JPS62112451A - Setting system for selective signal system - Google Patents

Abstract

PURPOSE:To reduce the load of the setting work of a communication equipment by successively generating selective signals belonging to different kinds of signal systems at the setting of a communication equipment and sending the generated signals to a telephone line to set up the signal system to be generated when a dial tone is not sent from an exchange. CONSTITUTION:When a service man connects telephone lines L1, L2 to a network control device 1 and turns on a power supply, a test program is executed by a system control part 5 and the signal system of a selective signal is set up. The system control part 5 discriminates whether a dial tone detecting circuit 4 detects a dial tone or not, and when a dial tone is not detected, sets up the signal system of the selective signal. When a dial tone is detected, the signal system of the current selective signal is switched to that of the next selective signal and similar operation is successively executed up to the setting of the setting system.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a selection signal method setting method for setting a selection signal method for selecting a destination in a communication device that uses a telephone line as a transmission line.

[Prior Art] In public telephone lines where a nationwide line network is formed, there are multiple types of exchanges forming each node, and when calling a destination, a selection signal is sent from a terminal device to the telephone line. The method is determined by the type of each exchange.

Signal systems for such selection signals can be broadly divided into DTM.
F (Dual Tone Multi Frequency
There are two methods: cy) method and dial pulse method, and furthermore, there are two methods of dial pulse method: 1 opps and 20 pps.

Now, various types of communication devices such as facsimile machines are in use that use the public telephone line network as a transmission line, and some of these communication devices are equipped with automatic call/receive functions to enable unmanned operation. There are many.

However, as mentioned above, when installing two communication devices, the signaling method of the selection signal sent to the telephone line when making a call to a destination differs depending on the type of exchange of the telephone line to which the communication device is trying to connect. It is necessary to investigate which signaling system can be applied.

Conventionally, service personnel who install a communication device have to manually set the signal format of the selection signal that can be used on the telephone line to which the communication device is connected. Normally, this work is done by directly operating switches inside the communication device, which makes it difficult for the user of the communication device to operate, and requires a service technician to make adjustments again when the communication device is moved. It had become.

[Purpose] The present invention has been made in order to solve the above-mentioned disadvantages of the conventional technology, and an object of the present invention is to provide a selection signal method setting method that can reduce the labor of installing a communication device. There is.

[Configuration] In order to achieve this object, the present invention sequentially generates selection signals of different types of signaling systems and sends them to the telephone line when a communication device is installed.

Each time, it is determined whether a dial tone is being sent from the exchange, and the signaling system when the dial tone is no longer being sent is set as the signaling system for the selection signal on the telephone line.

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

FIG. 1 shows a facsimile machine according to an embodiment of the present invention. Note that the drawings particularly show only the parts related to the main parts of the present invention, and omit other parts.

In the figure, telephone line L1. L2 is switched and connected to either the telephone 2 or the modem 3 via the network control device 1, and the dial tone sent from the exchange (not shown) to the telephone line Ll and L2 is detected by the dial tone detection circuit 4. The detection data of the dial tone detection circuit 4 detected by the dial tone detection circuit 4 is applied to a system control section 5 that controls the entire facsimile machine.

Further, 6 is an operation display section consisting of an operation input section for the operator to properly operate the facsimile machine and a display section for displaying various messages etc. from the facsimile machine to the operator, and 7 is for executing predetermined transmission control procedures. 8 is a document reading section for reading the image of the transmitted document; 9 is an image recording section for recording and outputting the received image.

The network control device 1 includes a line changeover switch 11 for switching between the telephone lines Ll and L2, a coil 12 for maintaining direct current in the telephone lines Ll and L2, a capacitor 13 for cutting the direct current component, and a state in which signal components are insulated. a dial pulse generator 15 for transmitting a dial pulse signal as a selection signal to the telephone lines Ll and L2, and a dial pulse generator 15 for transmitting a dial pulse signal as a selection signal to the telephone lines LL and L2 (T) as a selection signal to the telephone lines LL and L2.
l) TMF occurrence date 16 for sending TMF signals
and an NCU (Network Controller) for controlling the dial pulse generator 15 and the DTMF generator side 6.
ollUnit (network control device) is composed of a control unit 17.

The dial pulse generator 15 has 10pps and 20pps.
It is equipped with a function of generating two types of dial pulses, and one of them is selected by the signal applied from the NCU control unit 17 to the mode input terminal MODE, and the NC
It generates a number of dial pulses corresponding to the value of the signal applied from the U control unit 17 to the data input terminal DATA. D
TMF generator side 6 DTMF corresponding to the value of the signal applied from the NCU control unit 17 to the data input terminal DATA
Generate a signal.

If the signaling data transferred from the system control unit 5 is 10pps, the NCU control unit 17 sets the operation mode of the dial pulse generator 15 to 10pps.
With the mode set to generate a dial pulse of s, and when 20 pps is generated, the operation mode of the dial pulse generator 15 is set to a mode that generates a 20 pps dial pulse.
Thereafter, the dial data transferred from the system control section 5 is transferred to the dial pulse generation section 15. Also,
If the signaling data transferred from the system control section 5 is overflowing the DTMF, the dial data transferred thereafter is sent to the DTMF generation section 6.

Further, the line changeover switch 11 is controlled by the system control section 5.

When installing this facsimile machine with the above configuration,
When a service person connects the telephone lines LL and L2 to the network control device 1 and turns on the power while pressing one or more predetermined operation keys on the operation display section 6, the system control section 5 causes the second A test program as shown in the figure is executed to set the signaling system of the selection signal.

In this test program, first, the system control unit 5 switches the line changeover switch 11 to connect the telephone lines LL and L2.
from telephone 2 to modem 3 (processing 101)
.

