JP2001035608A - Active information outlet - Google Patents

Abstract

(57) [Summary] An information outlet used for each information wiring conventionally requires an information outlet, a network concentrator, a large number of information cables and many devices, and a wiring which deteriorates aesthetic appearance. There was a problem of becoming. An information outlet that can be embedded in a wall for connecting each information terminal when transmitting and receiving information between a plurality of information terminals in a plurality of rooms. On the mounting surface of the building materials to be partitioned,
A main body that is buried with one surface exposed to the indoor side and the other surface exposed to the wiring space side; and one or more first ports 2 provided on one surface of the main body for connecting information equipment. When,
One or two second ports 17 used for sending wiring to another LAN device provided on the other surface of the main body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information outlet used for indoor information wiring such as an office or a house.

[0002]

2. Description of the Related Art Conventionally, when an information wiring for transmitting signals such as characters, voices, and images to a plurality of information communication terminal devices in an office or the like is pulled out from a wall surface, an information outlet and a hub are connected. A network concentrator (hereinafter referred to as a concentrator) provided with functions and the like is used.

[0003] This information outlet is disclosed in Japanese Patent Laid-Open No. Hei 10-20.
A device described in JP-A-8827 is known, and a concentrator described in JP-A-10-41032 is known.

FIG. 8 shows a conventional embodiment, in which 55 is a concentrator, 56 is a connection cable D, 57 is an information outlet A, and 58 is an information outlet B.

In FIG. 8, an information outlet A57 and an information outlet B58 are conventional information outlets, for example, those described in the above-mentioned Japanese Patent Application Laid-Open No. 10-208827, and a concentrator 56 is also a conventional concentrator, for example, This is described in JP-A-10-41032.

[0006]

However, in such a configuration, the information terminal A45 in the room A101 partitioned by the wall 103 and the information terminal B5 in the room B102.
0, when trying to communicate between the information terminals C51, the concentrator 55 and the connection cable D56 are required in addition to the information outlet A57 and the information outlet B58. And it is expensive.

In particular, an increase in the number of connection cables impairs aesthetics, and not only is the wiring cluttered or troublesome, but also increases the number of sources of electrical noise or the number of causes of malfunction due to noise in information terminals. Also leads to.

Further, for example, an information terminal A45 or an information terminal B
50, the information terminal C51 changes the presence / absence or location of the information terminal C51 in accordance with the use or the like, and accordingly, the connection of the connection cable A46, the connection cable B52, and the connection cable C53 changes accordingly. However, since the crossover wiring 54 and the connection cable D56 are wirings for connecting between the rooms, there is little possibility that they will be changed, and they may be fixed.

An object of the present invention is to provide an active information outlet which can connect a plurality of information terminals with orderly wiring.

[0010]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides an active information outlet having a HUB function and embedded or mounted on a wall.

The present invention comprises, for example, a first port connected to an information terminal in a room in an office or a house, and a second port connected to a feed line in a wall,
An information outlet comprising a control board for controlling the first port and the second port, and a power supply board for obtaining power required for the control board by converting a commercial AC power supply. There are a control unit, a clock unit, a reset unit, a power supply unit, and a filter unit. The power supply board has an AC supply unit, a power supply unit, and an AC / DC conversion unit. The control board and the power supply board are separate or integrated. If they are separate, the control board and the power supply board are connected via a DC power cable, and the outlet panel It can be embedded or attached to a wall using an outlet frame, a mounting frame, and a mounting auxiliary frame.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. (Embodiment 1) FIG. 1 shows an embodiment of an active information outlet of the present invention. In FIG. 1, 1 is an active information outlet of the present invention, 2 is a first port, 3 is a crossover wiring, 4 is a wall surface.

The operation of the above active information outlet will be described below together with its effects. In FIG. 1, an active information outlet 1 is an example having two first ports 2 and is buried in a wall 3 and is connected to another relay device such as an active information outlet by a crossover wiring 4.

