JPH04207793A - Terminal adaptor device - Google Patents

Abstract

PURPOSE:To reduce an operating cost in data communication by operating a device only by a station feed power in a standby state, and performing the automatic start-up of existing data terminal equipment by receiving the supply of a commercial power. CONSTITUTION:In the standby state where no data communication is performed, an ISDN line correspondence part 12 receives a station feed from an ISDN 17, and awaits a start-up request INFO2 from the ISDN 17. When the start-up request INFO2 from the ISDN 17 is received in such standby state, the ISDN line correspondence part 12 sends out a control signal to request the supply of power to a power source control part 15, and also, sends out a response signal INFO3 to the ISDN 17. Thence, the power source control part 15 receiving the control signal supplies prescribed power to every circuit part. Simultaneously, the power is supplied to the existing data terminal 18 via an AC outlet 16, which starts up the existing data terminal 18.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a terminal adapter device, in particular, a station power supply function that automatically responds with low power consumption, and an automatic power start-up function for existing data terminal devices. In some cases, the present invention relates to a terminal adapter device compatible with the I5DN network, which has been improved so that it can operate using local power supply and can operate by consuming commercial power only when the device is started up.

BACKGROUND OF THE INVENTION In recent years, long-distance data communication has come to be carried out via public lines, and when long-distance data communication is carried out via such public lines, the power supply of the data terminal device in the terminal adapter device is In some cases, the device is provided with an automatic activation response means that is not turned ON all the time, but is automatically turned ON only when a call is made or received, especially when a call is received.

Conventionally, in order to realize this type of automatic activation response function, at the interface between the terminal adapter device and the existing data terminal, a called signal, that is, whether or not the terminal adapter device is receiving a paging signal from the line, is required. This called signal is used to control the power supply to the existing data terminal equipment.

Next, an overview of the conventional terminal adapter device having the above configuration will be explained with reference to FIGS. 3 and 4.

FIG. 3 is a schematic block diagram schematically showing the configuration of a conventional terminal adapter device, and FIG. 4 is a timing chart showing a call originating/receiving procedure in the same terminal adapter device.

That is, as shown in the device configuration of FIG. section 3 and a communication control section 4 for each of these corresponding sections 2 and 3. and a power supply control unit 5, and the power supply control unit 5 determines the power required for the existing data terminal device 7.
I am trying to supply it through.

In the configuration of the terminal adapter device 1, as shown in FIG. to supply power. Next, the existing data terminal 7 learns of the incoming call from this called signal and prepares to receive it, and when it becomes ready to receive the call,
Reception data is received using the ONL as a receivable signal. When the data end command is received, the called signal is set to 0FFL, power supply to the existing data terminal 7 is stopped, and the terminal enters a standby state.

Problems to be Solved by the Invention However, in the conventional terminal adapter device configured as described above, in order to realize the automatic activation response function, it is necessary to keep the terminal adapter device activated at all times. There is a problem in that power is consumed even when the device is on standby.

The present invention aims to solve these conventional problems, and provides a terminal of this type that is maintained in a standby state only by the power supplied by the station during standby, so that no power is consumed from the commercial power source. The object is to provide an adapter device.

Means for Solving the Problems In order to achieve the above object, the present invention includes a line support section that operates using station-supplied power, and a control signal from the line support section that supplies the necessary commercial power to each circuit when a call is received. and a power supply means for supplying the necessary power to the existing data terminal device according to the control signal, and operates only by the local power supply power during standby, and when starting up, It is designed to automatically start up existing data terminal equipment when supplied with commercial power.

Therefore, according to the present invention, with the above configuration, the operation is performed only by the station power supply during standby, so no power is consumed from the commercial power supply, and the incoming call In some cases, by automatically responding, it is possible to automatically start up existing data terminal equipment in response to the supply of commercial power.For this purpose, for example, data communication may be performed during the night time period when communication charges are lower. This makes it possible to effectively reduce the operational cost of this data communication.

