KR102611471B1 - Plug for communication and patch cord having the same - Google Patents

Abstract

The present invention relates to the connection state between the network switch, the patch panel and the communication equipment or inside the communication room in a communication system consisting of a network switch connected to an external communication network, a patch panel connected to the network switch, and a communication equipment connected to the patch panel. It relates to a communication plug that provides a lighting indexing function to easily determine the connection position of the patch cord and a communication patch cord having the same.

Description

Communication plug and communication patch cord having the same {PLUG FOR COMMUNICATION AND PATCH CORD HAVING THE SAME}

The present invention relates to a communication plug and a communication patch cord having the same. More specifically, the present invention relates to the connection state or communication between the network switch, the patch panel, and the communication equipment in a communication system consisting of a network switch connected to an external communication network, a patch panel connected to the network switch, and a communication equipment connected to the patch panel. It relates to a communication plug that provides a lighting indexing function to easily determine the connection position of the patch cord inside a room, and a communication patch cord having the same.

The indoor communication system may be composed of a network switch connected to an external communication network, a patch panel connected to the network switch, and a communication device in the form of a consumer-side modular jack connected to the modular jack of each patch panel with a communication cable.

When installing or maintaining such a communication system, in order to enable connection to an external communication network through each communication outlet, the patch panel and the communication outlet are connected with a communication cable, and each patch panel is connected to a network switch connected to the external communication network. .

In this communication system, network switches and patch panels can generally be connected with UTP or STP cables (hereinafter referred to as 'communication cables') and patch cords including RJ45 standard plugs on both ends of the communication cable. Additionally, the patch panel can be connected to a communication outlet provided in the consumer space to form a communication line.

Additionally, the communication cable may be an Ethernet cable used in a Power Over Ethernet (POE) system used for communication and power supply.

During the installation, maintenance, or repair process, such a communication system checks the connection status between network switches, patch panels, and communication equipment, or whether there is any abnormality in the communication lines connecting each.

In the past, a method was used to build a communication system by connecting a network switch, a patch panel, and a communication outlet, and then connect a tester to the communication outlet and check for abnormalities in the communication line from the network switch to the communication outlet.

Depending on the size of the communication room, hundreds to tens of thousands of patch cord-type communication cables are complexly installed inside the room, connecting network switches and patch panels.

Therefore, when a worker performs a test by plugging a tester into a communication outlet to check for abnormalities in each communication line, in relation to the communication line, whether the patch cord of the network switch and patch panel in the communication room is connected and the corresponding It is nearly impossible to specify the connection location of a network switch.

The present invention relates to the connection state between the network switch, the patch panel and the communication equipment or inside the communication room in a communication system consisting of a network switch connected to an external communication network, a patch panel connected to the network switch, and a communication equipment connected to the patch panel. The problem to be solved is to provide a communication plug that provides a lighting indexing function that allows easy determination of the connection position of the patch cord, and a communication patch cord equipped with the same.

In order to solve the above problem, the present invention provides a communication plug that is mounted on the end of a communication cable having a plurality of pairs of communication lines and constitutes a communication patch cord, comprising: a housing; A light source unit connected between two of the communication lines; A resistance unit connected in series with the light source unit; A communication plug comprising a plurality of pairs of terminals connected to the plurality of pairs of communication lines, wherein the light source unit includes a first light emitting element of a first color and a second light emitting element of a second color in parallel. can be provided.

Additionally, the first light emitting device and the second light emitting device may be provided in one unit.

In this case, the light source unit may emit light in a third color that is a combination of the first and second colors when both the first and second light-emitting devices are turned on.

In addition, the first light-emitting device and the second light-emitting device constituting the light source unit may be LED devices in which directions of current that satisfy light-emitting conditions are different from each other.

Here, when connecting a network switch constituting a communication system with the patch cord and a patch panel, one plug of a pair of plugs provided at both ends of the patch cord is mounted on the patch panel and the other plug is connected. Depending on whether the device is connected to the network switch, when a test signal supplied from the patch panel to the patch cord is applied, both the first light emitting device and the second light emitting device may be turned on or only one light emitting device may be turned on.