A connection cable from the information terminal is connected to the first port 2, and the active information outlet 1
Functions as a communication relay device that enables communication between an information terminal connected to the first port 2 and an information terminal (not shown) connected to the end of the crossover wiring. 1 serves as a communication relay device when a plurality of ports 2 are provided, that is, the active information outlet 1
N can play a role generally called HUB. (Embodiment 2) FIG. 2 shows a configuration example of an active information outlet according to the present invention. In FIG.
6, a mounting auxiliary frame, 7 is a mounting frame, 8 is an outlet frame, 9 is an outlet panel, 10 is an AC connection cable, 11 is a screw, 12 is a connection portion, and 13 is a connection portion. It is a connection part.

The operation of the above active information outlet will be described below together with its effects.

The control unit 5 realizes the communication relay function as a HUB of the active information outlet 1 of the present invention described in the first embodiment, and is connected to an AC connection cable 10. .

The other components are intended to bury or attach the control section 5 to a wall surface.

Commercially available mounting frames 7, outlet frames 8, and outlet panels 9 can be used. The outlet frames 8 are fixed to the mounting frames 7 with screws 11, and the outlet panels 9 are outlet frames 8. It is fixed with a fitting structure.

The mounting auxiliary frame 6 is for fixing the control section 5 to the mounting frame 7, and the mounting frame 7 is provided with an engaged claw for fixing. Are provided with engaging claws for fixing to the mounting frame 7 and screw holes for fixing the control section 5 with screws 11.

The interlocking connection 12 and the interlocking connection 1
3 is a conceptual diagram of FIG. 3. In FIG. 3, since the engaging claw portion 12 is engaged with the engaged claw portion 13, it can be removed after it is attached. (Embodiment 3) FIG. 4 shows an example of the configuration of the control unit 5. In FIG. 4, 14 is a control board, 15 is a power board, 16 is a conductive plate, 17 is a second port, 18 is A
C supply unit, 19 is a DC supply unit, 20 is a DC supply unit, 2
1 is a DC connection cable, 22 is a control side spacer, 23 is a power supply side spacer, 24 is a control FG point, and 25 is a power supply FG.
Point 26 is an FG pattern.

Regarding the control section 5 as described above,
Hereinafter, the operation will be described together with the effect.

FIG. 4 shows an example in which the control board 14 and the power supply board 15 are separated, and the control board 14 shows an example in which the second port 17 has two ports.

In FIG. 4, the crossover wiring 3 is connected to the second port 17, the control board 14 realizes the HUB function, and the power supply board 15 supplies the DC power required for the control board 14 to A.
The power is supplied to the control board 14 by converting the C power.

Here, the electromagnetic radiation noise from the power supply board 15 is one of the noise sources that causes the control board 14 to malfunction.

As a method of reducing the influence of the electromagnetic radiation noise on the control board 14, the space between the control board 14 and the power supply board 15 is shielded so that the electromagnetic radiation from the power supply board 15 does not reach the control board 14. Means for providing an electric shield is generally used. Therefore, noise suppression was implemented by providing the conductive plate 16 as an electrostatic shield between the control board 14 and the power supply board 15.

Further, the conductive plate 16 which is an electrostatic shield
Need to be connected to the FG, the conductive plate 16 and the F
G is connected to the control FG point 24 of the control board 14 and the conductive plate 16 via the control-side spacer 22, and the power supply FG point 25 of the power supply board 15 and the conductive plate 16 are connected to the power-side spacer 23. , The control FG point 24 and the DC supply unit 20 are wiring patterns, and the power supply FG point 25 and the DC supply unit 19 are wiring patterns.
And the AC supply unit 18 and the DC supply unit 19
The DC supply unit 19 and the DC supply unit 20 are connected by a DC connection cable 21.

The purpose of the conductive plate 16 is to shield the electromagnetic radiation noise generated from the power supply board 15 from reaching the control board 14.
It is preferable that the number of openings of the conductive plate 16 be minimized because of leakage from that portion. Therefore, it is preferable that the conductive plate 16 does not have openings that are equal to or greater than the total number of the control FG points 25 and the number of the power supply FG points 26. The number of the control FG points 17 and the number of the power supply FG points 18 are based on the fact that the FG points also serve to fix the control board 5 and the power supply board 6 using the holes. It is sufficient if there is a minimum number required to fix the numbers. FIG. 4 shows two cases each. (Embodiment 4) FIG. 5 shows a configuration of a control board 14,
In FIG. 5, 27 is a DC power supply terminal, 28 is an FG connection terminal, 29 is a DC supplied unit, 30 is a control unit, 31 is a reset unit, 32 is a clock unit, and 33 is a filter unit.

