JPS63198442A - Network termination equipment - Google Patents

Abstract

PURPOSE:To improve the expanding and maintenance performance by separating a communication function with a place at the outside of its own house from a management function of a home bus. CONSTITUTION:A connection request with a home bus 1 reaches an outside equipment communication interface 5 from a communication line at the outside of the terminal equipment communication line such as a CA, TV line and a bell tone from a telephone line reaches an interface 3. Each interface issues a use request command of an information channel to a home bus controller 2 via home bus interface units 4, 6 and the bus 1. Thus, the controller 2 returns the command and channel number to the relevant units 4, 8 when the information is in the usable state at that point of time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a network termination device that interfaces a home bus with outside the home.

Conventional technology In the field of f(A), network terminator devices have generally been component-type devices in the form of home bus controllers with telephone office line management functions and communication functions with outside the home. Ta.

FIG. 3 is a block diagram showing the configuration of a conventional network termination device. In Figure 1, 10
is the home bus, 11 is the home bus controller, 12
is a telephone office line interface, 13 is a telephone office line, 14 is an outside communication interface, and 15q CATV @ line.

In home automation (HA), telephone office lines are mainly used for connections outside the home, but in order to connect the telephone office line to the home bus, a telephone office line management section is currently added to the home path controller device. and realizes the necessary functions. In this case, in addition to the telephone office line, another communication medium, such as a CATV line, is connected to the home bus, and when information communication is performed outside the home, the home bus controller device The reality is that functions are realized by adding a communication interface section.

The reason for this is that when communicating through a pcATV line using a telephone office line, an information channel management function is required to use the information channel of the home bus.

Problems to be Solved by the Invention However, if the network termination device is configured in the above-described manner, it becomes necessary to add functions to the home bus controller device each time the need for communication via another communication medium arises. Because of this, the time and cost required for function expansion are large, and all functions are not available on the home bus.
Since it is included in the controller device, there are limits to its functional expansion, and maintenance becomes difficult even after the function is realized.

In view of the above problems, it is an object of the present invention to improve expandability and maintainability by separating the communication function with outside the home from the home bus management function.

Means for Solving the Problems In order to achieve the above object, the present invention separates the home bus controller function and the communication management function with outside the home within the network termination device, and performs each function using a separate CPU. It is something to be managed.

Operation The present invention has the above-described configuration, and the network termination device can be configured as necessary to perform functions such as ■ Home bus controller function, ■ Home bus controller function, ■ Telephone office line management function, and ■ Home bus controller function. Data communication function, home bus controller function, telephone office line management function, off-premises data communication function, and other network termination device functions can be freely selected and expanded by connecting other out-of-home communication lines. This makes maintenance easier.

EXAMPLES Hereinafter, examples of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a network termination device according to an embodiment of the present invention. In Fig. 1, 2 is a home bus controller, 3 is a telephone office line interface, 4 is a home bus interface unit, 6 is an outside communication interface, 6 is a home bus interface unit, and 7 is a bidirectional home bus. It is a distributor. FIG. 2 is an example of a communication sequence between the out-of-home communication office line and the terminal equipment on the home bus.

Here, the home bus controller 2 has all the functions to manage the home bus 1 including both control channels and information channels, and the processing for communication with the telephone office line and the CATV office line is performed using the outside communication interface. 5 or the telephone office line interface 3 and the interface unit for the home bus. The communication sequence in this case will be explained next.

First, from the communication line outside the house such as a CATV line to the home bus 1.
A connection request to the external communication interface 6 arrives at the external communication interface 6. In the case from the central office line, a BT (pel tone) corresponding to a connection request arrives at the central office line interface 3. Next, the outside communication interface 6 or the telephone office line interface 3 and the home bus interface uni 7
) 4.6 Issues an information channel use request command to the home bus controller 2 via the home bus 1. When the home bus controller 2 receives this information channel use request command, if the information channel is usable at that time, it sends the information channel use permission command and the channel number of the information channel to be used to the interface that issued the request command.・Unit 4,
Return it to 6. In response to the above-mentioned information channel use permission command, the out-of-home communication interface 5 connects a communication line such as a CATV line to the information channel of the home bus 1, and at the same time issues a home bus connection completion notification to the data source.

Thereafter, communication between a communication line such as a CATV line and a terminal device on the home bus 1 is started via the home bus 1.

In the case of an incoming call from the central office line, when the central office line interface 3 receives permission to use the information channel, it connects the central office line to the home bus, connects the telephone on the home bus to the central office line, and performs normal operation. It continues to operate in the same way as a telephone. To end communication, connect the terminal device on the communication line outside the home or the terminal device on home bus 1 to the home bus.
A command to terminate communication is issued to the controller 2 and the information channel is released.

Effects of the Invention By applying the present invention as explained above, the home bus and the home bus can be connected by installing an outside communication interface part necessary depending on the type of outside communication line connected to the network termination device. Since it is possible to perform outside communication, even if a type of outside communication @ line is added, it can be handled by simply adding an outside communication interface unit corresponding to the communication line. Furthermore, since the external communication interfaces for each communication line are functionally completely independent, maintenance and management are extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of a network termination device according to an embodiment of the present invention, FIG. 2 is a diagram showing an example of a communication sequence between an external communication line and a terminal device on a home bus in the same device, and FIG. The figure is a configuration diagram of a conventional network termination device. 3...Telephone office line interface, 4...
...Interface unit for home bus, 6...
...Out-of-home communication interface unit, 6...Home bus interface unit, 7...
Home busno two-way distributor. Name of agent: Patent attorney Toshio Nakao and one other person Kabuki121 ″′

Claims (1)

[Claims] A home bus controller that manages a home bus using one or more coaxial cables and one or more pairs of cables, a telephone office line interface that manages telephone office lines, and a CATV line, etc. An external communication interface for communicating with outside the home and an interface for communicating with terminal devices on the home bus.
A network termination device consisting of a unit and characterized in that the communication function between outside the house and the home bus is separated from the home bus management function.