JP4638365B2 - Telephone connection device - Google Patents

Description

  The present invention relates to a telephone connection device used for making a telephone usable at a plurality of locations in a house.

  In order to make it possible to use telephones at multiple locations in a house, place communication outlets with telephone connection ports (modular jacks) at locations where they are expected to be used, and connect these telephone connection ports by, for example, a bus connection using a lead wire. Then, it may be connected to a telephone line drawn into the house through a protective device. If such a communication outlet and preceding wiring are provided in advance, an external telephone call can be immediately made by connecting a telephone set at a desired location to a telephone connection port of a nearby communication outlet.

  Along with the spread of personal computers, personal computers using telephone lines (hereinafter referred to as “retracted telephone lines”) drawn into subscriber's homes to transmit voice signals (referred to as telephone signals; the same shall apply hereinafter). Technology for transmitting and receiving data signals used in personal computers and the like (devices controlled by their output signals) has been developed. As one of the techniques, there is a method in which an audio signal and a data signal are overlapped and transmitted / received through one (a pair) of incoming telephone lines. When this method is used, a frequency filter is used to separate a tatami mat signal sent through a telephone line into a voice signal and a data signal, and to fold the voice signal and data signal during transmission. And a device called a splitter (hereinafter referred to as “splitter”) must be connected.

  The splitter includes an external line port connected to a lead-in telephone line via a protector, an audio port (AT port) connected to a telephone, and a data port (ST port) connected to a personal computer or the like. When the subscriber who used only the telephone call uses both the telephone call and the data communication by the personal computer using the above method, the splitter is installed near the entrance of the incoming telephone line, You must reconnect the lead wire for the telephone that was connected to the protector to the audio port on the splitter. Patent Document 1 below discloses a technique for performing the above-described reconnection work by providing a changeover switch for switching a terminal connected to a lead-in telephone line between a terminal for connecting a telephone and a terminal for connecting a splitter.

On the other hand, when a fire alarm is activated for the safety of houses or residents, or when an emergency device or surveillance camera detects an abnormality, an abnormality detection signal is automatically sent to the administrator's terminal connected via a public telephone line. Security devices that send messages are being installed. This type of security device transmits an abnormality detection signal as a low frequency signal (4 kHz or less) similar to that used in a telephone, and a general security device is used between a service telephone line and an indoor telephone. It is structured to be connected in series (cascade connection). When the splitter is provided, the security device having such a structure needs to be connected in series between the splitter and the telephone.
JP-A-2005-318302

  Whether to install a splitter to use data communications or install a security device to use security services by an administrator is a matter of choice by the resident, and the choice is changed after residence. There is a possibility that That is, a case in which the preceding wiring (home phone line) for a plurality of telephones arranged in a house is directly connected to a lead-in telephone line via a protector, a case where only a splitter is connected, and a security device The resident may choose one of four ways of connection, the case of being connected only through the network and the case of being connected through both the splitter and the security device, and the choice May be changed. When the selection or change is made, it is necessary to change the connection between the telephone wiring in the house and the incoming telephone line. The technology disclosed in Patent Document 1 enables a connection change operation between a case where the home telephone wiring is directly connected to the protector and a case where the home phone wiring is connected via the splitter by a simple operation. However, it is not possible to change the wiring via the security device.

  In the case of connecting a plurality of telephone wires directly to a protector, connecting only through a splitter, connecting through only a security device, and connecting through both a splitter and a security device. It is an object of the present invention to provide a telephone connection device that can cope with any of the connection modes and that can easily perform the work of changing the connection of the home telephone wiring when changing the connection mode between them.

  The invention of claim 1 of the present application includes a plurality of internal connection ports 11b connected to each other, an external connection port 11a connected to a public communication line, and an external line side cascade device connected to the external connection port by an internal wiring 12a. The above problem has been solved by providing a telephone connection device including a connection port 11aA, a connection line 21 that connects the extension line connection port and the external line connection port, and an opening / closing switch 20 that blocks the connection line. Is.

  The telephone connection device having a more preferable configuration according to claim 2 of the present application is, in addition to the above configuration, the extension-side cascade device connection port 11cA and the extension-side cascade device connection port connected by the internal wiring 12c. 2 external line side cascade device connection ports 11cB.

  Each of the in-home telephone lines 6 connected to the telephone connection ports 4t of the plurality of communication outlets 4 installed in the house is connected to a plurality of extension connection ports 11b. The external line connection port 11 a is connected to the service telephone line 2 through the protector 3. When neither the data communication nor the security service is used, the splitter 7 and the security device 8 are not connected to each other, and the open / close switch 20 is closed (conducted) so that the plurality of in-home telephone lines 6 are all connected to the incoming telephone line 2. Therefore, an outside line call can be performed from a telephone connected to any one of the communication outlets 4.

