KR101527130B1 - Multi terminals tester - Google Patents

Abstract

An embodiment of the present invention relates to a tester to distinguish multi-terminals, which may allow numbers for the cables to a terminal box, a panel board, a distributing board or the like, which are installed at multiple positions, to be rapidly and accurately measured. The tester to distinguish multi-terminals according to an embodiment of the present invention comprises: each first connector part, which is included in each power facility installed at multiple positions, respectively, and is connected to one end of a cable, to which each number is set in order to correspond to the power facility, of multiple cables having each number set previously thereto; each reference connector part, which is connected to one end of a cable, to which a reference number in common with the power facilities is set, of the multiple cables; a master device including a cable distinguishing part having a plurality of resistant elements connected between the ends of neighboring cables, respectively; a power supplying part supplying power; a second connector part connected to the other ends of the plurality of cables to be connected with respective power facilities; a switch part inputting a pulse signal to a desired cable in order to measure the state of the cable; a number determining part determining a number for a cable connected with the resistance element by using the output value of the resistance element respectively to the pulse signal; a number output part outputting the number for the cable determined by the number determining part; and a test device including a control unit, which controls the operation of each part and sets each cable number to the plurality of cables.

Description

Multi-location Tester {MULTI TERMINALS TESTER}

One embodiment of the present invention is to provide an electric wire and a cable which are divided into a passageway in a communication work such as a terminal box, a server LAN port, a hub and a router, an electric work such as a distribution board, an electric panel wire or a cable, Quot; and " multi-location " testers.

Generally, cables are divided into several places in telecommunication works such as terminal box, server LAN port, hub, and router. In addition, electric or control works are installed by dividing electric wires and cables to various places in distribution panel and control box respectively. In most cases, the same kind of cable is installed and it is difficult to distinguish. However, the inner core wire can easily distinguish the color indicated.

In particular, the LAN line is an RJ 45 modular jack and is numbered according to color. In addition, two or more cables installed in the electric distribution panel are colored.

In order to determine the number of these works, it is necessary to find out where the cables in each box are installed.

Such cables are widely used not only in newly constructed apartments, multi-family houses and buildings, but also in work sites for remodeling and repairing existing buildings.

Especially, it is very important to check the condition such as open, short, and cable number of such a cable. Conventionally, various kinds of cable testers have been proposed as follows.

The most basic thing is that cable tester for checking one cable abnormality repeats the same operation by connecting two ends of cable through each equipment and radio by two workers. In this case, since many cable numbers must be checked and checked one by one, it takes a long time to work, and the cable number may be forgotten during the work, which reduces the reliability and efficiency of the work.

The cable tester, which uses the frequency of the bundle of cables to find the corresponding cable, combines the tone testers, the interphone and the jack tester together by a pair of two operators as in the case of the above tester, And the corresponding cable is selected through a beep sound. In this case, it can only be assumed that the cable is located at a certain position in the bundle of cables bundled together. In order to find the cable correctly, it is necessary to connect the cable to the connector of the tester again.

As described above, the conventional cable tester has a limitation in checking the state of the cable reliably and promptly and easily.

In particular, if a large number of cables are to be checked at a distance from each other, it is most important that the respective cable numbers be checked accurately and quickly. In the conventional case, two persons are combined into one set, The cable number must be manually displayed by labeling, so that the operation time is consumed for a long time, and the accuracy is very low, so that there is a problem that reliability and efficiency are greatly deteriorated in the work.

In addition, there is a problem in that the work efficiency is lowered due to the wasted manpower and the wage cost is increased because the worker must work with one pair at all times.

Korean Patent Registration No. 10-0937224 'Multi-tester for easy identification of cable number' Registered patent publication No. 10-0589221 'LAN cable multi-tester'

One embodiment of the present invention provides a multi-location distinction tester capable of quickly and accurately measuring the number of cables such as terminal boxes, distribution boards, or switchboards installed at a plurality of points.