The operation of the control board 14 as described above will be described below together with its effects. In FIG. 5, the control unit 30 controls the signals between the first port 2 and the second port 17 in the HUB function, the reset signal is from the reset unit 31, and the clock signal is the The necessary power supplied from the clock unit 32 is supplied from the DC power supply terminal 27 of the DC power supply unit 29.

The control unit 30 is an Ethernet 10BASE-T or an Ethernet 102.3-T of the 802.3 standard.
It is possible to process a signal corresponding to 100 BASE-T of the st Ethernet, and the flow of the signal is the first port 2
To the second port 17 and from the second port 17 to the first port 2. The control unit 30
May perform communication according to the IEEE 1394 standard.

The filter unit 33 is provided with a first port 2
And between the control unit 30 and the control unit 30, and between the control unit 30 and the second port 17, between the cable side of the first port 2 and the second port 17 and the control unit 30. It has the function of electrically insulating and removing noise.

When the cables connected to the first port 2 and the second port 17 correspond to cables with shields, they are propagated to the cables. In order to prevent noise from affecting the control unit 30, the first port 2 and the second port 1
7 is connected to the FG connection terminal 28 of the DC supply section 29 by a wiring pattern to release noise to the FG. (Embodiment 5) FIG. 6 shows a configuration of a power supply board 15,
6, 34 is an AC supply terminal, 35 is an FG terminal, 36 is a DC supply terminal, 37 is an FG terminal, and 38 is an FG terminal.
Connection wiring pattern, 39 is an AC filter section, 40 is AC
The / DC converter 41 is a DC filter.

The operation of the power supply board 15 described above will be described below together with its effects. AC supply unit 18
The AC power input from the AC supplied terminal is removed by the AC filter 39 and the AC power is supplied to the AC / DC converter 40.
After being converted into the C power supply, the noise is removed by the DC filter unit 41 and then connected to the DC supply terminal 36 of the DC supply unit 19. The FG terminal 35 and the FG terminal 37 are connected by an FG connection wiring pattern 38. (Embodiment 6) FIG. 7 shows an example of use of the active information outlet 1 of the present invention. In FIG. 7, reference numeral 42 denotes an active information outlet A, 43 denotes a second port, and 44 denotes a first port. 45, an information terminal A, 46, a connection cable A, 47, an active information outlet B, 48, a second port, 49, a first port, 50, an information terminal B, 51.
Is an information terminal C, 52 is a connection cable B, 53 is a connection cable.
Bull C, 54 are crossover wires, 101 is room A, 102 is room B, and 103 is a wall.

The operation of the active information outlet as described above will be described below together with its effects.

A room A101 and a room B102 are separated by a wall 103, and an information terminal A45 in the room A101 is provided.
Is the first port 4 of the active information outlet A42.
4 and a connection cable A46, and a room B10.
The information terminal B50 located in the second information terminal B50 is connected to a first port 49 of the active information outlet B47 and a connection cable B52, and the information terminal C51 is connected to another first port 49 of the active information outlet B47. And the second of the active information outlet A42
The port 43 is connected to a second port 48 of the active information outlet B47 by a crossover wiring 54.

The crossover wiring 54 connects the active information outlet A42 and the active information outlet B47. Once connected, there is no need to reconnect, so that there is no problem even if it is provided in the wall surface. The information terminal A45, the information terminal B50, and the information terminal C51 each have a room A10.
1. Active information outlet A4 in room B102
2. Communication is possible simply by connecting to the active information outlet B47 with the connection cable A46, connection cable B50, and connection cable C51.

In the embodiment of the present invention, the case where the control board 14 and the power supply board 15 are separated has been described. However, the control board 14 and the power supply board 15 may be integrated. . At that time, the conductive plate 16, the control side spacer 22, the power supply side spacer 23, the control FG point 24,
The power supply FG point 25 and the FG pattern 26 are unnecessary, and the DC supply section 19 and the DC supply section, and the DC connection cable connecting them are formed by wiring patterns. However, there is electromagnetic radiation noise from the power supply function unit realized by the power supply board 15 to the control function unit realized by the control board, and in order to reduce it, a DC power supply An area is provided in which no parts are provided except for the minimum required pattern such as a wiring pattern, so that the electromagnetic radiation generated from the power supply function unit does not reach the control function unit.