Additionally, the plug may be provided at one end of the patch cord and a general plug may be provided at the other end.

In this case, the plug and the general plug satisfy the RJ45 standard, and the communication cable may have 4 pairs of communication lines.

In addition, the modular jack of the network switch is a transformer-type modular jack,

When the plug or the general plug is disconnected from the modular jack of the network switch, one of the first light emitting device and the second light emitting device may be turned on.

Here, the modular jack of the network switch is a transformer-type modular jack,

When the plug or the general plug is mounted on the modular jack of a network switch, the first light emitting device and the second light emitting device may be turned on together.

Additionally, the test signal may be a pulse signal whose voltage level is randomly changed into distinct values.

In this case, the test current is direct current and has a certain magnitude. It may be an overlapping signal of a direct current signal with a changing pulse signal with a voltage value of the opposite sign.

In addition, the plug further includes a boot into which the communication cable is introduced and mounted on the rear of the housing, and the housing or the boot may be made of a light-transmissive material.

Here, an opening may be formed in the housing so that the light source unit is exposed to the outside of the housing.

In addition, it further includes a substrate on which the light source unit and the resistance unit are mounted,

The light source unit and the resistance unit may be connected in a pattern on the substrate.

In addition, the test current can be supplied by mounting a tester on a communication equipment installed in a communication consumer space connected to the patch panel constituting the communication system.

In addition, in order to solve the above problem, the present invention provides a communication cable having 4 pairs of communication lines; And, it is possible to provide a communication patch cord including the above-described communication plug mounted on at least one end of the communication cable.

In this case, the communication cable may be a Power Over Ethernet (POE) cable used for communication and power supply.

In addition, in order to solve the above problem, the present invention includes the above-described patch cord for connecting the network switch and patch panel constituting the communication system; and a tester for providing a test signal through the patch panel, wherein the plug of the patch cord is connected to the modular jack of the network switch according to the lighting state of the first light emitting device or the second light emitting device constituting the light source unit. It is possible to provide a communication cabling management system characterized in that it is possible to check whether or not it is connected to.

According to the communication plug and the communication patch cord having the same according to the present invention, in a communication system consisting of a network switch connected to an external communication network, a patch panel connected to the network switch, and a communication tool connected to the patch panel, a network switch, It can provide a lighting indexing function that allows you to easily determine the connection status between the patch panel and communication equipment or the presence or absence of abnormalities in the communication lines connecting each.

1 shows a configuration diagram of a network communication system of the present invention.
Figure 2 shows one embodiment of a communication cable to which a communication plug and a communication patch cord including the communication plug according to the present invention are applied.
Figure 3 shows another embodiment of a communication cable to which a communication plug and a communication patch cord including the communication plug according to the present invention are applied.
Figure 4 shows an example of a test signal provided by connecting a tester to the communication apparatus of Figure 1.
Figures 5 and 6 show a circuit diagram of the patch cord plug of the present invention separated from one modular jack of a network switch and a circuit diagram of the lighting indexing state.
Figures 7 and 8 show a circuit diagram of the patch cord plug of the present invention mounted on one modular jack of a network switch and a circuit diagram of a lighting indexing state.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosure will be thorough and complete, and so that the spirit of the invention can be sufficiently conveyed to those skilled in the art. Like reference numerals refer to like elements throughout the specification.

Figure 1 shows a configuration diagram of the network communication system 1 of the present invention.

The network communication system 1 of the present invention includes a network switch 10 connected to an external communication network 60, a patch panel 20 connected to the network switch 10, and a communication tool connected to the patch panel 20 ( 30).

Here, the network switch 10 is a device with a data exchange (switching) function as a concentrator between terminals when configuring a local area network (LAN), and is connected to a router 70, etc. connected to the external communication network 60, or It is an L3 switch that performs the function of the network layer of OSI layer 7 and can be directly connected to an external communication network.

