JPS59134969A - Transmission device - Google Patents

Abstract

PURPOSE:To realize a small-sized and inexpensive transmission device by uniting a network control device and an MODEM to one body, and executing a rationalization functionally. CONSTITUTION:In case a data terminal equipment 36 is capable of data communication, if a manual/automatic transmission switching jumper 37 is short, a control part 25 supervises whether a calling signal from the other party exists or not, and whether the telephone concerned is being used or not, through detecting parts 22, 23, and unless both of them are executed, the circuit is connected by operating a circuit connecting relay 20 about 3sec later. When a dial start button switch 29 is turned on, an auto-dial part 27 is operated, a dial pulse sender relay 21 is operated by outputting automatically a set dial number, it is sent out to a telephone circuit 17 through relay contacts 20a, 20b and a switch box 19, and the other party is called. When the other party answers, the fact that the data communication can be executed through the control part 25 is informed to the data terminal equipment 36 through an interface part 34, and a data is transmitted and received to and from the other party.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a transmission device equipped with a network control device and a modulation/demodulation device used for data communication over a telephone line.

Conventional configurations and their problems Traditionally, network control equipment and modem equipment each had independent functions and were usually housed in separate desktop cabinets, which took up storage space and were not connected. The disadvantage is that it is more expensive than data terminal equipment.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to provide a compact and inexpensive transmission device having the functions of a network control device and a modulation/demodulation device.

Structure of the Invention In order to achieve the above object, the transmission device of the present invention includes an automatic call reception means that automatically detects a ringing signal from a telephone line and closes the line, and automatically detects whether the telephone line is ready to make a call. an automatic dialing means that closes the line, an automatic dialing means that sends out a time cell signal, a manual calling/receiving means that manually connects the other party, and an ethernet between the data terminal device connected after the line is closed and the other party. A data mode demodulation means for performing communication, an interface section with the data terminal device, and a display means for displaying the settings, operations, and operating status of the automatic/manual call originating/receiving means are housed in a single housing. It is the composition.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

Figures 1 and 2 are external perspective views of the transmission device, where (1) is the main body case, (2) is the telephone line connection terminal, (3) is the office line cord, (4) is the lit source cord, ( 5) is the operation panel, (6) is a part of the line sound, and (7) is the display run-5 (
line, data communication in progress, automatic call reception, power), (8)
(9) Qd is the manual/auto switching button for the incoming call mode, (9) Qd is the manual call/incoming operation button, (01) is the auto timer section, (1 is the power switch, and 03 is the data terminal connector (15)
p), 04) is a converter, 0Q is a terminal for connecting this telephone, αG
is a fuse box. Fig. 3 is a circuit block diagram of the transmission equipment, where the surface shows the telephone line, (to) the main telephone, the wire the converter, (a) the line connection relay, (20a) (20b)
) is its contact, f2]) is the Daicel pulse sending relay,
(21a) is the contact point, (a) is the ringing signal detection section, (c) is the polarity reversal detection section used in this telephone, and the trout is the line protection device.
is the control section, (to) is the modulation/demodulation section, (b) is the auto tie cell section (including cell number and digit setting), (g) is the gate circuit, (g) is the cell start button switch, on tqn
is a manual call/receive button switch, function is a manual/automatic call switch, cl is a display section, ■ is an interface section with a data terminal device, (to) is a power supply section, and (to) is a data terminal device to be connected. , ζ off is a manual/automatic transmission switching jumper.

First, I will explain the automatic call (including automatic call) function. Now, when the data terminal device (to) is capable of data communication, if the manual/automatic call switching jumper (b) is short-circuited, the control unit (c) detects whether or not there is a calling signal from the other party through the detection unit 121m, and detects whether there is a call signal from the other party or not. Monitor whether it is in use, and if it is not in use, activate the line connection relay (a) after about 3 seconds to connect the line. At this time, a line lamp is displayed on the display section (to). When the Daicel start button switch 4 is turned on, the auto-closing cell part (A) operates, automatically outputs the set Daicel number, operates the Taicel pulse sending relay @, and connects the relay contacts (2oa) (2ob) and Send it to the converter (telephone line 07 through In) and call the other party. When the other party responds, the detection unit (c) detects the polarity reversal, and notifies the ETA terminal device (to) through the interface unit (b) that data communication is possible through the control unit (c), and transmits the data terminal device (to). sends and receives data to and from the other party through the modulation/demodulation section (E) and the line protection device (C), and after completion, the data terminal device (To) notifies the control section kan of the termination signal through the interface section [Yes], and the control section functions. turns off the line connection relay and puts it into the recovery state.

For manual transmission, set jumper (b) to oven.

First, call the other party using the main telephone (To), and when the other party answers, turn on the manual call button switch (A). As a result, the control section (c) turns on the line connection relay wire, switches the line to the modulation/demodulation side, and at the same time notifies the ETA terminal device (to) through the interface section (2) that data communication is possible. The following operation is the same as automatic call.

For automatic incoming calls, turn on the manual/automatic incoming call switch (A). When a calling signal is detected by the calling signal detection unit,
The control section (c) outputs an incoming call signal to the data terminal device CS through the interface section (b).

The data terminal device (to) transmits the terminal reception waiting signal to the control unit (
The control unit (to) turns on the line connection relay wire, closes the line, and switches to the modulation/demodulation side. At this time, a lamp is displayed on the display section 31. The following operations are the same as for making a call.

In the case of a manual incoming call, the ringing signal is detected by the telephone,
When the manual incoming call switch 0υ is turned on, the control unit (a) outputs an incoming call signal to the ETA terminal device ζ→ through the interface unit (to) (l). The following operations are the same as automatic call reception.

As described in detail, according to the present invention, a network control device and a modulation/demodulation device are integrated and functionally rationalized, so that a small and inexpensive transmission device can be realized.

[Brief explanation of drawings]

1 and 2 are external perspective views of a transmission device according to an embodiment of the present invention, and FIG. 3 is a circuit block diagram of the same transmission device. 0 Samurai...Converter, (A)...Line connection relay, Kari...
・・Tyre pulse sending relay, (A) ・・Call signal detection unit, (B) ・・Polarity reversal detection unit used in this telephone, (C) ・・Control unit, (To) ・・Modulation/demodulation unit, )...Auto tie cell section, (C)...Gate circuit, (G)...
Daicel start button switch, (to) 0◇...Manual incoming/outgoing call switch, (1)...Manual/automatic call switching button, (c)...Display, [Yes] ...Interface section, (To)...Power supply section, (→...Eta terminal device, (B)...Manual/automatic call switching Jisenper agent Yoshihiro Morimoto 1

Claims (1)

[Claims] 1. automatic call receiving means that automatically detects a ringing signal from an IE telephone line and closes the line; automatic call means that automatically detects whether the telephone line is in a callable state and closes the line;
an auto-daicel means for transmitting a time cell signal; a manual calling/receiving means for manually connecting to the other party; a data modulation/demodulation means for performing data communication between the connected data terminal device and the other party after the line is closed; and the data terminal device. and a display means for displaying the setting and operation of the automatic/manual call originating/receiving means as well as the operating status of the automatic/manual call originating/receiving means.