Further, in the embodiment of the present invention, the configuration in which the control board 14 and the power supply board 15 are separated from each other and the conductive plate 16 is provided between the control board 14 and the power supply board 15 has been described. Cable 10 and DC connection cable
The control board 14, the power supply board 15, and the conductive plate 16 can be realized by enclosing the control board 14, the power supply board 15, and the conductive plate 16 at least with the AC connection cable 10 and the first cable. The present invention can also be realized by enclosing a cable connected to the port 2 and a cable provided with an opening through which the cable connected to the second port 17 is inserted.

Further, in the embodiment of the present invention, an example in which there are two first ports 2 and two second ports 17 has been described, but the first port is one. And the second port is 1
Any one is feasible.

Further, in the embodiment of the present invention, the case where the first port 2 corresponds to the non-shielded cable is shown, but the first port 2 corresponds to the shielded cable. But it is feasible.

Further, in the embodiment of the present invention, the case where the second port 17 corresponds to the non-shielded cable has been described, but the shielded cable or the plastic is used. It can also be realized by a device corresponding to an optical fiber made of glass or glass.

[0041]

As described above, according to the present invention, a remarkable effect that an active information outlet capable of constructing a network environment resistant to noise can be provided with a small number of devices and neat wiring can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an active information outlet according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing a configuration of an active information outlet according to an embodiment of the present invention.

FIG. 3 is a conceptual diagram of a connection part of an active information outlet according to an embodiment of the present invention;

FIG. 4 is a conceptual diagram showing a configuration example of a control unit of an active information outlet according to an embodiment of the present invention;

FIG. 5 is a conceptual diagram showing a configuration example of a control board of an active information outlet according to one embodiment of the present invention;

FIG. 6 is a conceptual diagram showing a configuration example of a power supply board of an active information outlet according to one embodiment of the present invention;

FIG. 7 is a conceptual diagram showing an example of using an active information outlet according to an embodiment of the present invention.

FIG. 8 is a conceptual diagram showing a usage example of a conventional information outlet and a concentrator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Active information outlet of the present invention 2 First port 3 Transition wiring 4 Wall surface 5 Control part 6 Mounting auxiliary frame 7 Mounting frame 8 Outlet frame 9 Outlet panel 10 AC connection cable 11 Screw 12 Engagement Connection part 13 Engagement connection part 14 Control board 15 Power supply board 16 Conductive plate 17 Second port 18 AC supply part 19 DC supply part 20 DC supply part 21 DC connection cable 22 Control side space 23 Power supply side spacer 24 Control FG point 25 Power supply FG point 26 FG pattern 27 DC power supply terminal 28 FG connection terminal 29 DC supplied part 30 Control part 31 Reset part 32 Clock part 33 Filter part 34 AC supplied Terminal 35 FG terminal 36 DC supply terminal 37 FG terminal 38 FG connection wiring pattern 39 AC filter section 40 AC / DC conversion unit 41 DC filter unit 42 Active information outlet A 43 Second port 44 First port 45 Information terminal A 46 Connection cable A 47 Active information outlet B 48 Second port 49 First port 50 Information terminal B 51 Information terminal C 52 Connection cable B 53 Connection cable C 54 Transition wiring 101 Room A 102 Room B 103 Wall

 ────────────────────────────────────────────────── ─── Continued from the front page (72) Inventor Tetsuya Wada 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 5E087 MM09 MM12 PP01 PP02 PP06 PP08 QQ01 RR02

Claims (23)

