JP2012129612A - Tv signal selection switch, information wiring board using the same, and tv wiring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a TV signal selection switch capable of easily changing sources of TV signals without a large-scaled wiring work, to provide an information wiring board using the same, and to provide a TV wiring system.SOLUTION: A TV signal selection switch 1 comprises: input terminals T1 and T2 to which input cables from TV signal sources (for example, an antenna or a visual-optical network unit) are each connected; and an output terminal T3 to which an output cable for a TV signal is connected. The input terminal T1 and the output terminal T3 are provided on the rear side of a body 10, and the input terminal T2 is provided on the front face of the body 10. Additionally, a slide switch 11 is disposed on the front face of the body 10, and a selection switch is housed in the body 10. This selection switch connects either the input terminal T1 or the input terminal T2, selected from the input terminal T1 and the input terminal T2 depending on a selecting operation of the slide switch 11 by the user, with the output terminal T3.

Description

  The present invention relates to a TV signal selector switch, an information wiring board using the same, and a TV wiring system.

  FIG. 6A shows a system configuration diagram of a TV wiring system in a general house. A coaxial cable C1 drawn into the house from the antenna 2 installed outside the house A1 is connected to the distributor 3. A plurality of rooms B1, B2, and B3 of the house A1 are provided with TV outlets 4, respectively. The TV outlets 4 can be connected to coaxial cables from a television receiver (not shown) installed in each room. It has become. The TV outlet 4 and the distributor 3 in each room are connected via a coaxial cable C2, and the TV signal distributed by the distributor 3 is input to the TV outlet 4 in each room. Can be viewed. Such a distributor 3 is installed behind the ceiling in a state where maintenance is possible.

  Conventionally, an antenna line drawing device to which an antenna line drawn indoors from an outdoor antenna is connected has a built-in distributor for distributing a TV signal inputted from the antenna into a plurality of pieces (for example, Patent Document 1).

JP 7-58658 A

  In recent years, large-capacity and high-speed communication services using optical fiber lines are being introduced to ordinary households, and services for transmitting television broadcasts using optical fiber lines are also provided. FIG. 6B is a configuration example of a system in which a television broadcast can be viewed using an optical fiber line in the house A1 that has received the TV signal from the antenna 2. In this system, a TV line terminator 5 called a V-ONU (Visual-Optical Network Unit) is installed in a house A1, and an optical fiber cable C3 drawn into the house is connected to the TV line terminator 5. The TV line terminating device 5 separates a TV signal from an optical signal transmitted through an optical fiber cable C3, converts the TV signal into an electric signal, and outputs the electric signal to a coaxial cable C4. The TV line terminator 5 is connected to a communication line terminator 6 called an ONU (Optical Network Unit) via an optical fiber cable C5. Conversion between the signal and the information signal).

  Here, in order to switch the TV signal input source to the TV line terminator 5, first, the coaxial cable C1 from the antenna 2 is disconnected from the input terminal 3a of the distributor 3, and then the TV line terminator 5 is connected. It is necessary to perform an operation of connecting the coaxial cable C4 to the input terminal 3a of the distributor 3.

  As described above, in the existing house A1, in order to switch to television viewing using an optical fiber line, a new coaxial cable C4 is provided from the distributor 3 installed behind the ceiling to the installation site of the TV line terminator 5. Wiring was necessary, and extensive construction was required.

  The present invention has been made in view of the above problems, and the object of the present invention is to use a TV signal selector switch that can easily change the input source of a TV signal without carrying out extensive wiring work. An object is to provide an information wiring board and a TV wiring system.

  The TV signal selector switch according to the present invention includes a plurality of input terminals to which an input cable from a TV signal input source is connected, an output terminal to which an output cable for TV signals is connected, and a plurality of input terminals. And a signal switching unit for connecting the input terminal selected in response to the selection operation to the output terminal.

  In this TV signal changeover switch, it is preferable that the device body is provided with attachment means for attaching the device body to the attachment frame attached to the construction surface.

