JPS60127088U - Telephone device calling circuit - Google Patents

Telephone device calling circuit

Info

Publication number
JPS60127088U
JPS60127088U JP1309684U JP1309684U JPS60127088U JP S60127088 U JPS60127088 U JP S60127088U JP 1309684 U JP1309684 U JP 1309684U JP 1309684 U JP1309684 U JP 1309684U JP S60127088 U JPS60127088 U JP S60127088U
Authority
JP
Japan
Prior art keywords
calling
path
circuit
telephone device
calling circuit
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
JP1309684U
Other languages
Japanese (ja)
Other versions
JPH0628869Y2 (en
Inventor
賢 工藤
宣夫 小林
芦萱　吉喜
大井　也寸志
滝口　盛夫
小澤　隆徳
Original Assignee
神田通信工業株式会社
日本電信電話株式会社
岩崎通信機株式会社
株式会社ナカヨ通信機
日通工株式会社
株式会社大興電機製作所
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 神田通信工業株式会社, 日本電信電話株式会社, 岩崎通信機株式会社, 株式会社ナカヨ通信機, 日通工株式会社, 株式会社大興電機製作所 filed Critical 神田通信工業株式会社
Priority to JP1309684U priority Critical patent/JPH0628869Y2/en
Publication of JPS60127088U publication Critical patent/JPS60127088U/en
Application granted granted Critical
Publication of JPH0628869Y2 publication Critical patent/JPH0628869Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Devices For Supply Of Signal Current (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (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 drawings]

第１図は従来の内線路の回路構成側図、第２図は本考案
の一実施例としての回路構成図で−ある。 ＭＥ・・・主装置（本考案に関与する部分のみ図示゛し
た）、置、、・・・、置ｎ・・・電話機（本考案に関与
する部分のみ図示した）、Ｓｒ１．・・・、ｓｒｎ・・
・電話機信号切替リレー、ＮＷ、、・・・、　ＮＷ、・
・・電話機″通話回路、ＣＸＳ・・・呼出回路および呼
出通話選択スイッチ（ｐは１〜ｎ、ｑは、〜３）、ＳＷ
ｌ、・・・、８ｗ５・・・スイッチング回路、ＣＮ、、
　ＣＮ２・・・信号送出回路、Ａ・・・内線呼出路低出
力インピーダンス増幅器、輸、・・・９　Ｌｎ・・・呼
出通話路、Ｂ１．・・・９　Ｂｎ・・・電話機内増幅器
、ｓｐｌ、・・・、　ｓｐ、・・・スピーカ、ＩＣＭｌ
、　ＩＣ，Ｍ２・・・内線呼出通話路、ＡＬＬ・・・内
線呼出路、ＡＬＬ／ＩＣＭ・・・内線呼出路と内線呼出
通話路兼用回路。FIG. 1 is a side view of the circuit configuration of a conventional inner line, and FIG. 2 is a circuit diagram of an embodiment of the present invention. ME...Main device (only the parts related to the present invention are shown), Place..., Place n...Telephone (only the parts related to the present invention are shown), Sr1. ..., srn...
・Telephone signal switching relay, NW,..., NW,...
・Telephone "talking circuit, CXS... Calling circuit and calling call selection switch (p is 1 to n, q is to 3), SW
l,...,8w5...switching circuit, CN,...
CN2...signal sending circuit, A...extension calling line low output impedance amplifier,...9 Ln...calling line, B1. ...9 Bn...Telephone amplifier, spl,..., sp,...speaker, ICMl
, IC, M2...Extension calling line, ALL...Extension calling line, ALL/ICM...Circuit that can be used as both an extension calling line and an extension calling line.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数個の電話機と主装置から構成され、電話機端にて通
話路と呼出路を共用する電話装置において、主装着内の
通話路と呼出路を兼用した呼出回路と、低出力インピー
ダンスの呼出増幅器の出力段にスイッチング素子を有し
た呼出回路とを並列に接続し、前記スイッチング素子め
開閉によって、低出力インピーダンスを要する複数同時
呼出しと、通常の呼出し通話とを一つの通話路で可能な
らしめたことを特徴とする呼出゛回路。In a telephone device that is composed of multiple telephones and a main device, and which shares a calling path and a calling path at the telephone end, a calling circuit that serves as both a calling path and a calling path in the main equipment, and a low output impedance calling amplifier are used. A calling circuit having a switching element in the output stage is connected in parallel, and by opening and closing the switching element, multiple simultaneous calling requiring low output impedance and normal calling are made possible in one communication path. A calling circuit featuring:
JP1309684U 1984-02-03 1984-02-03 Telephone device calling circuit Expired - Lifetime JPH0628869Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1309684U JPH0628869Y2 (en) 1984-02-03 1984-02-03 Telephone device calling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1309684U JPH0628869Y2 (en) 1984-02-03 1984-02-03 Telephone device calling circuit

Publications (2)

Publication Number Publication Date
JPS60127088U true JPS60127088U (en) 1985-08-27
JPH0628869Y2 JPH0628869Y2 (en) 1994-08-03

Family

ID=30496782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1309684U Expired - Lifetime JPH0628869Y2 (en) 1984-02-03 1984-02-03 Telephone device calling circuit

Country Status (1)

Country Link
JP (1) JPH0628869Y2 (en)

Also Published As

Publication number Publication date
JPH0628869Y2 (en) 1994-08-03

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