[Claims] 1. An information outlet that can be embedded in an opening provided in a wall for connecting information terminals when communicating between a plurality of information terminals in a plurality of rooms. A main body that is buried by exposing one surface to the indoor side and exposing the other surface to the wiring space side on a mounting surface of the construction material that partitions the wiring space provided in the main body; One or a plurality of first ports for connecting information devices provided in the main body, and one or two second ports connected to the crossover wiring provided on the other surface of the main body. An active information outlet comprising: 2. A control board having a function of controlling communication, and a power board having a function of obtaining DC power required for the control board by converting commercial AC power, wherein the control board and the power supply are provided. The active information outlet according to claim 1, wherein the substrate is formed in a separated form or in an integrated form. 3. The active information outlet according to claim 2, wherein the control board can control communication standardized by IEEE1394. 4. The control board according to claim 1, wherein said control board and said power supply board are separated from each other, wherein said control board is designed to reduce an influence of electromagnetic radiation noise from said power supply board on said control board. 3. The active information outlet according to claim 2, wherein a conductive plate having an area equal to or larger than the area is provided between the control board and the power supply board. 5. In a case where the control board and the power supply board are formed in an integrated form, an influence of electromagnetic radiation noise from the power supply board on the control board is provided between the control board and the power supply board. 3. The active information outlet according to claim 2, wherein a ground or FG wiring pattern is provided for the purpose of reduction, and no component is mounted on the wiring pattern. 6. The control board includes: the first port;
A communication port for controlling communication between the second port, the first port and the second port, a terminal to which necessary DC power is supplied, or a wiring pattern;
A DC-supplied unit having a terminal (hereinafter referred to as DC-connected), a terminal to which a frame ground (hereinafter referred to as FG) is connected, or a wiring pattern (hereinafter referred to as a control FG-connect), and a clock signal to the communication controller. The active information outlet according to claim 2, further comprising: a clock unit for supplying the communication control unit; and a reset unit for supplying a reset signal to the communication control unit. 7. The control board, between the first port and the communication control unit, or between the communication control unit and the second port.
A filter unit embodying filter means for reducing noise generated by electromagnetic induction, capacitive coupling, or inductive coupling in a cable connected to the port side between said ports; The means separates the port side and the control side in a DC component, or
7. The active information outlet according to claim 6, wherein said means is a means for electrically attenuating the generated noise by a resistance component and a capacitor component. 8. The control board connected to the control FG connect in the DC-supplied portion by a wiring pattern.
7. A method according to claim 6, wherein a plurality of control FG points are provided, and the number of the control FG points is four or less, wherein a conductive portion is exposed around a through hole provided in the control board. Active information outlet. 9. The power supply board includes a terminal to which commercial AC power is supplied, or a wiring pattern (hereinafter referred to as AC connect).
And a terminal to which the FG is connected or an AC supply unit having a wiring pattern (hereinafter referred to as a power supply FG connect A), and electrically removes noise of an AC power supply supplied between the AC supply unit and the AC / DC conversion unit. AC / DC converter for converting AC power to DC power, and DC filter for electrically reducing noise of DC power converted between the AC / DC converter and DC supply unit And a DC supply unit having a terminal for supplying DC power or a wiring pattern (hereinafter referred to as DC connect) and a terminal to which the FG is connected or a wiring pattern (hereinafter referred to as power supply FG connect B). 3. The active information outlet of claim 2, wherein: 10. The power supply board, wherein the power supply FG connect A of the AC supply unit and the power supply FG connect B of the DC connect are connected by a wiring pattern. One or more power supply FG points connected to the FG connect A by a wiring pattern are provided, and the power supply FG points have a conductive portion exposed around a through hole provided in the power supply substrate. The active information outlet according to claim 9, characterized in that: 11. The control FG point and the power supply FG point are:
5. The active information outlet according to claim 4, wherein the active information outlet is connected by a cable (hereinafter referred to as a DC connection cable) connecting the DC supply section and the DC supply section. 12. The control FG point and the power supply FG point are:
6. The active information outlet according to claim 5, wherein said DC information supply section is connected by a pattern connecting said DC supply section and said DC supply section (hereinafter referred to as a DC connection pattern). 13. The conductive plate, wherein the control FG point on the control board, the power FG point on the power supply board, and the conductive plate are electrically connected by first connection means. The means comprises: 1-1 connection means for connecting the control board to the conductive plate; 1-2 connection means for connecting the conductive plate to the power supply board; The connecting means of (1) includes a through hole at the control FG point on the control board and a through hole of the conductive plate provided at the same position as the through hole at the control FG point. Across a spacer (hereinafter referred to as a control spacer) having a through hole into which