  In this TV signal changeover switch, the mounting frame is a mounting frame of a large-angle continuous wiring apparatus standardized by Japanese Industrial Standards, and the body is formed in a size conforming to the size of the large-angle continuous wiring apparatus. It is also preferable.

  In this TV signal changeover switch, it is also preferable that at least one of the plurality of input terminals is arranged in a portion exposed to the front side of the construction surface in the body.

  In this TV signal changeover switch, it is also preferable that the selection operation means of the signal changeover unit is arranged at a portion exposed on the front side of the construction surface in the body.

  The information wiring board of the present invention is characterized in that the above-mentioned TV signal changeover switch and a wiring device for communication are housed inside the board body.

  The TV wiring system of the present invention also includes the above-described TV signal selector switch, a TV antenna connected to the TV signal selector switch via an input cable, and an output cable connected to the TV signal selector switch via an output cable. A distribution device that distributes a TV signal input through the distribution device; and a TV outlet that is connected to a device wiring from the reception device and outputs the TV signal distributed and output from the distribution device to the reception device. To do.

  According to the present invention, there is provided a TV signal changeover switch, an information wiring board using the TV signal changeover switch, and a TV wiring system that can easily change the input source of the TV signal without carrying out extensive wiring work.

(A) is a front view of the state which attached the TV signal selector switch of this embodiment to the plate apparatus, (b) is a back view of a TV signal selector switch. It is a perspective view of the state which attached the TV signal changeover switch same as the above to the attachment frame. It is an internal wiring diagram of a TV signal changeover switch same as the above. (A) and (b) are the system block diagrams of the TV wiring system of this embodiment. The information wiring board of this embodiment is shown, (a) is a front view, (b) is a front view of the state which removed the cover. (A) and (b) are the system block diagrams of the conventional TV wiring system.

  A TV signal changeover switch of this embodiment and a TV wiring system using the same will be described with reference to the drawings. In the description of the TV signal selector switch, the vertical and horizontal directions are defined in the direction shown in FIG. 1A, and the direction perpendicular to the paper surface of FIG.

  FIG. 3 is an internal wiring diagram of the TV signal selector switch 1. The TV signal selector switch 1 is an input selected from a plurality (two in this embodiment) of input terminals T1 and T2, an output terminal T3, and input terminals T1 and T2 according to a user's selection operation. A changeover switch 12 (signal switching unit) that connects the terminal T1 or T2 to the output terminal T3 is provided. In this embodiment, there is one output terminal T3. However, a plurality of output terminals are provided in order to branch or distribute and output the TV signal from the input terminal T1 or T2 selected by the changeover switch 12. Also good.

  The container 10 of the TV signal change-over switch 1 is made of a synthetic resin molded product, and this container 10 is formed in a single module size standardized as a large-angle continuous wiring apparatus in the JIS standard (FIGS. 1 and 2). Here, the one-module size means that a maximum of the three mounting frames 20 of the large square continuous wiring device which is a kind of embedded wiring device attached in a state of being embedded in a construction surface such as a wall surface. It means the dimension that can attach up to three. Therefore, the TV signal selector switch 1 can be attached to the attachment frame together with other large-angle continuous wiring devices. Note that the size of the container 10 is not limited to a single module size, and may be formed in two or three module sizes as long as the size can be attached to the mounting frame 20.

  The body 10 is formed in a box shape having a substantially rectangular front surface. The front surface of the vessel body 10 has a rectangular shape when viewed from the front, and is provided with a boss portion 14 protruding forward in the center in the left-right direction. The boss portion 14 protrudes forward from the mounting frame 20. (Ie, exposed on the front side of the construction surface).

  An input terminal T1 and an output terminal T3 each made of an F-type coaxial connector (receptacle type) are arranged side by side in the left-right direction on the upper surface of the rear portion of the vessel body 10.

