KR20070011964A - Apparatus and system for transmitting voice signal with data(ethernet etc) signal using a cable - Google Patents

Abstract

An apparatus and a system for simultaneously transmitting voice and data signals are provided to remarkably reduce construction expenses for extension by simultaneously transmitting a telephone signal and an Ethernet LAN signal through an Ethernet cable or a CPEV cable, and improve operational efficiency of a network construction. A telephone line connected through an RJ-11 passes through a lightning protection unit. A telephone signal which has passed through the lightning protection unit is separated into four lines while passing through a 2 line/4 line hybrid circuit(1). A DC signal inputted through the telephone line is transferred to a transmission impedance matching transformer(4). The telephone signal is transferred to bridge tap attenuators(2,3) and impedance is matched. After passing through the bridge tap attenuators(2,3), the telephone signals are connected with a transmission impedance matching transformer(4) and a reception impedance matching transformer(5), respectively. The impedance matching transformers(4,5) combine an Ethernet signal and the telephone signals. The transmission and reception impedance matching transformers(4,5) are connected with extensions so as to transmit/receive the telephone signal and the Ethernet signal through a 4-line UTP cable or CPEV cable.

Description

Apparatus and system for transmitting voice signal with data (ethernet etc) signal using a cable}

1 is a conceptual diagram of a simultaneous transmission of a voice signal and an Ethernet signal according to the present invention.

2 is a block diagram of an apparatus according to an embodiment of the present invention.

3 is a detailed circuit diagram of an apparatus according to an embodiment of the present invention.

4 is a front perspective view according to an embodiment of the present invention.

5 is a rear perspective view according to an embodiment of the present invention.

6 is a rear perspective view of the apparatus according to another embodiment of the present invention.

7 is a front perspective view of a multiport hybrid device according to another embodiment of the present invention.

8 is a rear perspective view of a multiport hybrid device according to another embodiment of the present invention.

9 is a system configuration diagram according to an embodiment of the present invention.

10 is a system configuration diagram according to another embodiment of the present invention.

The present invention is a device for transmitting voice signals and Ethernet signals through a single LAN cable or CPEV cable, it is possible to process voice and data at the same time using a single cable without having to establish a separate telephone line, in particular A device and system that do not require a separate power supply for driving.

In general, most homes and offices currently perform digital data communication through LAN cables, and internal and external voice analog communication through separate general telephone lines. In other words, as the high-speed Internet is becoming more common, it is common to install telephone lines and LAN cables at the same time in the wiring work of homes and offices.

In this case, two-line telephone line and four-wire LAN cable are installed at the same time in the house, so that facility cost increases, and maintenance costs are also doubled.

Although some prior arts have introduced devices capable of transmitting voice and data signals simultaneously through a single cable by integrating them, a separate power source is used to drive these devices, and thus the utility of the integration is halved. have.

An object of the present invention for solving the above problems is to provide an apparatus and system for the simultaneous transmission of voice and data signals in the simultaneous transmission of voice and data signals, easy to install and implement.

Another object of the present invention is to provide an apparatus and system for simultaneous transmission of voice and data signals, which can operate without additional power supplies in transmitting voice and data signals simultaneously.

The present invention provides an apparatus for transmitting voice and data signals, comprising: an impedance matching unit and an impedance matching unit for matching impedance by receiving a signal output from a 2-wire / 4-wire transformer and a 2-wire / 4-wire transformer connected to a telephone line It receives and outputs a signal and a data signal output from the, and the power line and the ground line of the telephone line is characterized in that it comprises a transmit and receive transformer coupled to each of the secondary center tap.

