JPH06350736A - Connection switching system for telephone set and data transmitter to telephone line - Google Patents

Abstract

PURPOSE:To limit the set of a modular jack/plug to be installed at a data transmitter to one set and to prevent a telephone set and a telephone line from being connected during the data transmission of the data transmitter in the connection switching system for the telephone set and the data transmitter to the telephone line. CONSTITUTION:A pull-in line L1 of the telephone line is serially connected with a switching circuit and a telephone set 5 inside a data transmitter 10. A modular jack 1a connected to the line L1 is connected to a branch adapter 6. The branch adapter 6 is connected to a switching circuit C of the data transmitter 10 and connected to the telephone set 5 on the other hand. A connecting means S and the switching circuit C are connected by one modular jack 2a installed at the device 10 and a modular plug 2b of the connecting means S.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection switching system for a telephone and a data transmission device (computer, personal computer, etc.) for a telephone line.

[0002]

2. Description of the Related Art Telephone lines are usually used for data communication. In this case, it is necessary to switch the connection between the telephone and the transmitting device for performing data communication. A typical conventional system for this switching is shown in FIGS.

The connection switching system of FIG. 1 is provided with a switching circuit C in the data transmission device, which switches the device connection line L4 and the telephone connection line L5 with respect to the line connection line L3 by the changeover switch 4. In addition, the data transmission device 10 is characterized by having two sets of modular jack plugs 2a, 2b; 3a, 3b. The telephone line lead-in line L1 is connected to one of the modular jack plugs 2a, 2b through the modular jack plugs 1a, 1b and the line L2, and the modular jack plugs 2a, 2b are connected to the inside of the device 10. It is connected to the line connection line L3. Also, the telephone 5 has another modular jack plug via line L6.
It is connected to 3a and 3b. Therefore, when the changeover switch 4 is in the state shown in the drawing, the telephone 5 is connected to the telephone line, while when the switch 4 is changed to the normally open contact side, the connection between the telephone 5 and the telephone line is cut off, and the data is The line L4 of the transmitter 10 is connected to the telephone line.

In the above-mentioned conventional example, there is no particular problem in operation, but two sets of modular jacks and plugs are used for the device 10.
There is a configuration problem that it must be provided in the. If the device 10 is small, it is preferred that there be one set of modular jack plugs to be installed for reasons of mounting space.

On the other hand, in the conventional system shown in FIG. 2, the telephone 5 and the data transmitter 10 are connected in parallel to the lead-in line L1 of the telephone line by the branch adapter 6. That is, the service line L1 is connected to the connection line L15 in the branch adapter 6, and one terminal of this connection line L15 is connected to the telephone 5 through the modular plug 7 and the connection line L11, while the other of the connection line L15 is connected. The terminal is connected to the modular jack 2a via the modular plug 8, the connection line L7 and the modular plug 2b. The modular jack 2a is connected to a circuit in the data transmission device 10.

[0006] According to this connection switching system, there is an advantage that only one set of modular jack plugs should be installed in the data transmission device 10, but on the other hand,
Since the data transmission device 10 and the telephone 5 are connected in parallel to the service line L1, if the telephone 5 is used while data transmission work is being performed from the data transmission device 10,
The transmission sound from the telephone adversely affects the transmission data from the data transmission device 10, causing a problem that the data changes.

[0007]

SUMMARY OF THE INVENTION Therefore, a technical problem to be solved by the present invention is that in a connection switching system between a telephone and a data transmission device for a telephone line, a set of modular jack plugs to be installed in the data transmission device is One is sufficient, and the connection between the telephone and the telephone line is automatically disconnected during the data transmission of the data transmission device.

[0008]

In order to solve the above problems, the present invention provides a connection switching system having the following configuration.

This system is for selectively switching the connection between a telephone and a data transmission device with respect to a pair of incoming lines of a telephone line. The system includes a first modular jack having a pair of first terminals of a pair of telephone lines, a jack connecting portion connected to the first modular jack, and two plug connecting portions, and , The jack connecting portion is provided with a pair of second terminals connected to the pair of first terminals of the first modular jack, and the first plug connecting portion is provided with a pair of third terminals,
The second plug connecting portion includes two pairs of fourth and fifth terminals,
Further, the second terminal is connected to the fourth terminal via the first line connection line, and the third terminal is connected to the fifth terminal via the connection line for the first telephone, and a branch adapter A first terminal having a pair of sixth connecting terminals that connect to the first plug connecting portion and connect to the third terminal while connecting
A switching circuit provided in the modular plug and the data transmission device, the switching circuit selectively switching connection between the device connection line and the pair of second telephone connection lines to the pair of second line connection lines. Circuit,
A second modular jack provided in the data transmission device and having a pair of seventh terminals of the second line connection line and a pair of eighth terminals of the second telephone connection line, and a second plug of the branch adapter A connection means comprising a second modular plug connected to the connection portion, a third modular plug connected to the second modular jack, and two pairs of connection lines connecting the both plugs, the first connecting means comprising: The connecting line connects the fifth terminal of the branch adapter and the eighth terminal of the second modular jack, while the second pair of connecting lines connects the fourth terminal of the branch adapter and the seventh terminal of the second modular jack. Connection means configured as described above,
It is characterized by having.