  The vessel body 10 is provided with a round hole 15 slightly above the center of the boss portion 14, and an input terminal T <b> 2 made of an F-type coaxial connector (receptacle type) is disposed in the round hole 15. Further, the operation knob 11 (selection operation means) of the changeover switch 12 described above is disposed on the boss portion 14 of the container body 10 below the round hole 15. The operation knob 11 is disposed in a horizontally long hole 16 provided on the front surface of the vessel body 10 and is slidable in the left-right direction.

  Here, when the user moves the operation knob 11 to one end side (for example, the left side) in the left-right direction, the changeover switch 12 is switched to the input terminal T1 side, and when the operation knob 11 is moved to the opposite side, the changeover switch 12 is Switching to the input terminal T2 side is possible.

  In addition, two locking claws 13 (attachment means) for attachment to the attachment frame 20 are provided on each of the left and right side surfaces of the vessel body 10.

  The TV signal selector switch 1 is fixed to the construction surface using a synthetic resin mounting frame 20 as shown in FIG. The mounting frame 20 has a rectangular frame shape in which the upper frame 23 is connected between the upper ends of the left and right side frames 21, 22 and the lower frame 24 is connected between the lower ends of the side frames 21, 22. The boss portion 14 on the front surface of the TV signal changeover switch 1 is inserted into an opening surrounded by the frame 23 and the lower frame 24.

  A flexible piece 25 extends rearward from one side frame 21, and a locking claw 13 provided on the body 10 is provided between the operation piece 25 a provided on the flexible piece 25 and the side frame 21. Is formed with a holding hole 26a. The other side frame 22 is also formed with a holding hole 26b into which the locking claw 13 is inserted. Therefore, when the installer attaches the TV signal changeover switch 1 to the attachment frame 20, the operator holds the container 10 and inserts the locking claw 13 on one side into the holding hole 26b, and then flexes with the side frame 21. If the opposite locking claw 13 is inserted into the holding hole 26 a between the piece 25, the container 10 is attached to the attachment frame 20. Conversely, when the builder removes the instrument 10 from the mounting frame 20, if the builder flexes the operation piece 25a away from the instrument 10 using a tool such as a flat-blade screwdriver, the engagement hole 26a is engaged. Since the pawl 13 comes off, the body 10 can be easily removed.

  Each of the upper frame 23 and the lower frame 24 is provided with a horizontally long box hole 27. When the mounting frame 20 is attached to an embedded box (not shown) embedded in a construction surface such as a wall surface, the box hole 27 is provided. A box screw (not shown) that is passed through can be screwed into the embedding box. Further, hook holes 28 are formed on the left and right sides of the box hole 27. When attaching the mounting frame 20 to a panel material such as a wall panel, the hooking hole 28 is inserted into one end of a hooking metal fitting (not shown) into the hooking hole 28 so that the hooking metal piece can be rotated with respect to the mounting frame 20. Used to support in. Here, when a fastening screw (not shown) that is screwed into the hook metal through the box hole 27 is tightened with one end of the hook metal inserted into the hook hole 28, the hook metal rotates around the one end, The other end portion of the hook metal comes close to the mounting frame 20. Thus, if the opening is formed in the panel material and the peripheral portion of the opening is sandwiched between the mounting frame 20 and the hook metal fitting, the mounting frame 20 can be fixed to the panel material. Further, a screw hole 29 is formed in the vicinity of the box hole 27, and a mounting screw is passed through a plate frame (not shown) formed of a synthetic resin into a frame shape, and the mounting screw is screwed into the screw hole 29. Thus, the plate frame is fixed to the mounting frame 20, and the front side of the mounting frame 20 is covered by the plate frame. As shown in FIG. 1A, the decorative plate 30 is attached to the front side of the plate frame by hooking a locking claw (not shown) provided on the back surface of the decorative plate 30 into the hole of the plate frame. The screw head is hidden from view. Here, the boss portion 14 of the TV signal changeover switch 1 is exposed to the front surface through a window hole 31 provided in the decorative plate 30.

