JPS62161443U

JPS62161443U -

Info

Publication number: JPS62161443U
Application number: JP4913186U
Authority: JP
Priority date: 1986-04-01
Filing date: 1986-04-01
Publication date: 1987-10-14

Description

[Brief explanation of the drawing]

第１図は本考案の電話転送装置のブロツク図、
第２図は電話転送装置の概略を表すブロツク図、
第３図は従来の電話転送装置のブロツク図である
。１，２，４…電話交換機、３…電話転送装置、
１２，１４…トランス、１６…検出回路、１７…
押下スイツチ、２１…制御回路、２２…タイマ回
路、２３…駆動回路、２４…表示手段。 Figure 1 is a block diagram of the telephone transfer device of the present invention.
Figure 2 is a block diagram showing the outline of the telephone transfer device.
FIG. 3 is a block diagram of a conventional telephone transfer device. 1, 2, 4...telephone exchange, 3...telephone transfer device,
12, 14...Transformer, 16...Detection circuit, 17...
Press switch, 21...control circuit, 22...timer circuit, 23...drive circuit, 24...display means.

Claims

[Scope of utility model registration request]

a first switch that closes a first telephone line to which a first telephone is connected without going through the first telephone; and a second telephone line to which a second telephone is connected. A second telephone that closes the telephone without going through the second telephone.
a detection circuit that detects that the second telephone line is closed; a timer circuit that starts a timing operation when the detection circuit detects that the second telephone line is closed; A telephone transfer device comprising: a drive circuit that drives a switch connecting the first telephone line and the second telephone line when the timer circuit issues an output.