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JPH01146653U - - Google Patents

Info

Publication number
JPH01146653U
JPH01146653U JP4234088U JP4234088U JPH01146653U JP H01146653 U JPH01146653 U JP H01146653U JP 4234088 U JP4234088 U JP 4234088U JP 4234088 U JP4234088 U JP 4234088U JP H01146653 U JPH01146653 U JP H01146653U
Authority
JP
Japan
Prior art keywords
monitor
switch
telephone device
door intercom
intercom function
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
Application number
JP4234088U
Other languages
English (en)
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 filed Critical
Priority to JP4234088U priority Critical patent/JPH01146653U/ja
Publication of JPH01146653U publication Critical patent/JPH01146653U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Description

【図面の簡単な説明】
第1図は本考案のドアホン機能付電話装置の一
実施例の回路図、第2図は従来のドアホン機能付
電話装置の回路図である。 SW……モニタスイツチ、FS……フツクス
イツチ、1……玄関子機、2……局線切換スイツ
チ、2a……玄関子機端子、2b……外線端子、
3……切換スイツチ、3a……呼出音端子、3b
……受話器端子、CPU……制御回路、HY
HYHY……ハイブリツトコイル、A,A
,A,A,A……増幅器、4……送受器
、4a……受話器、5……拡声スピーカ、5a…
…発振器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 玄関子機と、フツクスイツチの操作に応じて送
    受信できる送受器とを備えたドアホン機能付電話
    装置において、モニタ用スピーカと、モニタスイ
    ツチと、オンフツク状態で前記モニタスイツチの
    操作に応じて前記玄関子機から前記送受器へ送ら
    れる信号を前記モニタ用スピーカに切換える切換
    スイツチとを備えたことを特徴とするドアホン機
    能付電話装置。
JP4234088U 1988-03-30 1988-03-30 Pending JPH01146653U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4234088U JPH01146653U (ja) 1988-03-30 1988-03-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4234088U JPH01146653U (ja) 1988-03-30 1988-03-30

Publications (1)

Publication Number Publication Date
JPH01146653U true JPH01146653U (ja) 1989-10-09

Family

ID=31268750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4234088U Pending JPH01146653U (ja) 1988-03-30 1988-03-30

Country Status (1)

Country Link
JP (1) JPH01146653U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03109462U (ja) * 1990-02-23 1991-11-11

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726958A (en) * 1980-07-25 1982-02-13 Toshiba Electric Equip Corp Interphone device
JPS5946057B2 (ja) * 1977-07-11 1984-11-10 松下電器産業株式会社 磁気記録再生装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946057B2 (ja) * 1977-07-11 1984-11-10 松下電器産業株式会社 磁気記録再生装置
JPS5726958A (en) * 1980-07-25 1982-02-13 Toshiba Electric Equip Corp Interphone device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03109462U (ja) * 1990-02-23 1991-11-11

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