JP2000253102A - Communication plug socket and customer station wiring for information communication - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain bus connection of an ISDN terminal by a communication plug socket arranged for an LAN terminal with respect to a communication plug socket formed on the wall face of a room or the like. SOLUTION: This communication plug socket is provided with a larger number of connection terminals than the number of terminals required by an ISDN terminal and the number of terminals required by an LAN terminal, and the terminals to be used by either bus connected terminals or star connected terminals are short-circuited. A cable 18, installed between the setting place of an information distribution panel and each communication plug socket 21, is provided with a number of core wires which is two times as large as the number of wires required by the LAN terminal and the ISDN terminal, and the core wires of each cable are divided into two groups, and the corresponding core wires of each group are connected with substantially the same terminals of the communication plug socket 21. The information distribution panel is provided with a connecting unit so that the cables can be replaced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector (communication outlet) provided on a wall of an office or a house for connecting signal lines of various information communication terminals.

[0002]

2. Description of the Related Art Facsimile, personal computer communication, ISD
Due to the rapid development and spread of information and communication technologies such as the Internet and the Internet, it is becoming natural for even small offices to connect a plurality of terminals or a LAN to one ISDN line. Movement is spreading to ordinary households. Widely used information terminals include analog terminals, ISDN terminals, and LAN terminals, and 10BASE-T is the most common communication protocol for LAN terminals.

[0003] These three types of information communication terminals differ in the connection form of their signal cables. FIG. 7 is a diagram showing an example of a case where these terminals are connected to an ISDN line. The security device 3 is connected to the connection port of the ISDN line 4.
, A DSU built-in TA (terminal adapter) 10 is connected. The TA has a plurality of analog ports 13 and digital ports 14. When a LAN is connected, the hub 12 is connected to one of the digital ports of the TA (a TA with a built-in hub is also provided). The hub 12 has a plurality of LAN ports 15.

An analog terminal 8 such as a normal telephone or a G3 facsimile is connected to a TA analog port 13 by a two-core cable 8a. The connector used for connection is RJ-
11 is a jack and plug with 6 terminals. IS
ISDN terminal 7 such as DN telephone or G4 facsimile
Is the digital port 1 of the TA using the 8-core cable 7a.
4 is connected to the bus. The connector used for connection is RJ-
There are 8 terminal jacks and plugs called 45. A LAN terminal 6 such as a personal computer is star-connected to a LAN port 15 of a hub using an 8-core cable 6a. Although the cable and the connector are the same as those for connecting the ISDN terminal, they cannot be shared because the combination of the terminals used is different.

[0005] When these terminals are arranged close to the TA, the terminals may be directly connected. However, when the terminals are arranged in a plurality of rooms of a building, the TA or the TA may be placed in those rooms. It is necessary to provide a connection port connected to the hub in advance.

That is, similar to the indoor wiring of a commercial power supply, a signal outlet is branched from a TA or hub serving as an information distribution board, and a communication outlet (RJ-11 or so-called modular jack, which is usually called a modular jack) serves as a connection port of a terminal. RJ-45 jack) is placed in advance on a wall surface of a room or a desk on which a terminal is installed. The 8-core or 2-core signal cable that connects the information distribution board and the communication outlets in each room should be pre-wired (preceding wiring) inside the wall or under the floor when building is newly constructed or renovated for safety and beauty. It is preferred in that respect.

[0007]

It is desirable that the preceding wiring of the communication cable be provided extra in anticipation of future expansion of terminals. However, as described above, the connection form of the cables and connectors is different for each type of terminal, and therefore, the communication cable pre-wired cannot be shared, so the communication outlets for each terminal must be arranged with a margin. Otherwise, a large number of communication outlets and cables are required, and the number of communication outlets that are not used due to uneven distribution of the installed terminals in each room naturally increases, resulting in a large economic loss. Especially ISDN terminals and L
An 8-core cable or RJ-45 jack for connecting an AN terminal is more expensive than a 4-core cable or RJ-11 jack.

[0008] Therefore, the present invention provides an ISDN terminal and a LAN.
It is an object of the present invention to provide a technical means capable of sharing the preceding wiring with the terminal and also capable of performing the preceding wiring with a four-core cable, and further providing a plurality of communication outlets arranged as connection ports of the LAN terminal. It is an object of the present invention to provide a technical means for enabling the ISDN terminal to be used as a communication outlet for bus connection.