1 is a conceptual diagram of a simultaneous transmission of a voice signal and an Ethernet signal according to the present invention, FIG. 2 is a block diagram of a device according to an embodiment of the present invention, and FIG. 3 is a detailed circuit diagram of a device according to an embodiment of the present invention. 4 is a front perspective view according to an embodiment of the present invention, FIG. 5 is a rear perspective view according to an embodiment of the present invention, FIG. 6 is a rear perspective view of a device according to another embodiment of the present invention, and FIG. 8 is a front perspective view of a multiport hybrid device according to another embodiment of the present invention, FIG. 8 is a rear perspective view of a multiport hybrid device according to another embodiment of the present invention, and FIG. 9 is a system according to an embodiment of the present invention. 10 is a configuration diagram according to another embodiment of the present invention.

Referring to the accompanying drawings, it is common to install a telephone line and a LAN cable at the same time in the wiring construction of the building as the high-speed Internet is common. In this case, two telephone lines and four LAN cables are installed at the same time in the home. The hybrid of the present invention is a device that combines and transmits a telephone line signal including DC to four LAN cables and separates them from the opposite side, and does not install a separate telephone line.

1 is a conceptual diagram of a simultaneous transmission of a voice signal and an Ethernet signal according to the present invention. As shown in FIG. 1, a telephone line for transmitting a voice signal and a LAN cable for transmitting an Ethernet signal are combined in a hybrid and transmitted through a 4-wire UTP cable or a CPEV cable. Therefore, in the beginning, a cable laying method that requires two telephone lines and four Ethernet LAN cables can be transmitted through a four-wire LAN cable or a CPEV cable. An object of the present invention is to provide an apparatus for transmitting a telephone signal and an Ethernet signal simultaneously through a LAN cable or a CPEV cable which is widely used at present.

Figure 2 is a block diagram of a hybrid device designed in the present invention. First, telephone lines connected through RJ-11 connectors pass through a lightning protector. The lightning protector is a circuit for protecting the circuit in the subscriber's home from lightning. The telephone signal passing through the lightning protector is separated into four wires while passing through the two-wire and four-wire hybrid circuit 1. At this time, the DC signal input through the telephone line is transmitted to the transmission impedance matching transformer 4.

The telephone signal separated by four wires is transmitted to the bridge tap attenuators 2 and 3 to match the impedance. Typically, the impedance on the Ethernet signal side is 100 ohms, and the impedance on the telephone line side is 600 ohms, so the impedances on both sides must be matched to combine the two signals. Circuits that perform this function are bridge tap attenuators 3 and 2.

The telephone signals passing through the bridge tap attenuators 2 and 3 are connected to the transmission impedance matching transformer 4 and the reception impedance matching transformer 5, respectively. Impedance matching transformers 4 and 5 perform the function of combining the Ethernet signal and the telephone signal. The transmit and receive impedance matching transformers 4 and 5 are connected to the extension to transmit and receive telephone signals and Ethernet signals through a 4-wire UTP cable or CPEV cable.

3 is a detailed circuit diagram of the hybrid device designed in the present invention. Ethernet signals consist of TX +, TX-, RX +, and RX-. This signal is first divided into TX +, TX- and RX +, RX-. The TX + and TX− signals are first connected to a transmit impedance matching transformer 4. Likewise, the RX + and RX- signals are connected to a receive impedance matching transformer 5. Transmit and receive impedance matching transformers (4, 5) should have a center tap on the secondary side. This is to deliver -48V DC from the telephone line. In addition, the transmit and receive impedance matching transformers 4 and 5 must be designed to meet DC (direct current) superposition characteristics of up to 60mA. Transmitted and received impedance matching transformers (4, 5) designed through this standard can transmit -48V DC signals transmitted through telephone lines from switchboards within a telephone company to LAN cables and CPEVs. Through this DC transmission, the RING of the telephone located in the subscriber's home can be ringed. The device that transmits the telephone signal and the Ethernet signal at the same time through the LAN cable developed in the past has the disadvantage of having to use a separate power adapter and a power supply because there is no DC transmission function. The present invention implements a function of delivering the DC of the exchange to the telephone located in the subscriber's premises without the need for a separate power supply.