In the above structure, when the telephone is used, the lead-in line of the telephone line is switched to the first modular jack, the line connecting line in the branch adapter, the second pair of connecting means, and the telephone side. The circuit, the first pair of connecting lines of the connecting means, and the telephone connecting line in the branch adapter are sequentially connected to the telephone. On the other hand, when the data transmission device is used, the telephone line lead-in line is switched to the first modular jack, the line connection line in the branch adapter, the second pair of connection lines of the connection means, and the data transmission device side as described above. It connects to the device connection line of the data transmission device via the switching circuit provided. In this case, the lead-in line, the switching circuit, and the telephone are in a series connection relationship with each other,
Moreover, in the switching circuit, since the connection between the lead-in line and the telephone is cut off, even if the telephone is picked up while the data is being transmitted from the data transmitter, nothing is transmitted to the data. There is no adverse effect. In addition, the connecting means is the second and third modular jacks and two
Since it is composed of a pair of connecting lines, it is sufficient to install a set of modular jack plugs on the data transmission device.

In this way, the above-mentioned object of the present invention is achieved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIG.

The system shown in FIG. 3 includes a telephone 5 and a data transmission device for a pair of incoming lines L1 of a telephone line.
It is for selectively switching 10 connections.

L1 is a pair of incoming lines of the telephone line. The pair of lead-in lines L1 are connected to the first modular jack 1a. The first modular jack 1a is installed on the wall surface 9 of the house. 1st modular jack 1a
Is provided with a pair of first terminals T1 and T2 of the lead-in line L1.

A branch adapter 6 is connected to the first modular jack 1a. This branch adapter 6 is the first
Jack connection part 6a connected to the modular jack 1a,
It is provided with two plug connection portions 6b and 6c. Further, the jack connecting portion 6a is provided with a pair of second terminals T3, T4 connected to the pair of first terminals T1, T2 of the first modular jack 1a. The first plug connecting portion 6b is provided with a pair of third terminals T5 and T6, and the second plug connecting portion 6c is provided with two pairs of fourth and fifth terminals.
It has T7, T8; T9, T10. In addition, the second terminals T3, T
4 is connected to the fourth terminals T7 and T8 via the first line connection line L12, and the third terminals T5 and T6 are connected to the fifth terminals T9 and T10 via the first telephone connection line L13.

The first connecting portion 6b of the branch adapter 6 has a first
The modular plug 7 is connected. The first modular plug 7 has a pair of sixth connection terminals T11, T12 which are connected to the telephone 5 via a connection line L11 and are connected to the third terminals T5, T6.

The data transmission device 10 is provided with a switching circuit C for switching the connection between the data device side and the telephone side with respect to the telephone line. This switching circuit C is connected to the pair of second line connection lines L14 to the device connection line L14.
4 and a pair of second telephone connection lines L10 are selectively switched by the changeover switch 4.

The data transmission device 10 is provided with one second modular jack 2a. The second modular jack 2a has a pair of seventh terminals T1 of the second line connection line L14.
3, T14 and a pair of eighth terminals of the second telephone connection line L10
It has T15 and T16.

The second connecting portion 6c of the branch adapter 6 and the second module jack 2a are connected by a connecting means S.
The connecting means S includes a second modular plug 8 connected to the second plug connecting portion 6c of the branch adapter 6 and a third modular plug 2b connected to the second modular jack 2a.
It is composed of two pairs of connection lines L8 and L9 that connect between both plugs 8 and 2b. The first pair of connecting lines L8 connects the fifth terminals T9, T10 of the branch adapter 6 and the eighth terminals T15, T16 of the second module jack 2a, while the second pair of connecting lines L9 connects the branch adapter 6's first terminal T9, T10. The four terminals T7 and T8 are connected to the seventh terminals T13 and T14 of the second modular jack 2a. That is, the third modular plug 2b includes ninth terminals T17, T18 connected to the seventh terminals T13, T14 and tenth terminals T19, T20 connected to the eighth terminals T15, 16. The second modular plug 8 has an eleventh terminal connected to the fifth terminals T9 and T10.
T21, T22 and 12th terminal T23, T connected to 4th terminal T7, T8
Equipped with 24.

