JPH07162921A - System for automatically allocating terminal number of terminal equipment - Google Patents

Abstract

PURPOSE:To provide the system for automatically allocating terminal number to terminal equipment so as to extremely easily set a terminal number. CONSTITUTION:A main unit 1 and plural terminal equipments 2(1), 2(2) ...,2(x),...,2(n) are respectively star-connected through analog speaking lines A(1), A(2),...,A(x),...,A(n) and connected through a data bus B, the preparation of terminal number reception processing is reported through the analog speaking lines to the terminal equipments and after the preparation is completed, the terminal number is set by transmitting a terminal number signal from the main unit through the analog lines or the data bus. Otherwise, the terminal number is set by periodically transmitting the terminal number signal from the main unit through the analog speaking lines or the data bus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for automatically assigning terminal numbers to terminal devices, and more particularly to a system for automatically assigning terminal numbers to terminal devices such as telephones.

[0002]

2. Description of the Related Art For example, in a four-wire analog button telephone system, a main device and a telephone as a terminal device are connected by a total of four wires, a two-wire analog call line and a two-wire data transmission line. It is general that the connection is performed in a star-type connection mode in which the respective telephones are connected in a one-to-one correspondence.

In this system, since each telephone and the main unit are individually connected by a data bus, an interface circuit corresponding to each telephone must be incorporated in the main unit, which complicates the hardware configuration. Turn into. Therefore, in order to save the data transmission circuit on the main device side, a system having a mode in which the data transmission line is a bus type wiring and only the analog communication line is star-type connected has been put into practical use. In this system, since the data transmission lines are bus-type wiring, it is necessary to set a terminal number for each telephone and exchange data. In the conventional system, a DIP switch incorporated in each terminal device is preset and a terminal number is given.

[0004]

As described above, in the conventional analog telephone system in which the star connection and the data bus are mixed, the dip built in the terminal device is connected to the terminal device connected to the data bus. The switch is set and the terminal number is given.

However, the conventional system for automatically assigning terminal numbers to terminal devices is complicated because it is necessary to assign terminal numbers to each terminal device by setting respective dip switches. There is also a problem that the manual setting of the terminal number also contributes to an erroneous setting.

SUMMARY OF THE INVENTION An object of the present invention is to provide a system for automatically assigning terminal numbers to terminal devices, which allows terminal numbers to be set very easily.

[0007]

In order to solve the above-mentioned problems, in the automatic terminal number assigning system for a terminal device according to the present invention, each of the main device and the plurality of terminal devices is star-connected via an analog communication line. In addition, in the terminal number automatic allocation system to the terminal device connected via the data bus, in response to the transmission of the allocation request signal from the terminal device via the analog call line connected to the terminal device. Then, the allocation signal is sent from the main device to the terminal device, the allocation signal is received, and for the terminal device that is ready for the terminal number receiving process, a predetermined terminal number signal from the main device. Is transmitted via the analog call line or the data bus to set the terminal number. Further, the terminal number is set by periodically sending out a predetermined terminal number signal from the main unit to the terminal device to which the terminal number is not assigned, through the analog call line or the data bus. It can also be configured.

[0008]

According to the present invention, the main device and the plurality of terminal devices are star-connected via the analog call line and connected via the data bus, and the terminal device is connected to the terminal device via the analog call line. The preparation for the number receiving process is notified, and after the preparation is completed, the main unit sends a terminal number signal through the analog communication line or the data bus to set the terminal number. Alternatively, a terminal number signal is periodically sent from the main unit to a terminal device to which a terminal number has not been assigned, through an analog communication line or a data bus to set the terminal number.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram of a system for automatically allocating terminal numbers to terminal devices according to an embodiment of the present invention, and FIG. 2 shows an operation sequence of the present embodiment.

Referring to FIG. 1, in the system for automatically assigning terminal numbers to terminal devices of this embodiment, the main device 1 has N terminal devices 2 (1), 2 (2) via the data bus B. ，
, 2 (x), ..., 2 (n) are connected, and n
Individual independent analog telephone lines A (1), A (2), ..., A
The respective terminal devices are connected via (x), ..., A (n).

First, a procedure for automatically assigning a terminal number to each terminal device according to the first embodiment will be described with reference to FIG. When a request signal for terminal number assignment is sent from the terminal device 2 (x) to which the terminal number is assigned to the main device via the analog communication line A (x), the main device 1 performs the terminal number assignment process. An allocation signal indicating that the terminal device 2 (x) is transmitted via the analog communication line A (x).
To prompt the terminal device 2 (x) to prepare for the terminal number assignment reception process. When this preparation is completed, the terminal number is sent from the main device 1 to the terminal device 2 (x) via the analog communication line A (x) or the data bus B. As the allocation signal, an AC signal, a DC signal, a pulse signal, or a composite signal of these can be used. Thus, the terminal number signal received via the analog communication line A (x) or the data bus B is set as the terminal number assigned to the terminal device. After the terminal number setting process, the terminal device performs subsequent post-processing.

Next, a procedure for automatically assigning a terminal number to each terminal device according to the second embodiment will be described with reference to FIG. While the first embodiment sends the allocation signal from the main device to the terminal device in response to the allocation request signal from the terminal side, the present embodiment sends the allocation request signal from the terminal device. Then, the main device suddenly sends an allocation signal to the terminal device to allocate the terminal number. In this case, the main device periodically executes the allocation procedure for the terminal devices whose terminal numbers are not allocated.

[0013]

As described above, the system for automatically assigning a terminal number to a terminal device according to the present invention makes it possible to automatically assign a terminal number to a terminal device connected via a data bus. It is not necessary to assign terminal numbers. In addition, erroneous setting at the time of manually setting the terminal number is eliminated.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a system for automatically assigning terminal numbers to terminal devices according to an embodiment of the present invention.

FIG. 2 is a diagram showing an operation sequence of the first embodiment of the present invention.

FIG. 3 is a diagram showing an operation sequence of a second embodiment of the present invention.

[Explanation of symbols]

1 main device 2 (1), 2 (2), ..., 2 (x), ..., 2
(N) Terminal device

Claims (2)

[Claims] 1. A system for automatically allocating a terminal number to a terminal device, wherein a main device and a plurality of terminal devices are star-connected via an analog communication line and are connected via a data bus, In response to the transmission of the allocation request signal from the terminal device through the analog call line connected to the terminal device, the main device transmits an allocation signal to the terminal device, receives the allocation signal, and receives a terminal number reception process. The terminal device is characterized in that the terminal device sets a terminal number by sending a predetermined terminal number signal from the main device through the analog communication line or the data bus to the terminal device which has been prepared. Terminal number automatic allocation system to. 2. A main device and a plurality of terminal devices are star-connected via an analog telephone line, and in a system for automatically assigning terminal numbers to terminal devices connected via a data bus, A terminal number is set by sending a predetermined terminal number signal from the main device to the unallocated terminal device periodically through the analog call line or the data bus. Terminal number automatic allocation system to.