JPH01124748U - - Google Patents
Info
- Publication number
- JPH01124748U JPH01124748U JP2050588U JP2050588U JPH01124748U JP H01124748 U JPH01124748 U JP H01124748U JP 2050588 U JP2050588 U JP 2050588U JP 2050588 U JP2050588 U JP 2050588U JP H01124748 U JPH01124748 U JP H01124748U
- Authority
- JP
- Japan
- Prior art keywords
- charging circuit
- line switching
- switching relay
- relay
- powered
- 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
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の実施例のブロツク図である。
１……ラツチングリレー、２……データ側切替
信号、３……通話側切替信号、４……バツフアア
ンプ、Ｒ１，Ｒ２……抵抗、Ｃ１，Ｃ２……コン
デンサ、Ｄ１，Ｄ２……ダイオード、ＳＷ……電
源スイツチ、Ｅ……バツテリ、Ｌ１，Ｌ２……通
信回線接続端子、Ｌ３，Ｌ４……電話機接続端子
。
FIG. 1 is a block diagram of an embodiment of the present invention. 1...Latching relay, 2...Data side switching signal, 3...Talking side switching signal, 4...Buffer amplifier, R1 , R2 ...Resistor, C1 , C2 ...Capacitor, D1 , D 2 ...Diode, SW...Power switch, E...Battery, L1 , L2 ...Communication line connection terminal, L3 , L4 ...Telephone connection terminal.
Claims (1)
ネルギーを蓄えておく第１の充電回路と、装置の
電源を断とした直後に前記ラツチングリレーを駆
動するためのパルスを発生させるに必要な第２の
充電回路を有し、装置の電源を投入した時、必ず
、ライン切替えリレーが通話側に初期設定されま
た、ライン切替リレーがデータ側になつたまゝ電
源を切つてもライン切替リレーは通話側に自動的
に切替るように構成された事を特徴とする変復調
装置。 a first charging circuit that stores electrical energy necessary to operate the latching relay; and a second charging circuit that generates a pulse to drive the latching relay immediately after the device is powered off. It has a charging circuit, and when the device is powered on, the line switching relay is always set to the calling side by default, and even if the power is turned off while the line switching relay is on the data side, the line switching relay remains on the calling side. A modem device characterized in that it is configured to automatically switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2050588U JPH01124748U (en) | 1988-02-17 | 1988-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2050588U JPH01124748U (en) | 1988-02-17 | 1988-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01124748U true JPH01124748U (en) | 1989-08-24 |
Family
ID=31236930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2050588U Pending JPH01124748U (en) | 1988-02-17 | 1988-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124748U (en) |
-
1988
- 1988-02-17 JP JP2050588U patent/JPH01124748U/ja active Pending
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