Embodiment Two embodiments of the terminal adapter device according to the present invention will be described in detail with reference to FIGS. 1 and 2.

FIG. 1 is a schematic block diagram schematically showing the configuration of a terminal adapter device to which this embodiment is applied, and FIG. 2 is an explanatory diagram showing a call control sequence of the same device.

As shown in the device configuration of FIG. 3, the terminal adapter device 11 to which this embodiment is applied includes an I5DN line support section 12 corresponding to the I5DN network 17, and an existing data terminal 18.
The terminal support unit 13 corresponding to
7 and the existing data terminal 18, and a communication control section 14 that performs control, and a power supply control section that supplies the required power to each circuit section using a control signal that notifies external calls from the I5DN line support section 12. 15, and power to the existing data terminal 18 is supplied from the AC outlet 16 according to the control signal.

Next, the operation of the terminal adapter device having the configuration of the above embodiment will be described.

In the configuration of this embodiment, as shown in FIG.
During standby, when no data communication is being performed, the l5DN line support unit 12 receives station power from the l5DN network 17 and waits for an activation request INFO2 from the l5DN network 17. In this standby state, when receiving the activation request INFO2 from the l5DN network 17, the l5DN line support unit 12 first sends a control signal requesting the power supply control unit 15 to supply power, and also sends a control signal to the power supply control unit 15 to request power supply. In response, a response signal INFO3 is sent out. Then, the power supply control section 15 that receives the control signal supplies the required power to each circuit section,
At the same time, power is supplied to the existing data terminal 18 through the AC outlet 16 to start up the existing data terminal 18.

Further, from this point on, as shown in the call control sequence of FIG. 2, normal call control is performed and necessary data communication from the I5DN network 17 is executed.

When the data communication ends and a release completion message is received from the relevant I5DN network 17, the I5DN line support unit 12 stops the power supply from the commercial power supply through the power supply control unit 15, and at the same time stops the power supply to the existing data terminal 18. The power supply is also stopped and the device returns to standby mode.

In other words, as described above, in the configuration of this embodiment,
During standby, it is operated only by the station power supply, so
It does not consume power from the commercial power supply (and when a call arrives, by automatically answering the call, it is possible to automatically start up the existing data terminal device by receiving the supply of commercial power).

Effects of the Invention As is clear from the description of the embodiments described above, the present invention comprises a line support unit that operates using station-supplied power, and a power supply that supplies the required commercial power to each circuit according to a control signal from the line support unit when a call is received. The system is configured to include a control section and a power supply means for supplying the required power to the existing data terminal device using a control signal, and is operated only by the local power supply during standby. , there is no need to consume any power from the commercial power supply, and by automatically answering a call when a call arrives, it is possible to automatically start up the existing data terminal device in response to the supply of commercial power.
For example, it has excellent features such as being able to effectively utilize the night time period when communication charges are low for data communication, and reducing operational costs for this data communication.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram schematically showing the configuration of a terminal adapter device to which an embodiment of the present invention is applied, FIG. 2 is an explanatory diagram showing a call control sequence in the same terminal adapter device, and FIG. 3 is a conventional example. FIG. 4 is a schematic block diagram schematically showing the configuration of the terminal adapter device according to the present invention, and FIG. 4 is a timing chart showing the procedure for making and receiving calls in the same terminal adapter device. 11...Terminal adapter device, 12...l5DN
Line support unit, 13...terminal support unit, 14...communication control unit, 15...power control unit, 16...AC
Outlet, 17...15DN network, 18...
Existing data terminal. Agent: Patent attorney Akira Koyaharu and 2 others Figure 2

Claims (1)

[Scope of Claims] A line support unit that operates using local power supply power; a power supply control unit that supplies required commercial power to each circuit according to a control signal from the line support unit when an incoming call is received; and an existing data terminal that operates using the control signal. It is equipped with a power supply means that supplies the required power to the device, and when on standby,
What is claimed is: 1. A terminal adapter device that operates only with station-supplied power and is capable of automatically starting an existing data terminal device by receiving commercial power at startup.