[0009]

SUMMARY OF THE INVENTION A communication outlet according to the present invention has a number of terminals required by an ISDN terminal connected to the information distribution board 1 by a bus and an L port connected to the information distribution board 1 by a star.
More connection terminals T1 than the number of terminals required by the AN terminal
To T8, a terminal T used by either one of the terminal connected by the bus and the terminal connected by the star and not used by the other.
1T4 and T2T5 are characterized by being short-circuited to each other.

[0010] A form suitable for a terminal generally used at present has eight terminals, a first terminal T1 and a fourth terminal T1.
4 is short-circuited, and the second terminal T2 and the fifth terminal T5 are short-circuited (claim 2).

Further, the information communication home wiring according to the present invention is an information communication home wiring for connecting one information distribution board 1 and communication outlets 21 arranged at a plurality of terminal connection points, respectively. The communication outlet according to claim 1, wherein each cable (18) laid between the installation location of the information distribution board (1) and each communication outlet (21) is L.
The number of cores required by the AN terminal and the ISDN terminal is twice or more the number of cores required, and the number of cores of each cable is divided into two groups, and the corresponding cores of each group are substantially the same as the communication outlet 21. The terminals (the mutually short-circuited terminals are substantially identical terminals) are connected to the information distribution board side end of each cable. It is characterized by being connected to terminals that are not short-circuited.

According to a fourth aspect of the present invention, there is provided an information communication home wiring for connecting one information distribution board 1 and communication outlets 21 arranged at a plurality of terminal connection points. 2, the cable 18 laid between the information distribution board 1 and each communication outlet 21 is an eight-core cable, and the eight core wires of the cable are divided into two groups of four. The four core wires of each group correspond to the first terminal or the fourth terminal, the second terminal or the fifth terminal, the third terminal, and the sixth terminal of the communication outlet 21.
The terminal is connected to the information distribution board side end of each core wire.
One of the four-terminal connectors or one of the eight-terminal connectors is connected to terminals that are not short-circuited to each other.

[0013]

The connection of an ISDN terminal in Japan uses an eight-core cable and an eight-terminal connector, but actually uses only four cores and four terminals. This is because only the international standard using eight cores and eight terminals and the hardware are shared. In a communication outlet and a home wiring for information communication in Japan, communication is performed using only four terminals, namely, third, fourth, fifth and sixth terminals of an eight-terminal connector. In the 10BASE-T LAN connection, an eight-core cable and an eight-terminal connector are used, but this connection method also uses only four cores and four terminals. Specifically, communication is performed using only the first, second, third, and sixth terminals of an eight-terminal connector (RJ-45 jack and plug).

The present invention focuses on the above-mentioned reality, and makes it possible to share the preceding wiring between the ISDN terminal connected to the information distribution board by bus and the LAN terminal connected by star.

Preceding wiring cable connected to the communication outlet of the present invention and the base end of the cable (information distribution board side)
Can be selected from various combinations in consideration of the expected usage form of the terminal and the advance wiring cost. Taking the case of the 8-terminal outlet described in claim 2 as an example, a mode in which a 4-core cable and a 4-terminal connector are combined, a mode in which a 4-core cable and an 8-terminal connector are combined, a mode in which an 8-core cable and an 8-terminal connector are combined, and An embodiment in which a core cable and two four-terminal connectors are combined is possible.

In the first embodiment, the leading wiring can be made at the lowest cost, but a dedicated patch cord for connecting the base connector and the TA or hub to the information distribution board is required. Second
Can connect the proximal connector directly to either the TA or the hub, but when connecting to the other, use a dedicated batch cord for switching the connection terminal, or An 8-terminal connector in which terminals are short-circuited in the same manner as a communication outlet is used.
In the third mode, the proximal connector can be directly connected to either the TA or the hub.

When the ISDN terminals connected to the communication outlets provided in different rooms are connected to each other by a bus, a third or fourth mode is used, and a connection unit is provided on the information distribution board side. The connection unit 5 provided on the information distribution board is a TA10
At least one TA-side connector 16 connected to the
A plurality of cable-side connectors 17 respectively connected to the plurality of cables are provided. The terminal group of each cable-side connector is divided into two groups, and one terminal group of one cable-side connector and one terminal group of the TA-side connector are provided. Connect the terminal group 1
First connecting means 25 and a plurality of second connecting means 26 for connecting one terminal group of the two cable-side connectors to each other, wherein the first connecting means is used by a LAN terminal, and
A structure is provided with short-circuit means 19 for short-circuiting a terminal not used by the SDN terminal and a terminal used by the ISDN terminal and not used by the LAN terminal in a one-to-one relationship.

