JPS62161445U - - Google Patents
Info
- Publication number
- JPS62161445U JPS62161445U JP4913386U JP4913386U JPS62161445U JP S62161445 U JPS62161445 U JP S62161445U JP 4913386 U JP4913386 U JP 4913386U JP 4913386 U JP4913386 U JP 4913386U JP S62161445 U JPS62161445 U JP S62161445U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- detection circuit
- line
- going
- closes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の電話転送装置のブロツク図、
第２図はその検出回路の回路図、第３図は電話転
送装置の概略を表すブロツク図、第４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…プラグ、２３…電源回路、
２４…制御回路、２５…駆動回路、２６，２７…
検出回路、２８…表示回路、３１，３２…発光ダ
イオード、３３…ホトトランジスタ、３４…ホト
カプラ。
Figure 1 is a block diagram of the telephone transfer device of the present invention.
FIG. 2 is a circuit diagram of the detection circuit, FIG. 3 is a block diagram schematically showing a telephone transfer device, and FIG. 4 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...
Push-down switch, 21...Plug, 23...Power circuit,
24...Control circuit, 25...Drive circuit, 26, 27...
Detection circuit, 28...Display circuit, 31, 32...Light emitting diode, 33...Phototransistor, 34...Photocoupler.
Claims (1)
を該第１の電話器を介さずに閉結する第１のスイ
ツチと、第２の電話器が接続されている第２の電
話回線を該第２の電話器を介さずに閉結する第２
のスイツチと、該第１の電話回線と該第１の電話
器の接続状態を検出する第１の検出回路と、該第
２の電話回線と該第２の電話器の接続状態を検出
する第２の検出回路と、該第１の検出回路と該第
２の検出回路の出力に対応して転送動作を制御す
る制御回路とを有することを特徴とする電話転送
装置。 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 first detection circuit for detecting a connection state between the first telephone line and the first telephone; and a first detection circuit for detecting a connection state between the second telephone line and the second telephone. 1. A telephone transfer device comprising: two detection circuits; and a control circuit that controls a transfer operation in response to outputs of the first detection circuit and the second detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4913386U JPS62161445U (en) | 1986-04-01 | 1986-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4913386U JPS62161445U (en) | 1986-04-01 | 1986-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62161445U true JPS62161445U (en) | 1987-10-14 |
Family
ID=30871299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4913386U Pending JPS62161445U (en) | 1986-04-01 | 1986-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62161445U (en) |
-
1986
- 1986-04-01 JP JP4913386U patent/JPS62161445U/ja active Pending