JP2007103132A - Wiring accessory for coaxial cable communication - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow coaxial cable communication by a communication apparatus while securing power for a personal computer and other apparatus in an office, a dwelling house or the like. <P>SOLUTION: A plurality of modular jacks 4 are mounted to the undersurface of a housing 1 and a plurality of plug blade insertion openings 6, 6 are arranged side by side on the front surface of the housing 1. A plurality of sets of blade rests 7, 7 connected to power lines via a power cord 2 and a communication interface part 11 connected to a coaxial cable of indoor wiring via a lead-in coaxial cable 3 are housed in the housing 1. Thereby, the coaxial cable communication can be implemented by a communication apparatus such as a personal computer via a communication cable connected to the modular jack 4, and, when plug blades of the power plug of an apparatus such as a personal computer are inserted into the plug blade insertion openings 6 formed on the front surface of the housing 1, power can be fed to the apparatus through the blade rests 7 in the housing 1 and the power cord 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a coaxial cable communication wiring device for performing data communication using a coaxial cable wired indoors such as an office or a house.

  In recent years, a local area network (LAN) in which a plurality of computers are connected is rapidly spreading in offices and houses. A communication cable (so-called LAN cable) is usually used as a communication medium for connecting computers in such a LAN. However, when a new LAN is introduced into an existing office or house, the labor and cost of wiring work are reduced. Considering this, a radio system using radio waves may be adopted. Also, in recent houses (including both detached houses and apartment houses), indoor wiring (coaxial cable) is pre-wired for receiving television broadcasts, and the television outlet on the wall is connected to the television via the coaxial cable. The television broadcast can be viewed by connecting the receiver, but a data communication service (so-called “CATV Internet”) that uses the indoor wiring of the coaxial cable as the transmission path is widely provided by the CATV provider. It is becoming popular. In order to use the data communication service, a communication modem (generally called a cable modem) for modulating / demodulating communication signals via a coaxial cable is required, and a cable modem connected to a TV outlet via a coaxial cable. Needs to be connected to a communication device (mainly a personal computer) on the consumer side via a LAN cable.

On the other hand, a television outlet incorporating the function of the cable modem has been proposed on the assumption that indoor wiring of a coaxial cable is used as a data communication transmission line (see, for example, Patent Document 1). In the following, data communication using the indoor wiring of a coaxial cable including the CATV Internet as a transmission path will be referred to as “coaxial cable communication”.
JP 2002-199541 A

  By the way, in what is described in Patent Document 1, it is necessary to supply power from the outside in order to use the function of the cable modem, and for that purpose, a connector for supplying power is provided. However, if the power outlet is occupied for power supply to the TV outlet, there is a problem that it is difficult to secure the power source of the personal computer and other devices.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a coaxial cable communication wiring device capable of performing coaxial cable communication with a communication device while ensuring the power supply of another device.

  In order to achieve the above object, the invention of claim 1 is provided with a power cord connected to a power line wired indoors by plugging and connecting a power plug attached to the tip to an outlet, and attached to the tip. A coaxial cable for connection connected to a coaxial cable wired indoors by connecting the coaxial plug connector to the coaxial receptacle connector, a housing that is formed in a substantially box shape and into which the power cord and the coaxial cable for pull-in are drawn, A communication modem that modulates and demodulates communication signals via a coaxial cable that is housed in the housing and connected to the coaxial cable for retraction, a communication interface that is housed in the housing and that interfaces between the communication modem and the communication device, A communication cable that is provided on the surface of the housing and connects the communication device and the communication interface can be inserted and removed freely. One or more communication connectors, and one or more blade receptacles housed in a housing and connected in parallel to the power line via a power cord, and plug blades of power plugs of other devices are inserted. One or a plurality of plug blade insertion openings for connection to the blade receiver are provided on the surface of the housing.

  According to a second aspect of the present invention, in the first aspect of the present invention, one or a plurality of branch coaxial receptacle connectors provided on the surface of the housing and branch-connected to the drawing coaxial cable in the housing are provided.

  The invention of claim 3 is the invention of claim 1 or 2, wherein the housing is formed in a flat box shape, the communication connector is provided on a surface narrower than the other surface, and wider than the surface. A plug blade insertion port is provided on the other surface.

  According to the first aspect of the present invention, power can be supplied to another device via one or more blade supports, and coaxial cable communication can be performed by a communication device connected to the communication connector.

  According to invention of Claim 2, a coaxial cable can be sent and wired.

  According to invention of Claim 3, a housing can be reduced in size.

  As shown in FIGS. 1 and 2, the coaxial cable communication wiring device of the present embodiment has a power cord that is connected to a power line that is wired indoors by plugging and connecting a power plug 2 a provided at the tip to an outlet. 2, a coaxial cable connector 3a connected to a coaxial cable wired indoors by connecting a coaxial plug connector 3a attached to the tip to a coaxial receptacle connector (not shown) (for example, a TV outlet), and a box A power cord 2 and a housing 1 into which a coaxial cable 3 for drawing is drawn. However, in the following description, the vertical and horizontal directions are defined with reference to FIG. 1A, and the direction perpendicular to the paper surface is defined as the front-rear direction.

