JPH03206761A - Network terminating set - Google Patents

Abstract

PURPOSE:To attain data transmission at the outside of a home by no ringing communication through the use of an existing home bus system by using a telephone trunk line interface to identify a no ringing communication data or telephone talking. CONSTITUTION:A telephone trunk line interface 12 identifies whether a data inputted from a telephone trunk line 11 is a no ringing communication data or telephone talking and a controller according to the identification information outputs a connection request to a line exchange switch 13 and an interface unit 14. In the case of telephone talking, a line exchange switch 13 connects the telephone trunk line interface 12 and other telephone trunk line connecting to a telephone master set on a home bus 1. In the case of a no ringing communication data, the interface unit 14 allocates a home bus information channel and the line exchange switch 13 connects the telephone trunk line interface 12 and the information channel of a home bus 1. Thus, the no ringing communication at the outside of a home using the telephone trunk line 11 is attained and the talking is attained by using a telephone set on a home bus.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a cable termination device that serves as an interface between a home bus and the outside of the home.

[Conventional technology]

FIG. 3 is a block diagram showing the structure of a conventional network termination device disclosed in, for example, Japanese Patent Application Laid-Open No. 63-198442.
In the figure, 1 indicates one or more coaxial cables and 1
A home bus using a pair or multiple pairs of wires and consisting of an information channel for data transmission and a control channel for transmitting management data of the transmission path; 2 a home bus controller for managing the home bus 1; 3 a home bus controller for managing the home bus 1; A telephone office line interface for managing the telephone office line, 4.6 a home bus interface unit for communicating with terminal devices on the home bus I, and 5 a home bus interface unit for communicating with outside the home via a CATV line, etc. 7 is a home bus bidirectional distributor, 8 is a communication line such as a CATV line, and 9 is a telephone office line. Next, the operation will be explained. First, a request for connection to the home bus 1 arrives at the out-of-home communication interface 5 from an out-of-home communication line 8 such as a CATV line. If coming from telephone office line 9, BT corresponds to a connection request.
(beltone) arrives at the central office line interface 3. Next, the outside-home communication interface 5 or the telephone office line interface 3 issues an information channel use request command to the home bus controller 2 via the home bus interface unit 4.6 and the home bus bidirectional distributor 7. 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 unit that issued the request command. Return to Soto 4 or 6. In response to the information channel use permission command, the out-of-home communication interface 5 connects a communication line 8 such as a CATV line to the information channel of the home bus 1, and at the same time issues a notification of completion of connection to the home bus 1 to the data source. Thereafter, communication between a communication line 8 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 telephone office line 9, when the telephone office line interface 3 receives permission to use the information channel, the telephone on the home bus 1 is connected to the home bus 1 by connecting the telephone office line 9 to the home bus 1. 9 and continue to operate as a normal telephone. When terminating the communication, the terminal device on the communication line outside the home, if it is on the home bus 1, issues a communication termination command to the home bus controller 2, and releases the information channel.

[Problem to be solved by the invention]

Since the conventional network termination equipment is configured as described above,
Receive no-ringing communications (data transmission) using the telephone office line in an existing home bus system consisting of a home bus and a home telephone system that is connected to the home bus and receives the telephone office line. In this case, simply connecting the central office line to the telephone made it impossible to switch between no-ringing communications (data transmission) and telephone calls. In addition, there were other problems, such as duplication of functions with the telephone main device connected to the existing home bus system, causing malfunctions and increasing costs. This invention was made to solve the above-mentioned problems, and in the case of no-ringing communication (data transmission) using telephone office lines, it enables no-ringing communication outside the home, and in the case of telephone calls, The purpose of this invention is to obtain a network termination device that enables telephone calls on a home bus.

[Means to solve the problem]

The network termination device according to the present invention allows the central office line interface to identify whether data input from the central office line is no-ringing communication data or a telephone call, and connects the controller to the circuit switching switch and the interface unit according to this identification information. outputting a request to cause the circuit switching switch to connect the central office line interface to another central office line connected to the telephone main unit on the home bus in the case of a telephone call; The interface unit allocates the information channel of the home bus, and the line switching switch connects the telephone office line interface to the information channel of the home bus.