The multi-location distinction tester according to an embodiment of the present invention is provided in a power supply facility provided at each of a plurality of points, and one end of a cable to which each number is set corresponds to the power supply facility among a plurality of cables, A reference connector portion to which one end of a cable having a reference number set in common to the power supply equipment among the plurality of cables is connected and a plurality of resistance devices respectively connected between one end of the adjacent cable A master device having a cable discriminating portion; A second connector unit connected to the other end of the plurality of cables so as to be connected to the respective power supply facilities, and a controller for inputting a pulse signal to a desired cable to measure the state of the numbered cable A number determination unit for determining a cable number to which the resistance element is connected with an output value of the resistance element with respect to the pulse signal; a number output unit for outputting the cable number determined by the number determination unit; And a control unit for controlling the operation of each component constituting the apparatus, and setting a number of the cable for each of the plurality of cables.

Wherein the plurality of cables includes a first cable connected to the reference connector and set to 1 and a second cable connected to the connector and set to 2 to N, And a second resistance element to an (N-1) th resistance element connected between one end of the cable set to No. 2 and one end of the cable set to No. 2, can do.

Wherein the first resistance element has a capacitance of a product of a first reference value and a variable value, and the second resistance element to the (N-1) th resistance element have a capacitance of a product of a second reference value and a variable value, The second reference value and the variable value are constants, and the capacitance of the first resistance element may be greater than the capacitance of each of the second resistance element to the (N-1) th resistance element.

Wherein the reference connector includes a first reference connector provided separately from the power supply facility and a second reference connector provided to the power supply facility, the first reference connector being electrically connected to the second reference connector, And may be connected to one end of the cable of the connector unit through the resistance element.

Wherein the number determination unit comprises: a level measurement unit for measuring a voltage level at which a current amount included in the pulse signal is converted through the resistance element; An operation unit for calculating a resistance value included in the voltage level; And a number discrimination unit for discriminating the number of the cable to which the resistance element having the resistance value is connected.

When the pulse signal is applied to a desired cable by the switch unit, the control unit may control the number output unit to output a signal indicating that the desired cable is disconnected when the output value of the corresponding resistance device is infinite.

The second connector portion may be configured as an RJ 45 jack.

The multi-place distinction tester according to an embodiment of the present invention can quickly and accurately measure the number of each cable by using the output value of the resistance element connected between the ends of the cable such as the terminal box, the distribution board, or the switchboard installed at a plurality of points.

1 is a diagram schematically showing a multi-place distinction tester according to an embodiment of the present invention.
2 is a circuit diagram showing a master device of a multi-place distinction tester according to an embodiment of the present invention.
FIG. 3 is a circuit diagram showing a case where a cable having various core wires is applied in the master device of FIG. 2; FIG.
4 is a circuit diagram of a master device of a multi-place distinction tester according to another embodiment of the present invention.
5 is a circuit diagram showing a master device of a multi-place distinction tester according to another embodiment of the present invention.
6A and 6B are circuit diagrams showing a master device of a multi-place discrimination tester according to another embodiment of the present invention.
7A and 7B are diagrams showing a master device of a multi-place distinction tester according to another embodiment of the present invention.
8 is a diagram showing an example of application of a master device of a multi-place distinction tester according to another embodiment of the present invention.
9A and 9B are circuit diagrams showing a master device of a multi-place distinction tester according to another embodiment of the present invention.
10A and 10B are circuit diagrams showing a master device of a multi-place distinction tester according to another embodiment of the present invention.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. Also, the terms "part," " module, "and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

2 is a circuit diagram showing a master device of a multi-place distinction tester according to an embodiment of the present invention, and Fig. 3 is a circuit diagram of a multi- FIG. 4 is a circuit diagram showing a master device of a multi-place distinction tester according to another embodiment of the present invention, and FIG. 5 is a circuit diagram showing another embodiment of the present invention FIGS. 6A and 6B are circuit diagrams showing a master device of a multi-place distinction tester according to another embodiment of the present invention, and FIGS. 7A and 7B show another embodiment of the present invention FIG. 8 is a diagram showing a master device of a multi-place distinction tester according to an example. FIG. 9A and 9B are circuit diagrams showing a master device of a multi-place distinction tester according to still another embodiment of the present invention, and Figs. 10A and 10B are diagrams showing a master device according to another embodiment of the present invention Is a circuit diagram showing the master device of the multi-place discrimination tester.