  When using only data communication in which a data signal is superimposed on an audio signal, the open / close switch 20 is opened (shut off), and the external line port 7l of the splitter 7 is connected to the external line side cascade device connection port 11aA. 7t is connected to one of the extension connection ports 11b. When only the security service is used, the open / close switch 20 is opened, the external port 8l of the security device 8 is connected to the external line side cascade device connection port 11aA, and the internal port 8t is connected to one of the internal connection ports 11b. To do.

  When stopping the use of data communication, the open / close switch 20 is closed with the splitter 7 connected as it is or with the splitter 7 removed. To stop using the security service, the open / close switch 20 may be closed.

  When both data communication and security service are used, it is preferable to use the one having the structure of claim 2. In this case, the opening / closing switch 20 is opened and the external line port 7l of the splitter 7 is connected to the external line side cascade device connection port 11aA. The audio port 7t is connected to the extension side cascade device connection port 11cA. The external line port 81 of the security device 8 is connected to the second external line side cascade device connection port 11cB, and the internal port 8t is connected to one of the internal line connection ports 11b. When using a connection device that does not have the extension line side cascade device connection port 11cA and the second outside line side cascade device connection port 11cB, connect the audio port 7t of the splitter 7 and the external line port 8l of the security device 8 with another cable. Then, the external line port 7l of the splitter is connected to the external line side cascade device connection port 11aA, and the internal port 8t of the security device 8 is connected to one of the internal line connection ports 11b.

  The security device 8 is often removed when use of the security service is stopped, and it may be necessary to remove it for system maintenance. In order to save the trouble of attaching and detaching the security device at this time, there is a device provided with a short-circuit switch between the external port 8l and the internal port 8t, but when this is not the case, the security device 8 is removed every time and the audio port of the splitter is removed. 7t must be changed from the extension side cascade device connection port 11cA to the extension connection port 11b.

  The telephone connection device according to the invention of claim 3 of the present application eliminates this hassle, and in the telephone connection device having the configuration of claim 2, the extension connection port and the extension side cascade device connection port are provided. A second connection line 31 to be connected and a second opening / closing switch 30 to cut off the second connection line are provided.

  According to the third aspect of the invention, when the security device 8 is to be disconnected, the second opening / closing switch 30 may be closed, and when security service is stopped and the security device 8 is removed, If the second open / close switch 30 is closed, it is not necessary to change the connection of the audio port 7t of the splitter 7.

  According to the present invention, in the case of using a data communication based on a method in which a data signal is superimposed on an audio signal in a home telephone wiring provided with communication outlets for connecting telephones to a plurality of locations in a house, and when using a security service In the case of not using these, the case of using any one of them, the case of using both, and the case of changing the combination of the use, There is an effect that necessary equipment connection and home telephone wiring connection switching work can be easily performed.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an entire home telephone wiring including a telephone connection device of the present invention. 1 is a telephone connection device of the present invention, 2 is a lead-in telephone line, 3 is a protector, and 4 is a telephone in a house. A communication outlet installed at a place where it may be installed, 6 is a preceding wiring (home telephone line) for connecting the telephone connection port 4t of each communication outlet and the telephone connection device 1, and 7 is used when using data communication. The splitter 8 to be used is a security device used when using the security service. When using the data communication of the method in which the voice signal and the data signal are folded on the lead-in telephone line 2, the splitter 7 is connected to the telephone connection device 1, and the security for notifying the security manager of the abnormality through the public telephone line is provided. When using the service, the security device 8 is connected to the telephone connection device 1.

  FIG. 2 is a diagram showing a first embodiment of the telephone connection device 1. In the figure, reference numeral 10a denotes a two-port external line connecting plate provided with two connectors 11a, and the same contacts of the two connectors 11a are connected to each other by an internal wiring 12a. 10b is an extension connection board composed of two four-port connection boards provided with four connectors 11b, and the same contacts of these eight connectors 11b are connected to each other by an internal wiring 12b. Is an extension side cascade device connection port 11bA, and the remaining one is an extension connection port connected to the home phone line 6. Reference numeral 20 denotes an open / close switch that is interposed in a connection line 21 that connects the internal wiring 12a of the external line connection plate and the internal wiring 12b of the internal line connection plate, and opens and closes the connection line 21. One of the connectors 11a of the external line connection plate is an external line connection port and is connected to the protector 3 by the cable 18, and the other one is an external line side cascade device connection port 11aA. Reference numeral 10c denotes an intermediate connection plate provided with two connectors 11c, and the same contacts of the two connectors 11c are connected by an internal wiring 12c. One of the two connectors 11c of the intermediate connection plate is an extension side cascade device connection port 11cA, and the other is a second outside line cascade device connection port 11cB.

  When a communication outlet 4 having a telephone connection port 4t and a digital device connection port 4d for connecting a personal computer or the like is used, a LAN home cable connected to the digital device connection port 4d is used as a data port of the splitter 7. Preliminary wiring is provided at a location where the modem 28 to be connected is to be installed.

