistor, and the product of the current I and the line resistance. . At this time, when the positive line voltage of the subscriber line is about 6.5V or more higher than the negative line voltage, the first transistor 31 is short-circuited and thus the collector voltage of the first transistor 31 is negative. Since the voltage becomes substantially the same as the line voltage and the emitter voltage of the second transistor 32 becomes higher than the collector voltage of the first transistor 31, the second transistor 32 is turned on. The collector current of the second transistor 32 operates the photo coupler 43 through the fourth resistor 38.

Then, the light emitting diode 44 is turned on according to the operation of the photocoupler 43 mounted on the warning display module 40. In other words, the photocoupler 43 is operated by the current transmitted from the failure detection circuit unit 30. That is, the photocoupler 43 is operated so that the first light emitting diode 44 emits light by a current input from the collector of the second transistor 32 through the fourth resistor 38. In this case, since the photocoupler 43 cannot directly drive the light emitting diode 44 due to its characteristics, the photocoupler 43 operates the light emitting diode 44 by configuring a Darlington circuit through the third transistor 45.

As described above, the device of the present invention detects an abnormal signal generated due to crosstalk, leakage current, loss of internal function of the protector, and the like. In operation, the light emitting diode 44 is turned on.

7 is a circuit diagram of a warning display module of a communication line failure detecting apparatus according to an embodiment of the present invention. 8 is a front view illustrating an example of a situation room panel in which a signal detected by a communication line failure detecting apparatus according to an embodiment of the present invention is displayed on a corresponding light emitting diode.

As shown in FIG. 7, the signal detected from the failure detection circuit unit 30 mounted on the subscriber board 20 corresponds to the warning display module 40 through the first connector 23 and the second connector 41. The photocoupler 43 is operated. Then, the third transistor 45 is turned on by the output signal of the photocoupler 43, and the light emitting diode 44 is turned on by an external power source. In the drawing, 100 sensing circuits comprising a port coupler 43, a light emitting diode 44, and a third transistor 45 are coupled in parallel.

This situation is also displayed on the situation room panel 50 at the same time. That is, as illustrated in FIGS. 7 and 8, a signal detected by the failure detection circuit unit 30 of the subscriber board 20 is displayed through the alarm circuit 50a of the status panel 50. The alarm circuit 50a includes one end connected to a predetermined external power source, a second light emitting diode 51, a fourth transistor 52, and an alarm 53.

Referring to the operation by the above configuration, when the second light emitting diode 51 is operated at substantially the same time as the operation of the first light emitting diode 44, the fourth transistor 52 is turned on and the alarm (Alarm), etc. by the external power source The voice alarm device 53 is operated. In other words, when at least one of the first light emitting diodes 44 is operated and the second light emitting diodes 52 are operated, the potential difference between the base of the fourth transistor 52 and the emitter becomes 0.7 V or more. 47 is turned on and the voice alarm device 53 such as an alarm is activated.

Therefore, the manager of the subscriber line can immediately know the situation and the location of the accident in case of an accident such as an abnormality of the subscriber line or the loss of the function of the protector itself. In particular, the position of the accident protector can be more easily located through the light emitting diode of the modular device. Can be identified.

Meanwhile, laser diodes or the like may be used for the first and second light emitting diodes 44 and 51 described in the above embodiment. For reference, in FIG. 8, reference numeral 54 denotes each subscriber board number, and reference numeral 55 denotes each subscriber acceptance number.

As described above, according to the present invention, the subscriber line or the protector itself is immediately activated by the operation of the light emitting diode of the module of the fault monitoring circuit when an accident such as crosstalk of the subscriber communication line, leakage current, overvoltage, overcurrent, and failure of the protector itself occurs. By making it easy to check whether there are any abnormalities, it is possible to promptly take measures before a failure report is made, thus reducing civil complaints, reducing manpower, improving the quality of the infrastructure network and high-speed data communication, and improving service quality and maintenance costs. It is effective to secure savings and reliability.

Furthermore, if the call quality falls below a certain line due to the aging of the subscriber communication line, the grounding of the line, the deterioration of the function of the protector, and the occurrence of abnormality, the subscriber LED light is turned on and the user can quickly recover. have.

In addition, by installing a voice alarm signal such as an alarm to the situation room panel together with a visible alarm such as a light emitting diode, there is an advantage that it is possible to cope with the failure of the subscriber line or protector very quickly and very effectively.

Claims (3)

Communication line for installing thermistors or thermistors and aristors and circuit-protected separate protector on the subscriber board in the switchboard to protect the exchanger from overvoltage and overcurrent flowing from the subscriber transmission line or from crosstalk, leakage current, and malfunction of the protector. In the furnace failure detection device, A protector coupling portion 22 having five holes 21 into which a pair of input terminals of the protector, a pair of output terminals and a center dummy terminal are fitted, and a first connector attached to at least one end of the longitudinal direction; (23) and a plurality of fault detection circuit sections (30) each consisting of electrical elements circuitally mounted between the holes (21) of each protector coupling section (22) to be connected to a thermistor of the protector, and A subscriber board (20) having a conductive wiring pattern (31) printed on the surface to transmit a signal sensed by the fault detection circuit unit (30) to a corresponding port of the first connector (23); And A second connector 41 attached to one end of the subscriber board 20 so as to be electrically coupled to the first connector 23 of the subscriber board 20, and an external power supply and an alarm circuit 50a of the situation room panel 50. A plurality of photocouplers 43 each operated by a third connector 42 to be operated, and currents for fault detection signals inputted from the fault detection circuit unit 30 through the connectors 23 and 41, and the respective ports. Communication line characterized in that it comprises a warning display module 40 having a plurality of transistors 45 for emitting the corresponding first light emitting diodes 44 through an external power source in accordance with the operation signal of the coupler (43) Fault detection device. The method of claim 1, The failure detection circuit unit 30, A first transistor 31 and a second transistor 32 capable of passing an input voltage of 23V or less and 30V or more in accordance with the voltage change of the subscriber line; Pin diodes 33 and 34 connected between the collector of the first transistor 31 and the negative line of the subscriber line and between the emitter of the second transistor 32 and the positive line of the subscriber line, respectively; A first resistor (35) having a resistance value of the subscriber line; A second resistor (36) connected to both ends of a subscriber line with the first resistor (35) for distributing a voltage; A predetermined voltage value (for example, 23 V) of a subscriber line connected to the contacts of the first resistor 35 and the second resistor, the emitter of the first transistor 31, and the base of the second transistor 32; A third resistor 37 for controlling below); And A fourth resistor disposed between the collector of the second transistor 32 and the photocoupler 43 to pass a proper current to the photocoupler 43 in a predetermined voltage value range (for example, 23 to 30 V) of the subscriber line. Communication line failure detection device comprising a (38). The method according to claim 1 or 2, The alarm circuit 50a of the situation room panel 50, A second light emitting diode (51) turned on or off simultaneously with the first light emitting diode (44); A transistor 52 electrically connected to the second light emitting diode 51 when the second light emitting diode 51 is turned on; And And an alarm (53) for sounding a voice warning when the transistor (52) is turned on.