JPH02126489U - - Google Patents

Info

Publication number
JPH02126489U
JPH02126489U JP3503789U JP3503789U JPH02126489U JP H02126489 U JPH02126489 U JP H02126489U JP 3503789 U JP3503789 U JP 3503789U JP 3503789 U JP3503789 U JP 3503789U JP H02126489 U JPH02126489 U JP H02126489U
Authority
JP
Japan
Prior art keywords
sound source
office line
transformer
changeover switch
call path
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
JP3503789U
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 JP3503789U priority Critical patent/JPH02126489U/ja
Publication of JPH02126489U publication Critical patent/JPH02126489U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】
第1図は本考案に係る音源送出回路の概略構成
を示す図、第2図はその従来例を示す図、第3図
は第2図の回路の改良例を示す図である。 1,2……局線、3……クロスポイントスイツ
チ、5a,5b……NIC、9a,9b……演算
増幅回路、10−1,10−2……インピーダン
ス変換回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 局線の保留時等に音源からの出力音を通話路切
    替スイツチおよびトランスを介して局線に送出す
    る電話装置の音源送出回路において、 前記通話路切替スイツチとトランスとの間にイ
    ンピーダンス変換回路を設け、各局線に至る信号
    ライン間における漏話を防止することを特徴とし
    た電話装置の音源送出回路。
JP3503789U 1989-03-28 1989-03-28 Pending JPH02126489U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3503789U JPH02126489U (ja) 1989-03-28 1989-03-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3503789U JPH02126489U (ja) 1989-03-28 1989-03-28

Publications (1)

Publication Number Publication Date
JPH02126489U true JPH02126489U (ja) 1990-10-18

Family

ID=31540045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3503789U Pending JPH02126489U (ja) 1989-03-28 1989-03-28

Country Status (1)

Country Link
JP (1) JPH02126489U (ja)

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