  The housing 1 is made of a flat, substantially box-shaped synthetic resin molded product. The power cord 2 and the coaxial cable 3 for drawing are drawn from the right side, and the lower surface is attached to the tip of a communication cable (CAT5 LAN cable). Two receiving connectors (modular jacks 4 of RJ-45) to which connectors (RJ-45 modular plugs) are connected so as to be freely inserted and removed are exposed in a line, and a coaxial cable 3 for drawing in the housing 1 Two branch coaxial receptacle connectors 5 that are branched and connected together with the modular jack 4 are exposed in a row. In addition, two sets of plug blade insertion ports 6 and 6 into which plug blades of power plugs of other devices are inserted are arranged in front of the housing 1, and each set of plug blade insertion ports 6 is arranged in the housing 1. A plurality (two sets) of blade receivers 7 and 7 for receiving the plug blades inserted into the are stored. Furthermore, a plurality (two) of display elements (light emitting diodes) LD are exposed at the lower front of the housing 1. The modular jack 4 includes a door 4a that can be opened and closed so that the modular plug can be opened and closed. When the modular plug is not connected, the plug is closed by the door 4a. Foreign matter does not enter inside.

  FIG. 3 is a block diagram showing a circuit configuration of a coaxial cable communication wiring device. A total of two sets of blade receivers 7 are connected in parallel to a pair of electrical paths connected to the power line via the power cord 2, and a power supply unit 8 including an AC / DC converter is connected. Further, a branch distribution unit 9 for branching and distributing the coaxial line connected to the drawing coaxial cable 3, and one of the coaxial lines branched and distributed by the branch distribution unit 9 is further divided into two to provide two branch coaxial receptacle connectors 5. , 5 is provided, and a communication interface unit 11 is connected to the other coaxial line branched and distributed by the branch distribution unit 9.

  The communication interface unit 11 includes a transmission / reception unit 12 for transmitting / receiving a signal for coaxial cable communication (hereinafter referred to as a communication signal) via a coaxial line, a demodulation function for demodulating a data signal from a communication signal in a predetermined format, and Between a cable modem 13 having a modulation function for modulating transmission data on a communication device side such as a personal computer into a communication signal of a predetermined format, and a communication device via a communication cable (LAN cable) connected to each modular jack 4 The LAN controller 14 for performing data transmission in conformity with a standard such as 100BASE-TX, and the controller 15 having the CPU as a main component and controlling the entire communication interface unit 11 are provided. For example, the control unit 15 controls the display unit 16 to notify that the data (packet) filtering is performed between the cable modem 13 and the LAN controller 14 and that data transmission is in progress. 16 has a function of causing a plurality of display elements LD to have light emission. The communication interface unit 11 is operated by a DC power source created by the power source unit 8.

  Thus, the coaxial cable communication wiring device of this embodiment can function as a line concentrator (hub) by including a plurality of modular jacks 4 connected in parallel to the LAN controller 14. Coaxial cable communication can be performed by a plurality of communication devices such as a personal computer via communication cables connected to the plurality of modular jacks 4, and the personal computer is inserted into the plug blade insertion port 6 provided on the front surface of the housing 1. If a plug blade of a power plug of a device is inserted, it is possible to supply power to the device via the blade receiver 7 and the power cord 2 in the housing 1. Further, in the present embodiment, since a plurality of branching coaxial receptacle connectors 5 provided on the front surface of the housing 1 and branchedly connected to the drawing coaxial cable 3 in the housing 1 are provided, the coaxial cable can be fed and wired. it can. Further, the housing 1 is formed in a flat box shape, and a modular jack 4 and a coaxial coaxial connector connector for branching 5 that are relatively small are provided on a surface (lower surface) narrower than the other surfaces. In addition, since the relatively large plug blade insertion opening 6 is provided on the other wide surface (front surface), the housing 1 can be reduced in size.

The embodiment of this invention is shown, (a) is a front view, (b) is a bottom view. It is a perspective view same as the above. It is a circuit block diagram same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 2 Power supply cord 3 Pull-in coaxial cable 4 Modular jack 6 Plug blade insertion port 8 Power supply part 7 Blade holder 11 Communication interface part 12 Transmission / reception part 13 Cable modem 14 LAN controller

Claims (3)

  Connect the power cord attached at the tip to the power line wired indoors by plugging it into an outlet, and connect the coaxial plug connector attached to the tip to the coaxial receptacle connector to wire indoors The retractable coaxial cable connected to the coaxial cable, the housing formed in a substantially box shape into which the power cord and the retractable coaxial cable are drawn, and the coaxial cable housed in the housing and connected to the retractable coaxial cable A communication modem that modulates and demodulates a communication signal via the communication interface, a communication interface that is housed in the housing and that interfaces between the communication modem and the communication device, and that is provided on the surface of the housing and connects the communication device and the communication interface One or more communication connectors into which communication cables are removably inserted, and housings One or a plurality of blade receptacles housed in a power supply cord and connected in parallel to the power line via a power cord, and one or a plurality of blade receptacles for inserting a plug blade of a power plug of another device to connect to the blade receptacle A wiring instrument for coaxial cable communication, wherein a plug blade insertion opening is provided on the surface of the housing.   2. The coaxial cable communication wiring device according to claim 1, further comprising one or more branching coaxial receptacle connectors provided on a surface of the housing and branch-connected to the drawing coaxial cable in the housing.   The housing is formed in a flat box shape, the communication connector is provided on a surface narrower than the other surface, and the plug blade insertion opening is provided on another surface wider than the surface. The wiring apparatus for coaxial cable communication according to claim 1 or 2.

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