In FIG. 3, the telephone signal is transmitted to a transformer constituting the two-wire and four-wire hybrid 1. The 2-wire / 4-wire hybrid 1 has a structure in which the secondary side is separated. Similarly, they must be designed to satisfy DC superimposition characteristics up to 60mA or more. The telephone signal is sent to the primary transformer and to the secondary side. The -48V DC and ground are then passed to the secondary center taps of the transmit and receive impedance matching transformers 4 and 5, respectively.

The telephone signal transmitted to the secondary transformer is applied to the bridge tap attenuators 2 and 3, respectively. The telephone line has an impedance of 600 ohms and the impedance on the Ethernet side is 100 ohms. In order to solve such an inconsistency of the impedance, the bridge tap attenuators 2 and 3 match this using a resistance value. The telephone signal passing through the bridge tap attenuator is transmitted in combination with the Ethernet signal at the transmit and receive impedance matching transformers 2 and 3.

Figure 4 is a front surface of the instrument of the hybrid devised in the present invention. On the front, there is a telephone line port (RJ-11) and an Ethernet port (RJ-45) connector coming in from the trunk line. 5 is a rear view of a hybrid instrument shape. At the back, there is an RJ-45 connector to the station. In some cases, instead of the RJ-45 connector, it can be replaced by a terminal block for ease of operation in the field. The shape for this is shown in FIG. Figure 6 is replaced by a terminal block instead of RJ-45 connector is configured to allow the installation technicians to work with the wrapping tool in the field. As shown in FIG. 6, the hybrid may be integrated into an office or a home, and may be embedded in a wall of a building in the form of a wall jack.

7 is a front view of a multiport hybrid having several ports. 8 is a backside of a hybrid with multiple multiports.

Multiport hybrids are installed in building MDF rooms or terminal boxes and are used to combine telephone and Ethernet lines. Multiport hybrids can also be used to streamline the wiring of such equipment in a typical building, if both Ethernet switches for the Internet and on-premises exchanges for telephone service are installed at the same time.

9 illustrates an embodiment that simplifies premises wiring and reduces costs by using a multiport hybrid 10. Generally, inside the small building, the premises exchanger 50 as shown in FIG. 10 is installed, but the example described in FIG. 9 exemplifies that a direct telephone is connected without the premises exchanger. An example of using the Internet using such a telephone line and DSLM 40 is given. The single fork hybrid 20 is provided in the telephone and computer side, respectively, and the structure is as shown in FIG.

Referring to FIG. 10, in general, medium and large buildings are provided with an optical transmission device 40 for voice telephone service. Separately, an Ethernet switch 31 for internet service is installed. The current method is installed in such a way that the telephone line and the Ethernet cable are separately installed in the subscriber's premises. When the multi-port hybrid 10 of the present invention is used, the Ethernet port of the Ethernet switch 31 and the telephone line port of the premises exchange 50 are transmitted by being combined in the multi-port hybrid 10, thereby reducing the cost of cabling. can do. FIG. 10 is an example in which an exchanger or an optical transmission device 50 is connected, and the other configuration is similar to that of FIG. 9, and detailed description thereof will be omitted.

On the other hand, in the case of the existing building, there is a place where the wiring in the premises is raised only by 4 lines, unlike the building that is constructed these days. In other words, in the case of recently constructed buildings, 6 ~ 8 lines are installed in the subscriber's house considering both internet and telephone. However, in the case of the former building, since the Internet was not considered, there are many places where 4-wire CPEV cable is installed to service a telephone. In order to service the Internet in such a building, a separate LAN cable must be installed. The installation of LAN cables in the main building is time-consuming and difficult, greatly increasing the cost. As a result, telecom operators are taking a way through the windows of their subscribers' homes to install LAN cables. This approach has resulted in a number of complaints from subscribers because they undermine the aesthetics of the building.