Referring to FIG. 1, the multi-place distinction tester according to an embodiment of the present invention is an apparatus that can easily identify a cable number such as a terminal box, a distribution board or an electric distribution board installed at a plurality of points, ) Is a device that makes it easy for one person to find a power supply facility that is located at a plurality of points.

To this end, the multi-site location tester comprises a master device 10 connected to one end of the cable 1 to be checked and a test device 20 connected to the other end of the cable 1. The multi-site location tester connects one end of a plurality of cables 1 to the master device 10 and the other end of the cables 1 to the test device 20, ) To determine the cable (1).

Hereinafter, with reference to FIG. 2 to FIG. 10B, a method of distinguishing the structure of the master device 10 and the cable 1 from the master device 10 in the present multi-location distinction tester will be described in more detail. 11, 12, 13, 14, 15, 16, 17, 18, 19, 30, 32, reference connector portions 111, 130, 131, 122 The first connector portions 110, 140, 141, 123, 133, 143, 145, 146, 147, 340, the cable distinguishing portions 112, 150, 151, 124, 134, 144, 155, 165, 175, 350 and test apparatuses 20, 40, 41 are denoted differently.

Referring to FIG. 2, the master device 10 is provided in a power facility installed at each of a plurality of points (for example, one point to N points), and corresponds to a power facility among a plurality of cables A reference connector unit 130 to which one end of a cable having a reference number set in common to the power supply equipment among the plurality of cables is connected, And a plurality of resistance elements connected between ends of the plurality of resistive elements. In other words, the master device 10 includes a plurality of power supply facilities, one end of which is connected to a common connector unit 130, a first connector unit 140 connected in series, One end of the cable constituting the connector section 140 is connected to a plurality of resistance elements constituting the cable distinguishing section 150, respectively.

The plurality of cables are connected to a connector (i.e., a numbered cable terminal) connected to a reference connector (i.e., a common terminal) (I.e., a numbered terminal core wire).

The plurality of resistive elements may include a first resistance element connected between one end of the cable set to 1 and 2 and a second resistor connected between one end of the cable set to No. 2 and N, Element to the (N-1) th resistance element.

The first resistive element has a capacity of a product of a first reference value and a variable value. The second resistance element to the (N-1) th resistance element have a capacitance of a product of a second reference value and a variable value. Here, the first reference value (1.5 in Fig. 2) is a prime number, and the second reference value (1 in Fig. 2) and the variable value (R in Fig. In addition, the first reference value and the second reference value may be arbitrarily selected by the user as the most discriminating resistance value in consideration of the error of resistance and the like. In addition, the variable value may be conveniently divided as a multiple of 10 (10, 100, 1000, etc.) and may be a large integer conveniently output through the tester 20, but is not limited thereto. Preferably, the capacitance of the first resistance element may be larger than the capacitance of each of the second resistance element to the (N-1) th resistance element.

The reference connector 130 includes a first reference connector (common terminal in FIG. 2) provided separately from the power supply facility and a second reference connector (first terminal to Nth terminal in FIG. 2) . At this time, the first reference connector may be electrically connected to the second reference connector, and may be connected to one end of the cable of the first connector unit 140 through a resistance element.