  In FIG. 2, a coaxial cable C4 from the TV line terminating device 5 is also shown. An F-type plug 51 made of an F-type coaxial connector (plug type) is attached to the coaxial cable C4. Thus, the F-type plug 51 can be connected to the input terminal T2 by screwing the sleeve 52 provided on the F-type plug 51 into the screw portion of the coaxial connector constituting the input terminal T2. .

  FIG. 4A is a system configuration diagram of a TV wiring system using the above-described TV signal selector switch. In the configuration example of FIG. 4A, the TV signal received by the antenna 2 is distributed to the TV outlet 4 in each room.

  In this TV wiring system, the TV signal change-over switch 1 is installed at an appropriate place in the house A1 (for example, an installation space for a TV line terminating device 5 and a communication line terminating device 6 described later). The coaxial cable C1 drawn into the house from the antenna 2 installed outside the house A1 is connected to the input terminal T1 of the TV signal selector switch 1 installed on the wall surface in the house. One end of a coaxial cable C6 is connected to the output terminal T3 of the TV signal selector switch 1, and the other end of the coaxial cable C6 is connected to, for example, an input terminal 3a of a distributor 3 installed behind the ceiling. The distributor 3 is provided with a plurality of output terminals 3b, and the TV outlets 4 respectively installed in the plurality of rooms B1, B2, B3 in the house are connected to the output terminals 3b of the distributor 3 via the coaxial cables C2, respectively. Has been. The TV outlet 4 is installed on the construction surface, and an F-type coaxial connector 4a is arranged at a portion exposed on the front side of the construction surface, and the equipment wiring C7 (consisting of a coaxial cable) from the receiving device 60 such as a television is coaxial. Connected to the connector 4a. Thus, the receiving device 60 is connected to the distributor 3 via the TV outlet 4 and can receive the TV signal distributed by the distributor 3.

  In the system configuration of FIG. 4A, the user operates the operation knob 11 to switch the changeover switch 12 to the input terminal T1 side (input side from the antenna 2), and the TV signal received by the antenna 2 is The signal is output to the distributor 3 through the TV signal selector switch 1. At this time, the distributor 3 distributes the TV signal received by the antenna 2 into a plurality, and the distributed output is supplied to the TV outlets 4 of the rooms B1, B2, and B3. The received TV signal can be supplied to the receiving device 60 installed in each room.

  FIG. 4B shows a system configuration diagram in the case where a service for receiving a TV signal via an optical fiber line is introduced into such an existing house A1. The optical fiber cable C3 introduced from outside the house into the house is connected to a TV line terminator (V-ONU) 5 installed in the house, and is transmitted via the optical fiber cable C3 by the TV line terminator 5. The TV signal is separated from the optical signal to be converted into an electric signal. One end of the coaxial cable C4 is connected to the TV signal output terminal of the TV line terminating device 5, and the other end of the coaxial cable C4 is connected to the input terminal T2 of the TV signal changeover switch 1. Here, since the input terminal T2 is provided in the part (front surface of the boss | hub part 14) exposed to the front side of a construction surface in the container 10 of the TV signal selector switch 1, it only inserts the coaxial cable C4 from the indoor side. Construction can be done with no need for extensive wiring work.

  When the user operates the operation knob 11 to switch the changeover switch 12 from the input terminal T1 side to the input terminal T2 side (TV line terminator 5 side), the TV line is used instead of the TV signal from the antenna 2. The TV signal from the termination device 5 is output to the distributor 3 via the TV signal changeover switch 1. At this time, the distributor 3 distributes the TV signal received by the TV line terminating device 5 into a plurality, and the distributed output is supplied to the TV outlets 4 in the rooms B1, B2, and B3. Therefore, the TV signal transmitted via the optical fiber cable C3 can be supplied to the receiving device 60 connected to the TV outlet 4 in each room, and a television broadcasting service using the optical fiber cable C3 can be used.