The network switch 10 can transmit input data from multiple communication devices 30 simultaneously. You can determine the address (MAC address) of the receiving terminal stored in the data frame and transmit data only to the port that the terminal is connected to. Such a network switch 10 and the communication equipment 30 can be connected by a patch panel 20.

The network switch 10 and patch panel 20 of this network communication system 1 are generally located in a communication room, and each communication device 30 is provided in a space of a separated communication consumer to provide a network for a PC, phone, printer, etc. Communication functions can be provided.

The patch panel 20 refers to a hardware unit including a collection of ports extending the communication port 30 in the network communication system 1. That is, the network switch 10 and the communication tool 30 can be connected via the patch panel 20, and the patch panel 20 and the communication tool 30 can be connected with a communication cable in the form of a patch cord. .

In Figure 1, one patch panel 20 is shown as being provided between the communication tool 30 and the network switch 10, but the patch panel 20 may be composed of a plurality of pieces.

In the past, there was no way to intuitively determine the connection status between the network switch 10, the patch panel 20, and the communication equipment, or the presence or absence of abnormalities in the communication lines connecting each.

In particular, inside a communication room, a large number of patch cords are connected, making it nearly impossible to distinguish or specify with the naked eye whether or not each connection is connected or where it is connected.

Therefore, the present invention makes it easy to check the connection status between the network switch 10, the patch panel 20, and the communication equipment or the presence or absence of abnormalities in the communication lines connecting each of the plugs 100 of the communication cable connected to the patch panel 20. A lighting indexing function can be provided to enable judgment.

In particular, the present invention can provide a lighting indexing function that can check the connection status and connection position of the network switch 10 and the patch panel 20 through the lighting of the plug of the patch cord 300 in a communication room. . In other words, it is possible to provide a function to identify whether the network switch 10 and the patch panel 20 are connected and the connection location through whether or not the light of the plug constituting the communication patch cord 300 is turned on or the color of the light. there is.

The plug constituting the communication patch cord 300 according to the present invention will be examined.

Figure 2 shows one embodiment of a communication cable 200 to which a communication plug according to the present invention and a communication patch cord 100 having the same are applied, and Figure 3 shows a communication plug according to the present invention and a communication patch cord 100 having the same. It shows another embodiment of a communication cable 200 to which a communication patch cord 100 is applied.

The communication plug and the communication patch cord 100 including the same according to the present invention can provide a lighting indexing function by including a light source unit 120.

As described above, inside the communication room, numerous patch cords connect the modular jacks of the network switch 10 and the patch panel 20, respectively.

In addition, when conducting a test by mounting the tester 50 on the communication apparatus 30 to determine whether or not there is an abnormality in the communication line shown in FIG. 1, the corresponding communication line is connected to the network from the patch panel 20 in the communication room. It is necessary to determine or specify whether the switch 10 is properly connected or its location, but there are limitations to the work with conventionally introduced methods.

However, in the present invention, when the patch cord connecting the network switch 10 and the patch panel 20 inside the communication room is normally connected in both directions by testing the communication tool 30 with a tester, the plug of the patch cord is Since it is necessary to distinguish between cases where it is connected only to the patch panel 20 or cases where the plug of the patch cord is connected only to the network switch 10, the present invention can provide an identification function to identify each case through a lighting indexing function. . First, the structure of the plug is explained.

The plug 100 constituting the communication patch cord 300 according to the present invention includes a housing 110; A light source unit 120 connected between two of the communication lines; A resistance unit 123 connected in series with the light source unit 120; and a plurality of pairs of terminals 130 connected to the plurality of pairs of communication lines, wherein the light source unit 120 includes a first light emitting element 121a of a first color and a second light emitting element 121b of a second color. can be configured in parallel in opposite directions.

The communication cable 300 constituting the communication plug and the communication patch cord including the same according to the present invention may be a 4-pair UTP or STP cable, and an RJ45 standard plug 100 is installed at one end of the communication cable 400. can be installed.

Such a communication patch cord has plugs at both ends and can be used to connect the network switch 10 and the patch panel 20, respectively.