In other words, the master device shown in FIG. 2 has a 1.5R.OMEGA. Resistance between the first reference connector, which is a common terminal, and the first cable, and the first and second cables, and the N-1 cable Connect RΩ resistors between N cables. At this time, when the resistance between each cable provided in the master device 10 is measured using the test apparatus 20, 2.5R? Between the common terminal and the second cable, 3.5R? Between the common terminal and the third cable , 4.5R? Between the common terminal and the fourth cable, and a regular resistance value is obtained in the same manner between the cables of the latter. Therefore, the front part of the resistance measurement value matches the terminal number, and the line can be immediately found.

At this time, there is an error between the line resistance and the resistance element, but even if this is taken into consideration, it can be known by an approximate value. However, in order to correct the line resistance, a parallel or variable resistor (series or parallel) may be provided for each resistor to correct the line resistance. The details of the correction of the line resistance will be described later.

Referring to FIG. 3, it is possible to distinguish whether a core wire (such as a LAN cable) or a pair (twin core wire) discriminated by color is connected at the same time as in the above-described manner. That is, the master device 11 can use a multi-core wire (a LAN cable or the like) classified by the same color and the like, and can discriminate and disconnect the multi-core wire having different numbers of core wires through the testing device 20 . For example, four wires, six wires, eight wires, and the like are mixed, so that even if the same core wire is used, the cable number can be distinguished, and whether or not the wire is disconnected can be also confirmed.

As another example, referring to FIG. 5, the master device 15 may connect the resistive elements connected between the ends of the cable in series or parallel in various ways. At this time, the reference connector 135 and the numbered first connector 145 are connected to each other.

222 Reference terminal 223 First connector terminal 224 Cable distinction 225 Serial variable resistor switch 226 Serial variable resistor terminal 227 Parallel variable resistor terminal 228 Terminal (Tester connection) 229a Multi secondary terminal 229b Multi connection switch

As another example, as shown in FIG. 4, the master device may be configured as a multi-master device connected to each other via a multi-connection line. Each of the master devices 22, 23 and 24 is provided with multi-switch devices 229b, 239b and 249b for constituting a multi-master device. When the multi-master device is to be configured, the multi-switch devices 229b and 239b 249b are turned on to the multi-secondary terminals 229a, 239a, 249a, and when the master device is to be configured as a single master device, the multi-selector switches 229b, 239b, 249b are turned on to the single terminal. Here, the reference connector portions 222, 232 and 242 serving as the common terminals and the first connector portions 224, 234 and 244 serving as the cable terminals can be connected to the multi-selector switches 229b, 239b and 249b, respectively. Between the reference connectors 222, 232 and 242 and the multi-selector switches 229b, 239b and 249b, shorting check terminals 228, 238 and 248 connected to the test apparatus 20 may be further provided .

In other words, the master device in Fig. 4 has a multi-terminal and a multi-terminal in the multi-changeover switches 229b, 239b and 249b so as to be used in a multi-connection between the device and the apparatus, Can be found. Of course, a large number of terminals may be provided, or terminals including only R? Resistance may be connected. If the RΩ resistors continue to be connected in series, a very large number of core wires can be easily distinguished. In the present embodiment, the first master device is connected to 1.5R? With the multi-selector switches 229b, 239b and 249b alone, and the multi-selector switches 229b, 239b and 249b are connected to the second and third master devices, .

6A and 6B together, when the master device 16 is short-circuited to the common terminal at the other terminal except for the common terminal and the cable terminal 1, a parallel circuit is constituted between the common terminal and the cable terminal No. 1 . Therefore, the initial resistance value of cable terminal No. 1 and common terminal is reduced by 1.5RΩ. That is, if a tester is installed between the common terminal and the cable terminal 1 and connected to this master device, the presence or absence of a short circuit can be confirmed immediately. For example, the parallel resistance value at the second point of short circuit becomes (1.5R * R) /1.5R + R. In addition, the parallel resistance value at the second open third point short circuit becomes (1.5R * 2R) /1.5R + 2R. In addition, the parallel resistance value at the time of the (N-1) -th opening and the short circuit at the N-th point becomes (1.5R * (N-1) R) /1.5R + (N-1) R. In this case, the unit is?. Here, if the value of R is a multiple of 10 (10, 100, 1000, etc.), it can be easily confirmed through a test apparatus. Of course, even if it is not a multiple of 10, it can be set as user-friendly, and the resistance value can be adjusted by using a serial or parallel terminal that can be varied for each resistance.