  As described above, in the TV signal selector switch 1 of the present embodiment, a plurality of (for example, two in this embodiment) input terminals T1 and T2, an output terminal T3, and a selector switch 12 as a signal switching unit. The container 10 is provided. An input cable from a TV signal input source is connected to each of the plurality of input terminals T1, T2. For example, a coaxial cable C1 from the antenna 2 is connected to the input terminal T1, and a TV line terminating device is connected to the input terminal T2. A coaxial cable C4 from 5 is connected. An output cable for TV signals (coaxial cable C6 to distributor 3) is connected to output terminal T3. The changeover switch 12 connects the input terminal T1 or T2 selected according to the user's selection operation to the output terminal T3.

  Thereby, even when the input source of the TV signal output to the output terminal T3 is switched to any of a plurality of input terminals, the output cable that connects the output destination device (for example, the distributor 3) and the output terminal T3. There is no need to rewire. Therefore, the input source of the TV signal can be easily changed without carrying out extensive wiring work.

  Further, the container 10 of the TV signal changeover switch 1 is provided with a locking claw 13 (attachment means) for attaching the container 10 to the attachment frame 20 attached to the construction surface.

  Thereby, the body 10 of the TV signal selector switch 1 can be easily attached to a construction surface such as a wall surface using the attachment frame 20.

  The mounting frame 20 is a mounting frame for a large-angle continuous wiring apparatus standardized by Japanese Industrial Standards (JIS), and the body 10 of the TV signal changeover switch 1 conforms to the size of the large-angle continuous wiring apparatus. It is formed in a size (for example, one module size).

  Thereby, the user can construct the TV signal change-over switch 1 on the construction surface by using the mounting frame 20 standardized by JIS, and can be used by being attached to the mounting frame 20 together with other large square continuous wiring devices. it can.

  In this embodiment, the mounting frame 20 that is standardized by the JIS standard is used, but the mounting frame 20 is a standard other than the JIS standard (a standard other than the JIS standard or a standard by a country or organization other than Japan). ) Or standardized by a manufacturer or the like, although not standardized.

  Further, in the body 10 of the signal changeover switch 1, at least one of the plurality of input terminals T1 and T2 (one input terminal T2 in the present embodiment) is exposed to a portion (boss portion 14) exposed on the front side of the construction surface. ) Is arranged.

  Thereby, the operation | work which connects an input cable to the input terminal T2 from the front side of a construction surface can be performed, without removing the signal selector switch 1 from a construction surface. Therefore, even when a new TV signal input source is introduced in an existing house, an input cable from the new TV signal input source (for example, the coaxial cable C4 from the TV line terminating device 5) is connected to the signal changeover switch 1. Can be easily connected to the input terminal T2.

  Further, in the body 10 of the signal changeover switch 1, an operation knob 11 for the changeover switch 12 is disposed at a portion (boss portion 14) exposed on the front side of the construction surface.

  Thus, the TV signal input source can be switched by operating the operation knob 11 from the front side of the construction surface without removing the signal selector switch 1 from the construction surface.

  The TV wiring system of this embodiment includes the TV signal change-over switch 1 described above, an antenna 2 (TV antenna), a distributor 3, and a TV outlet 4. The antenna 2 is connected to the TV signal selector switch 1 via an input cable (coaxial cable C1). The distributor 3 is connected to the TV signal selector switch 1 via an output cable (coaxial cable C6), and distributes a TV signal input via the output cable into a plurality of parts. The TV outlet 4 is connected to the device wiring C 7 from the receiving device 60 and outputs the TV signal distributed and output from the distributor 3 to the receiving device 60.

  As a result, the TV signal selector switch 1 outputs either the TV signal input from the antenna 2 or the TV signal input from another input terminal to the distributor 3 in accordance with the switching operation of the operation knob 11. it can. Then, the TV signal distributed in plural by the distributor 3 is output to the TV outlet. Therefore, even when the TV signal output to the distributor 3 is switched to either the TV signal from the antenna 2 or the TV signal input to another input terminal, the distributor 3 and the TV signal selector switch 1 There is no need to reroute the output cables that connect them. Therefore, the input source of the TV signal can be easily changed without carrying out extensive wiring work.

