JPS5833350A - Network controller - Google Patents

Abstract

PURPOSE:To ensure the quick information of a fault for an unmanned operation of a data communication system, etc., by providing a function to dial a specified telephone number. CONSTITUTION:In the normal network control mode, a state monitoring part 4 monitors the transmission and reception of the signal 8 and the signal 9 to a modulating/demodulating device, etc. and a data terminal device, etc. respectively. The part 4 informs the occurrence of a fault to a control part 2 when the fact that the transmission/reception of the above-mentioned signals is carried out by a procedure other than the normal one is detected. Thus the part 2 discontinues the control of the network, dials automatically the telephone number of a telephone number setting part 3, transmits the signal decided at a signal transmitting part 5 after receiving an answer from the remote subscriber side and informs a fault of the data communication system.

Description

[Detailed description of the invention] The present invention relates to a network control device.

Conventionally, this type of network control equipment does not have the function of automatically dialing based on its own judgment, and when a data terminal device or modem device connected to the network control equipment fails during unattended operation of a data communication system, etc. There was no way to notify maintenance personnel, etc. of the failure.

An object of the present invention is to provide a network control device that eliminates the above-mentioned drawbacks by adding a function to automatically dial a specific telephone number.

According to the present invention, a network control unit, a circuit for setting a specific telephone number, and the specific telephone number -1! There is obtained a network control device characterized in that it comprises a circuit for determining whether to automatically dial a number, and a circuit for transmitting a predetermined signal to the dialed destination.

Next, embodiments of the invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of a network control device according to the present invention.

Referring to FIG. 1, one embodiment of the network control device of this invention is composed of a network control section 1, a control IS 2, a telephone number setting section 3, a status monitoring section 4, and a signal sending section 5. Network control unit 1
A telephone line 6 and a data communication line to a modem, etc. are connected to the status monitoring unit 4', and a signal 8 to the modem, etc., a signal 9 to a data terminal device, etc., and a communication failure notification manual are connected to the status monitoring unit 4'. 10 are connected.

During normal network control operations, the status monitoring unit 4 monitors the interaction of the signal 8 with the modulator/demodulator etc. and the signal 9 with the data terminal equipment etc., and when the normal procedure or switching is not performed. When detected, the controller 2 is notified of the abnormality. control 182
stops the network control operation, automatically dials the telephone number in the telephone number setting section 3, and after the other party responds, the signal sending section 5 sends out a predetermined signal to notify that the data communication system is abnormal. --Also, when a fault signal-in-progress alarm signal is input to the communication failure notification input 10 connected to the status monitoring section 4 from a data terminal device, etc., the same operation as described above is performed.

As described above, according to the present invention, a failure notification in the case of unmanned operation i of a data communication system can be promptly notified to a maintenance worker or the like.

The present invention has been described above with reference to embodiments, but this is a concrete explanation of the invention, including the automatic dialing telephone number, multiple communication failure notification inputs, and the types of signals to be sent. To make it easier to understand, it is easy to make No. 1 a voice using a voice synthesis IC or the like.

As explained above, this invention adds the function of dialing a specific telephone number and makes it possible to send a predetermined signal so that maintenance personnel, etc. You can quickly notify the location.

[Brief explanation of the drawing]

FIG. 1 is a four-part diagram showing one embodiment of the present invention. 1...Network control unit, 2...Control unit, -3
...Telephone number setting unit, 4...Status monitoring unit, 5...Signal sending unit, 6...Telephone line, 7... Data communication line with modulator/demodulator, etc., 8... Signal with modulator/demodulator, etc., 9...
・Signal with data terminal device, etc., 10... Communication failure notification input.

Claims (1)

[Claims] A network control unit, a circuit for setting a specific telephone number, and a circuit for determining automatic dialing of a specific telephone number;
and a circuit for transmitting a predetermined signal to a dialed destination.