JPS60116763U - Dial pulse output sound confirmation circuit - Google Patents
Dial pulse output sound confirmation circuitInfo
- Publication number
- JPS60116763U JPS60116763U JP419684U JP419684U JPS60116763U JP S60116763 U JPS60116763 U JP S60116763U JP 419684 U JP419684 U JP 419684U JP 419684 U JP419684 U JP 419684U JP S60116763 U JPS60116763 U JP S60116763U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- switching element
- dial pulse
- dial
- pulse output
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は本考案の実施例を示す回路図である。
Ｌ、、 Ｌ２・・・・・・線路端子、Ｈ３Ｉ〜Ｈ３４・
・・・・・フックスイッチ、Ｏ８１〜Ｏ８４・・・・・
・接点（機能スイッチの接点）、ＴＫＣ・・・・・・通
話回路ζＲ・・・・・・受話器、Ｑｌ・・・・・・トラ
ンジスタ（第１のスイッチング素子）、Ｏ２・・・・・
・トランジスタ（第２のスイッチング素子）、Ｔ□・・
・・・・変成器、ｍ−・・・・定電圧ダイオード（電源
回路）、ｚＤ２・・・・・・定電圧ダイオード（定電圧
素子）、ＳＰＡ・・・・・・拡声増幅器、ｓｐ・・・・
・・スピーカ、Ｏ３・・・・・・コンデンサ（高インピ
ーダンス素子）、Ｒ５・・・・・・抵抗器（高インピー
ダンス素子）。The figure is a circuit diagram showing an embodiment of the present invention. L,, L2...Line terminal, H3I~H34・
...Hook switch, O81-O84...
・Contact (function switch contact), TKC...Telephone circuit ζR...Telephone receiver, Ql...Transistor (first switching element), O2...
・Transistor (second switching element), T□...
...Transformer, m-... Constant voltage diode (power supply circuit), zD2... Constant voltage diode (constant voltage element), SPA... Public address amplifier, sp...・・・
...Speaker, O3...Capacitor (high impedance element), R5...Resistor (high impedance element).
Claims (1)
電源回路と、前記局部電源により動作しスピーカを駆動
する拡声増幅器と、ダイヤルパルスの送出中に前記電源
回路の動作を停止させる第１のスイッチング素子とを備
える電話機において、前記第１のスイッチング素子より
も線路側のループ回路へ挿入されたダイヤルパルスの送
出を行なう第２のスイッチング素子と、該第２のスイッ
チング素子と直列に接続された前記ダイヤルパルスに対
する交換機の応動を阻害しない端子電圧を生じ該端子電
圧を前記拡声増幅器の電源として供給する定電圧素子と
、前記第２のスイッチング素子の線路側と前記拡声増幅
器の入力側との間へ接続された前記ダイヤルパルスのク
リック成分を通過させる高インピーダンス素子とを設け
たことを特徴とするダイヤパルス送出音確認回路。A power supply circuit that supplies a local power supply based on the exchange power supply via a line, a loudspeaker amplifier that is operated by the local power supply and drives a speaker, and a first switching element that stops the operation of the power supply circuit during transmission of dial pulses. a second switching element that transmits a dial pulse inserted into a loop circuit on the line side of the first switching element; and the dial connected in series with the second switching element. a constant voltage element that generates a terminal voltage that does not inhibit the response of the exchange to pulses and supplies the terminal voltage as a power source for the loudspeaker amplifier; and a constant voltage element connected between the line side of the second switching element and the input side of the loudspeaker amplifier. and a high impedance element that allows a click component of the dial pulse to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP419684U JPS60116763U (en) | 1984-01-18 | 1984-01-18 | Dial pulse output sound confirmation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP419684U JPS60116763U (en) | 1984-01-18 | 1984-01-18 | Dial pulse output sound confirmation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60116763U true JPS60116763U (en) | 1985-08-07 |
Family
ID=30479539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP419684U Pending JPS60116763U (en) | 1984-01-18 | 1984-01-18 | Dial pulse output sound confirmation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60116763U (en) |
-
1984
- 1984-01-18 JP JP419684U patent/JPS60116763U/en active Pending
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