  By the way, in the above-described embodiment, the TV signal change-over switch 1 is attached to the construction surface using the attachment frame 20, but the TV signal change-over switch 1 is attached to the information wiring board 40 as shown in FIGS. May be stored.

  The board body of the information wiring board 40 is configured by combining a body 41 and a cover 42 each made of a synthetic resin molded product.

  The body 41 has a substantially box shape with an open front surface, and is fixed to the construction surface with the rear surface facing a construction surface (for example, a wall surface).

  The cover 42 has a substantially box shape in which a substantially entire rear surface is opened and a rectangular opening 42 a is provided in a part of the front surface, and is detachably attached to the front side of the body 41.

  A through hole (not shown) is opened on the back surface of the body 41, and the optical fiber cable C3a introduced into the inside of the panel body from the through hole is connected to the optical connector 44 held by the body 41. ing. The optical connector 44 connects the optical fiber cables in an optically coupled state, and is exposed to the outside from the lower surface of the body 41. Thus, when the other end of the optical fiber cable C3b whose one end is connected to the TV line terminator 5 is connected to the optical connector 44, the optical fiber line from outside the house is connected to the TV line terminator 5. become.

  The body 41 is provided with the above-described TV signal selector switch 1 and the power outlet 45 arranged one above the other, and a connection unit 43 described later on the right side thereof. The TV signal selector switch 1, the power outlet 45, and the connection unit 43 are exposed to the outside through an opening 42 a provided in the cover 42.

  In addition, two telephone plug insertion holes 46a and 46b into which a six-pole two-core modular plug (not shown) for a telephone is inserted are provided on the left side of the front surface of the connection unit 43. Telephone telephone jacks (not shown) are respectively held inside the telephone plug insertion holes 46a and 46b, and the modular plugs inserted into any of the telephone plug insertion holes 46a and 46b are the telephone plug insertion holes. It is inserted and connected to a telephone modular jack in 46a and 46b. A plurality of sets (for example, six sets) of telephone line connection terminals 48 are arranged below the connection unit 43.

  One set of the telephone line connection terminals 48 is a subscriber line connection terminal into which the other end of a telephone line (subscriber line) having one end connected to the protector is inserted. The other one of the telephone line connection terminals 48 is a LINE connection terminal, and is electrically connected to a telephone modular jack (hereinafter referred to as a LINE modular jack) in the upper telephone plug insertion hole 46a. LINE system. The remaining sets of the telephone line connection terminals 48 are respectively connected to telephone outlets 9 in each room via home wiring. These telephone connection terminals and a telephone modular jack (hereinafter referred to as TEL modular jack) in the lower telephone plug insertion hole 46b are electrically connected to constitute a TEL system.

  A changeover switch 49 is disposed on the front surface of the connection unit 43, and the subscriber line connection terminal is connected to either the LINE system or the TEL system in accordance with the switching operation of the changeover switch 49.

  Here, when a service such as ADSL is not used, the subscriber line connection terminal is switched to the TEL system using the changeover switch 49, and the telephone outlet 9 in each room is connected to the subscriber line. Yes. In this case, the LINE system disconnected from the subscriber line connection terminal can be used for a separate connection in which a device connected to the LINE connection terminal and a device connected to the LINE modular jack are connected to each other.

  When using a service such as ADSL, the changeover switch 49 is used to switch and connect the subscriber line connection terminal to the LINE system. For example, the input terminal of the splitter is connected to the LINE modular jack, and the ADSL output terminal of the splitter is connected to the modem, while the TEL output terminal of the splitter is connected to the TEL modular jack.