Furthermore, the communication cable may be a Power Over Ethernet (POE) cable used for communication and power supply.

Additionally, the communication plug according to the present invention and the communication patch cord including the same may be mounted on at least one end of the UTP or STP cable 301 connecting the network switch 10 and the patch panel 20. Of course, the plug of the present invention that provides a lighting indexing function may be installed on both ends of the communication patch cord according to the present invention, but the lighting indexing function can be provided even if it is installed on only one side. Accordingly, the patch cord of the present invention may be equipped with a plug that provides the lighting indexing function of the present invention on one end of the communication cable and a general plug on the other end.

Of course, both the plug according to the present invention and the general plug can be configured as an Ethernet plug that satisfies the RJ45 standard.

The light source unit 120 may be equipped with two light-emitting elements with different light-emitting conditions depending on whether or not a network switch is connected in the communication room.

In order for the light source unit 120 mounted on the substrate 140 to provide an illumination indexing function, the housing 110 is made of a light-transmissive material, or the housing 110 is formed so that the light source unit 120 is exposed. An opening may be formed in

In addition, a boot (b) in which a communication cable is introduced and supported may be further provided at the rear of the housing 110 constituting the plug of the present invention. In this case, if at least one of the housing 110 or the boot (b) is made of a light-transmissive material, it can provide an illumination indexing function when the light source unit emits light.

The light source unit 120 includes two first light-emitting elements 121a and a second light-emitting element 121b connected in parallel, and the first light-emitting element 121a and the second light-emitting element 121b constituting the light source unit 120. 2 The light-emitting devices 121b may be configured to have different directions of current that satisfy the light-emitting conditions. This will be described later with reference to FIGS. 4 and 5. Additionally, the light source unit 120 may be provided in series with the resistance unit 123.

In general, the RJ45 standard plug 100 for a 4-pair UTP cable has a separate PCB board 140 in which the 4-pair communication line 210 constituting the UTP cable is directly connected to the terminal 130 within the housing 110. Although it is often omitted, the communication plug according to the present invention and the communication patch cord 100 including the same may further be provided with a PCB board 140 to form a pattern 125 for noise removal or to mount the light source unit 120. You can.

And, as shown in FIG. 2, the PCB board 140 may be composed of the entire area of the housing, or as shown in FIG. 3, only the light source unit 120 and the resistance unit 123 may be mounted. It can also be configured to be compact enough.

As shown in FIG. 2 or FIG. 3, the four pair communication lines 210 of the communication cable 200 may each have a structure connected to the pattern 125 formed on the substrate 140 or each terminal 130. . The pattern 125 can be artificially formed to reduce noise or minimize mutual influence between adjacent pairs as communication speeds increase, and its length or shape can be configured in various ways.

Figure 4 shows an example of a test signal provided by connecting a tester to the communication apparatus 30 of Figure 1.

When connecting a tester to the communication tool 30, while the tester is mounted on the communication tool 30, the tester produces a test signal in the form of an arbitrary pulse that changes to (+) and (-) voltage values. Test Signal) can be supplied.

In addition, the test signal generated by operating the test button, etc. of the tester while the tester is mounted on the communication tool 30 is a random signal whose voltage value can be differentiated into 2L[V] and 0L[V]. It may be a signal in the form of a pulse.

For example, the test current of the tester may be a 1Mhz pulse-type current whose magnitude changes to 10 [V] and 0 [V], and the value of L may be 5. However, the L value is not exactly a specific constant and can be used simply as an index to distinguish the level of voltage.

For example, the voltage value of 0L[V] does not necessarily have to be 0[V], but can be any value that can be distinguished from voltage values such as 1L, -1L, or 2L. In addition, 1L and 2L do not necessarily mean double the voltage value, but should be interpreted as indices that can distinguish between large and small voltages, and 1L and -1L also do not mean opposite voltage values with different signs. The sign of should be interpreted as an index that can distinguish differences.