The master device in FIG. 4 differs from the preceding embodiment in that at least one unit resistance element is connected in series with the resistor element or the series variable terminals 226, 236 and 246 and the serial variable switches 225 and 235 , 245 may be used to vary the resistive capacity. At this time, the resistance element may be connected in series or in parallel with an error corrector (not shown) composed of a resistance element having a different capacitance or a variable resistance element to correct the line resistance. Further, each master device may be provided with parallel variable resistor terminals 223, 233, and 243 in each resistor for correction of line resistance or resistance error value.

9A, the second resistive element to the N-th resistive element except for the first resistive element provided in the master device 30 constitute one auxiliary master device 30a, (30a) may be configured in series. At this time, the connection between the master device 30 and the auxiliary master device 30a and between the auxiliary master devices 30a and 31 may be connected to the reference connection line 301 via a multi-connection line or a male-type terminal.

In addition, as shown in FIG. 9B, the auxiliary master device 30a of FIG. 9A may be composed of the unit auxiliary master devices 32a, 32b, 32c,... 32N for each resistance element. At this time, between the master unit 32 and the unit auxiliary master units 32a, 32b, 32c, ... 32N, the unit auxiliary master units 32a, 32b, 32c, May be connected via a multi-connector or female terminal.

Referring to FIGS. 7A and 7B, the master devices 18 and 19 of the present invention may be constituted by one case 181 and 191, respectively. For example, on the front surfaces of the cases 181 and 191, there are provided a connector portion in which one end of a cable is sequentially connected and a short circuit check tester terminal block 185 and 194, A plurality of secondary terminals 183 and a plurality of connection terminals 193 are provided in the case 18 and 19. A plurality of resistance elements are adjacent to the case 18 and 19, And a printed circuit board (not shown) connected between one ends of the cables. At this time, the connector unit can be connected to the modular jacks 4, 6, 8, and the like, and has two arbitrary lines (for example, No. 1 and No. 2) therein.

The connector portions of the master devices 18 and 19 are represented by a bolt tightening type. However, the present invention is not limited thereto, and various modifications such as a one-touch type and a European type, and a LAN tester, have.

Referring to FIG. 8, when the connector portion is constituted by a modular jack, the lead wire end portion of the test apparatus can be easily inserted at the end of the modular jack. In other words, if the modular jack is plugged into the RJ-45 (8 pin) in the telephone cradle not at point 1, and the test device is plugged into the rear of the modular jack, the resistance value between the cables can be checked directly through the test device. As shown in Fig. 12, it is possible to use a device having only a resistance of 0.5R in the front side and a unit of 0.5R in the remaining units.

The above-described method can be applied to Figs. 10A and 10B.

10A and 10B, the connector unit connected to the test apparatuses 40 and 41 includes the switching circuits 401 and 411 and performs on / off operations of the push buttons provided in the test apparatuses 40 and 41 It is possible to check the disconnection or the resistance value between the cables, and the user can immediately know the cable number through the resistance value. For example, the second terminal of FIG. 10B is short-circuited when pushing the push button which is normally open in each pair, and when the resistance value of the test terminal 41 is displayed and the resistance value of the terminal is displayed, If it is infinite, it can be recognized that it is disconnection. At this time, when you put your hand back, it will open again. In this way, other lines can be checked in turn as well. At this time, if the resistance values measured by inserting the test apparatuses 40 and 41 into the master device are infinite, the cable may be disconnected.

The test apparatus 20 is provided at the other end of the cable 1 connected at one end to the master apparatus 10 so that the resistance value of a plurality of resistors provided in the master apparatus 10 can be measured to discriminate the cables . At this time, when the plurality of resistance elements are connected in series, the test apparatus 20 can easily distinguish the cables by the sum of the measured resistance values.

