JPS6157653U

JPS6157653U -

Info

Publication number: JPS6157653U
Application number: JP14024284U
Authority: JP
Priority date: 1984-09-14
Filing date: 1984-09-14
Publication date: 1986-04-18

Description

[Brief explanation of the drawing]

第１図は本考案の１実施例構成図、第２図ない
し第４図は第１図図示本考案の１実施例構成の動
作を説明する動作説明図を示す。図中、１はフツク・ダイアル・リレー、２は切
換リレー、３はミユーテイングリレー、４はリン
グ・デイテクタ、５はフオトカプラを表す。 FIG. 1 is a configuration diagram of one embodiment of the present invention, and FIGS. 2 to 4 are operational explanatory diagrams for explaining the operation of the configuration of one embodiment of the present invention shown in FIG. 1. In the figure, 1 represents a hook dial relay, 2 a switching relay, 3 a muting relay, 4 a ring detector, and 5 a photocoupler.

Claims

[Scope of utility model registration request]

In a telephone line connection device that is provided between a line and an external device connected via a modem and controls connection with the line, a ring detector detects a calling signal sent from the line; A telephone connection device that connects a line to a telephone, a connected state in which the line is connected to a modem, and an open state in which it is not connected to the modem are alternately repeated based on instruction signals from the external device. A hook dialing device is provided between the hook dialing device and the modem, and the hook dialing device alternately switches between the connected state and the open state in order to emit the dial pulses. a short-circuiting device that short-circuits at least a line connected to the modem based on an instruction signal from the external device while repeating the call, and detects a state in which a call is being made via the telephone and is detected by the ring detector. 1. A telephone line connection device, characterized in that the telephone line connection device is configured to switch between receiving data via a modem and transmitting data via the modem using the call signal as a trigger.