[For use]

In the case of a telephone call, the cable termination device of the present invention enables a telephone call by connecting a telephone office line interface and another telephone office line with a line exchange switch according to a connection request output from a controller, In the case of no-ringing communication data, the interface unit allocates the information channel of the home bus according to the connection request output from the controller, and the circuit exchange switch connects the telephone office line interface and this home bus information channel, thereby achieving no-ringing communication. enable.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, reference numeral 1 indicates an information channel 1a for transmitting data to and from outside the home, using one or more coaxial cables and one or more pairs of wires, and control for transmitting management data of the transmission line. A home bus consisting of channel 1b, 10 a telephone office line connected to the telephone main device on the home bus, 11 a telephone office line, and 12 whether the data input from the telephone office line 11 is no-ringing communication data or telephone 13 is a circuit switching switch that connects the information channel 1a or the telephone office line 10 to the telephone office line interface 12 according to a connection request; 14 is a circuit switching switch that uses the control channel lb according to a connection request; The interface unit 15 that allocates the channel 1a is a controller that receives identification information from the telephone office line interface 12 and outputs a connection request to the line switching switch 13 and the interface unit 14. Next, the operation will be explained using the state transition diagram shown in FIG. First, in the case of a telephone call, the data input from the telephone office line 11 is identified by the telephone office line interface 12, and the controller 15 transmits the data to the line exchange switch 1 according to this identification information.
3 makes a connection request to the telephone office line 10 (state b
, at this time interface unit l4 does not work)
. When the connection is completed, the central office line interface 12 receives the transmission request (state c) and outputs the telephone conversation to the line switching switch 13. The line switching switch 13 outputs the telephone call via the central office line 10 to the telephone main unit on the home bus 1. When the call ends, a line disconnection request is received from the telephone office line interface 12 (state d), the line exchange switch 13 disconnects the line, and returns to the no-communication state (state a). Next, in the case of no-ringing communication (data transmission),
The data input from the central office line 11 is identified by the central office line interface 12, and according to this identification information, the controller I5 transmits the information channel 1 to the interface unit 14.
Outputs a connection request to allocate a (state e). This interface unit 14 uses the control channel 1b of the home bus 1 and allocates the use of the information channel 1a, and similarly the controller 15 uses the circuit exchange switch 13
A request for connection with this information channel 1a is output to (state f). Then, when the connection is completed, the telephone office line interface 1
A transmission request is output to 2 (state g), and the telephone office line interface 12 transmits data to the information channel 1a via the line exchange switch 13, and performs no-ringing communication by having a predetermined information terminal device receive the data. When the data transmission is completed, a line disconnection request is sent from the telephone office line interface 12 to the line exchange switch 13 (state d).
), the line exchange switch 13 disconnects the line and returns to the no-communication state (state a).

【Effect of the invention】

As described above, according to the present invention, the telephone office line interface identifies whether it is no-ringing communication data or a telephone call, and the controller outputs a connection request to the line switching switch and the interface unit according to this identification information, and the telephone In the case of a telephone call, the circuit-switched switch connects the central office line interface to another central office line, and in the case of non-ringing communication data, the interface unit allocates the information channel of the home bus, and the circuit-switched switch connects the central office line interface with another central office line. Since the central office line interface is connected to the information channel of this home bus, it is possible to expand the system by using the home bus system of the existing home bus type telephone to enable data transmission outside the home through no-ringing communication. Furthermore, since the telephone transmission line of the home bus is not exclusively used during data transmission on the home bus, extension communication using a telephone becomes possible.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a network termination device according to an embodiment of the present invention, FIG. 2 is a state transition diagram of a controller in a network termination device according to an embodiment of the present invention, and FIG. 3 is a diagram of a conventional network termination device. FIG. 2 is a block diagram showing the configuration of a terminal device. In the figure, 1 is a home bus, 12 is a telephone office line interface, 13 is a circuit exchange switch, 14 is a high interface unit, and 15 is a controller. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] In a network termination device that connects a home bus consisting of an information channel for data transmission and a control channel for transmitting management data of the transmission path, and serves as an interface with outside the home, the information channel of the home bus and the control channel for transmitting management data of the home bus are A circuit exchange switch that switches the telephone office line connected to the telephone main device according to a connection request, and outputs incoming no-ringing communication data or telephone calls to the circuit exchange switch, and outputs the no-ringing communication data communication and the telephone conversation. a central office line interface for identifying a telephone call; an interface unit for allocating an information channel of the home bus according to a connection request using a control channel of the home bus; and an identification input from the central office line interface; A network termination device comprising: a controller that outputs a connection request to the circuit switching switch and the interface unit according to information.