In addition, the test signal can be understood as consisting of a current in which a direct current signal with a voltage of 1L [V] and a pulse signal that changes to 1L [V] and -1L [V] are superposed. For example, the test current can be understood as a superimposed signal of a direct current signal with a magnitude of 5 [V] and a pulse signal that changes to 5 [V] and -5 [V].

In addition, the test signal for determining whether the network switch and the patch panel within the communication room are connected and the connection position is supplied through the communication equipment, but can be understood as ultimately being provided as a plug through the patch panel of the communication room.

For convenience of explanation, the L[V] value, which specifies the size of the test current, is assumed to be 5[V].

Hereinafter, the lighting indexing function of the patch cord plug of the present invention will be described with reference to FIGS. 5 to 8.

Figures 5 and 6 show a circuit diagram of the patch cord plug of the present invention separated from one modular jack 11 of the network switch 10 and a circuit diagram of the lighting indexing state, and Figures 7 and 8 show the present invention A circuit diagram showing a patch cord plug mounted on one modular jack 11 of the network switch 10 and a circuit diagram showing a lighting indexing state are shown.

In addition, it is assumed that the patch cord connecting the network switch 10 and the patch panel 20 in the communication room is connected to the patch panel 20.

As described above, the communication cable may be composed of 4 pairs, and the light source unit 120 and the resistance unit 123 provided in the plug of the present invention are each connected in series between two communication lines 210, Two light emitting elements constituting the light source unit 120 may be connected in parallel within the light source unit 120. The light source unit 120 and the resistance unit 123 may be mounted on a substrate. Each light-emitting element constituting the light source unit 120 may be an LED element, and may be mounted so that the current direction as a light-emitting condition is opposite.

In general, network equipment that supports high-speed communication, such as network switches, is not directly connected electrically, and may be configured in the form of a transformer (transformer circuit, 11a and 11b) for reasons such as circuit protection. That is, each pair of communication lines can be connected to the inductor 11a.

First, when the test button of the tester is pressed while the plug of the present invention shown in FIGS. 5 and 6 is disconnected from the modular jack 11 of the network switch 10, 10 [V] is generated through communication lines 3 and 6. And a test signal in the form of a pulse of 1 MHz that changes to 0 [V] is supplied to form a closed circuit passing through the light source unit 120, the resistance unit 123, and communication lines 3 and 6, as shown in FIG. 6. As shown, the first light emitting element 121a whose current direction matches the light emission condition emits light. In this case, the second light emitting device 121b does not emit light because the current direction as the light emission condition does not match.

Since the test current is a pulse signal of high frequency, the first light-emitting device 121a emits light and blinks, but it is difficult to distinguish with the naked eye, so the first light-emitting device 121a can be identified as continuously emitting light.

However, as shown in FIGS. 7 and 8, when the plug of the present invention is mounted on the modular jack 11 of the network switch 10, the first light-emitting device 121a and the second light-emitting device 121b are ) emit light together.

That is, when the plug of the present invention is mounted on the modular jack of the network switch 10, a test signal in the form of a 1 MHz pulse that changes to 10 [V] and 0 [V] is supplied through communication lines 3 and 6. .

The test signal in the form of a 1 MHz pulse that changes to 10 [V] and 0 [V] is arbitrarily divided into a 5 [V] direct current signal and 5 [V] and -5 [V] as described with reference to FIG. 4. It can be understood as a superimposed signal of a changing pulse signal, and the 5[V] direct current signal constituting the test signal acts as a resistance component because the inductor 11a of the modular jack of the network switch 10 has very low impedance at low frequencies. Therefore, as shown in FIGS. 8(a) and 8(b), it does not affect lighting of the light source unit 120 connected in series with the resistance unit 123 of the plug.

However, the 1MHz pulse signal that changes to 5[V] and -5[V] that constitutes the test signal acts as a resistance component because the inductor 11a of the modular jack of the network switch 10 has a very high impedance at high frequencies. It cannot flow through the inductor 11a of the modular jack and flows through the light source unit 120 and resistance unit 123 of the plug.

