JPS6317384B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is suitable for use as a telephone for maintenance or testing. The present invention relates to a telephone in which functional parts necessary for various telephones are built into a telephone housing, and the necessary functional parts can be switched and connected by a changeover switch according to usage conditions.

[Conventional technology]

Conventionally, dedicated telephones are used depending on the purpose. For this reason, it is necessary to prepare a wide variety of telephones, which are used only in small numbers, for purposes such as maintaining telephone lines or testing equipment. In addition, in the case of subscriber transport, it is necessary to install a telephone repeater between the transport line and the telephone, and even if the number of subscriber lines is small, it is necessary to install a telephone repeater device, which is uneconomical. It was hot.

For example, as shown in FIG. 1, a four-wire transmitting line 4WS and a four-wire receiving line 4WR input and output from a modem of a subscriber carrier terminal station (not shown) are combined by a hybrid coil H to generate a two-wire signal. A telephone repeater 5 equipped with a built-in signaling device RG connected to the signal transmission line SS and signal reception line SR to perform the necessary signal conversion is installed between the general telephone 1 for the dial pulse system and the carrier line. There are things to do. Telephone 1 cannot be directly connected to the carrier line.

Power for operating the telephone is supplied to the telephone 1 via the signaling device RG. The telephone 1 has a built-in telephone circuit network 2, a handset 3, a dial 4, etc., and dial signals and transmission/reception voice signals are connected to a carrier line by the telephone repeater 5 via the telephone circuit network 2.

[Problem that the invention seeks to solve]

The purpose of the present invention is to solve the above-mentioned conventional drawbacks and
The object of the present invention is to improve economical efficiency and maintenance convenience by providing a telephone that can be used for multiple purposes.

[Means for solving problems]

The present invention provides a telephone equipped with a telephone circuit network, a handset connected to the telephone circuit network, a push-button dial, and a line connection terminal.
A multi-frequency signal generating circuit, a dial pulse generating circuit, and an operation output of the dial is applied to these two generating circuits, and the signal output of these two generating circuits is connected to the telephone circuit network so that one of them is enabled. and a first selection changeover switch that provides a four-wire transmission/reception line, a signal transmission/reception line,
and a telephone repeater including individual terminals respectively connected to the two-wire line, to which the four-wire talking line and the signal transmitting/receiving line are connected; and a telephone repeater that connects the telephone circuit network to the two-wire line or the telephone repeater an AC/DC adapter that supplies power current to the telephone repeater; a ringback tone generation circuit; and a selection connection switch that connects the output of the ringback tone generation circuit to a line. It is characterized by having the following.

[Effect]

The telephone of the present invention is equipped with various circuits such as a multi-frequency signal generation circuit, a dial pulse generation circuit, a telephone repeater circuit, an AC/DC adapter for rectifying commercial frequencies, and a ringback tone generation circuit. One telephone can be used for multiple purposes by switching connections depending on the situation.

〔Example〕

Next, the present invention will be explained in detail by calculating embodiment drawings.

This embodiment is a telephone equipped with a known telephone network 2, a handset 3 connected to this telephone network, and a push-button dial 7. The dial 7 is configured to be selectively connected to a multi-frequency signal generation circuit 8 or a dial pulse generation circuit 9 by a selection changeover switch 10, and the signal output of these two generation circuits is selected when one of them is enabled. Telephone network 2 via changeover switch 10'
connected to. The line connection terminals include individual terminals connected to the four-wire transmission/reception lines 4WS, 4WR, the signal transmission/reception lines SS, SR, and the two-wire line 2W, respectively.

The four-wire transmission/reception line and the signal transmission/reception line are connected to a telephone repeater 5, and are provided with a second selection changeover switch 11 for connecting the telephone circuit network 2 to either the two-wire line or the telephone repeater 5. . Furthermore, an AC/DC adapter 12 for supplying power current to the telephone repeater 5 is provided. moreover,
A ringback tone generation circuit 13 is provided, and a selection connection switch 14 is provided for connecting the output of the ringback tone generation circuit 13 to a line.

In the device of the present invention, each of these circuits is mounted in one telephone housing as shown by broken lines in FIG.

FIG. 3 is a block diagram of the telephone repeater 5. As shown in FIG.
The telephone repeater 5 has a four-wire line 4WS, 4
It includes a hybrid coil H that connects WR and a signal device RG that connects to signal lines SS and SR, and to this signal device RG, the output DC power supply DC POW of the AC/DC adapter 12 and the ring back tone from the switch 14 are connected. .

Such devices can be used to connect any type of line, whether it is a four-wire line, a two-wire line, or a line that requires a repeater. Regardless of whether this is the case or not, it can be handled as desired by selecting the connection terminal and switching the switch 11. Furthermore, if it is necessary to send a ring back tone for testing purposes or when using a public power line, the ring back tone can be sent to the line by operating the switch 14.

Regarding the dial signal, a multi-frequency signal generating circuit 8 and a dial pulse generating circuit 9 are provided, and one of them can be selected and used by operating switches 10 and 10'.

You can also use commercial power to power this phone.

〔Effect of the invention〕

As described above, according to the present invention, one telephone can support many types of lines and many purposes. The device of the present invention is useful for maintenance or device testing.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a connection between a telephone and a telephone repeater in a conventional subscriber carrier system. FIG. 2 is a block diagram showing one embodiment of the present invention. FIG. 3 is a configuration diagram of a telephone respirator. 1...General telephone, 2...Telephone circuit network, 3...
...Handset, 4...Dial, 5...Telephone respirator, 7...Keyboard switch, 8...Multi-frequency oscillation circuit, 9...Dial pulse generation circuit,
10, 10'...first selection switch, 11
...Second selection switch, 12...AC/DC
Adapter, 13...Ring back tone generation circuit, 14...Selection connection switch.

Claims (1)

[Claims] 1. A telephone network 2, a handset 3 connected to the telephone network, and a push-button dial 7.
and a line connection terminal, a multi-frequency signal generating circuit 8, a dial pulse generating circuit 9, and an operation output of the dial is given to these two generating circuits, and the signal output of these two generating circuits is a first selection changeover switch 10,1 which is applied to said telephone circuitry so that either one of them is enabled;
0', and the line connection terminal is a four-wire transmission/reception line 4WS, 4
a telephone repeater 5 including individual terminals connected to WR, signal transmission/reception lines SS, SR, and two-wire line 2W, and to which the four-wire transmission/reception line and signal transmission/reception line are connected; and the telephone circuit network. a second selection changeover switch 11 for connecting the telephone to the two-wire line or the telephone repeater; and supplying power supply current to the telephone repeater.
A multipurpose telephone characterized by comprising an AC/DC adapter 12, a ringback tone generation circuit 13, and a selection connection switch 14 for connecting the output of the ringback tone generation circuit to a line.