1, the test apparatus includes a power supply unit 210, a second connector unit 220, a switch unit 230, a number determination unit 240, a number output unit 250, (260).

The power supply unit 210 supplies a DC power of a predetermined voltage (for example, 9 to 12 V) to the test apparatus. The power supply unit 210 performs a test through an external power supply or an internal battery through a constant voltage circuit And stably supplies power to the device (20).

The second connector 220 is a device for connecting the other end of the cable 1, which is opposite to the one end of the cable 1 connected to the master device 10. For example, the second connector part 220 is connected to the same two wires of the same core as the two core wires of the cable 1 connected to the first connector part 120, with the same polarity. At this time, the second connector part 220 is formed of an electric wire extending from two connection terminals. In the end of the electric wire, a socket type for facilitating connection with the cable 1, a bolt tightening device, Various connection means according to the present invention may be provided. Preferably, the first connector portion may be configured as an RJ 45 jack.

The switch unit 230 is a device for inputting a pulse signal to a desired cable to measure the state of the cable. To this end, the signal level of the input side of the switch unit 230 is usually 5 V, and when the switch connected to the desired cable is pressed, the voltage is 0 V, which is recognized as a check start signal and the control unit 260 outputs an ON signal.

The number determiner 240 is a device for determining a cable number to which a resistance element is connected as an output value of a resistance element for a pulse signal. That is, the number determiner 240 determines the state of the cable by using the input / output value of the switch 230, and determines the number of the cable.

For this, the number determination unit 240 includes a level measurement unit 241, an operation unit 242, and a number determination unit 243.

The level measuring unit 241 is a device for measuring a voltage level at which a current amount included in a pulse signal is converted through a resistance element. That is, the level measuring unit 241 measures a voltage level which is an output value of the resistance element with respect to the pulse signal.

The operation unit 242 is a device for calculating a resistance value included in the voltage level measured by the level measurement unit 241. [ That is, the calculating unit 242 calculates a resistance value of a resistance element connected between ends of a cable connected to the master device 20 by using an algorithm as described in detail with reference to FIGS. 2 to 10B.

The number determiner 243 is a device for determining the number of a cable to which a resistance element having a resistance value is connected. That is, the number determiner 243 determines the cable number using the resistance value calculated using the resistance value calculation algorithm described above.

The number output unit 250 is a device for outputting the cable number determined by the number determination unit 240. The number output unit 250 outputs the cable number determined by the number determination unit 240 so that the user can confirm the number. The number output unit 250 receives the number or alphabet data and the digit number data input from the control unit 260, The corresponding cable number is output. The number output unit 250 outputs one or more alphabetic characters such as oPEn (short line) and Short (short) indicating the state of the cable 1 under the control of the control unit 260, It is a matter of course that an alphabet letter of a kind can be expressed. It is needless to say that the method of outputting the numbers and alphabetic characters of the cable 1 is not limited to the embodiments of the present invention, and may be variously applied. The number output unit 250 may be a combination of segments or a variety of display devices such as a liquid crystal display (LCD) and a light emitting diode (LED).

The control unit 260 controls the power supply unit 210, the switch unit 230, the number determination unit 240, and the number output unit 250. The control unit 260 controls various electronic devices And receives a logic signal value to be performed by the number determination unit 240 and controls the number output unit 250 to output a result according to the signal value. For example, when a pulse signal is applied to a desired cable by the switch unit, the control unit may control the output unit to output a cable disconnection state when the output value of the corresponding resistance device is infinite.

In addition, the controller 260 may set a cable number for each of the plurality of cables, and then transmit the cable number to the master device 10. Although not shown, the controller 260 may further include a number setting unit and a data transmitting unit.