  Also when using an IP phone, the changeover switch 49 is used to switch the subscriber line connection terminal to the LINE system, thereby disconnecting the TEL system from the subscriber line connection terminal. If an IP telephone adapter (not shown) is connected to, for example, a TEL modular jack of the TEL system, the telephone outlets 9 in each room connected to the TEL system can be connected to the IP telephone adapter.

  A LAN plug insertion hole 47 is provided on the right side of the front surface of the connection unit 43, and a LAN modular jack (not shown) is arranged in the LAN plug insertion hole 47. A plurality of LAN modular jacks are arranged on the lower surface of the connection unit 43, and the plurality of LAN modular jacks are connected to a LAN outlet 8 of each room via a LAN wiring in the house. A switching hub circuit is housed in the connection unit 43, and a signal is transmitted between the modular jack in the LAN plug insertion hole 47 and the LAN outlet 8 in each room connected to the modular jack for LAN on the lower surface. Is relaying. Thus, when the communication line terminator 6 connected to the TV line terminator 5 is connected to the modular jack arranged in the LAN plug insertion hole 47, it is connected to the LAN outlet 8 in each room. A communication device can be connected to the communication line termination device 6 via a switching hub circuit.

  As described above, the information wiring board 40 of the present embodiment includes the TV signal changeover switch 1 described above, a telephone wiring device for telephone communication (consisting of the connection unit 43 and the telephone line connection terminal 48), and an information communication board. The information wiring device (comprising the connection unit 43) is housed inside the panel body (comprising the body 41 and the cover 42).

  Thereby, in the TV signal selector switch 1, a TV signal input from the antenna 2 or another TV signal input source (for example, TV line terminating device 5) is input according to the switching operation of the operation knob 11. Any of the TV signals can be output to the distributor 3. Then, the TV signal distributed in plural by the distributor 3 is output to the TV outlet. Therefore, even when the TV signal output to the distributor 3 is switched to either the TV signal from the antenna 2 or the TV signal input to another input terminal, the distributor 3 and the TV signal selector switch 1 There is no need to reroute the output cables that connect them. Therefore, it is possible to easily change the TV signal input source without carrying out extensive wiring work.

1 TV signal selector switch 2 Antenna (TV antenna)
3 Distributor 4 TV outlet 5 TV line termination device 10 Body 11 Operation knob (selection operation means)
12 changeover switch (signal switching part)
13 Claw (Mounting means)
14 Boss C1, C4 Coaxial cable (input cable)
C5 Coaxial cable (output cable)
T1, T2 input terminal T3 output terminal

Claims (7)

  Each of a plurality of input terminals to which an input cable from a TV signal input source is connected, an output terminal to which a TV signal output cable is connected, and the plurality of input terminals are selected according to a user's selection operation. And a signal switching unit for connecting the input terminal to the output terminal.   2. The TV signal change-over switch according to claim 1, wherein the container is provided with attachment means for attaching the container to an attachment frame attached to the construction surface.   The mounting frame is a mounting frame for a large-angle continuous wiring apparatus standardized by Japanese Industrial Standards, and the vessel is formed in a size that conforms to the size of the large-angle continuous wiring apparatus. The TV signal selector switch according to claim 2.   4. The TV signal switching according to claim 2, wherein at least one of the plurality of input terminals is disposed in a portion of the container that is exposed to the front side of the construction surface. 5. switch.   4. The TV signal change-over switch according to claim 2, wherein selection operation means of the signal change-over unit is arranged at a portion exposed on the front side of the construction surface in the container.   An information wiring board comprising: the TV signal selector switch according to claim 1; a telephone wiring device for telephone communication; and an information wiring device for information communication. A TV signal selector switch according to any one of claims 1 to 6,
A TV antenna connected to the TV signal selector switch via the input cable;
A distributor connected to the TV signal changeover switch via the output cable and distributing a TV signal input via the output cable into a plurality of;
A TV wiring system comprising a TV outlet connected to a device wiring from a receiving device and outputting a TV signal distributed and output from the distributor to the receiving device.

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