KR101821710B1 - Power device communication connecting system - Google Patents

Abstract

A power device communication connection system is disclosed. According to the embodiments of the present invention, in connecting the communication connectors for network communication between the power devices, the existing communication connector can be used as it is even if the communication method or the connection method is changed, The network communication connection is simplified and the convenience of the user is increased by adding an intermediary connector including the assembled communication line or the contact terminal implemented so as to change the communication network.

Description

POWER DEVICE COMMUNICATION CONNECTING SYSTEM [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power device communication connection system, and more particularly, to a power device communication connection system that enables various communication connections to be performed according to a communication method while maintaining existing connectors intact when a communication network of power devices is wired.

In general, network equipment such as protective relays or switches send or receive signals or data over low-speed or Ethernet communications to perform system or instrumentation at all times. Examples of such low speed communication are RE-232, RS-422, and RS-485 communication methods. An example of high speed communication is Ethernet communication. Communication lines according to each communication method are manufactured according to a standardized communication method, and connect power devices such as network equipment.

Normally, RS-232 communication crosses RXD and TXD with pins 2 and 3 and connects to TXD and RXD of other power equipment. GND function is connected to D-SUB pin 5 or D-SUB 25 Pins.

Typically, a data terminal equipment used as a DTE (Data Terminal Equipment) is typically a PC. The D-SUB 9 pin of the PC uses a male connector. The data communication equipment used in the DCE (Data Communication Equipment) is a modem that functions as a connection to the network side. The D-SUB 9 pin of the modem generally uses a female connector. Therefore, a male connector is also used.

The connectors generally have a plurality of pins.

In the connector, the DTR (DTE device) pin is a place to send a signal informing the counterpart power device that it is in a transmittable / receivable state, and the DSR (DCE device) is a place to receive a DRT signal to be. That is, for network communication, when one of the power devices is ready for transmission / reception, the DTR signal is output, and when the other power device is ready for transmission / reception, the DTR signal is received. In addition, on the connector, the RTC (DTC device) and CTS (DCE device) pins are pins that can confirm whether or not the preparation for receiving data is actually completed in each power device.

Also, the connector needs a suitable communication connection to match the function of the pin provided. Therefore, it is necessary to fabricate a communication cable in accordance with a communication connection to be used in network communication, and there are various types of communication lines.

More specifically, there are three types of cables for connecting the RXD and TXD of the connector in a cross manner in accordance with the RS-232/422/485 system, and there are three types of cables for direct connection. In addition, when two types of wiring using a method of actually connecting the DST / DTR of the connector and using the self-wiring are further added, a communication line of about ten wires is required. Also, considering the way of using loopback, there are 12 kinds of wiring methods in total.

As such, the equipment of the power equipment is usually manufactured differently according to the characteristics of the vendor. Therefore, when dividing the number of cases where both connectors to be connected for network communication are male or only male, The type of cable required is too large, so it takes a lot of time to set up communication for actual test or research. In addition, in case of Ethernet communication, the international standardization method is applied. However, there may be a case where the connection of the communication cable is direct, and a complicated communication environment is created according to the communication line length.

In this way, communication lines that are manufactured differently according to a network communication method and a connection method are generally incompatible with each other. For example, in order to change the network communication method, each communication cable and / A complicated communication wiring structure has to be formed.

Therefore, the embodiments of the present invention do not need to separately prepare respective communication cables according to the communication method and connection method of power devices for network communication, but only change the intermediate connection method while maintaining the existing connectors, The present invention provides a communication device and a communication device which can be easily changed.

The power device communication connection system according to an embodiment of the present invention includes: a first communication connector provided in a first power device; A second communication connector provided in the second power device for network communication with the first power device; A communication line or a contact capable of assembling in a block manner according to communication specifications of the first communication connector and the second communication connector connected to both ends, And an intermediate connector having a terminal.

In one embodiment, the intermediate connector comprises: a first connection configured to connect the first communication connector; A second connection configured to connect the second communication connector; And a switch for controlling input / output signals of the first connection unit and the second connection unit.

In one embodiment, the communication specification includes at least one of a pin count, a female / male type, a direct / cross connection type, and a serial / Ethernet communication And a method of the present invention.

In one embodiment, the intermediate connector is characterized in that the number of connecting pins is configured so as to include at least as many communication lines as necessary to connect the first communication connector and the second communication connector.

In one embodiment, the first communication connector and the second communication connector are any one of a D-SUB 9 pin, a D-SUB 25 pin, and an RJ-45 communication port.

Therefore, according to the power device communication wiring system according to the embodiment of the present invention, when connecting communication connectors for network communication between power devices, the existing communication connector can be used as it is even if the communication method or connection method is changed, The addition of an assemblable communication line or an intermediate connector including a contact terminal which is implemented so as to change the connection mode of the communication cable in the middle only provides an effect that the network communication connection is simplified and the convenience of the user is increased.