The number setting unit is for setting a cable number, and can be operated by various numbers (for example, up to 1024 times using 10 bits) by the user's operation. At this time, it is desirable that the cable number is set to be the same as the number in the power supply facility or the room inside the building. For example, in case of 103, if the cable number is 3, The speed can be remarkably improved. The number setting unit reads the number set by the user, converts the number into a communication code signal value, and provides the communication code signal value to the data transmission unit.

The data transmission unit transmits the cable number set by the number setting unit to the master device 10 provided at one end of the cable 1 through the wire / wireless communication network. For example, the communication scheme used in the data transmission unit may be a power line and a two-line communication scheme, and the power line and two-line communication scheme can maximize convenience in use in the present invention.

The above-mentioned multi-site discrimination tester constructed as described above distinguishes the case of the same color wires (including communication lines) of three or more lines which are difficult to find alone by one person, or the wires (including communication lines) Contrast). Accordingly, according to the multi-site location tester, it is possible to complete the work in a short time with only one worker while the work for two or more workers takes a long time, and it is possible to reduce the wage cost due to the improvement of the work efficiency.

The present invention is not limited to the above-described embodiment, and various modifications and changes may be made without departing from the scope of the present invention as defined in the appended claims. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

1: Cable 20, 40, 41: Test device
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 30,
110, 140, 141, 123, 133, 143, 145, 146, 147, 340:
111, 130, 131, 122, 132, 142, 135, 136, 137, 330:
112, 150, 151, 124, 134, 144, 155, 165, 175, 350:
210: power supply unit 220:
230: Switch part 240: Number judgment part
241: level measuring section 242:
243: Number determination unit 250: Number output unit
260:

Claims (7)

A first connector unit provided at each of the plurality of points and connected to one end of each numbered cable corresponding to the power supply unit among a plurality of cables each having a preset number; A master device having a reference connector portion to which one end of a cable having a reference number common to the power supply equipment is connected and a cable discriminating portion having a plurality of resistance devices respectively connected between one end of the adjacent cable; And
A second connector part connected to the other ends of the plurality of cables to be connected to the respective power supply facilities, and a controller for inputting a pulse signal to a desired cable in order to measure the state of the numbered cable A number determination unit for determining a cable number to which the resistance element is connected with an output value of the resistance element with respect to the pulse signal; a number output unit for outputting the cable number determined by the number determination unit; And a controller for controlling the operation of each component constituting the plurality of cables, and setting a cable number for each of the plurality of cables.
The method according to claim 1,
Wherein the plurality of cables include a first cable connected to the reference connector and set to 1, and a second cable connected to the first connector and set to 2 to N,
The plurality of resistive elements may include a first resistance element connected between one end of the cable set to 1 and 2 and a second resistor connected between one end of one end of the cable set to No. 2 and N, Element to an (N-1) th resistance element.
The method of claim 2,
Wherein the first resistance element has a capacity of a product of a first reference value and a variable value,
And the second resistance element to the (N-1) th resistance element have a capacitance of a product of a second reference value and a variable value,
Wherein the first reference value is a prime number, the second reference value and the variable value are integers,
Wherein the capacitance of the first resistance element is larger than the capacitance of each of the second resistance element to the (N-1) th resistance element.
The method according to claim 1,
Wherein the reference connector includes a first reference connector provided separately from the power supply facility and a second reference connector provided to the power supply facility,
Wherein the first reference connector is electrically connected to the second reference connector and is connected to one end of the cable of the first connector through the resistance element.
The method according to claim 1,
The number determiner
A level measuring unit for measuring a voltage level at which a current amount included in the pulse signal is converted through the resistor element;
An operation unit for calculating a resistance value included in the voltage level; And
And a number discrimination unit for discriminating the number of the cable to which the resistance element having the resistance value is connected.
The method according to claim 1,
Wherein when the pulse signal is applied to the desired cable by the switch unit, the control unit can control the output unit to output the desired cable through the number output unit when the output value of the corresponding resistance device is infinite. Distinctive tester.
The method according to claim 1,
And the second connector portion comprises an RJ 45 jack.

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