In the above structure, when the telephone is used, the telephone line lead-in line L1 is the first modular jack 1a, the line connecting line L12 in the branch adapter 6, the second pair of connecting lines S9 of the connecting means S, the telephone side. Switching circuit, the first pair of connection lines L8 of the connection means S, the telephone connection line L1 in the branch adapter 6
3. Connect to the telephone 5 through the connection line L11 in sequence.

On the other hand, when the data transmitter 10 is used, the telephone line lead-in line L1 is the first modular jack 1a and the line connection line in the branch adapter 6 as described above.
L12, the second pair of connecting lines L9 of the connecting means S, and the device 1
It is connected to the device connection line L4 of the data transmission device via the switching circuit C switched to the 0 side. In this case, the lead-in line L1, the switching circuit, and the telephone 5 are in a series connection relationship with each other, and in the switching circuit,
Since the connection between the lead-in line L1 and the telephone 5 is disconnected, even if the telephone 5 is picked up while data is being transmitted from the data transmission device 10,
There is no adverse effect on the data transmission. Also, the connecting means S
Is the second and third modular plugs and two pairs of connecting lines
Since it is composed of L8 and L9, it is sufficient to install one set of modular jack plugs 2a and 2b in the data transmission device.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a connection switching system of Conventional Example 1.

FIG. 2 is a circuit diagram of a connection switching system of Conventional Example 2.

FIG. 3 is a circuit diagram of a connection switching system according to an embodiment of the present invention.

[Explanation of symbols]

1a Modular jack 1b Modular plug 2a Modular jack 2b Modular plug 3a Modular jack 3b Modular plug 4 Changeover switch 5 Telephone 6 Branch adapter 6a Jack connection 6b, 6c Plug connection 7-8 Modular plug 9 Wall 10 Data transmitter C switching circuit S Connection means L1 Telephone line pull-in line L2 line L3 line connection line L4 Device connection line L5 Telephone connection line L6 Line L7 Connection line L8 Connection line L9 Connection line L10 Telephone connection line L11 Connection line L12 Line connection line L13 Telephone use connection line L14 line connection line L15 connecting line T ₁ ~T ₂₃
Terminal

Claims (1)

[Claims] 1. A pair of telephone line pull-in lines (L1)
In a connection switching system for selectively switching the connection between a telephone (5) and a data transmission device (10) for a telephone, a pair of first terminals (T1, T2) of a pair of incoming lines (L1) of a telephone line are provided. 1st modular jack (1a)
And a jack connecting portion (6a) connected to the first modular jack (1a) and two plug connecting portions (6b, 6c), and the jack connecting portion (6a) is a pair of first modular jacks. A pair of second terminals (T3, T4) connected to the first terminals (T1, T2) of the first, and a pair of third terminals (T5, T6) in the first plug connecting portion (6b), The plug connection part (6c) is provided with two pairs of fourth and fifth terminals (T7, T8; T9, T10), and the second terminal (T3, T4) is connected through the first line connection line (L12). Connected to the 4th terminal (T7, T8), and 3rd terminal (T5, T6)
Is the 5th terminal (T
Branch adapter (6) configured to connect to 9, T10) and telephone (5) while first plug connection (6b)
First modular plug (7) having a pair of sixth connection terminals (T11, T12) connected to the third terminal (T5, T6) and switching provided in the data transmission device (10) Circuit (C)
And for the pair of second line connection lines (L14),
Device connection line (L4) and a pair of second phone connection lines
A switching circuit (C) adapted to selectively switch the connection of (L10) and a pair of seventh terminals (T13, T14) of the second line connection line (L14) provided in the data transmission device (10). ), And a second modular jack (2a) having a pair of eighth terminals (T15, T16) of the second telephone connection line (L10), and a second plug connection portion (6c) of the branch adapter (6). A second modular plug (8) connected to the second modular jack (2a), a third modular plug (2b) connected to the second modular jack (2a), and two pairs of connecting lines (L8, 2b) connecting between the plugs (8, 2b). L
9) is a connecting means (S), and the first pair of connecting lines (L8) is the fifth terminal (T9, T9,
T10) and the 8th terminal of the 2nd modular jack (2a) (T15,
The second pair of connection lines (L9) are connected to the fourth terminal (T7, T8) of the branch adapter (6) and the seventh terminal (T13, T14) of the second modular jack (2a) while connecting to T16). And a connection means (S) configured to connect the connection switching system.