A practical structure is that both the TA connector 16 and the cable connector 17 are 8-terminal connectors,
ISD out of 8 terminals of TA connector 16 by short-circuit means
A first terminal and a second terminal which are dedicated terminals for the N terminal and the LAN terminal.
The terminal is short-circuited to the fourth terminal and the fifth terminal. And TA
The third terminal and the sixth terminal, which are the common terminals of the side connector, and one of the core wires obtained by dividing two of the four terminals short-circuited into the common terminal into two groups of the cable 18 are connected. It is a structure to connect to the terminal which is connected.

A further preferred structure of the connection unit is TA
At least one 8-terminal jack 16 as side connector
And a plurality of pairs of four-terminal jacks 17 as cable-side connectors. One four-terminal jack 17a is connected to the eight-terminal jack 16 by the first connection means, and the four-terminal jack forms a pair with the four-terminal jack. One of the other four-terminal jacks and one of the other paired four-terminal jacks are connected to each other by the second connection means, and a terminating resistor is connected to the remaining one of the four-terminal jacks. Of the eight terminals of the eight-terminal jack 16, terminals T1 and T3 and T2 and T5, which are dedicated terminals for the ISDN terminal and the LAN terminal, are short-circuited to each other, and the common terminal and the dedicated terminals shorted to each other (four in total) ) Is the one four-terminal jack 17a
Connected to.

If the connection unit having the above structure is arranged on the information distribution board side, the end of the cable connected to the communication outlet of the present invention on the distribution board side can be replaced with the connector of the connection unit 5 and the connection unit can be connected to the communication unit. TA side connector is TA
By simply changing the connection to the LAN port or the ISDN port, the desired communication outlet can be easily switched between the LAN terminal and the ISDN terminal. Conventionally, these terminals are connected by an eight-core cable. Therefore, an eight-core cable is also used for the preceding wiring, and the communication outlet of the cable is changed to the communication outlet of the present invention. By providing the connection unit, it is possible to provide a home wiring that can be exchanged between the ISDN and the LAN.

As shown in FIG. 6, when a four-terminal plug 23a and a four-terminal jack 23b are provided at the distribution board side end of each cable, the cable side connector of the connection unit is connected to the TA side connector 16. It is possible to use only one four-terminal connector in which the one connected four-terminal connector and the terminating resistor are connected. Further, a connection unit having a configuration in which connectors connected to the distribution board side end of each cable are fixed on a panel of the connection unit, and these connectors and TA ports are connected by a patch cord is also possible. In this case, short-circuiting between the dedicated terminals of the LAN terminal and the ISDN terminal is performed by a patch cord connecting the cable-side connector of the connection unit and the TA.

[0022]

Embodiments of the present invention will be described below with reference to embodiments shown in the drawings. The communication outlet 21 of the embodiment shown in FIG. 2 is an RJ-45 jack, and a first terminal T1 and a fourth terminal T among eight terminals T1 to T8.
4. The second terminal T2 and the fifth terminal T5 are short-circuited in the communication outlet. The communication outlet 21 is connected to the information distribution board by a four-core preceding wiring cable 22. The four core wires of the four-core cable are connected to the third to sixth
RJ-4 at the base of the cable
The five plugs 23 are mounted with the third to sixth terminals connected to the respective core wires of the four-core cable 22.

The LAN terminal 6 connected to the communication outlet uses first, second, third and sixth terminals. Also I
The SDN terminal 7 uses the third to sixth terminals. In both terminals, the third terminal and the sixth terminal are common terminals, and the first, second and fourth fifth terminals are dedicated terminals.

When the ISDN terminal 7 is connected to the communication outlet 21 (FIG. 2), the plug 23 at the base end of the preceding wiring is connected to the TA.
10 digital ports 14. On the other hand, when the LAN terminal 6 is connected to the communication outlet 21 (FIG. 1),
Plug 23 at the base end of preceding wiring and LAN port 15 at hub
And are connected using a dedicated patch cord 24. The patch cord 24 has an RJ-45 plug on the hub side and an RJ-45 jack on the cable side. The plug and the jack are the first terminal of the plug and the fourth terminal of the jack, and the second terminal of the plug and the fifth terminal of the jack. The terminals, the third terminals of the plug and the jack, and the sixth terminals of the plug and the jack are connected to each other by a four-core cable 24a. This patch cord 2
4, the first to third and sixth terminals of the LAN port are connected to the first to third and sixth terminals of the communication outlet 21. Communication outlet 4
Although the same signal as the signal flowing to the first terminal and the second terminal flows to the terminal and the fifth terminal, no problem occurs because the LAN terminal 6 does not use these terminals at all.