When the hybrid of the present invention is applied to such a main building, it is possible to service both a telephone and the Internet through a 4-wire CPEV cable, and thus it is not necessary to construct a window through the subscriber's premises and to install a separate LAN cable. Therefore, there is an advantage that the installation efficiency can be increased and service can be very economical.

In the above description, the multi-port hybrid 10 device referred to in FIG. 9 has been described as synthesizing a telephone signal and a data signal. However, the multiport hybrid 10 device may be configured as a single device to simultaneously perform an Ethernet switch in such a function. A single port hybrid (hybrid: 20) device that is installed may also work with the functionality of a modem installed in the computer. In the multiport hybrid device 10, the circuit shown in FIG. 3 is implemented for each port. In this case, there is no need to purchase or install a separate modem, which is economical and easy to install from the user's point of view. If the above-described modem or switching function is included, the cost of the equipment premises can be reduced by selecting a device having additional functions in the same device.

As described above, the hybrid of the present invention can dramatically reduce the cost of construction work by transmitting a telephone signal and an Ethernet LAN signal simultaneously through an Ethernet cable or a CPEV cable instead of the conventional method of installing both a telephone line and an Ethernet cable. It can improve the work efficiency of network construction. As shown in FIG. 7, when the hybrid service is used, cable can be installed so that telephone and internet can be serviced by 20 lines of 4 wires per household. If a hybrid is not used, a total of 30 lines should be installed in 5 households, 6 wires per household. Considering the cost of cable installation and the cost of installation work, the cost can be reduced and the maintenance is easy when using a hybrid. Moreover, it has the advantage of easy installation as the device operates without a separate power supply.

Claims (9)

An apparatus for transmitting voice and data signals, 2-wire and 4-wire transformers with telephone lines; An impedance matching unit which receives a signal output from the 2-wire / 4-wire transformer and matches an impedance; Simultaneous transmission of voice and data signals, receiving and outputting signals and data signals output from the impedance matching unit, and transmitting and receiving transformers having power lines and ground lines of the telephone line connected to respective secondary center taps. Device. The method according to claim 1, The impedance matching unit, Simultaneous transmission of voice and data signals, characterized in that it comprises a bridge-step attenuator. The method according to claim 1 or 2, And a modem for generating the data signal. The method according to claim 1 or 2, The transmission and reception transformer and the two-wire and four-wire transformer, Simultaneous transmission of voice and data signals, characterized in that a DC superposition characteristic of up to 60 mA is satisfied. The method according to claim 1 or 2, Signals output from the transmitting and receiving transformers, Simultaneous transmission of voice and data signals, characterized by transmission by CPEV cable or RJ45 cable. A system for transmitting voice and data signals, Ethernet switch; A multiport hybrid device configured to perform impedance matching by connecting a data line and a telephone line connected from the Ethernet switch, and to synthesize a voice and data signal by connecting a power line and a ground line of the telephone line to a secondary side of a transformer; A plurality of single port hybrid devices each connected to a port of the multiport hybrid device and separating the synthesized signal into data and voice; A computer connected to the single port hybrid device; And, A telephone connected to the single port hybrid device Simultaneous transmission system for voice and data signals comprising a. The method according to claim 6, The single port hybrid device, A system for transmitting voice and data signals simultaneously, comprising a modem function and installed in a computer or externally. A system for transmitting voice and data signals, A multi-port hybrid device configured to perform an Ethernet switching function, to perform impedance matching with a data line by connecting a telephone line, and to connect a power line and a ground line of the telephone line to a secondary side of a transformer to synthesize voice and data signals; A plurality of single port hybrid devices each connected to a port of the multiport hybrid device and separating the synthesized signal into data and voice; A computer connected to the single port hybrid device; And, A telephone connected to the single port hybrid device Simultaneous transmission system for voice and data signals comprising a. The method according to claim 8, The single port hybrid device, A system for transmitting voice and data signals simultaneously, comprising a modem function and installed in a computer or externally.

Images