1A and 1B are diagrams showing exemplary configurations of general connectors used in a communication network connection of a power device.
FIGS. 2A to 2E are views showing a wiring method of connectors according to a communication method and a cable connection method of connected power devices.
3 is a diagram illustrating an exemplary wiring method of a power device communication connection system using an intermediate connector according to an embodiment of the present invention.
4 is a diagram illustrating an exemplary wiring method in which connectors for serial communication using an intermediate connector are directly / cross-connected according to an embodiment of the present invention.
5 is a diagram illustrating an exemplary wiring method in which connectors for Ethernet communication are directly / cross connected using an intermediate connector according to an embodiment of the present invention.
6 is a view showing an exemplary structure in which an intermediate connector according to an embodiment of the present invention has only a contact terminal and connectors on both sides are connected.

Hereinafter, a power device communication connection system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they may obscure the subject matter of the present invention.

The power device communication connection system according to an embodiment of the present invention includes a first communication connector, a second communication connector, and an intermediate connector provided between the first communication connector and the second communication connector. The first communication device is provided in the first power device and the second communication connector is provided in the second power device. The first power device and the second power device communicate with each other through a communication connector provided in each of the first power device and the second power device. In addition, the intermediate connector transmits / receives one or more signals via a first communication connector and a second communication connector, wherein the structure of the intermediate connector includes a first communication connector connected to both ends and a second communication connector And a communication line or a contact terminal which can be assembled in a block manner.

1A and 1B illustrate exemplary configurations of typical connectors used in the communication network connection of a power device.

1A is an example of a serial communication connector used for RS-232/422/485 communication, wherein the connector shown on the left is an example of a D-Sub 25 pin connector and the connector shown on the right is a D-Sub 9 pin connector It is an example. RS-232 uses three lines of RXD, TXD and GND, and RS-422 uses RXD + /, TXD +/-, and SG. In addition, RS-485 communication generally uses two lines of TXD +/-. Thus, the name depends on the function according to the communication method used.

1B is an illustration of an RJ45 connector used for Ethernet communication. Conventional Ethernet communication lines have mainly used RJ45, DB15 and BNC connectors with T1 / E1, but now they are using RJ45 connectors according to international standards.

FIGS. 2A to 2E show wiring methods of connectors according to a communication method and a cable connection method of connected power devices.

FIG. 2A shows a cross connection method of a serial communication line using a D-Sub connector. FIG. 2A shows a general wiring method in which a RXD pin of a left connector and a TXD pin of a right connector are connected to transmit signals or data. Here, the RXD pin of the left connector becomes the reception pin and the TXD pin of the right connector becomes the transmission pin.

2B shows a wiring method when a null modem connection method is used when 9-pin and 25-pin are used in a D-Sub connector type. And FIG. 2C shows a wiring method when a loop back is used when 9-pin and 25-pin are used in the D-sub connector type. The pin number to be connected depends on whether the D-Sub 9 pin is used or the D-Sub 25 pin is used. Since both terminal drivers are fixed, the middle communication line is also connected to the connection method . Also, since the number of pins and the pin number provided for each kind of connector may be different from each other, a communication line which is different from one apparatus to another is used.

FIG. 2D shows a direct connection method of an Ethernet communication line using an RJ45 connector. As shown in the figure, both connectors are connected to communication lines having the same color. In other words, the left side orange, orange, white green, blue, white blue, green, white brown and brown are connected to the communication lines of white orange, orange, white green, blue, white blue, green, do.

2e shows a cross connection method of an Ethernet communication line using an RJ45 connector. As shown in the figure, the left side orange, orange, white green, blue, white blue, green, Is connected to communication lines of white green, green, white orange, blue, white blue, orange, white brown and brown on the right side. As such, whether the Ethernet communication line takes the direct connection mode or the cross connection mode is the same, but the communication line connected to the middle line is different according to the connection mode.

Hereinafter, an exemplary wiring method of a power device communication wiring system using an intermediate connector according to an embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 3, the connectors 10 and 20 connected to both sides of the system according to the purpose of network communication use the standardized existing apparatus as it is. And an intermediate connector 30 having a communication line or a contact terminal that can be assembled in a block manner so as to apply any communication wiring method according to a specification of a connector to be connected between the two side connectors 10 and 20 is provided. That is, the TXD, RXD and CTS of the upper left connector 10 of FIG. 3, that is, the D-SUB 25 pin are connected to the intermediate connector 30 and the right connector 30, that is, the D- SUB 9 pin TXD, RXD, GND to network connector by direct or cross connection to the intermediate connector (30) according to the purpose of network communication.

The intermediate connector 20 includes a first connection portion (not shown) configured to connect the left connector 10 and a second connection portion (not shown) configured to connect the right connector 30. In addition, the intermediate connector 20 may include a predetermined switch (not shown) for controlling the input / output of signals through the first connection unit and the second connection unit.