A more practical mode of the present invention is a mode in which ISDN terminals connected to communication outlets arranged at a plurality of locations can be connected to each other by a bus. 3 to 5 show an embodiment of the present invention.
The connection terminals are wired to the information distribution board side by an eight-core cable 18. The eight core wires of the eight-core cable are divided into four wires, each of which is a common terminal T3T6 of the communication outlet 21.
And one of the dedicated terminals short-circuited to each other, T1T2 or T4T5. As shown in FIG. 3, in a normal communication outlet, two connection terminals 29 are provided for each of the eight terminals of the RJ-45 jack, and the connection terminals forming a pair are electrically short-circuited. Therefore, the four core wires divided into two groups may be connected to each of the paired connection terminals connected to the same terminal. In the example shown in the figure, the third to sixth terminals T3 to T3 of the communication outlet are used.
6, two core wires of an eight-core cable 18 are connected to each other.

At the end of the 8-core cable 18 on the distribution board side, FIG.
Two five-terminal plugs 23 as shown in FIGS. Each four-terminal plug 23 is connected to each group of core wires divided into two groups of cables. That is, each of the two four-terminal plugs is connected to the same terminal of the communication outlet 21.

The information distribution board is provided with a connection unit 5 as shown in FIGS. Connection unit 5 illustrated in the figure
Has two TA-side connectors 16 and five sets of cable-side connectors 17. The TA connector 16 is RJ-
There are 45 jacks, and the cable-side connector 17 is formed by a four-terminal jack 17a which is a set of two. TA
Side connector 16 and TA LAN port 15 or IS
The DN port 14 is connected with a conventional short 8-core cable having RJ-45 plugs at both ends. This connection cable does not have a short-circuit structure.

The TA-side connector 16 and the cable-side connector 17 are fixed to a printed wiring board provided on the connection unit 5, and the TA-side connector 16 and one of the four-terminal jacks are connected to the printed wiring board. The first connection pattern 25 to be connected to one of the adjacent cable-side connectors.
A second connection pattern 26 for connecting the terminal jacks to each other;
A terminating resistor 27 connected to one of the four-terminal jacks is provided. In the wiring example shown in FIG. 4, three sets of cable side connectors are connected to one TA side connector,
The other two sets are connected to the other TA connector. The first connection pattern 25 is the first connection pattern of the TA-side connector 16.
Short-circuit pattern 19a connecting terminal T1 and fourth terminal T4
And a short-circuit pattern 19 connecting the second terminal and the fifth terminal
b.

The connection unit having the above structure has two
If two ISDN ports 14 and LAN ports 15 are provided, any two communication outlets can be used for LAN connection, and five communication outlets can be used for IS connection.
It can be for DN connection. The cable to be connected to the LAN terminal is connected to the 4
One of the terminal plugs 23 is connected to the four-terminal jack 17a connected to the first connection pattern 25, and the corresponding TA-side connector 16 is connected to the LAN port 15 of the TA. A plurality of (one to three in the case of the connection in FIG. 4) communication outlets to be connected to the bus are connected to the four terminal plugs 23 of the cables by connecting the four terminal plugs 23 to the first connection pattern 25. , And the four terminal plugs of the last cable are connected to the four terminal jack 17b to which the terminating resistor is connected.
To use only one communication outlet for bus connection,
One of the four terminal plugs on the distribution board side of the cable is connected to the four terminal jack 17a connected to the first connection pattern,
4-terminal jack 17b with termination resistor connected to the other end
Will be connected. The TA connector 16 on the side to which the bus connection cable is connected is the ISDN port 1 of the TA.
Connect to 4.

