JPS6059660U - Telephone line switching circuit - Google Patents

Telephone line switching circuit

Info

Publication number
JPS6059660U
JPS6059660U JP14953483U JP14953483U JPS6059660U JP S6059660 U JPS6059660 U JP S6059660U JP 14953483 U JP14953483 U JP 14953483U JP 14953483 U JP14953483 U JP 14953483U JP S6059660 U JPS6059660 U JP S6059660U
Authority
JP
Japan
Prior art keywords
self
telephone line
holding relay
switching circuit
line
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.)
Granted
Application number
JP14953483U
Other languages
Japanese (ja)
Other versions
JPS643247Y2 (en
Inventor
仲田　淳嗣
江原　正光
斉藤　安彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP14953483U priority Critical patent/JPS6059660U/en
Publication of JPS6059660U publication Critical patent/JPS6059660U/en
Application granted granted Critical
Publication of JPS643247Y2 publication Critical patent/JPS643247Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Devices For Supply Of Signal Current (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案者がさきに考案した電話機の回線切換回
路図、第２図は本考案による電話機の回線切換回路の一
実施例図である。 置Ｉ〜置Ｎ・・・電話機、ＴＣ・・・通話回路、Ａ−・
・自己保持形継電器、ａ　Ｏ，ａ　１．　　ａ　２．−
　ａ　３・・・自己保持形継電器Ａの接点、Ｄ□９　Ｄ
２ｙ　Ｄ３ｔＤ、・・・ダイオード、Ｈ８・・・フック
スイッチ、Ｃ１゜Ｃ２・・・コンデンサ、１，２・・・
常用回線、３，４・・・予備回線。 第１図 第２図FIG. 1 is a diagram of a line switching circuit of a telephone previously devised by the present inventor, and FIG. 2 is a diagram of an embodiment of the line switching circuit of a telephone according to the present invention. Place I to Place N...Telephone, TC...Telephone circuit, A-...
・Self-holding relay, a O, a 1. a2. −
a 3...Contact of self-holding relay A, D□9 D
2y D3tD,...Diode, H8...Hook switch, C1°C2...Capacitor, 1,2...
Regular line, 3, 4...protection line. Figure 1 Figure 2

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ２対の電話回線に複数の電話機を自己保持形継電器の接
点を介し連接接続した電話機の回線切換回路において、
自己保持形継電器と第１のダイオードとの各々一端を通
話回路に接続し、前記自己保持形継電器と第１のダイオ
ードとの各々の他端を自己保持形継電器の接点に接続し
、どちらか一方が電話回線側に接続するようにし、自己
保持形継電器の前記他端と常用回線の一方２または予備
回線の一方４との間に、自己保持形継電器のブレーク接
点と並列にコンデンサを挿入し、第１のダイオードが接
続している前記通話回路と常用回線の一方２または予備
回線の一方４との間に、第１のダイオードと逆極性とな
るように第２の？゛イオード挿入し、通話回路と、前記
電話回線側とループを構成する常用回線の他方１またに
予備回線の他方３との間に、フックスイッチを挿入した
こ　　　−とを特徴とする電話機の回線切換回路。　　
　　−In a telephone line switching circuit in which multiple telephones are connected to two pairs of telephone lines via the contacts of a self-holding relay,
One end of each of the self-holding relay and the first diode is connected to a communication circuit, the other end of each of the self-holding relay and the first diode is connected to a contact point of the self-holding relay, and either one is connected to the telephone line side, and inserting a capacitor in parallel with the break contact of the self-holding relay between the other end of the self-holding relay and one of the regular lines 2 or one of the protection lines 4, A second ? A telephone line characterized in that a hook switch is inserted between the communication circuit and the other line 1 of the regular line or the other line 3 of the protection line constituting the telephone line side and the loop. switching circuit.
−
JP14953483U 1983-09-29 1983-09-29 Telephone line switching circuit Granted JPS6059660U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14953483U JPS6059660U (en) 1983-09-29 1983-09-29 Telephone line switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14953483U JPS6059660U (en) 1983-09-29 1983-09-29 Telephone line switching circuit

Publications (2)

Publication Number Publication Date
JPS6059660U true JPS6059660U (en) 1985-04-25
JPS643247Y2 JPS643247Y2 (en) 1989-01-27

Family

ID=30331914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14953483U Granted JPS6059660U (en) 1983-09-29 1983-09-29 Telephone line switching circuit

Country Status (1)

Country Link
JP (1) JPS6059660U (en)

Also Published As

Publication number Publication date
JPS643247Y2 (en) 1989-01-27

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