The first and second connecting means are a through hole at the power supply FG point and a through hole at the power supply FG point on the power supply board. And a through hole of the conductive plate provided at the same position, and a spacer having a through hole into which a screw with a tap can be screwed at both ends (hereinafter referred to as a power supply spacer).
Means for connecting by screwing a screw from one direction and the other direction, wherein the position of the through hole at the control FG point and the position of the through hole at the power supply FG point are the same position or different positions; In the case of the position, a screw that can be screwed into a through hole into which a screw with a tap at the other end can be screwed is provided at one end of the control spacer or the power supply spacer. The active information outlet according to claim 4, characterized in that: 14. The active information outlet according to claim 13, wherein the conductive plate has through holes only in the total number of the control FG points and the number of the power supply FG points or less. 15. The first port of the control board, wherein a cable to be connected corresponds to a cable to be shielded or a cable with a shield. When a cable with a shield is connected to the port, the cable with the shield is connected to the shell of the port. Wherein the contact is electrically connected to the control FG point, and is connected to the control FG point by a wiring pattern according to a form in which the shell is mounted on the control board. Item 2. Active information outlet. 16. The DC-supplied portion of the control board,
The connection between the DC supply sections of the power supply board is performed by a second connection unit, a third connection unit, a fourth connection unit, or a fifth connection unit via a DC connection cable. And the second connection means is connected to the D power cable of the DC power cable.
The coating on the C supply part side is peeled off in advance, connected to the DC supply part, a connector is provided on the DC supply part side, and a connector is also mounted on the DC supply part and connected by fitting. Wherein the third connection means comprises the D power supply cable of the DC power cable.
A connector is provided on the C supply unit side, the connector is also mounted on the DC supply unit, connected by fitting, the coating on the DC supply unit side is peeled off in advance, and the connection is performed. 4 means for connecting the D power cable
C The coating on the supply section side is peeled off in advance, connected, and
Similarly, the coating is also peeled off in advance on the C supply section side, and the DC
The fifth connection means is connected to the DC power cable.
A connector is provided on the C supply unit side, and a connector is mounted on the DC supply unit and connected by fitting. The DC supply unit side also has a connector, and the DC supply unit is also provided with a connector. The active information outlet according to claim 4, wherein the active information outlet is configured to be connected by fitting. 17. The supply of commercial AC power to the AC supply section of the power supply board is performed by connecting an AC power cable by a sixth connecting means or a seventh connecting means, and the sixth connecting means is provided. Is the A of the AC power cable.
The coating on the side of the C supply unit is peeled off in advance, and the connection to the AC supply unit is performed.
3. The active information outlet according to claim 2, wherein a connector is provided on the C supply unit side, and the connector is mounted on the AC supply unit and connected by fitting. 18. The communication control section of the control board, wherein a signal from the first port is sent to a second port, and a signal from the second port is sent to the first port. 3. The active information outlet according to claim 2, wherein the active information outlet has a hub function of relaying to a switching hub or a function of a switching hub. 19. The control board, the power board,
3. The active information outlet according to claim 2, wherein the size of the conductivity is 50 cm × 95 cm or less. 20. An outlet panel having an opening through which a plug connection portion of the first port is inserted, and a plug connection portion of the first port for fixing the outlet panel by interlocking connection. An outlet frame having an opening through which the connector frame is fixed; and a fixing frame having an opening through which a plug connection portion of the first port is inserted, which is fixed by screwing the outlet frame. A mounting auxiliary frame having an opening through which a plug connection portion of the first port is inserted so that the control board can be fixed by interlocking connection; and further, the mounting frame is fixed by screws. 3. The active information outlet according to claim 2, further comprising an outlet box having a hole for introducing a cable connected to said second port. 21. The active information outlet according to claim 20, wherein a material of said mounting auxiliary frame is made of resin and has an electrically insulating property. 22. The second port of the control board, wherein a cable to be connected corresponds to a cable to be shielded or a cable with a shield. If the cable is compatible with an optical fiber and is compatible with a shielded cable, the shielded cable is connected to the port shell. It has a contact electrically connected to the shield of the cable when connected, and is connected to the control FG point by a wiring pattern depending on the form in which the shell is mounted on the control board. 3. The active information outlet according to claim 2, wherein the information outlet is provided. 23. The control board according to claim 2, wherein communication standardized by IEEE802.3 can be controlled.
Active information outlet.