In addition, the 1MHz pulse signal that changes to 5[V] and -5[V] is a signal in which the direction of the current changes alternately, similar to alternating current, and as shown in Figures 8(a) and 8(b), the resistance unit and As the direction of the current flowing through the light source unit 120 changes, the 5 [V] pulse signal, which is a component of the 10 [V] test signal, turns on the first light emitting device 121a, and the component of the 0 [V] test signal turns on. A pulse signal of -5 [V] turns on the second light emitting elements 121b alternately.

That is, since the direction of the 5[V] and -5[V] pulse signals changes at 1 MHz, they are not identified as lighting up alternately with the naked eye, but simultaneously turn on the first light emitting device 121a and the second light emitting device 121b. It can be observed that it lights up.

Therefore, the 1MHz pulse signal that changes to 5[V] and -5[V] constituting the test signal is connected to the first light emitting device 121a and the second light emitting device 121b arranged in opposite directions like an alternating current signal. can be turned on respectively.

Here, the light source unit 120 includes a first light-emitting element 121a of a first color and a second light-emitting element 121b of a second color in one unit, and each light-emitting element has the first color and the second color. Although it consists of two colors, when the first light emitting element 121a of the first color and the second light emitting element 121b of the second color each emit light independently, the light source unit 120 emits light in the first color or the second color. However, when the first light-emitting device 121a of the first color and the second light-emitting device 121b of the second color emit light together, the light source unit 120 emits light of the first color and the second color. It can also be composed to shine with a combined third color.

The light source unit 120 is composed of one unit and is provided with a first light-emitting element 121a of a first color and a second light-emitting element 121b of a second color therein. When the second light emitting device 121a and the second color 121b emit light together, they may be configured to emit a third color that is a mixture of the first color and the second color.

In this way, the light source unit 120 according to the present invention lights up the first light-emitting element 121a alone so that it shines in the first color or the third color as needed, or the first light-emitting element 121a and the second light-emitting element 121a are used to emit light. A method of lighting up the elements 121b together is used.

Therefore, when conducting a test by installing a tester in the communication apparatus 30, the communication room worker must connect the patch cord in the communication room when the first light-emitting element 121a and the second light-emitting element 121b are turned on at the same time. At the same time as confirming that there is no problem, it is possible to intuitively recognize the connection position of the communication tool 30 and the network switch 10, and when performing the test, 1 When the light emitting element 121a lights up, it is confirmed that the network switch 10 needs to be connected, and the communication room connection work can be completed by connecting the plug that emits light in a separated state to the modular jack of the designated network switch.

In this way, when the connection to the communication room is completed, the lighting of the corresponding plug is in a state in which the first light-emitting device 121a is turned on alone, and the first light-emitting device 121a and the second light-emitting device 121b are turned on together. The change can be immediately identified, and through this, workers can check the communication room connection status and connection location at the same time.

The lighting indexing function of the communication cabling management system according to the present invention can be summarized as in the table below.

Whether the light source unit lights up when voltage is applied through the communication outlet First light emitting device (121a) Lights O Lights O Lights up Second light emitting device (121b) Lights up Lights O Lights up Identification item Disconnect network switch plug Equipped with network switch plug Patch panel not connected /
Other communication line problems

The patch cord connecting the patch panel 20 and the network switch 10 may be provided with the plug of the present invention described above on at least one side, and in order to use the lighting indexing function, the patch cord must be connected to the patch panel 20. It is assumed that there is no problem with the communication line up to the patch panel 20. Therefore, when applying a test current through a tester that constitutes the communication cabling management system of the present invention, no plug that lights up is found in the communication room. If this is not possible, the patch cord for connecting the network switch (10) and the patch panel (20) in the communication room is not connected to the patch panel (20) or is not connected to the communication line from the communication outlet (30) to the patch panel (20). It can be understood to mean that something is wrong.

Although this specification has been described with reference to preferred embodiments of the present invention, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims described below. It will be possible to implement it. Therefore, if the modified implementation basically includes the elements of the claims of the present invention, it should be considered to be included in the technical scope of the present invention.

