JPH0377464A - Method for setting data transmission terminal equipment automatically depending on kind of line - Google Patents

Abstract

PURPOSE:To minimize the time required for adjustment and to avoid line connection error hy selecting a dial signal of tone and pulse dial sequentially, applying automatic dialing and detecting call arrival enable or disable state so as to discriminate the kind of line. CONSTITUTION:A control section 11 uses a network controller NCU 16 based on a built-in program of a data transmission terminal equipment and tries to sequential connection to a specific station number by tone dial or pulse dial system, applies the operation to detect line connection entirely automatically, discriminates the kind of line depending on call arrival enable or disable state and sets the result to a line kind storage RAM. Thus, the initial setting of the dial system is implemented automatically in a data transmission terminal equipment having an intelligent function interface.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data transmission terminal that transmits data to a center or the like using a public communication line.

[Conventional technology]

Tone (PB) is used as a dialing method for public communication lines.
There are two types, a type and a pulse (DP) type, so when installing a data transmission terminal, the initial settings are made to set the dial according to the line.

[Problem to be solved by the invention]

The settings for the tone type and pulse type mentioned above are done manually, with the operator knowing in advance whether the line to be connected is the PB type or the DP type. However, since it is an Iruma operation, it is possible to misunderstand whether it is the PB type or the DP type and make the wrong settings.

Furthermore, a person who does not understand the system well may touch the terminal device and change the settings. Therefore, it is preferable that the initial settings be made automatically so that they are not set by humans and cannot be changed by humans.

Incidentally, in recent years, interfaces including network control units (hereinafter referred to as NCUs) and modems (hereinafter referred to as modems) that have intelligent functions have come onto the market. When given a command, these devices interpret the command and automatically make and receive calls.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a setting method for automatically initializing a dialing method in a data transmission terminal having an interface with intelligent functions.

[Means to solve the problem]

The automatic setting method of the present invention uses an NCU to sequentially select tone dialing and pulse dialing for a specific station number, and performs automatic transmission to detect whether a call can be received or not. It is designed to perform judgment and dial settings.

[Effect]

A built-in program in the data transmission terminal allows automatic transmission to a specific station number using NCTJ, and the NCU can check whether the line connection has been established based on a reply from the other station. Therefore, when automatically transmitting, select tone dial or pulse dial, and when the line is connected, it will be known that this method is used, and the line type can be set accordingly.

C Embodiment] An embodiment of the present invention will be described below with reference to the drawings. First, the configuration of the data transmission terminal is shown in FIG. The data transmission terminal has various parts controlled by the control section 11, including the display section 12. Printing section 13. Tenki Part 14. A function key section 15, which shares the functions related to the data to be transmitted, and an NCU section 16. Modem section 17. Like the telephone section 18, it shares the data transmission function.

Also, a program ROM 20 that determines the operation of the control unit 11.
．． Storage unit RAM21. A line type storage RAM 22 is included.

In the present invention, as a data transmission terminal, the method is set according to the type of line to be connected (PB type, DP type). To do this, as an initial setting when connecting to a line, the line type is determined in accordance with the program stored in the program ROM 20 in accordance with the procedure described below, and the result is set in the line type storage RAM 22.

In order to operate the NCtJ section (including the modem section),
Commands are used, and V.25bis recommended by CCITT and AT commands by Haynes Corporation are well-known as command systems for this type of device. Any system may be used, but in the following it will be assumed that control is performed using AT commands. According to the flowchart in FIG. 1, when the initial setting operation is started (Sl), the control unit 11 sends a command to the NCU unit 16 to turn on the ATDT 117c according to the program in the program ROM 20. As a result, the NCU unit 16 dials number 117 using tone dialing (
S2). The selection of this specific area number was simply one that would ensure that calls could be received from 117 at any time, and would not cause trouble to that area number. If you receive a call as a result of dialing (
In S3), the NCU section 16 notifies the control section 11 of the result C0NNECTc*. As a result, the control unit 1
1 determines that the connected line is a PB line and stores the line type R.
Write PB to AM22 (S4), N from NCU unit 16
o When the result CARRIER is notified (S3), the control unit 11 determines that the connected line is not a PB line and sends the command ATDP117c* to the NCU.
16. As a result, the NCU section 16 dials number 117 using pulse dialing (S5). When a call is received as a result of dialing (S6), the control unit 11 determines that the connected line is a DP@ line, and stores it in the line type storage RAM 22.
Write DP in (37), N if no incoming call is detected.
The CU section 16 notifies the # seed section 11 of the result No CARRIER, and the control section 11 causes the display section 12 to display a line connection failure. Note that in the above, PB,
Although we have considered the order of DP, it goes without saying that the order of DP and PB may also be used.

[Effects of the Invention] As explained above, according to the present invention, when a data transmission terminal is connected to a line, in the initial setting operation, connection is sequentially attempted by tone dialing or pulse dialing to a specific station number. , all operations for detecting line connections are performed automatically.

Therefore, since settings are not made manually as in the past, there are no line connection errors and the time required for adjustment can be minimized.

[Brief explanation of drawings]

FIG. 1 is a flowchart of an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram of a data transmission terminal implementing the present invention. 11-control section, 16--NCU section, 17--modem section, 18--telephone section, 20--program ROM. 22--Line type storage RAM.

Claims (1)

[Claims] In a type of data transmission terminal that drives an NCU (network control unit) under command control to automatically send and receive calls, the NCU is used to sequentially select dialing between tone dialing and pulse dialing for a specific station number. An automatic setting method corresponding to line type, which is characterized by detecting whether a call can be received or not by sending a transmission, and determining the line type and setting the dial.