As shown in FIG. 6, a four-terminal plug 23a and a four-terminal jack 23b can be connected to the end of the eight-core cable 18 on the distribution board side. In the example shown in FIG. 6, an RJ-45 plug 16 having eight terminals is connected to the TA side,
Using a first patch cord 25 having a four-terminal jack 17 connected to the cable side, the four-terminal plug 23a of the cable and the T
A is connected to LAN port or ISDN port. The first patch cord 25 has a structure in which, of the terminals of the TA-side RJ-45 plug, the first and second terminals are short-circuited to the fourth and fifth terminals.

ISD connected to a plurality of communication outlets 21
When connecting the N terminals to each other by bus, connect one 4-terminal plug of the cables connected to the communication outlets to the 4-terminal jack of the first patch cord, and connect the 4-terminal jack of the remaining cable to the 4-terminal plug. And a four-terminal plug 17b to which a terminating resistor is connected is connected to the last remaining four-terminal jack. The communication outlet for connecting the LAN terminal is connected to the TA LAN through the first patch cord 25.
Connect to port. When a plurality of ISDN terminals are connected to one communication outlet by bus, the communication outlet is connected to the ISDN port of the TA with the first patch cord 25.

The number of connection units in the above embodiment is five (5
2) (2 sets) and 3 (3
), One TA-side connector is provided for each of them, and the number of TA-side connectors and cable-side connectors and their Connection type can be selected. For example, if there are five LAN ports and one ISDN port on the TA side, four sets connected in a one-to-one relationship with five cable side connectors connected to one TA side connector as a connection unit By using a connection unit having a TA-side connector and a cable-side connector of
Any connection form can be realized, including using all communication outlets for LAN connection and all for ISDN connection.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a first embodiment.

FIG. 2 is a diagram schematically showing a second embodiment.

FIG. 3 is a schematic diagram showing a cable connection of a communication outlet according to a third embodiment.

FIG. 4 is a schematic view showing a connection pattern of a connection unit of a third embodiment, and connection of a communication outlet and a TA.

FIG. 5 is a perspective view of a connection unit according to a third embodiment.

FIG. 6 is a schematic view showing another embodiment of the connection unit.

FIG. 7 is an explanatory diagram showing a connection form of an information communication terminal.

[Explanation of symbols]

 1 Information distribution board 18 Cable 21 Communication outlet T1 to T8 terminals

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K027 AA10 BB15 JJ03 KK02 KK06 KK07 5K033 AA09 DA13 DA15 DB01 DB17 EC01 EC02 5K073 AA06 GG02 5K101 LL01 LL03 LL05 MM06

Claims (4)

[Claims] An ISD which is bus-connected to an information distribution board (1)
A terminal connected to the bus, having a greater number of connection terminals (T1) to (T8) than the number of terminals required by the N terminals and the number of terminals required by the LAN terminals star-connected to the information distribution board (1). A communication outlet, characterized in that terminals (T1T4, T2T5) used by either one of the terminals connected to the star and terminals not used by the other are short-circuited. 2. A terminal comprising eight terminals, a first terminal (T1) and a fourth terminal (T1).
The communication outlet according to claim 1, wherein the terminal (T4) is short-circuited, and the second terminal (T2) and the fifth terminal (T5) are short-circuited. 3. In an information communication home wiring connecting one information distribution board (1) and communication outlets (21) respectively arranged at a plurality of terminal connection points, each communication outlet (21) is provided.
Is a communication outlet according to claim 1, and an information distribution board.
Each cable (18) laid between the installation point of (1) and each communication outlet (21) has twice or more the number of core wires required by the LAN terminal and the ISDN terminal. The above number of core wires are divided into two groups, and the corresponding core wires of each group are connected to substantially the same terminal (the terminals short-circuited to each other are substantially the same terminal) of the communication outlet (21), Characterized in that at the information distribution board side end of each cable, the core wires divided into the above two groups are respectively connected to terminals of the base side connector which are not short-circuited with each other, characterized in that: . 4. The communication outlet according to claim 2, wherein the communication outlet is provided in an information communication home wiring line connecting one information distribution board 1 and communication outlets disposed at a plurality of terminal connection points. The cable (18) laid between the information distribution board (1) and each communication outlet (21) is an eight-core cable, and the eight core wires of the cable are divided into two groups of four. The four core wires of each group are connected to the first terminal or the fourth terminal, the second terminal or the fifth terminal of the communication outlet (21).
The terminal, the third terminal, and the sixth terminal are connected to each other, and the information distribution board side end of each core wire is connected to two non-short-circuited terminals of two four-terminal connectors or one eight-terminal connector. A home wiring for information communication.