1: Network communication system
10: network switch
20: patch panel
30: Communication tool
50: tester
100: plug
121: Light source unit
123: Resistance unit
200: communication cable
300: patch cord

Claims (18)

In the communication plug that is mounted on the end of a communication cable having a plurality of pairs of communication lines and constitutes a communication patch cord,
housing;
A light source unit connected between two of the communication lines;
A resistance unit connected in series with the light source unit;
It includes a plurality of pairs of terminals connected to the plurality of pairs of communication lines,
The light source unit includes a first light-emitting element of a first color and a second light-emitting element of a second color in parallel,
The first light emitting element and the second light emitting element constituting the light source unit are provided in one unit,
When both the first light emitting device and the second light emitting device are turned on, they emit light in a third color that is a combination of the first color and the second color, and the first light emitting device and the second light emitting device emit a current that satisfies the light emission conditions. A communication plug characterized by LED elements with different directions. In the communication plug that is mounted on the end of a communication cable having a plurality of pairs of communication lines and constitutes a communication patch cord,
housing;
A light source unit connected between two of the communication lines;
A resistance unit connected in series with the light source unit;
It includes a plurality of pairs of terminals connected to the plurality of pairs of communication lines,
The light source unit includes a first light-emitting element of a first color and a second light-emitting element of a second color in parallel,
When connecting a network switch constituting a communication system with the patch cord and a patch panel, one plug of a pair of plugs provided at both ends of the patch cord is mounted on the patch panel, and the other plug is connected to the patch panel. A communication plug, wherein both the first light emitting element and the second light emitting element light up or only one light emitting element lights up when a test signal supplied from the patch panel to the patch cord is applied depending on whether it is connected to a network switch. According to claim 1 or 2,
A communication plug, characterized in that the plug is provided at one end of the patch cord and a general plug is provided at the other end. According to paragraph 3,
A communication plug, characterized in that the plug and the general plug satisfy the RJ45 standard, and the communication cable has 4 pairs of communication lines. According to paragraph 3,
The modular jack of the network switch is a transformer-type modular jack,
A communication plug, wherein one of the first light emitting device and the second light emitting device lights up when the plug or the general plug is disconnected from the modular jack of the network switch. According to clause 5,
The modular jack of the network switch is a transformer-type modular jack,
A communication plug, wherein the first light-emitting device and the second light-emitting device light up together when the plug or the general plug is mounted on a modular jack of a network switch. According to clause 6,
A communication plug, characterized in that the test signal is a pulse signal whose voltage level is randomly changed into distinct values. According to clause 6,
The current of the test signal is direct current and has a specific magnitude. A communication plug, characterized in that it is a superimposed signal of a direct current signal and a changing pulse signal having a voltage value of the opposite sign. According to claim 1 or 2,
The plug further includes a boot into which the communication cable is introduced and mounted on the rear of the housing, and the housing or the boot is made of a light-transmissive material. According to claim 1 or 2,
A communication plug, characterized in that an opening is formed in the housing to expose the light source unit to the outside of the housing. According to claim 1 or 2,
Further comprising a substrate on which the light source unit and the resistance unit are mounted,
A communication plug, wherein the light source unit and the resistance unit are connected in a pattern on the substrate. According to paragraph 2,
A communication plug, characterized in that the current of the test signal is supplied by mounting a tester on a communication equipment installed in a communication consumer space connected to the patch panel constituting the communication system. A communication cable having 4 pairs of communication lines; and,
A communication patch cord including the communication plug according to any one of claims 1, 2, and 12, which is mounted on at least one end of the communication cable. According to clause 13,
The communication cable is a communication patch cord, characterized in that it is a POE (Power Over Ethernet) cable used for communication and power supply. The patch cord of Clause 13 for connecting the network switch and patch panel constituting the communication system;
It includes a tester for providing a test signal through the patch panel,
A communication cabling management system, characterized in that it is possible to check whether the plug of the patch cord is connected to the modular jack of the network switch according to the lighting state of the first light emitting device or the second light emitting device constituting the light source unit.
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