  When neither data communication nor security service is used, the open / close switch 20 is closed and the connection line 21 is conducted. When using only data communication, the switch 20 is turned off to cut off the connection line 21, and the cable 18 connected to the external line port 7l of the splitter 7 is connected to the external line side cascade device connection port 11aA of the external line connection plate 10a. The cable 18 connected to the audio port 7t is connected to one of the connectors 11b of the extension connection plate.

  When using only the security service, the external line port 8l of the security device 8 is connected to the external line side cascade device connection port 11aA of the external line connection plate by the cable 18, and the internal line port 8t is connected to one of the connectors 11b of the internal line connection plate by the cable 18. Connect to.

  When both data communication and security services are used, the external line port 7l of the splitter 7 is connected to the external line side cascade device connection port 11aA of the external line connection plate with the cable 18 with the open / close switch 20 opened, and the audio port 7t. Is connected to one connector 11cA of the intermediate connection plate 10c by the cable 18. Then, the external port 8l of the security device 8 is connected to the remaining connector 11cB of the intermediate connection plate 10c by the cable 18, and the extension port 8t is connected to one of the connectors of the extension connection plate 11bA by the cable 18.

  The security device 8 may be desired to be disconnected from the telephone wiring for security system maintenance or the like. FIG. 3 shows a second embodiment of the telephone connection device considering this. In the figure, the same components as those in the first embodiment of FIG. Only the parts different from the first embodiment will be described below.

  In the apparatus of FIG. 3, the extension connecting plate 10b is divided into left and right, and the left and right connectors 11b are connected by the internal wiring 12b similar to that described in FIG. The patch cord 19 having plugs at both ends is connected to one of the connectors 11b on the left and right connecting plates.

  An important feature of the apparatus of the second embodiment is that the internal wiring 12c of the intermediate connection plate 10c is connected to the internal wiring 12b of the extension connection plate by a second connection line 31 having a second opening / closing switch 30 interposed therebetween. That is. As described above, when both data communication and security service are used, the splitter 7 is connected between the external connection plate 10a and the intermediate connection plate 10c, and the security device 8 is connected to the intermediate connection plate 10c and the internal connection plate 10b. At this time, the second opening / closing switch 30 is opened. In order to disconnect the security device 8 in this state, the second opening / closing switch 30 may be closed to short-circuit the intermediate connection plate 10c and the extension connection plate 10b. When using only the security service, the external port 8l of the security device 8 is connected to the external connection plate 10a, the internal port 8t is connected to the intermediate connection plate 10c, and the second opening / closing switch 30 is closed. Keep it. When it is desired to disconnect the security device 8, the open / close switch 20 is closed to short-circuit the external line connection plate 10a and the internal line connection plate 10b.

  In addition, if the 3rd connection line which interposed the 3rd opening / closing switch was provided between the external line connection board 10a and the intermediate | middle connection board 10c, the state which connected the splitter 7 and the security apparatus 8 by the connection aspect mentioned above Although it is possible to remove only the splitter without changing the connection state of the security device, it is considered that such a need rarely occurs.

  FIG. 4 is a diagram showing a third embodiment of the telephone connection device of the present invention, which is composed of the right or left half of the device configuration of FIG. 3, and the intermediate connection plate 10c is removed from the device of FIG. It is a thing of composition. In the structure of the third embodiment, when both data communication and security service are not used and when one of them is used, the connection is the same as that of the first embodiment, but when both are used, The voice port 7t of the splitter and the external line port 8l of the security device are directly connected with a separate cable for use.

Block diagram of home telephone wiring using telephone connection device of this invention The figure which shows the telephone connection apparatus of 1st Example. The figure which shows the telephone connection apparatus of 2nd Example. The figure which shows the telephone connection apparatus of 3rd Example.

Explanation of symbols

11a External connection port
11b Extension port
11aA Outer side cascade device connection port
11cA extension side cascade device connection port
11cB Second external line side cascade device connection port
12a Internal wiring
12c Internal wiring
20 Open / close switch
21 Connection line
30 Second open / close switch
31 Second connection line

Claims (3)

Multiple external connection ports (11b) that are connected to each other, an external connection port (11a) that connects to the public communication line, and an external line side cascade device connection port that is always connected to this external connection port by internal wiring (12a) ( 11aA), a telephone connection device comprising a connection line (21) for connecting the extension line connection port and the external line connection port, and an open / close switch (20) for cutting off the connection line.   The extension side cascade device connection port (11cA) and the second outside line side cascade device connection port (11cB) connected to the extension side cascade device connection port by an internal wiring (12c). Telephone connection device.   The second connection line (31) for connecting the extension connection port and the extension side cascade device connection port, and a second opening / closing switch (30) for cutting off the second connection line. The telephone connection device according to 2.

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