This causes the telephone line 1iL1. L2
As a result, the exchange determines that the telephone lines L1 and L2 are in a calling state, and sends out a hail dial tone to indicate that they are ready to accept a selection signal. It will be done.

In this way, the system control unit 5 performs the time waiting process 102 until the dial tone is sent from the exchange.
After that, the NCU control unit 17 is instructed to transmit "1" as a DTMF signal (processing 103).

As a result, the DTMF signal generated by the DTMF generating section 16 and instructing the dial 1 is outputted to the telephone lines LL and L2. If the exchange is able to distinguish this DTMF signal, it turns off the dial tone and waits for the next selection signal, so the system control unit 5 determines whether the dial tone detection circuit 4 has detected a dial tone. is determined (determination 104).

' Then, if the result of judgment 104 is NO when no dial tone is detected, this telephone line LL
, Since a DTMF signal can be used in L2, the signal system of the selection signal is set to the DTMF system (processing 10
5).

This signal method setting allows data corresponding to the signal method to be
A nonvolatile storage device provided inside the system control unit 5, such as a battery-backed RA for storing various state variables of a facsimile machine.
This is done by storing it in a random access memory (M) or the like.

If the result of judgment 104 is YES, system control unit 5 instructs NCU control unit 17 to transmit “1” with a dial pulse of 20 pps (process 106).
).

As a result, the dial 1 generated from the dial pulse generator 15 is transmitted to the telephone lines LL and L2.
A dial pulse signal of ps is output. If the exchange is able to distinguish this 20 pps dial pulse signal, it turns off the dial tone and waits for the next selection signal. It is determined whether or not it is (determination 107).

Then, judge 10 when no dial tone is detected.
If the result of step 7 is NO, this telephone line LL, L
2, a 20 pps dial pulse signal can be used, so the signal system of the selection signal is set to the 20 pps dial pulse system (processing 108).

If the result of the judgment 107 is YES, the system control unit 5 instructs the NCU control unit 17 to transmit “1” with a dial pulse of 10 pps (process 109).
.

As a result, a 10 pps dial pulse signal generated from the dial pulse generator 15 is output to the ffi, W lines Ll and L2. If the exchange is able to distinguish this 1 opps dial pulse signal, it turns off the dial tone and waits for the next selection signal. (Decision 110).

Then, judgment 11 is made when no dial tone is detected.
If the result of 0 is No, this telephone line LL, L
2, a 10 pps dial pulse signal can be used, so the signal system of the selection signal is set to the 10 pps dial pulse system (processing 112).

Furthermore, if the result of the judgment 110 is YES, this means that the selection signal is not normally output to the telephone lines LL and L2, so the system control unit 5 does not display the abnormality on the operation display unit 6. Process 111), in this case Process 1
12, and set the selection signal to the most likely 10 pps dial pulse method.

After completing the above processing 1 (15, 106, 112 and setting any one of the Shinbun force methods), the system control unit 5 returns the line changeover switch 11 to switch the telephone lines LL and L2 to the telephone 2 side. The connection process 113) terminates this eggplant 1-program.

In this way, the signaling system of the selection signal is set to the signaling system that is compatible with the telephone lines L1, 1, and 2. Moreover, once this setting is set, it is retained, and when the single-picture information is transmitted thereafter, the signal system stored in the system control unit 5 is read out, and the corresponding signal system is thereby set. The NCU control unit 17 is controlled and a selection signal is sent out using an appropriate signaling method.

By the way, in the above-mentioned embodiment, there were three types of selection signal signaling systems: DTMF, 10pps + 2Qpps, but some countries use exchanges that use 16pps dial pulses, and in such countries similar In order to obtain the effect, it is sufficient to add a means for generating a dial pulse of 16 pps and add a process for testing this dial pulse to the test program.

In the above-described embodiment, the present invention is applied to a facsimile machine, but the present invention can also be applied to other similar communication devices.

In addition, in the test program mentioned above, DTMF
Although the priority order for setting the signal system of the selection signal is set in the order of signal, 20 pps dial pulse, and 10 pps dial pulse, this order is not limited to this. Furthermore, in order to minimize the time required to set the signal system, the dial pulse is set to the shortest "1".
is sent to the telephone line, but the value to be output is not limited to this.

[Effects] As explained above, according to the present invention, when one communication device is installed, selection signals for different types of signaling systems are sequentially generated and sent to the telephone line, and a dial tone is sent from the exchange each time. The system determines whether or not the dial tone is being sent, and sets the signal method when the dial tone is no longer sent as the signal method for the selection signal on the telephone line, reducing the effort required to install communication equipment. get the advantage of

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a facsimile machine according to an embodiment of the present invention, and FIG. 2 is a flowchart showing an example of a test program. DESCRIPTION OF SYMBOLS 1... Network control device, 2... Telephone, 3... Modem, 4... Dial tone detection circuit, 5... System control section, 6... Operation display section, 11... Line Selector switch, 12... Coil, 13... Capacitor, 14
...1~Lance, 15...Dial pulse generation part,
16...DTMF generation section, 17...Net1 control section. \ hmm'

Claims (1)

[Claims] A selection signal method setting method for a communication device using a telephone line as a transmission line, comprising selection signal generation means for generating selection signals of a plurality of different signal methods, and dial tone detection means for detecting a dial tone on the telephone line. , when the device is installed, the selection signal generation means sequentially generates selection signals of different types of signal systems, and each time it is determined whether or not the dial tone detection means detects a dial tone, and whether or not a dial tone is detected. A method for setting a selection signal method, characterized in that a method for setting a selection signal generated when the telephone line is not available is set as a signal method for a selection signal in the telephone line.