The intermediate connector 20 has a structure in which a communication line or a contact terminal provided according to the communication specifications of the connectors 10 and 20 connected to both ends can be assembled. Here, the communication specification of the connector includes at least one of the number of pins provided in the connector, the type of female / male, the connection method such as direct / cross, and the serial / Ethernet communication method.

In addition, the intermediate connector 20 has a structure in which the number of connection pins can be increased so as to include as many communication lines as necessary to connect the connectors 10, 20 on both sides. That is, the number of the pins or the number of the contact terminals provided on the intermediate connector 20 should be equal to or greater than the sum of the number of the pins provided on the connectors 10, 20 on both sides.

4 is a diagram illustrating an exemplary wiring method in which connectors for serial communication using an intermediate connector are directly / cross-connected according to an embodiment of the present invention. In Fig. 4, since the connector 10, a connected to the left side is of the male type, the cable of the intermediate connector 20 connected thereto is in the form of a female. Since the connector 30, b located on the upper right side is of the female type, the cable of the intermediate connector 20 connected thereto is configured to take the form of male, and the connector 30 , c) is of the male type, so that the cable of the intermediate connector 20 connected thereto is in the form of a female. Here, the connector 10, a is connected to the intermediate connector 20 in a direct connection manner, and the connectors 30, b and the connectors 30, c are connected to the intermediate connector 20 in a cross connection manner.

As described above, when the intermediate connector 20 according to the embodiment of the present invention is used, communication lines or contact terminals are appropriately combined and connected by using pins provided in the direct or cross connector 20, Proper conversion is possible depending on the communication method.

5 is a diagram illustrating an exemplary wiring method in which connectors for Ethernet communication are directly / cross connected using an intermediate connector according to an embodiment of the present invention. 5, a RJ45 standard type connector 10, a is connected to the intermediate connector 20 on the left side and a RJ45 type connector is connected on the right side by a direct connection 30, c. In the embodiment of the present invention, when the right connector is to be switched from the direct connection to the cross connection, it is sufficient to connect the communication line to the intermediate connector 20 again according to the cross connection method while using the existing connector as it is. At this time, the intermediate connector 20 preferably has a structure capable of increasing or decreasing the number of pins so as to include at least a necessary number of communication lines in accordance with the switching of the communication connection mode.

6 illustrates an exemplary structure in which an intermediate connector according to an embodiment of the present invention includes only a contact terminal and connects the connectors on both sides. 6, when the communication cable is connected to both terminals of the intermediate connector 20, the intermediate connector 20 can be constructed so as to be able to insert only the communication cables 10 and 30 on both sides . That is, in this case, the intermediate connector 20 functions as a female terminal for simply connecting the communication cables 10 and 30 on both sides, thereby providing an efficient communication wiring structure.

As described above, according to the power device communication wiring system according to the embodiment of the present invention, the connectors having different structures are assembled and connected in block manner according to various network communication methods and communication specifications, 9 pin, 25 pin, RS45) can be used as it is.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should not be construed as being limited to the embodiments described, but should be determined by the scope of equivalents to the appended claims, as well as the appended claims.

As described above, according to the power device communication connection system according to the embodiment of the present invention, when connecting communication connectors for network communication between power devices, even if the communication method or connection method is changed, The communication line is simplified and the convenience of the user is improved by additionally configuring an intermediate connector including the assembled communication line or the contact terminal which is implemented so as to be able to change the wiring method of the communication cable only in the middle.

10 - First communication connector 20 - Second communication connector
30 - Intermediate connector

Claims (4)

A first communication connector included in the first power device and including a predetermined number of pins;
A second communication connector included in a second power device for network communication with the first power device, the second communication connector including a number of pins different from the number of pins of the first communication connector; And
A first connection to connect to the pins of the first communication connector, a second connection to connect to the pins of the second communication connector, and a switch to transfer one or more signals between the first connection and the second connection, Wherein the first connector, the second connector, and the switch are assembled in respective blocks. The method according to claim 1,
The first connection portion is determined according to the communication specification of the first communication connector,
The second connection portion is determined according to the communication specification of the second communication connector,
Wherein the switch is determined according to a communication specification of the first communication connector and a communication specification of the second communication connector. 3. The method of claim 2,
Wherein the communication specification of the first communication connector includes at least one of a number of pins, a type of a pin, a connection mode, and a communication mode in the first communication connector,
Wherein the communication specification of the second communication connector includes at least one of a number of pins, a type of a pin, a connection mode, and a communication mode in the second communication connector. The method of claim 3,
Wherein said type is an anomalous type or a male type,
The connection method is a direct connection method or a cross connection method,
Wherein the communication method is a serial communication method or an Ethernet communication method.

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